From 15ea95e95662dce507e3d0ee5492d3c72b9ba608 Mon Sep 17 00:00:00 2001
From: kondamounika873-del <kondamounika873@gmail.com>
Date: Sun, 9 Aug 2026 16:04:30 +0530
Subject: [PATCH] Update index.mdpython open_world.py

---
 docs/gdevelop5/publishing/index.md | 2130 +++++++++++++++++++++++++++-
 1 file changed, 2127 insertions(+), 3 deletions(-)
diff --git a/docs/gdevelop5/publishing/index.md b/docs/gdevelop5/publishing/index.md
index 973ac55e970..284a2c162ca 100644
--- a/docs/gdevelop5/publishing/index.md
+++ b/docs/gdevelop5/publishing/index.md
@@ -1,13 +1,1627 @@
----
+const buildingMat = new THREE.MeshStandardMaterial({ color: 0x888888 });
+        for (let i = -5; i <= 5; i += 2) {
+            for (let j = -5; j <= 5; j += 2) {
+                if (i === 0 && j === 0) continue; // Skip player spawn
+                const height = Math.random() * 5 + 2;
+                const bGeo = new THREE.BoxGeometry(1.5, height, 1.5);
+                const building = new THREE.Mesh(bGeo, buildingMat);
+                building.position.set(i * 5, height / 2, j * 5);
+                scene.add(building);
+            }
+        }
+
+        // 6. Controls / Movement Listener
+        const keys = {};
+        window.addEventListener('keydown', (e) => keys[e.key.toLowerCase()] = true);
+        window.addEventListener('keyup', (e) => keys[e.key.toLowerCase()] = false);
+
+        // 7. Game Loop
+        function animate() {
+            requestAnimationFrame(animate);
+
+            // Move player
+            const speed = 0.1;
+            if (keys['w']) player.position.z -= speed;
+            if (keys['s']) player.position.z += speed;
+            if (keys['a']) player.position.x -= speed;
+            if (keys['d']) player.position.x += speed;
+
+            // Camera follow player
+            camera.position.x = player.position.x;
+            camera.position.y = player.position.y + 5;
+            camera.position.z = player.position.z + 8;
+            camera.lookAt(player.position);
+
+            renderer.render(scene, camera);
+        }
+        animate();
+
+        // Handle window resizing
+        window.addEventListener('resize', () => {
+            camera.aspect = window.innerWidth / window.innerHeight;
+            camera.updateProjectionMatrix();
+            renderer.setSize(window.innerWidth, window.innerHeight);
+        });
+    </script>
+</body>
+</html><!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>Mini 3D Open World</title>
+    <style>
+        body { margin: 0; overflow: hidden; }
+        canvas { display: block; }
+        #info {
+            position: absolute; top: 10px; left: 10px;
+            color: white; font-family: monospace; background: rgba(0,0,0,0.5);
+            padding: 10px; border-radius: 5px;
+        }
+    </style>
+</head>
+<body>
+    <div id="info">Use W, A, S, D keys to move the player around the map.</div>
+    
+    <!-- Load Three.js Library -->
+    <script src="https://cloudflare.com"></script>
+    <script>
+        // 1. Scene, Camera, and Renderer Setup
+        const scene = new THREE.Scene();
+        scene.background = new THREE.Color(0x87ceeb); // Sky blue
+
+        const camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
+        const renderer = new THREE.WebGLRenderer({ antialias: true });
+        renderer.setSize(window.innerWidth, window.innerHeight);
+        document.body.appendChild(renderer.domElement);
+
+        // 2. Lighting
+        const ambientLight = new THREE.AmbientLight(0xffffff, 0.6);
+        scene.add(ambientLight);
+        const dirLight = new THREE.DirectionalLight(0xffffff, 0.8);
+        dirLight.position.set(10, 20, 10);
+        scene.add(dirLight);
+
+        // 3. Ground (The World)
+        const groundGeo = new THREE.PlaneGeometry(200, 200);
+        const groundMat = new THREE.MeshStandardMaterial({ color: 0x333333 });
+        const ground = new THREE.Mesh(groundGeo, groundMat);
+        ground.rotation.x = -Math.PI / 2;
+        scene.add(ground);
+
+        // 4. Player Object (Like 
+        -from ursina import *
+from ursina.prefabs.first_person_controller import FirstPersonController
+
+app = Ursina()
+
+# --- WORLD SETUP ---
+# Create a massive ground plane (the city floor)
+ground = Entity(model='plane', scale=(1000, 1, 1000), texture='grass', texture_scale=(100, 100), collider='mesh')
+
+# Create some basic buildings/blocks to drive around
+buildings = []
+import random
+random.seed(42)
+for i in range(20):
+    x = random.randint(-200, 200)
+    z = random.randint(-200, 200)
+    y_scale = random.randint(10, 40)
+    building = Entity(
+        model='cube',
+        position=(x, y_scale / 2, z),
+        scale=(15, y_scale, 15),
+        color=color.gray,
+        collider='box'
+    )
+    buildings.append(building)
+
+# --- PLAYER SETUP (On Foot) ---
+player = FirstPersonController()
+player.position = (0, 2, 0)
+player.cursor.visible = False
+
+# --- VEHICLE SETUP ---
+car = Entity(model='cube', color=color.red, scale=(3, 1.5, 5), position=(10, 1, 10), collider='box')
+car_speed = 0
+max_speed = 50
+acceleration = 20
+steering_speed = 60
+
+# Game State Tracking
+is_driving = False
+
+# Instructions UI
+instruction_text = Text(
+    text="Walk to the RED CAR and press 'E' to Drive.\nPress 'E' again to exit.\nWASD to Move/Drive. Mouse to look.",
+    position=(-0.5, 0.4),
+    color=color.white
+)
+
+def update():
+    global is_driving, car_speed
+
+    # Check distance between player and car to allow entry
+    distance_to_car = (player.position - car.position).length()
+
+    if not is_driving:
+        # ON FOOT MODE
+        player.enabled = True
+        # Keep the camera attached to the player
+        camera.position = player.position + Vec3(0, 2, 0)
+        camera.rotation = player.rotation
+        
+        # Interaction prompt
+        if distance_to_car < 5:
+            instruction_text.text = "Press 'E' to enter the vehicle"
+        else:
+            instruction_text.text = "Walk to the RED CAR and press 'E' to Drive."
+    
+    else:
+        # DRIVING MODE
+        player.enabled = False
+        instruction_text.text = "Driving! Press 'E' to Exit."
+        
+        # Car Physics & Movement
+        # Accelerate / Reverse
+        if held_keys['w']:
+            car_speed = min(car_speed + acceleration * time.dt, max_speed)
+        elif held_keys['s']:
+            car_speed = max(car_speed - acceleration * time.dt, -max_speed / 2)
+        else:
+            # Friction / Natural slowdown
+            if car_speed > 0:
+                car_speed -= acceleration * 0.5 * time.dt
+            elif car_speed < 0:
+                car_speed += acceleration * 0.5 * time.dt
+
+        # Steering (Only steer if moving)
+        if car_speed != 0:
+            direction = 1 if car_speed > 0 else -1
+            if held_keys['d']:
+                car.rotation_y += steering_speed * time.dt * direction
+            if held_keys['a']:
+                car.rotation_y -= steering_speed * time.dt * direction
+
+        # Move the car forward based on its rotation
+        car.position += car.forward * car_speed * time.dt
+
+        # Camera follows the car (Third-person view)
+        camera.position = car.position - car.forward * 12 + Vec3(0, 5, 0)
+        camera.look_at(car)
+
+def input(key):
+    global is_driving
+    
+    # Enter / Exit vehicle mechanic
+    if key == 'e':
+        distance_to_car = (player.position - car.position).length()
+        if not is_driving and distance_to_car < 5:
+            # Enter Car
+            is_driving = True
+            player.visible = False
+        elif is_driving:
+            # Exit Car
+            is_driving = False
+            player.position = car.position + car.right * 4 + Vec3(0, 1, 0)
+            player.visible = True
+
+app.run()
+Use code with caution.🗺️ Next Steps for "Real Everything"To evolve this simple framework into a massive, realistic game like GTA, game development studios use complex pipelines:Game Engine: Shift from Python to industrial engines like Unreal Engine 5 (uses C++) or Unity (uses C#). They handle high-end graphics and physics naturally.3D Assets: You need photorealistic 3D models of cars, buildings, and people created in software like Blender or Autodesk Maya.AI Systems: Traffic algorithms and pedestrian behaviors are coded to simulate a living city.Networking: Thousands of lines of multiplayer netcode are required to sync cars, bullets, and player movements across servers.If you want to continue building this game, let me know:Would you prefer to expand this script with shooting mechanics or traffic systems?Are you interested in moving this to a more powerful engine like Unity or Unreal Engine?Do you want to add 3D models to replace the colorful boxes?Tell me what feature you want to add next, and I will generate the code or steps for it.RetrocubeA Quick Guide on How to Creating Games Like Grand Theft Auto3D Modeling of Buildings, Landscapes, and Props: Artists use 3D modeling software, like Autodesk Maya or Blender, to create buildings, streets, vehicles, and ob...--
 title: Publishing games
 icon: material/cloud-upload
 ---
-# Publishing games
+from ursina import *
+from ursina.prefabs.first_person_controller import FirstPersonController
+import random
+
+app = Ursina()
+window.color = color.rgb(10, 10, 20)
+
+# --- WORLD & ENVIRONMENT ---
+ground = Entity(model='plane', scale=(2000, 1, 2000), texture='grass', texture_scale=(200, 200), collider='mesh')
+sun = DirectionalLight(y=20, rotation=(45, -45, 0))
+sun.look_at(ground)
+
+# Generate a 3D Grid City
+buildings = []
+for x in range(-150, 151, 60):
+    for z in range(-150, 151, 60):
+        if x != 0 or z != 0:
+            h = random.randint(20, 60)
+            buildings.append(Entity(model='cube', position=(x, h/2, z), scale=(30, h, 30), color=color.dark_gray, collider='box'))
+
+# --- POPULATION (AI Pedestrians) ---
+peds = []
+for _ in range(15):
+    ped = Entity(model='capsule', color=color.random_color(), position=(random.randint(-100, 100), 1, random.randint(-100, 100)), scale=(1, 2, 1), collider='box')
+    ped.direction = Vec3(random.uniform(-1, 1), 0, random.uniform(-1, 1)).normalized()
+    peds.append(ped)
+
+# --- VEHICLE AND PROPS ---
+car = Entity(model='cube', color=color.red, scale=(3, 1.5, 6), position=(15, 1, 15), collider='box')
+headlight = SpotLight(parent=car, position=(0, 0, 3), rotation=(0, 0, 0), color=color.yellow, intensity=15)
+car_speed, max_speed, accel, steer_speed = 0.0, 60.0, 25.0, 70.0
+
+# --- PLAYER CONTROLLER ---
+player = FirstPersonController(position=(0, 2, 0))
+player.cursor.visible = False
+
+# --- STATE & USER INTERFACE ---
+is_driving = False
+wanted_stars = 0
+player_health = 100
+
+ui_panel = Entity(parent=camera.ui, model='quad', scale=(0.4, 0.25), position=(-0.65, 0.35), color=color.black66)
+hud_text = Text(text="", position=(-0.82, 0.45), scale=1.5, color=color.gold)
+wanted_text = Text(text="", position=(-0.82, 0.38), scale=1.5, color=color.red)
+minimap = Entity(parent=camera.ui, model='quad', color=color.black33, scale=(0.2, 0.2), position=(0.7, -0.35))
+player_dot = Entity(parent=minimap, model='circle', color=color.lime, scale=(0.1, 0.1))
+
+def update():
+    global car_speed, is_driving, wanted_stars, player_health
+    
+    # 1. AI Pedestrian Behavior
+    for ped in peds:
+        ped.position += ped.direction * time.dt * 3
+        if abs(ped.x) > 200 or abs(ped.z) > 200:
+            ped.direction *= -1
+            
+        # Check if car hits a pedestrian
+        if is_driving and (ped.position - car.position).length() < 3.5 and ped.enabled:
+            ped.enabled = False
+            wanted_stars = min(wanted_stars + 1, 5)
+            destroy(ped)
+
+    # 2. Player Logic & Interaction
+    dist = (player.position - car.position).length()
+    
+    if not is_driving:
+        player.enabled = True
+        camera.position = player.position + Vec3(0, 2, 0)
+        camera.rotation = player.rotation
+        player_dot.position = Vec2(player.x / 1000, player.z / 1000)
+    else:
+        player.enabled = False
+        player.position = car.position
+        player_dot.position = Vec2(car.x / 1000, car.z / 1000)
+
+        # 3. Driving Physics Chain
+        if held_keys['w']:
+            car_speed = min(car_speed + accel * time.dt, max_speed)
+        elif held_keys['s']:
+            car_speed = max(car_speed - accel * time.dt, -max_speed / 2)
+        else:
+            car_speed -= math.copysign(accel * 0.4 * time.dt, car_speed) if abs(car_speed) > 0.1 else car_speed
+
+        if car_speed != 0:
+            factor = 1 if car_speed > 0 else -1
+            if held_keys['d']: car.rotation_y += steer_speed * time.dt * factor
+            if held_keys['a']: car.rotation_y -= steer_speed * time.dt * factor
+
+        car.position += car.forward * car_speed * time.dt
+        
+        # 4. Camera Follow System
+        camera.position = car.position - car.forward * 14 + Vec3(0, 6, 0)
+        camera.look_at(car.position + car.forward * 2)
+
+    # 5. UI Updates
+    hud_text.text = f"HP: {player_health} | SPD: {int(abs(car_speed))} MPH\n[E] Enter/Exit Car"
+    wanted_text.text = "WANTED: " + ("⭐" * wanted_stars if wanted_stars > 0 else "CLEAN")
+
+def input(key):
+    global is_driving
+    if key == 'e':
+        if not is_driving and (player.position - car.position).length() < 6:
+            is_driving = True
+            player.visible = False
+        elif is_driving:
+            is_driving = False
+            player.position = car.position + car.right * 4 + Vec3(0, 1, 0)
+            player.visible = True
+
+app.run()
+Use code with caution.🕹️ What This Code DoesLine 10-16 (The City Grid): Dynamically builds a modular street grid populated with random skyscrapers using a programming loop.Line 19-23 (AI Life): Populates the city with moving capsules that simulate random citizens walking the streets.Line 26-27 (Real-world Mechanics): Binds local lighting to the front bumper of the car entity, casting projection beams into the dark.Line 51-57 (Wanted Levels): Adds a collision-event listener. If you crash your car into a pedestrian, the game registers the hit and increases your Wanted Star Rating.Line 35-37 & 76-78 (Advanced HUD): Renders a tracking minimap in the corner that translates your 3D world space into a 2D navigation coordinate.🚀 To Advance FurtherTell me what we should build next to keep growing this engine:Should we add a gun shooting mechanic with target crosshairs?Do you want police cars that actively chase you when your stars go up?Would you like to add a garage system to switch between different vehicles?Try without personalization
 
 GDevelop allows you to publish your games to any modern platform: desktop, web, and mobile. The game needs to be exported first.
 
 To export the game, click **Share** in the GDevelop interface. You will be presented with multiple options to choose from:
+Ursina()
+ground = Entity(
+    model='plane',
+    scale=999,
+    texture='white_cube'
+)
+car = Entity(
+    model='cube',
+    color=color.red,
+    scale=(2, 1, 4),
+    y=1
+)
+camera.y = 8
+def update():
+    camera.x = car.x
+    camera.z = car.z - 15
+    camera.look_at(car)
+    v = held_keys['w']current_mode == "FPS":# Search vicinity loop for closest vehicle node arraynearest_car = Noneclosest_range = 7.0for v in vehicles_pool:camera.vehicles_pool:evaluated_range = (player.position - v.position).length()if evaluated_range < closest_range:closest_range = evaluated_rangenearest_car = vif nearest_car:current_mode = "DRIVING"active_vehicle = nearest_caractive_vehicle.floating_tag.enabled = Falseplayer.visible = Falseelse:# Safely exit execution loop sequenceif active_vehicle:current_mode = "FPS"player.position = active_vehicle.position + active_vehicle.right * 4.5 + Vec3(0, 1, 0)player.visible = Trueactive_vehicle.floating_tag.enabled = Trueactive_vehicle.current_speed = 0active_vehicle = Noneapp.run()
+### 🎮 How to Play This Sandbox Engine
+1. **Movement**: Use **W, A, S, D** to walk around on foot. Move the mouse to look around in full 3D space.
+2. **Drive Cars**: Walk up to any of the three vehicles (Red Sports Car, Orange SUV, or Gray Truck) and press **E** to jump inside. The camera automatically shifts to a dynamic 3rd-person racing view. Use **W/S** to accelerate/reverse and **A/D** to turn the steering column. Press **E** again to park and exit the vehicle.
+3. **Weapon System**: Click the **Left Mouse Button** while walking around on foot to fire golden high-velocity projectile rounds from your barrel tracking mount.
+4. **Law Enforcement System**: If your vehicle impacts pedestrians or you open fire in public blocks, your **WANTED STARS** meter will climb. Police interceptors will instantly deploy into the neighborhood infrastructure, flashing active sirens and pursuing your telemetry to shut down your health bar. 
+
+This engine is setup and current_mode == "FPS":# Search vicinity loop for closest vehicle node arraynearest_car = Noneclosest_range = 7.0for v in vehicles_pool:from ursina import *
+from ursina.prefabs.first_person_controller import FirstPersonController
+import random
+import math
+
+app = Ursina()
+
+# --- WINDOW SETTINGS ---
+window.title = "Ultimate Open World Sandbox Engine"
+window.borderless = False
+window.fullscreen = False
+window.exit_button.visible = False
+window.fps_counter.enabled = True
+
+# --- GLOBAL GAME VARIABLES ---
+current_mode = "FPS"  # Modes: FPS, DRIVING
+player_health = 100
+player_money = 650
+wanted_stars = 0
+active_vehicle = None
+score = 0
+day_time = 0.2
+ambient_intensity = 0.5
+
+# --- DICTIONARIES FOR AUDIO AND STYLING ---
+game_colors = {
+    "ground": color.rgb(40, 45, 50),
+    "road": color.rgb(25, 25, 25),
+    "sidewalk": color.rgb(120, 120, 120),
+    "building": color.rgb(80, 90, 100),
+    "ui_bg": color.rgba(0, 0, 0, 200),
+    "text_main": color.rgb(255, 255, 255),
+    "text_alert": color.rgb(255, 50, 50),
+    "hud_green": color.rgb(50, 255, 50)
+}
+
+# --- WORLD ENVIRONMENT SETUP ---
+# Infinite-style map limits
+MAP_BOUNDS = 400
+
+# Massive ground texture layout
+world_floor = Entity(
+    model='plane',
+    scale=(MAP_BOUNDS * 2, 1, MAP_BOUNDS * 2),
+    color=game_colors["ground"],
+    texture='noise',
+    texture_scale=(100, 100),
+    collider='mesh'
+)
+
+# Dynamic Environment Lights
+sky_light = DirectionalLight(y=40, rotation=(55, -45, 0))
+sky_light.look_at(world_floor)
+
+# --- URBAN CITY GENERATION ENGINE ---
+# Generates grid blocks, roads, intersections, and skyscrapers
+buildings_list = []
+road_networks = []
+sidewalks = []
+
+def generate_city_grid():
+    block_spacing = 80
+    road_width = 16
+    block_size = 45
+    
+    for x in range(-MAP_BOUNDS + 80, MAP_BOUNDS - 80, block_spacing):
+        for z in range(-MAP_BOUNDS + 80, MAP_BOUNDS - 80, block_spacing):
+            # Skip the immediate spawning central square zone
+            if abs(x) < 40 and abs(z) < 40:
+                continue
+                
+            # Place Sidewalk foundations
+            sw = Entity(
+                model='cube',
+                position=(x, 0.1, z),
+                scale=(block_size + 4, 0.3, block_size + 4),
+                color=game_colors["sidewalk"],
+                collider='box'
+            )
+            sidewalks.append(sw)
+            
+            # Cluster buildings within each grid block layout
+            sub_sections = [-12, 12]
+            for sx in sub_sections:
+                for sz in sub_sections:
+                    building_height = random.randint(25, 85)
+                    b = Entity(
+                        model='cube',
+                        position=(x + sx, building_height / 2, z + sz),
+                        scale=(18, building_height, 18),
+                        color=color.rgb(random.randint(60,110), random.randint(70,120), random.randint(80,130)),
+                        collider='box'
+                    )
+                    buildings_list.append(b)
+                    
+            # Build horizontal structural road planes
+            road_h = Entity(
+                model='plane',
+                position=(x, 0.02, z + block_spacing/2),
+                scale=(block_spacing, 1, road_width),
+                color=game_colors["road"],
+                collider='mesh'
+            )
+            road_networks.append(road_h)
+            
+            # Build vertical structural road planes
+            road_v = Entity(
+                model='plane',
+                position=(x + block_spacing/2, 0.02, z),
+                scale=(road_width, 1, block_spacing),
+                color=game_colors["road"],
+                collider='mesh'
+            )
+            road_networks.append(road_v)
+
+generate_city_grid()
+
+# Border walls blocking map escape routes
+borders = [
+    Entity(model='cube', position=(0, 50, MAP_BOUNDS), scale=(MAP_BOUNDS*2, 100, 5), color=color.black, collider='box'),
+    Entity(model='cube', position=(0, 50, -MAP_BOUNDS), scale=(MAP_BOUNDS*2, 100, 5), color=color.black, collider='box'),
+    Entity(model='cube', position=(MAP_BOUNDS, 50, 0), scale=(5, 100, MAP_BOUNDS*2), color=color.black, collider='box'),
+    Entity(model='cube', position=(-MAP_BOUNDS, 50, 0), scale=(5, 100, MAP_BOUNDS*2), color=color.black, collider='box'),
+]
+
+# --- PLAYER FPS CONTROLLER CREATION ---
+player = FirstPersonController()
+player.position = (0, 2, 0)
+player.cursor.visible = False
+player.cursor.color = color.red
+player.speed = 12
+
+# Weapon Attachment Visualizer
+weapon_barrel = Entity(
+    parent=camera,
+    model='cube',
+    color=color.dark_gray,
+    scale=(0.15, 0.15, 0.9),
+    position=(0.4, -0.3, 0.8)
+)
+
+# --- CLASS SCHEMATICS FOR VECHICLES AND AI ---
+class SandboxVehicle(Entity):
+    def __init__(self, v_type, label, p_model, p_color, p_scale, p_pos, max_spd, acc, weight):
+        super().__init__(
+            model=p_model,
+            color=p_color,
+            scale=p_scale,
+            position=p_pos,
+            collider='box'
+        )
+        self.v_type = v_type
+        self.label = label
+        self.current_speed = 0.0
+        self.max_speed = max_spd
+        self.acceleration = acc
+        self.weight_factor = weight
+        self.steering_angle = 68
+        
+        # Dual Left/Right Front bumper projection beams
+        self.light_l = SpotLight(parent=self, position=(-1, 0, scale_z/2 if hasattr(self, 'scale_z') else 2), rotation=(0,0,0), color=color.white, intensity=10)
+        self.light_r = SpotLight(parent=self, position=(1, 0, scale_z/2 if hasattr(self, 'scale_z') else 2), rotation=(0,0,0), color=color.white, intensity=10)
+        
+        # Text popup label hanging overhead
+        self.floating_tag = Text(
+            text=f"[{label}] 'E' to drive",
+            parent=self,
+            position=(0, 2, 0),
+            scale=4,
+            billboard=True,
+            color=color.yellow
+        )
+
+class PedestrianAI(Entity):
+    def __init__(self, position_coords):
+        super().__init__(
+            model='capsule',
+            color=color.random_color(),
+            position=position_coords,
+            scale=(1.1, 2.2, 1.1),
+            collider='box'
+        )
+        self.walk_speed = random.uniform(2.5, 4.5)
+        self.move_vector = Vec3(random.uniform(-1, 1), 0, random.uniform(-1, 1)).normalized()
+        self.life_timer = 0.0
+
+class CityTrafficAI(Entity):
+    def __init__(self, spawn_pos):
+        super().__init__(
+            model='cube',
+            color=color.light_gray,
+            scale=(3, 1.6, 5.5),
+            position=spawn_pos,
+            collider='box'
+        )
+        self.travel_speed = 18
+        self.route_heading = random.choice([Vec3(1,0,0), Vec3(-1,0,0), Vec3(0,0,1), Vec3(0,0,-1)])
+        self.rotation_y = math.degrees(math.atan2(self.route_heading.x, self.route_heading.z))
+
+class PoliceCruiserAI(Entity):
+    def __init__(self, deploy_pos):
+        super().__init__(
+            model='cube',
+            color=color.black,
+            scale=(3.1, 1.6, 6.0),
+            position=deploy_pos,
+            collider='box'
+        )
+        # Unique secondary overhead light panel mesh layer
+        self.roof_bar = Entity(parent=self, model='cube', color=color.blue, scale=(0.9, 0.2, 0.3), position=(0, 0.9, 0))
+        self.chase_speed = 32
+        self.flash_timer = 0.0
+
+# --- INSTANTIATION PIPELINES ---
+vehicles_pool = [
+    SandboxVehicle("sports", "Sports Car Turbo", "cube", color.red, (3, 1.4, 5.8), (12, 1, 15), 65.0, 32.0, 1.0),
+    SandboxVehicle("suv", "Urban SUV 4x4", "cube", color.orange, (3.4, 1.9, 6.4), (-25, 1, 40), 48.0, 20.0, 1.8),
+    SandboxVehicle("truck", "Heavy Cargo Rig", "cube", color.dark_gray, (3.8, 3.0, 9.0), (45, 1.5, -30), 34.0, 11.0, 4.0)
+]
+
+pedestrians_pool = []
+for _ in range(40):
+    rx = random.randint(-MAP_BOUNDS + 30, MAP_BOUNDS - 30)
+    rz = random.randint(-MAP_BOUNDS + 30, MAP_BOUNDS - 30)
+    pedestrians_pool.append(PedestrianAI((rx, 1.1, rz)))
+
+traffic_pool = []
+for _ in range(15):
+    tx = random.choice(range(-MAP_BOUNDS + 60, MAP_BOUNDS - 60, 80)) + 40
+    tz = random.choice(range(-MAP_BOUNDS + 60, MAP_BOUNDS - 60, 80)) + 40
+    traffic_pool.append(CityTrafficAI((tx, 1, tz)))
+
+police_pool = []
+bullets_pool = []
+
+# --- MULTI-CONTAINER HUD AND DASHBOARD INTERFACE ---
+dashboard_backing = Entity(parent=camera.ui, model='quad', scale=(0.42, 0.26), position=(-0.65, 0.36), color=game_colors["ui_bg"])
+health_readout = Text(text="HEALTH: 100%", position=(-0.83, 0.46), scale=1.4, color=game_colors["hud_green"])
+finance_readout = Text(text="WALLET: $650", position=(-0.83, 0.42), scale=1.4, color=color.emerald)
+velocity_readout = Text(text="STATE: ON FOOT", position=(-0.83, 0.38), scale=1.4, color=game_colors["text_main"])
+
+wanted_star_panel = Entity(parent=camera.ui, model='quad', scale=(0.32, 0.07), position=(0.68, 0.45), color=game_colors["ui_bg"])
+wanted_label = Text(text="PRIORITY: CLEAN", position=(0.54, 0.46), scale=1.3, color=color.white)
+
+crosshair_dot = Entity(parent=camera.ui, model='circle', scale=0.006, color=color.rgba(255,0,0,180))
+
+# Mini visual map module
+navigation_map_frame = Entity(parent=camera.ui, model='quad', color=color.rgba(30,30,30,150), scale=(0.24, 0.24), position=(0.72, -0.34))
+gps_tracking_marker = Entity(parent=navigation_map_frame, model='circle', color=color.cyan, scale=(0.08, 0.08))
+
+# --- BULLET LOGIC CLASS ---
+class CombatProjectile(Entity):
+    def __init__(self, launch_pos, vector_dir):
+        super().__init__(
+            model='sphere',
+            color=color.gold,
+            scale=0.25,
+            position=launch_pos,
+            collider='box'
+        )
+        self.trajectory = vector_dir
+        self.velocity = 110
+        self.age = 0.0
+
+# --- GAME ENGINE CORE LOOPS ---
+def update():
+    global current_mode, active_vehicle, player_health, player_money, wanted_stars, day_time, ambient_intensity, score
+    
+    delta_frame_time = time.dt
+    if delta_frame_time > 0.1:  # Cap safety window during lag spikes
+        delta_frame_time = 0.1
+
+Use code with caution.# 1. Day / Night Environmental Clock Matrixday_time += delta_frame_time * 0.003if day_time > 1.0:day_time = 0.0ambient_intensity = math.sin(day_time * math.pi * 2) * 0.4 + 0.5window.color = color.rgb(ambient_intensity * 40, ambient_intensity * 50, ambient_intensity * 75)sky_light.intensity = ambient_intensity# 2. Player Spatial Logic Mappingif current_mode == "FPS":player.enabled = Truecamera.position = player.position + Vec3(0, 1.8, 0)camera.rotation = player.rotationgps_tracking_marker.position = Vec2(player.x / (MAP_BOUNDS * 2), player.z / (MAP_BOUNDS * 2))velocity_readout.text = f"VELOCITY: {int(player.speed)} KM/H\n[MODE]: RADAR INFANTRY"else:player.enabled = Falseif active_vehicle:player.position = active_vehicle.positiongps_tracking_marker.position = Vec2(active_vehicle.x / (MAP_BOUNDS * 2), active_vehicle.z / (MAP_BOUNDS * 2))# Driving physics solverif held_keys['w']:active_vehicle.current_speed = min(active_vehicle.current_speed + active_vehicle.acceleration * delta_frame_time, active_vehicle.max_speed)elif held_keys['s']:active_vehicle.current_speed = max(active_vehicle.current_speed - active_vehicle.acceleration * delta_frame_time, -active_vehicle.max_speed / 2)else:# Natural ground coefficient drag deceleratorif active_vehicle.current_speed > 0:active_vehicle.current_speed = max(active_vehicle.current_speed - (active_vehicle.acceleration * 0.6) * delta_frame_time, 0)elif active_vehicle.current_speed < 0:active_vehicle.current_speed = min(active_vehicle.current_speed + (active_vehicle.acceleration * 0.6) * delta_frame_time, 0)# Turning steering arc constraint calculationsif active_vehicle.current_speed != 0:direction_multiplier = 1 if active_vehicle.current_speed > 0 else -1if held_keys['d']:active_vehicle.rotation_y += active_vehicle.steering_angle * delta_frame_time * direction_multiplierif held_keys['a']:active_vehicle.rotation_y -= active_vehicle.steering_angle * delta_frame_time * direction_multiplier# Finalize positioning transformation array matrixactive_vehicle.position += active_vehicle.forward * active_vehicle.current_speed * delta_frame_time# Third-person lag tracking camera mount scriptcamera.position = active_vehicle.position - active_vehicle.forward * 16 + Vec3(0, 6.5, 0)camera.look_at(active_vehicle.position + active_vehicle.forward * 3)velocity_readout.text = f"SPEED: {int(abs(active_vehicle.current_speed))} MPH\n[GEAR]: {active_vehicle.label.upper()}"# 3. Weapons ballistic pipeline simulation loopfor b in list(bullets_pool):b.position += b.trajectory * b.velocity * delta_frame_timeb.age += delta_frame_time# Collision scan with civilian blocks and structural wallsif b.age > 3.0:bullets_pool.remove(b)destroy(b)continuefor ped in list(pedestrians_pool):if ped.enabled and (b.position - ped.position).length() < 2.0:ped.enabled = Falsewanted_stars = min(wanted_stars + 1, 5)player_money = max(player_money - 50, 0) # Fines deduction rule engineif b in bullets_pool:bullets_pool.remove(b)destroy(b)destroy(ped)pedestrians_pool.remove(ped)break# 4. Pedestrian AI Simulation pipeline grid traversalfor p in pedestrians_pool:p.position += p.move_vector * p.walk_speed * delta_frame_timep.life_timer += delta_frame_timeif p.life_timer > 5.0:if random.random() < 0.2:p.move_vector = Vec3(random.uniform(-1, 1), 0, random.uniform(-1, 1)).normalized()p.life_timer = 0.0# Bounds deflection scriptif abs(p.x) > MAP_BOUNDS - 10 or abs(p.z) > MAP_BOUNDS - 10:p.move_vector *= -1# Vehicular impact sensor array chainif current_mode == "DRIVING" and active_vehicle:if (p.position - active_vehicle.position).length() < 3.8 and p.enabled:p.enabled = Falsewanted_stars = min(wanted_stars + 1, 5)player_money = max(player_money - 100, 0)destroy(p)pedestrians_pool.remove(p)# 5. Background City Ambient Traffic AI Threadfor t in traffic_pool:t.position += t.route_heading * t.travel_speed * delta_frame_time# Reverse path when hitting structural map bordersif abs(t.x) > MAP_BOUNDS - 20 or abs(t.z) > MAP_BOUNDS - 20:t.route_heading *= -1t.rotation_y = math.degrees(math.atan2(t.route_heading.x, t.route_heading.z))# 6. Law Enforcement Dispatch Aggression Threat Matrixmanage_police_department(delta_frame_time)# 7. Refresh Core System Text Outputs Elementshealth_readout.text = f"VITAL SIGN: {int(player_health)}% HP"finance_readout.text = f"NET BANKING: ${player_money}"if player_health <= 0:health_readout.text = "CRITICAL: WASTED"player.speed = 0if active_vehicle:active_vehicle.current_speed = 0if wanted_stars > 0:wanted_label.text = "WANTED LEVEL: " + ("★" * wanted_stars)wanted_label.color = color.redelse:wanted_label.text = "STATUS: COVERT CLEAN"wanted_label.color = color.green--- LAW ENFORCEMENT ENGINE FUNCTIONS ---def manage_police_department(dt):global wanted_stars, player_health, current_mode, active_vehicle# Spawn unit algorithmsif wanted_stars > 0 and len(police_pool) < wanted_stars:spawn_offset_x = player.x + random.choice([-90, 90])spawn_offset_z = player.z + random.choice([-90, 90])police_pool.append(PoliceCruiserAI((spawn_offset_x, 1, spawn_offset_z)))for cop in list(police_pool):# Emergency beacon flasher automation frame calculatorcop.flash_timer += dt * 12if int(cop.flash_timer) % 2 == 0:cop.roof_bar.color = color.redelse:cop.roof_bar.color = color.blue# Target vectors calculation looptarget_coords = player.position if current_mode == "FPS" else active_vehicle.positionchase_vector = (target_coords - cop.position)distance_to_target = chase_vector.length()if distance_to_target > 1.5:direction_normalized = chase_vector.normalized()cop.position += direction_normalized * cop.chase_speed * dtcop.look_at(target_coords)# Structural attack engagement damage calculationsif distance_to_target < 5.0:player_health -= dt * 8.5if current_mode == "DRIVING":active_vehicle.current_speed *= 0.96  # Apply drag/pit maneuver braking matrix--- HARDWARE INPUT EVENT HOOKS ---def input(key):global current_mode, active_vehicle, wanted_stars, player_money# Weapon discharge fire command trigger mechanismif key == 'left mouse down' and current_mode == "FPS" and player_health > 0:aim_trajectory = camera.forwardbullets_pool.append(CombatProjectile(player.position + Vec3(0, 1.5, 0) + camera.forward * 1.5, aim_trajectory))# Vehicle board/exit interface integration network toggleif key == 'e' and player_health > 0:if current_mode == "FPS":# Search vicinity loop for closest vehicle node arraynearest_car = Noneclosest_range = 7.0for v in vehicles_pool:evaluated_range = (player.position - v.position).length()if evaluated_range < closest_range:closest_range = evaluated_rangeactive_vehicle.rightFalseplayer.visibleglobal current_mode, active_vehicle, wanted_stars, player_money# Weapon discharge fire command trigger mechanismif key == 'left mouse down' and current_mode == "FPS" and player_health > 0:aim_trajectory = camera.forwardbullets_pool.append(CombatProjectile(player.position + Vec3(0, 1.5, 0) + camera.forward * 1.5, aim_trajectory))# Vehicle board/exit interface integration network toggleif key == 'e' and player_health > 0:if current_mode == "FPS":# Search vicinity loop for closest vehicle node arraynearest_car = Noneclosest_range = 7.0for v in vehicles_pool:evaluated_range = (player.position - v.position).length()if evaluated_range < closest_range:closest_range = evaluated_rangenearest_car = vif nearest_car:current_mode = "DRIVING"active_vehicle = nearest_caractive_vehicle.floating_tag.enabled = Falseplayer.visible = Falseelse:# Safely exit execution loop sequenceif active_vehicle:current_mode = "FPS"player.position = active_vehicle.position + active_vehicle.right * 4.5 + Vec3(0, 1, 0)player.visible = Trueactive_vehicle.floating_tag.enabled = Trueactive_vehicle.current_speed = 0active_vehicle = Noneapp.run()
+### 🎮 How to Play This Sandbox Engine
+1. **Movement**: Use **W, A, S, D** to walk around on foot. Move the mouse to look around in full 3D space.
+2. **Drive Cars**: Walk up to any of the three vehicles (Red Sports Car, Orange SUV, or Gray Truck) and press **E** to jump inside. The camera automatically shifts to a dynamic 3rd-person racing view. Use **W/S** to accelerate/reverse and **A/D** to turn the steering column. Press **E** again to park and exit the vehicle.
+3. **Weapon System**: Click the **Left Mouse Button** while walking around on foot to fire golden high-velocity projectile rounds from your barrel tracking mount.
+4. **Law Enforcement System**: If your vehicle impacts pedestrians or you open fire in public blocks, your **WANTED STARS** meter will climb. Police interceptors will instantly deploy into the neighborhood infrastructure, flashing active sirens and pursuing your telemetry to shut down your health bar. 
+
+This engine is setup and optimized for easy extension. If you want to modify things further, let me know if you would like to add a **custom shop menu** to spend your wallet funds, or **destructible target obstacles** in the city blocks!
+Try without personalizationnearest_caractive_vehicle.floating_tag.enabledactive_vehicle.positionTrueactive_vehicle.floating_tag.enabledglobal current_mode, active_vehicle, wanted_stars, player_money# Weapon discharge fire command trigger mechanismif key == 'left mouse down' and current_mode == "FPS" and player_health > 0:aim_trajectory = camera.forwardbullets_pool.append(CombatProjectile(player.position + Vec3(0, 1.5, 0) + camera.forward * 1.5, aim_trajectory))# Vehicle board/exit interface integration network toggleif key == 'e' and player_health > 0:if current_mode == "FPS":# Search vicinity loop for closest vehicle node arraynearest_car = Noneclosest_range = 7.0for v in vehicles_pool:evaluated_range = (player.position - v.position).length()if evaluated_range < closest_range:closest_range = evaluated_rangenearest_car = vif nearest_car:current_mode = "DRIVING"active_vehicle = nearest_caractive_vehicle.floating_tag.enabled = Falseplayer.visible = Falseelse:# Safely exit execution loop sequenceif active_vehicle:current_mode = "FPS"player.position = active_vehicle.position + active_vehicle.right * 4.5 + Vec3(0, 1, 0)player.visible = Trueactive_vehicle.floating_tag.enabled = Trueactive_vehicle.current_speed = 0active_vehicle = Noneapp.run()
+### 🎮 How to Play This Sandbox Engine
+1. **Movement**: Use **W, A, S, D** to walk around on foot. Move the mouse to look around in full 3D space.
+2. **Drive Cars**: Walk up to any of the three vehicles (Red Sports Car, Orange SUV, or Gray Truck) and press **E** to jump inside. The camera automatically shifts to a dynamic 3rd-person racing view. Use **W/S** to accelerate/reverse and **A/D** to turn the steering column. Press **E** again to park and exit the vehicle.
+3. **Weapon System**: Click the **Left Mouse Button** while walking around on foot to fire golden high-velocity projectile rounds from your barrel tracking mount.
+4. **Law Enforcement System**: If your vehicle impacts pedestrians or you open fire in public blocks, your **WANTED STARS** meter will climb. Police interceptors will instantly deploy into the neighborhood infrastructure, flashing active sirens and pursuing your telemetry to shut down your health bar. 
+
+This engine is setup and optimized for easy extension. If you want to modify things further, let me know if you would like to add a **custom shop menu** to spend your wallet funds, or **destructible target obstacles** in the city blocks!
+Try without personalizationcamera.forwardnearest_caractive_vehicle.floating_tag.enabledactive_vehicle.positionactive_vehicle.rightwindow.exit_button.visiblewindow.fps_counter.enabledwindow.fullscreenwindow.borderless6501004000player.cursor.colorplayer.speedself.labelself.accelerationself.velocity110self.agemath.pitime.dt0.5window.colorTruecamera.positionplayer.rotationgps_tracking_marker.positionactive_vehicle.positiongps_tracking_marker.positionplayer.rotationgps_tracking_marker.positionactive_vehicle.acceleration1active_vehicle.accelerationmatrixactive_vehicle.positionactive_vehicle.forwardb.trajectoryscriptcamera.positiondelta_frame_timeb.ageb.velocityb.trajectoryb.velocitydelta_frame_timeb.ageped.enabledb.age20102Elementshealth_readout.textfrom ursina import *
+from ursina.prefabs.first_person_controller import FirstPersonController
+import random
+import math
+
+app = Ursina()
+
+# --- WINDOW SETTINGS ---
+window.title = "Ultimate Open World Sandbox Engine"
+window.borderless = False
+window.fullscreen = False
+window.exit_button.visible = False
+window.fps_counter.enabled = True
+
+# --- GLOBAL GAME VARIABLES ---
+current_mode = "FPS"  # Modes: FPS, DRIVING
+player_health = 100
+player_money = 650
+wanted_stars = 0
+active_vehicle = None
+score = 0
+day_time = 0.2
+ambient_intensity = 0.5
+
+# --- DICTIONARIES FOR AUDIO AND STYLING ---
+game_colors = {
+    "ground": color.rgb(40, 45, 50),
+    "road": color.rgb(25, 25, 25),
+    "sidewalk": color.rgb(120, 120, 120),
+    "building": color.rgb(80, 90, 100),
+    "ui_bg": color.rgba(0, 0, 0, 200),
+    "text_main": color.rgb(255, 255, 255),
+    "text_alert": color.rgb(255, 50, 50),
+    "hud_green": color.rgb(50, 255, 50)
+}
+
+# --- WORLD ENVIRONMENT SETUP ---
+# Infinite-style map limits
+MAP_BOUNDS = 400
+
+# Massive ground texture layout
+world_floor = Entity(
+    model='plane',
+    scale=(MAP_BOUNDS * 2, 1, MAP_BOUNDS * 2),
+    color=game_colors["ground"],
+    texture='noise',
+    texture_scale=(100, 100),
+    collider='mesh'
+)
+
+# Dynamic Environment Lights
+sky_light = DirectionalLight(y=40, rotation=(55, -45, 0))
+sky_light.look_at(world_floor)
+
+# --- URBAN CITY GENERATION ENGINE ---
+# Generates grid blocks, roads, intersections, and skyscrapers
+buildings_list = []
+road_networks = []
+sidewalks = []
+
+def generate_city_grid():
+    block_spacing = 80
+    road_width = 16
+    block_size = 45
+    
+    for x in range(-MAP_BOUNDS + 80, MAP_BOUNDS - 80, block_spacing):
+        for z in range(-MAP_BOUNDS + 80, MAP_BOUNDS - 80, block_spacing):
+            # Skip the immediate spawning central square zone
+            if abs(x) < 40 and abs(z) < 40:
+                continue
+                
+            # Place Sidewalk foundations
+            sw = Entity(
+                model='cube',
+                position=(x, 0.1, z),
+                scale=(block_size + 4, 0.3, block_size + 4),
+                color=game_colors["sidewalk"],
+                collider='box'
+            )
+            sidewalks.append(sw)
+            
+            # Cluster buildings within each grid block layout
+            sub_sections = [-12, 12]
+            for sx in sub_sections:
+                for sz in sub_sections:
+                    building_height = random.randint(25, 85)
+                    b = Entity(
+                        model='cube',
+                        position=(x + sx, building_height / 2, z + sz),
+                        scale=(18, building_height, 18),
+                        color=color.rgb(random.randint(60,110), random.randint(70,120), random.randint(80,130)),
+                        collider='box'
+                    )
+                    buildings_list.append(b)
+                    
+            # Build horizontal structural road planes
+            road_h = Entity(
+                model='plane',
+                position=(x, 0.02, z + block_spacing/2),
+                scale=(block_spacing, 1, road_width),
+                color=game_colors["road"],
+                collider='mesh'
+            )
+            road_networks.append(road_h)
+            
+            # Build vertical structural road planes
+            road_v = Entity(
+                model='plane',
+                position=(x + block_spacing/2, 0.02, z),
+                scale=(road_width, 1, block_spacing),
+                color=game_colors["road"],
+                collider='mesh'
+            )
+            road_networks.append(road_v)
+
+generate_city_grid()
+
+# Border walls blocking map escape routes
+borders = [
+    Entity(model='cube', position=(0, 50, MAP_BOUNDS), scale=(MAP_BOUNDS*2, 100, 5), color=color.black, collider='box'),
+    Entity(model='cube', position=(0, 50, -MAP_BOUNDS), scale=(MAP_BOUNDS*2, 100, 5), color=color.black, collider='box'),
+    Entity(model='cube', position=(MAP_BOUNDS, 50, 0), scale=(5, 100, MAP_BOUNDS*2), color=color.black, collider='box'),
+    Entity(model='cube', position=(-MAP_BOUNDS, 50, 0), scale=(5, 100, MAP_BOUNDS*2), color=color.black, collider='box'),
+]
+
+# --- PLAYER FPS CONTROLLER CREATION ---
+player = FirstPersonController()
+player.position = (0, 2, 0)
+player.cursor.visible = False
+player.cursor.color = color.red
+player.speed = 12
+
+# Weapon Attachment Visualizer
+weapon_barrel = Entity(
+    parent=camera,
+    model='cube',
+    color=color.dark_gray,
+    scale=(0.15, 0.15, 0.9),
+    position=(0.4, -0.3, 0.8)
+)
+
+# --- CLASS SCHEMATICS FOR VECHICLES AND AI ---
+class SandboxVehicle(Entity):
+    def __init__(self, v_type, label, p_model, p_color, p_scale, p_pos, max_spd, acc, weight):
+        super().__init__(
+            model=p_model,
+            color=p_color,
+            scale=p_scale,
+            position=p_pos,
+            collider='box'
+        )
+        self.v_type = v_type
+        self.label = label
+        self.current_speed = 0.0
+        self.max_speed = max_spd
+        self.acceleration = acc
+        self.weight_factor = weight
+        self.steering_angle = 68
+        
+        # Dual Left/Right Front bumper projection beams
+        self.light_l = SpotLight(parent=self, position=(-1, 0, scale_z/2 if hasattr(self, 'scale_z') else 2), rotation=(0,0,0), color=color.white, intensity=10)
+        self.light_r = SpotLight(parent=self, position=(1, 0, scale_z/2 if hasattr(self, 'scale_z') else 2), rotation=(0,0,0), color=color.white, intensity=10)
+        
+        # Text popup label hanging overhead
+        self.floating_tag = Text(
+            text=f"[{label}] 'E' to drive",
+            parent=self,
+            position=(0, 2, 0),
+            scale=4,
+            billboard=True,
+            color=color.yellow
+        )
+
+class PedestrianAI(Entity):
+    def __init__(self, position_coords):
+        super().__init__(
+            model='capsule',
+            color=color.random_color(),
+            position=position_coords,
+            scale=(1.1, 2.2, 1.1),
+            collider='box'
+        )
+        self.walk_speed = random.uniform(2.5, 4.5)
+        self.move_vector = Vec3(random.uniform(-1, 1), 0, random.uniform(-1, 1)).normalized()
+        self.life_timer = 0.0
+
+class CityTrafficAI(Entity):
+    def __init__(self, spawn_pos):
+        super().__init__(
+            model='cube',
+            color=color.light_gray,
+            scale=(3, 1.6, 5.5),
+            position=spawn_pos,
+            collider='box'
+        )
+        self.travel_speed = 18
+        self.route_heading = random.choice([Vec3(1,0,0), Vec3(-1,0,0), Vec3(0,0,1), Vec3(0,0,-1)])
+        self.rotation_y = math.degrees(math.atan2(self.route_heading.x, self.route_heading.z))
+
+class PoliceCruiserAI(Entity):
+    def __init__(self, deploy_pos):
+        super().__init__(
+            model='cube',
+            color=color.black,
+            scale=(3.1, 1.6, 6.0),
+            position=deploy_pos,
+            collider='box'
+        )
+        # Unique secondary overhead light panel mesh layer
+        self.roof_bar = Entity(parent=self, model='cube', color=color.blue, scale=(0.9, 0.2, 0.3), position=(0, 0.9, 0))
+        self.chase_speed = 32
+        self.flash_timer = 0.0
+
+# --- INSTANTIATION PIPELINES ---
+vehicles_pool = [
+    SandboxVehicle("sports", "Sports Car Turbo", "cube", color.red, (3, 1.4, 5.8), (12, 1, 15), 65.0, 32.0, 1.0),
+    SandboxVehicle("suv", "Urban SUV 4x4", "cube", color.orange, (3.4, 1.9, 6.4), (-25, 1, 40), 48.0, 20.0, 1.8),
+    SandboxVehicle("truck", "Heavy Cargo Rig", "cube", color.dark_gray, (3.8, 3.0, 9.0), (45, 1.5, -30), 34.0, 11.0, 4.0)
+]
+
+pedestrians_pool = []
+for _ in range(40):
+    rx = random.randint(-MAP_BOUNDS + 30, MAP_BOUNDS - 30)
+    rz = random.randint(-MAP_BOUNDS + 30, MAP_BOUNDS - 30)
+    pedestrians_pool.append(PedestrianAI((rx, 1.1, rz)))
+
+traffic_pool = []
+for _ in range(15):
+    tx = random.choice(range(-MAP_BOUNDS + 60, MAP_BOUNDS - 60, 80)) + 40
+    tz = random.choice(range(-MAP_BOUNDS + 60, MAP_BOUNDS - 60, 80)) + 40
+    traffic_pool.append(CityTrafficAI((tx, 1, tz)))
+
+police_pool = []
+bullets_pool = []
+
+# --- MULTI-CONTAINER HUD AND DASHBOARD INTERFACE ---
+dashboard_backing = Entity(parent=camera.ui, model='quad', scale=(0.42, 0.26), position=(-0.65, 0.36), color=game_colors["ui_bg"])
+health_readout = Text(text="HEALTH: 100%", position=(-0.83, 0.46), scale=1.4, color=game_colors["hud_green"])
+finance_readout = Text(text="WALLET: $650", position=(-0.83, 0.42), scale=1.4, color=color.emerald)
+velocity_readout = Text(text="STATE: ON FOOT", position=(-0.83, 0.38), scale=1.4, color=game_colors["text_main"])
+
+wanted_star_panel = Entity(parent=camera.ui, model='quad', scale=(0.32, 0.07), position=(0.68, 0.45), color=game_colors["ui_bg"])
+wanted_label = Text(text="PRIORITY: CLEAN", position=(0.54, 0.46), scale=1.3, color=color.white)
+
+crosshair_dot = Entity(parent=camera.ui, model='circle', scale=0.006, color=color.rgba(255,0,0,180))
+
+# Mini visual map module
+navigation_map_frame = Entity(parent=camera.ui, model='quad', color=color.rgba(30,30,30,150), scale=(0.24, 0.24), position=(0.72, -0.34))
+gps_tracking_marker = Entity(parent=navigation_map_frame, model='circle', color=color.cyan, scale=(0.08, 0.08))
+
+# --- BULLET LOGIC CLASS ---
+class CombatProjectile(Entity):
+    def __init__(self, launch_pos, vector_dir):
+        super().__init__(
+            model='sphere',
+            color=color.gold,
+            scale=0.25,
+            position=launch_pos,
+            collider='box'
+        )
+        self.trajectory = vector_dir
+        self.velocity = 110
+        self.age = 0.0
+
+# --- GAME ENGINE CORE LOOPS ---
+def update():
+    global current_mode, active_vehicle, player_health, player_money, wanted_stars, day_time, ambient_intensity, score
+    
+    delta_frame_time = time.dt
+    if delta_frame_time > 0.1:  # Cap safety window during lag spikes
+        delta_frame_time = 0.1
+
+color.blackfrom ursina import *
+from ursina.prefabs.first_person_controller import FirstPersonController
+import random
+import math
+
+app = Ursina()
+
+# --- WINDOW SETTINGS ---
+window.title = "Ultimate Open World Sandbox Engine"
+window.borderless = False
+window.fullscreen = False
+window.exit_button.visible = False
+window.fps_counter.enabled = True
+
+# --- GLOBAL GAME VARIABLES ---
+current_mode = "FPS"  # Modes: FPS, DRIVING
+player_health = 100
+player_money = 650
+wanted_stars = 0
+active_vehicle = None
+score = 0
+day_time = 0.2
+ambient_intensity = 0.5
+
+# --- DICTIONARIES FOR AUDIO AND STYLING ---
+game_colors = {
+    "ground": color.rgb(40, 45, 50),
+    "road": color.rgb(25, 25, 25),
+    "sidewalk": color.rgb(120, 120, 120),
+    "building": color.rgb(80, 90, 100),
+    "ui_bg": color.rgba(0, 0, 0, 200),
+    "text_main": color.rgb(255, 255, 255),
+    "text_alert": color.rgb(255, 50, 50),
+    "hud_green": color.rgb(50, 255, 50)
+}
+
+# --- WORLD ENVIRONMENT SETUP ---
+# Infinite-style map limits
+MAP_BOUNDS = 400
+
+# Massive ground texture layout
+world_floor = Entity(
+    model='plane',
+    scale=(MAP_BOUNDS * 2, 1, MAP_BOUNDS * 2),
+    color=game_colors["ground"],
+    texture='noise',
+    texture_scale=(100, 100),
+    collider='mesh'
+)
+
+# Dynamic Environment Lights
+sky_light = DirectionalLight(y=40, rotation=(55, -45, 0))
+sky_light.look_at(world_floor)
+
+# --- URBAN CITY GENERATION ENGINE ---
+# Generates grid blocks, roads, intersections, and skyscrapers
+buildings_list = []
+road_networks = []
+sidewalks = []
+
+def generate_city_grid():
+    block_spacing = 80
+    road_width = 16
+    block_size = 45
+    
+    for x in range(-MAP_BOUNDS + 80, MAP_BOUNDS - 80, block_spacing):
+        for z in range(-MAP_BOUNDS + 80, MAP_BOUNDS - 80, block_spacing):
+            # Skip the immediate spawning central square zone
+            if abs(x) < 40 and abs(z) < 40:
+                continue
+                
+            # Place Sidewalk foundations
+            sw = Entity(
+                model='cube',
+                position=(x, 0.1, z),
+                scale=(block_size + 4, 0.3, block_size + 4),
+                color=game_colors["sidewalk"],
+                collider='box'
+            )
+            sidewalks.append(sw)
+            
+            # Cluster buildings within each grid block layout
+            sub_sections = [-12, 12]
+            for sx in sub_sections:
+                for sz in sub_sections:
+                    building_height = random.randint(25, 85)
+                    b = Entity(
+                        model='cube',
+                        position=(x + sx, building_height / 2, z + sz),
+                        scale=(18, building_height, 18),
+                        color=color.rgb(random.randint(60,110), random.randint(70,120), random.randint(80,130)),
+                        collider='box'
+                    )
+                    buildings_list.append(b)
+                    
+            # Build horizontal structural road planes
+            road_h = Entity(
+                model='plane',
+                position=(x, 0.02, z + block_spacing/2),
+                scale=(block_spacing, 1, road_width),
+                color=game_colors["road"],
+                collider='mesh'
+            )
+            road_networks.append(road_h)
+            
+            # Build vertical structural road planes
+            road_v = Entity(
+                model='plane',
+                position=(x + block_spacing/2, 0.02, z),
+                scale=(road_width, 1, block_spacing),
+                color=game_colors["road"],
+                collider='mesh'
+            )
+            road_networks.append(road_v)
 
+generate_city_grid()
+
+# Border walls blocking map escape routes
+borders = [
+    Entity(model='cube', position=(0, 50, MAP_BOUNDS), scale=(MAP_BOUNDS*2, 100, 5), color=color.black, collider='box'),
+    Entity(model='cube', position=(0, 50, -MAP_BOUNDS), scale=(MAP_BOUNDS*2, 100, 5), color=color.black, collider='box'),
+    Entity(model='cube', position=(MAP_BOUNDS, 50, 0), scale=(5, 100, MAP_BOUNDS*2), color=color.black, collider='box'),
+    Entity(model='cube', position=(-MAP_BOUNDS, 50, 0), scale=(5, 100, MAP_BOUNDS*2), color=color.black, collider='box'),
+]
+
+# --- PLAYER FPS CONTROLLER CREATION ---
+player = FirstPersonController()
+player.position = (0, 2, 0)
+player.cursor.visible = False
+player.cursor.color = color.red
+player.speed = 12
+
+# Weapon Attachment Visualizer
+weapon_barrel = Entity(
+    parent=camera,
+    model='cube',
+    color=color.dark_gray,
+    scale=(0.15, 0.15, 0.9),
+    position=(0.4, -0.3, 0.8)
+)
+
+# --- CLASS SCHEMATICS FOR VECHICLES AND AI ---
+class SandboxVehicle(Entity):
+    def __init__(self, v_type, label, p_model, p_color, p_scale, p_pos, max_spd, acc, weight):
+        super().__init__(
+            model=p_model,
+            color=p_color,
+            scale=p_scale,
+            position=p_pos,
+            collider='box'
+        )
+        self.v_type = v_type
+        self.label = label
+        self.current_speed = 0.0
+        self.max_speed = max_spd
+        self.acceleration = acc
+        self.weight_factor = weight
+        self.steering_angle = 68
+        
+        # Dual Left/Right Front bumper projection beams
+        self.light_l = SpotLight(parent=self, position=(-1, 0, scale_z/2 if hasattr(self, 'scale_z') else 2), rotation=(0,0,0), color=color.white, intensity=10)
+        self.light_r = SpotLight(parent=self, position=(1, 0, scale_z/2 if hasattr(self, 'scale_z') else 2), rotation=(0,0,0), color=color.white, intensity=10)
+        
+        # Text popup label hanging overhead
+        self.floating_tag = Text(
+            text=f"[{label}] 'E' to drive",
+            parent=self,
+            position=(0, 2, 0),
+            scale=4,
+            billboard=True,
+            color=color.yellow
+        )
+
+class PedestrianAI(Entity):
+    def __init__(self, position_coords):
+        super().__init__(
+            model='capsule',
+            color=color.random_color(),
+            position=position_coords,
+            scale=(1.1, 2.2, 1.1),
+            collider='box'
+        )
+        self.walk_speed = random.uniform(2.5, 4.5)
+        self.move_vector = Vec3(random.uniform(-1, 1), 0, random.uniform(-1, 1)).normalized()
+        self.life_timer = 0.0
+
+class CityTrafficAI(Entity):
+    def __init__(self, spawn_pos):
+        super().__init__(
+            model='cube',
+            color=color.light_gray,
+            scale=(3, 1.6, 5.5),
+            position=spawn_pos,
+            collider='box'
+        )
+        self.travel_speed = 18
+        self.route_heading = random.choice([Vec3(1,0,0), Vec3(-1,0,0), Vec3(0,0,1), Vec3(0,0,-1)])
+        self.rotation_y = math.degrees(math.atan2(self.route_heading.x, self.route_heading.z))
+
+class PoliceCruiserAI(Entity):
+    def __init__(self, deploy_pos):
+        super().__init__(
+            model='cube',
+            color=color.black,
+            scale=(3.1, 1.6, 6.0),
+            position=deploy_pos,
+            collider='box'
+        )
+        # Unique secondary overhead light panel mesh layer
+        self.roof_bar = Entity(parent=self, model='cube', color=color.blue, scale=(0.9, 0.2, 0.3), position=(0, 0.9, 0))
+        self.chase_speed = 32
+        self.flash_timer = 0.0
+
+# --- INSTANTIATION PIPELINES ---
+vehicles_pool = [
+    SandboxVehicle("sports", "Sports Car Turbo", "cube", color.red, (3, 1.4, 5.8), (12, 1, 15), 65.0, 32.0, 1.0),
+    SandboxVehicle("suv", "Urban SUV 4x4", "cube", color.orange, (3.4, 1.9, 6.4), (-25, 1, 40), 48.0, 20.0, 1.8),
+    SandboxVehicle("truck", "Heavy Cargo Rig", "cube", color.dark_gray, (3.8, 3.0, 9.0), (45, 1.5, -30), 34.0, 11.0, 4.0)
+]
+
+pedestrians_pool = []
+for _ in range(40):
+    rx = random.randint(-MAP_BOUNDS + 30, MAP_BOUNDS - 30)
+    rz = random.randint(-MAP_BOUNDS + 30, MAP_BOUNDS - 30)
+    pedestrians_pool.append(PedestrianAI((rx, 1.1, rz)))
+
+traffic_pool = []
+for _ in range(15):
+    tx = random.choice(range(-MAP_BOUNDS + 60, MAP_BOUNDS - 60, 80)) + 40
+    tz = random.choice(range(-MAP_BOUNDS + 60, MAP_BOUNDS - 60, 80)) + 40
+    traffic_pool.append(CityTrafficAI((tx, 1, tz)))
+
+police_pool = []
+bullets_pool = []
+
+# --- MULTI-CONTAINER HUD AND DASHBOARD INTERFACE ---
+dashboard_backing = Entity(parent=camera.ui, model='quad', scale=(0.42, 0.26), position=(-0.65, 0.36), color=game_colors["ui_bg"])
+health_readout = Text(text="HEALTH: 100%", position=(-0.83, 0.46), scale=1.4, color=game_colors["hud_green"])
+finance_readout = Text(text="WALLET: $650", position=(-0.83, 0.42), scale=1.4, color=color.emerald)
+velocity_readout = Text(text="STATE: ON FOOT", position=(-0.83, 0.38), scale=1.4, color=game_colors["text_main"])
+
+wanted_star_panel = Entity(parent=camera.ui, model='quad', scale=(0.32, 0.07), position=(0.68, 0.45), color=game_colors["ui_bg"])
+wanted_label = Text(text="PRIORITY: CLEAN", position=(0.54, 0.46), scale=1.3, color=color.white)
+
+crosshair_dot = Entity(parent=camera.ui, model='circle', scale=0.006, color=color.rgba(255,0,0,180))
+
+# Mini visual map module
+navigation_map_frame = Entity(parent=camera.ui, model='quad', color=color.rgba(30,30,30,150), scale=(0.24, 0.24), position=(0.72, -0.34))
+gps_tracking_marker = Entity(parent=navigation_map_frame, model='circle', color=color.cyan, scale=(0.08, 0.08))
+
+# --- BULLET LOGIC CLASS ---
+class CombatProjectile(Entity):
+    def __init__(self, launch_pos, vector_dir):
+        super().__init__(
+            model='sphere',
+            color=color.gold,
+            scale=0.25,
+            position=launch_pos,
+            collider='box'
+        )
+        self.trajectory = vector_dir
+        self.velocity = 110
+        self.age = 0.0
+
+# --- GAME ENGINE CORE LOOPS ---
+def update():
+    global current_mode, active_vehicle, player_health, player_money, wanted_stars, day_time, ambient_intensity, score
+    
+    delta_frame_time = time.dt
+    if delta_frame_time > 0.1:  # Cap safety window during lag spikes
+        delta_frame_time = 0.1
+
+color.blackcolor.blueEntity(parent=camera.ui, model='circle', scale=0.006, color=color.rgba(255,0,0,180))color.goldWelcome to Gboard clipboard, any text that you copy will be saved here.Tap on a clip to paste it in the text box.Use the edit icon to pin, add or delete clips.Touch and hold a clip to pin it. Unpinned clips will be deleted after 1 hour.Use the edit icon to pin, add or delete clips.Here is a brand new, enhanced 250-line 3D game engine that is completely rewritten and ready for you to copy directly.
+This version includes on-foot shooting with visible bullet holes on walls, a 3D stunt ramp park, exploding vehicles that blow up when they take too much damage, a cash-collection system where you pick up floating money bags, and an active AI police pursuit team that hunts you down with blue and red strobe sirens.
+## 🛠️ Quick Installation
+Make sure you have Python and the Ursina engine installed before running the code:
+
+pip install ursina
+
+## 💻 Click the "Copy" Button below to get the Full Code
+
+from ursina import *from ursina.prefabs.first_person_controller import FirstPersonControllerimport random
+app = Ursina()
+window.title, window.fps_counter.enabled = "GTA 3D Python Edition", True
+# --- WORLD AND ENVIRONMENT ---ground = Entity(model='plane', scale=(1000, 1, 1000), color=color.dark_gray, texture='noise', texture_scale=(100, 100), collider='mesh')sky_light = DirectionalLight(y=30, rotation=(50, -40, 0))
+# Custom City Grid with a Stunt Ramp Playgroundblocks = []for x in range(-120, 121, 60):
+    for z in range(-120, 121, 60):
+        if x == 0 and z == 0:
+            # Build 3D Stunt Ramps in the central square
+            Entity(model='cube', position=(0, 2, 20), scale=(12, 1, 25), rotation_x=-25, color=color.orange, collider='box')
+            Entity(model='cube', position=(0, 5, 45), scale=(12, 1, 25), rotation_x=-15, color=color.orange, collider='box')
+            continue
+        h = random.randint(20, 75)
+        blocks.append(Entity(model='cube', position=(x, h/2, z), scale=(25, h, 25), color=color.rgb(70, 80, 90), collider='box'))
+# --- GAME PLAYABLE ENTITIES ---player = FirstPersonController(position=(0, 2, -10), speed=12)
+player.cursor.color, player.cursor.scale = color.red, 0.015
+weapon = Entity(parent=camera, model='cube', color=color.black, scale=(0.15, 0.12, 0.8), position=(0.35, -0.25, 0.6))muzzle_flash = Entity(parent=weapon, model='sphere', color=color.yellow, scale=0.3, position=(0, 0, 0.5), enabled=False)
+# Economy Loop: Floating Cash Pickupscash_pickups = []for _ in range(10):
+    gold_bag = Entity(model='sphere', color=color.gold, position=(random.randint(-80, 80), 1.5, random.randint(-80, 80)), scale=1.5, collider='box')
+    cash_pickups.append(gold_bag)
+# --- ADVANCED VEHICLE MATRIX CLASS ---class CityVehicle(Entity):
+    def __init__(self, name, model_type, body_color, start_pos, scale_dims):
+        super().__init__(model=model_type, color=body_color, position=start_pos, scale=scale_dims, collider='box')
+        self.name = name
+        self.speed = 0.0
+        self.max_speed = 55.0
+        self.accel = 24.0
+        self.steer_speed = 75.0
+        self.health = 100
+        self.is_dead = False
+        self.label = Text(text=f"[{name}] HP: 100\nPress 'E'", parent=self, position=(0, 2.5, 0), scale=3.5, billboard=True, color=color.yellow)
+vehicles = [
+    CityVehicle("Viper GT", "cube", color.red, (15, 1, 0), (3, 1.4, 6)),
+    CityVehicle("Police Cruiser", "cube", color.black, (-15, 1, 0), (3.2, 1.5, 6.2))
+]
+# Add strobe sirens specifically onto the police vehicle modelpolice_siren = Entity(parent=vehicles[1], model='cube', color=color.blue, scale=(0.8, 0.2, 0.3), position=(0, 0.8, 0))
+# --- LAW ENFORCEMENT THREAT CLASS ---class CopEnforcer(Entity):
+    def __init__(self, pos):
+        super().__init__(model='cube', color=color.blue, position=pos, scale=(3, 1.5, 6), collider='box')
+        self.roof_light = Entity(parent=self, model='cube', color=color.red, scale=(0.8, 0.2, 0.3), position=(0, 0.8, 0))
+        self.siren_timer = 0.0
+cops, bullets = [], []current_mode, driving_target, player_hp, cash_balance, wanted_stars = "FPS", None, 100, 650, 0
+# --- USER INTERFACE MODULES ---ui_bg = Entity(parent=camera.ui, model='quad', scale=(0.4, 0.22), position=(-0.65, 0.36), color=color.rgba(0,0,0,180))hud_main = Text(text="", position=(-0.82, 0.44), scale=1.4, color=color.white)hud_alert = Text(text="", position=(-0.82, 0.32), scale=1.4, color=color.red)
+minimap_frame = Entity(parent=camera.ui, model='quad', color=color.rgba(40,40,40,200), scale=(0.2, 0.2), position=(0.73, -0.36))minimap_dot = Entity(parent=minimap_frame, model='circle', color=color.cyan, scale=(0.08, 0.08))
+# --- BALLISTIC BULLET TRAJECTORY ---class Projectile(Entity):
+    def __init__(self, start, direction):
+        super().__init__(model='sphere', color=color.yellow, scale=0.2, position=start, collider='box')
+        self.direction = direction
+        self.age = 0.0
+# --- CORE GAME ENGINE PROCESS LOOPS ---def update():
+    global current_mode, driving_target, player_hp, cash_balance, wanted_stars
+    dt = time.dt
+    if dt > 0.05: dt = 0.05  # Delta lag protector
+    
+    # 1. Flash Muzzle Effects Timer
+    if muzzle_flash.enabled:
+        muzzle_flash.scale -= dt * 2
+        if muzzle_flash.scale.x <= 0:
+            muzzle_flash.enabled = False
+
+    # 2. Economy Money Spinner Animation & Hit Registration
+    for bag in list(cash_pickups):
+        bag.rotation_y += dt * 90
+        check_pos = player.position if current_mode == "FPS" else driving_target.position
+        if (bag.position - check_pos).length() < 3.5:
+            cash_balance += 150
+            cash_pickups.remove(bag)
+            destroy(bag)
+
+    # 3. Ballistic Update & Bullet Impact Mapping
+    for b in list(bullets):
+        b.position += b.direction * dt * 95
+        b.age += dt
+        if b.age > 2.0:
+            bullets.remove(b)
+            destroy(b)
+            continue
+        # Impact scan on buildings
+        for obj in blocks:
+            if (b.position - obj.position).length() < 13:
+                # Leave a permanent dark gray bullet mark on impact
+                Entity(model='sphere', color=color.dark_gray, position=b.position, scale=0.4)
+                if b in bullets: bullets.remove(b)
+                destroy(b)
+                break
+
+    # 4. Mode Logic: Foot Infantry vs Vehicle Simulation
+    if current_mode == "FPS":
+        player.enabled = True
+        camera.position = player.position + Vec3(0, 1.8, 0)
+        camera.rotation = player.rotation
+        minimap_dot.position = Vec2(player.x / 500, player.z / 500)
+        hud_main.text = f"VITAL HP: {int(player_hp)}%\nCASH INF: ${cash_balance}\nMODE: INFANTRY COMBAT"
+    else:
+        player.enabled = False
+        if driving_target:
+            player.position = driving_target.position
+            minimap_dot.position = Vec2(driving_target.x / 500, driving_target.z / 500)
+            
+            # Vehicle Physics Module
+            if held_keys['w'] and not driving_target.is_dead:
+                driving_target.speed = min(driving_target.speed + driving_target.accel * dt, driving_target.max_speed)
+            elif held_keys['s'] and not driving_target.is_dead:
+                driving_target.speed = max(driving_target.speed - driving_target.accel * dt, -driving_target.max_speed / 2)
+            else:
+                if driving_target.speed > 0: driving_target.speed = max(driving_target.speed - driving_target.accel * 0.5 * dt, 0)
+                elif driving_target.speed < 0: driving_target.speed = min(driving_target.speed + driving_target.accel * 0.5 * dt, 0)
+
+            if driving_target.speed != 0:
+                dir_mod = 1 if driving_target.speed > 0 else -1
+                if held_keys['d']: driving_target.rotation_y += driving_target.steer_speed * dt * dir_mod
+                if held_keys['a']: driving_target.rotation_y -= driving_target.steer_speed * dt * dir_mod
+
+            driving_target.position += driving_target.forward * driving_target.speed * dt
+            
+            # Crash damage calculator (Hitting city skyscrapers)
+            for b_block in blocks:
+                if (driving_target.position - b_block.position).length() < 14:
+                    driving_target.speed = -driving_target.speed * 0.4
+                    driving_target.health = max(driving_target.health - 15, 0)
+                    driving_target.label.text = f"[{driving_target.name}]\nHP: {driving_target.health}"
+
+            # Vehicle Fire/Explosion Trigger Sequence
+            if driving_target.health <= 0 and not driving_target.is_dead:
+                driving_target.is_dead = True
+                driving_target.color = color.black
+                wanted_stars = min(wanted_stars + 1, 5)
+                Entity(model='sphere', color=color.orange, position=driving_target.position, scale=5)
+
+            # Smooth dynamic chase rig camera anchor
+            camera.position = driving_target.position - driving_target.forward * 15 + Vec3(0, 5.5, 0)
+            camera.look_at(driving_target.position + driving_target.forward * 2)
+            hud_main.text = f"VEHICLE HP: {driving_target.health}%\nVELOCITY: {int(abs(driving_target.speed))} MPH\n[E] PARK & EXIT"
+
+    # 5. Law Enforcement Sirens & Dispatch Core Thread
+    manage_police_ai(dt)
+
+    # 6. Safety Health Reset Mechanics
+    if player_hp <= 0:
+        hud_main.text = "CRITICAL FAILURE: WASTED"
+        player.speed = 0
+# --- LAW ENFORCEMENT DISPATCH ROUTINE ---def manage_police_ai(dt):
+    global wanted_stars, player_hp, current_mode, driving_target
+    
+    # Pulse police patrol lights
+    if int(time.time() * 8) % 2 == 0:
+        police_siren.color = color.red
+    else:
+        police_siren.color = color.blue
+
+    if wanted_stars > 0 and len(cops) < wanted_stars:
+        cops.append(CopEnforcer(player.position + Vec3(random.choice([-60, 60]), 0, random.choice([-60, 60]))))
+
+    for cop in list(cops):
+        cop.siren_timer += dt * 10
+        cop.roof_light.color = color.red if int(cop.siren_timer) % 2 == 0 else color.blue
+        
+        target = player.position if current_mode == "FPS" else driving_target.position
+        chase_vector = (target - cop.position)
+        cop.look_at(target)
+        
+        if chase_vector.length() > 4.5:
+            cop.position += chase_vector.normalized() * dt * 26
+        else:
+            player_hp = max(player_hp - dt * 10, 0)
+            if current_mode == "DRIVING":
+                driving_target.health = max(driving_target.health - dt * 12, 0)
+
+    hud_alert.text = "WANTED LEVEL: " + ("★" * wanted_stars if wanted_stars > 0 else "CLEAN OPERATIVE")
+# --- MECHANICAL PERIPHERAL INPUT TRIGGERS ---def input(key):
+    global current_mode, driving_target, bullets, wanted_stars
+    
+    # Trigger Bullet Fire Pipeline (Foot Combat)
+
+if key == 'left mouse down' and current_mode == "FPS" and player_hp > 0:
+muzzle_flash.enabled, muzzle_flash.scale = True, 0.3
+bullets.append(Projectile(player.position + Vec3(0, 1.5, 0) + camera.forward * 1.2, camera.forward))
+if random.random() < 0.15:
+wanted_stars = min(wanted_stars + 1, 5)
+# Toggle Driving/Walking State Engine Matrix
+if key == 'e' and player_hp > 0:
+if current_mode == "FPS":
+nearest, min_dist = None, 7.0
+for v in vehicles:
+d = (player.position - v.position).length()
+if d < min_dist:
+min_dist = d
+nearest = v
+if nearest and not nearest.is_dead:
+current_mode = "DRIVING"
+driving_target = nearest
+driving_target.label.enabled = False
+player.visible = False
+else:
+if driving_target:
+current_mode = "FPS"
+player.position = driving_target.position + driving_target.right * 4 + Vec3(0, 1, 0)
+player.visible = True
+driving_target.label.enabled = True
+driving_target.speed = 0
+driving_target = None
+app.run()
+
+
+### 🎮 How to Interact with the Code
+1. **Fire and Leave Marks**: Left-click while running around on foot. Your weapon will fire high-speed projectiles, and when they hit the sides of the grey skyscrapers, they will leave bullet holes.
+2. **Hit the Stunt Park**: Grab the **Viper GT** (the red vehicle) or the **Police Car** by walking up to it and hitting **E**. Head directly toward the center of the map to hit the orange stunt ramps and fly through the air!
+3. **Exploding Physics**: If you ram your car into buildings at full speed, your vehicle's health bar will drop. If it hits `0%`, the car explodes into a giant orange ball and burns to a blackened frame.
+
+What feature should we add to this 250-line code base next? We can integrate an active **rocket launcher weapon** or set up **destructible checkpoints** to earn extra money!
+
+
+Here is a brand new, enhanced 250-line 3D game engine that is completely rewritten and ready for you to copy directly.
+This version includes on-foot shooting with visible bullet holes on walls, a 3D stunt ramp park, exploding vehicles that blow up when they take too much damage, a cash-collection system where you pick up floating money bags, and an active AI police pursuit team that hunts you down with blue and red strobe sirens.
+## 🛠️ Quick Installation
+Make sure you have Python and the Ursina engine installed before running the code:
+
+pip install ursina
+
+## 💻 Click the "Copy" Button below to get the Full Code
+
+from ursina import *from ursina.prefabs.first_person_controller import FirstPersonControllerimport random
+app = Ursina()
+window.title, window.fps_counter.enabled = "GTA 3D Python Edition", True
+# --- WORLD AND ENVIRONMENT ---ground = Entity(model='plane', scale=(1000, 1, 1000), color=color.dark_gray, texture='noise', texture_scale=(100, 100), collider='mesh')sky_light = DirectionalLight(y=30, rotation=(50, -40, 0))
+# Custom City Grid with a Stunt Ramp Playgroundblocks = []for x in range(-120, 121, 60):
+    for z in range(-120, 121, 60):
+        if x == 0 and z == 0:
+            # Build 3D Stunt Ramps in the central square
+            Entity(model='cube', position=(0, 2, 20), scale=(12, 1, 25), rotation_x=-25, color=color.orange, collider='box')
+            Entity(model='cube', position=(0, 5, 45), scale=(12, 1, 25), rotation_x=-15, color=color.orange, collider='box')
+            continue
+        h = random.randint(20, 75)
+        blocks.append(Entity(model='cube', position=(x, h/2, z), scale=(25, h, 25), color=color.rgb(70, 80, 90), collider='box'))
+# --- GAME PLAYABLE ENTITIES ---player = FirstPersonController(position=(0, 2, -10), speed=12)
+player.cursor.color, player.cursor.scale = color.red, 0.015
+weapon = Entity(parent=camera, model='cube', color=color.black, scale=(0.15, 0.12, 0.8), position=(0.35, -0.25, 0.6))muzzle_flash = Entity(parent=weapon, model='sphere', color=color.yellow, scale=0.3, position=(0, 0, 0.5), enabled=False)
+# Economy Loop: Floating Cash Pickupscash_pickups = []for _ in range(10):
+    gold_bag = Entity(model='sphere', color=color.gold, position=(random.randint(-80, 80), 1.5, random.randint(-80, 80)), scale=1.5, collider='box')
+    cash_pickups.append(gold_bag)
+# --- ADVANCED VEHICLE MATRIX CLASS ---class CityVehicle(Entity):
+    def __init__(self, name, model_type, body_color, start_pos, scale_dims):
+        super().__init__(model=model_type, color=body_color, position=start_pos, scale=scale_dims, collider='box')
+        self.name = name
+        self.speed = 0.0
+        self.max_speed = 55.0
+        self.accel = 24.0
+        self.steer_speed = 75.0
+        self.health = 100
+        self.is_dead = False
+        self.label = Text(text=f"[{name}] HP: 100\nPress 'E'", parent=self, position=(0, 2.5, 0), scale=3.5, billboard=True, color=color.yellow)
+vehicles = [
+    CityVehicle("Viper GT", "cube", color.red, (15, 1, 0), (3, 1.4, 6)),
+    CityVehicle("Police Cruiser", "cube", color.black, (-15, 1, 0), (3.2, 1.5, 6.2))
+]
+# Add strobe sirens specifically onto the police vehicle modelpolice_siren = Entity(parent=vehicles[1], model='cube', color=color.blue, scale=(0.8, 0.2, 0.3), position=(0, 0.8, 0))
+# --- LAW ENFORCEMENT THREAT CLASS ---class CopEnforcer(Entity):
+    def __init__(self, pos):
+        super().__init__(model='cube', color=color.blue, position=pos, scale=(3, 1.5, 6), collider='box')
+        self.roof_light = Entity(parent=self, model='cube', color=color.red, scale=(0.8, 0.2, 0.3), position=(0, 0.8, 0))
+        self.siren_timer = 0.0
+cops, bullets = [], []current_mode, driving_target, player_hp, cash_balance, wanted_stars = "FPS", None, 100, 650, 0
+# --- USER INTERFACE MODULES ---ui_bg = Entity(parent=camera.ui, model='quad', scale=(0.4, 0.22), position=(-0.65, 0.36), color=color.rgba(0,0,0,180))hud_main = Text(text="", position=(-0.82, 0.44), scale=1.4, color=color.white)hud_alert = Text(text="", position=(-0.82, 0.32), scale=1.4, color=color.red)
+minimap_frame = Entity(parent=camera.ui, model='quad', color=color.rgba(40,40,40,200), scale=(0.2, 0.2), position=(0.73, -0.36))minimap_dot = Entity(parent=minimap_frame, model='circle', color=color.cyan, scale=(0.08, 0.08))
+# --- BALLISTIC BULLET TRAJECTORY ---class Projectile(Entity):
+    def __init__(self, start, direction):
+        super().__init__(model='sphere', color=color.yellow, scale=0.2, position=start, collider='box')
+        self.direction = direction
+        self.age = 0.0
+# --- CORE GAME ENGINE PROCESS LOOPS ---def update():
+    global current_mode, driving_target, player_hp, cash_balance, wanted_stars
+    dt = time.dt
+    if dt > 0.05: dt = 0.05  # Delta lag protector
+    
+    # 1. Flash Muzzle Effects Timer
+    if muzzle_flash.enabled:
+        muzzle_flash.scale -= dt * 2
+        if muzzle_flash.scale.x <= 0:
+            muzzle_flash.enabled = False
+
+    # 2. Economy Money Spinner Animation & Hit Registration
+    for bag in list(cash_pickups):
+        bag.rotation_y += dt * 90
+        check_pos = player.position if current_mode == "FPS" else driving_target.position
+        if (bag.position - check_pos).length() < 3.5:
+            cash_balance += 150
+            cash_pickups.remove(bag)
+            destroy(bag)
+
+    # 3. Ballistic Update & Bullet Impact Mapping
+    for b in list(bullets):
+        b.position += b.direction * dt * 95
+        b.age += dt
+        if b.age > 2.0:
+            bullets.remove(b)
+            destroy(b)
+            continue
+        # Impact scan on buildings
+        for obj in blocks:
+            if (b.position - obj.position).length() < 13:
+                # Leave a permanent dark gray bullet mark on impact
+                Entity(model='sphere', color=color.dark_gray, position=b.position, scale=0.4)
+                if b in bullets: bullets.remove(b)
+                destroy(b)
+                break
+
+    # 4. Mode Logic: Foot Infantry vs Vehicle Simulation
+    if current_mode == "FPS":
+        player.enabled = True
+        camera.position = player.position + Vec3(0, 1.8, 0)
+        camera.rotation = player.rotation
+        minimap_dot.position = Vec2(player.x / 500, player.z / 500)
+        hud_main.text = f"VITAL HP: {int(player_hp)}%\nCASH INF: ${cash_balance}\nMODE: INFANTRY COMBAT"
+    else:
+        player.enabled = False
+        if driving_target:
+            player.position = driving_target.position
+            minimap_dot.position = Vec2(driving_target.x / 500, driving_target.z / 500)
+            
+            # Vehicle Physics Module
+            if held_keys['w'] and not driving_target.is_dead:
+                driving_target.speed = min(driving_target.speed + driving_target.accel * dt, driving_target.max_speed)
+            elif held_keys['s'] and not driving_target.is_dead:
+                driving_target.speed = max(driving_target.speed - driving_target.accel * dt, -driving_target.max_speed / 2)
+            else:
+                if driving_target.speed > 0: driving_target.speed = max(driving_target.speed - driving_target.accel * 0.5 * dt, 0)
+                elif driving_target.speed < 0: driving_target.speed = min(driving_target.speed + driving_target.accel * 0.5 * dt, 0)
+
+            if driving_target.speed != 0:
+                dir_mod = 1 if driving_target.speed > 0 else -1
+                if held_keys['d']: driving_target.rotation_y += driving_target.steer_speed * dt * dir_mod
+                if held_keys['a']: driving_target.rotation_y -= driving_target.steer_speed * dt * dir_mod
+
+            driving_target.position += driving_target.forward * driving_target.speed * dt
+            
+            # Crash damage calculator (Hitting city skyscrapers)
+            for b_block in blocks:
+                if (driving_target.position - b_block.position).length() < 14:
+                    driving_target.speed = -driving_target.speed * 0.4
+                    driving_target.health = max(driving_target.health - 15, 0)
+                    driving_target.label.text = f"[{driving_target.name}]\nHP: {driving_target.health}"
+
+            # Vehicle Fire/Explosion Trigger Sequence
+            if driving_target.health <= 0 and not driving_target.is_dead:
+                driving_target.is_dead = True
+                driving_target.color = color.black
+                wanted_stars = min(wanted_stars + 1, 5)
+                Entity(model='sphere', color=color.orange, position=driving_target.position, scale=5)
+
+            # Smooth dynamic chase rig camera anchor
+            camera.position = driving_target.position - driving_target.forward * 15 + Vec3(0, 5.5, 0)
+            camera.look_at(driving_target.position + driving_target.forward * 2)
+            hud_main.text = f"VEHICLE HP: {driving_target.health}%\nVELOCITY: {int(abs(driving_target.speed))} MPH\n[E] PARK & EXIT"
+
+    # 5. Law Enforcement Sirens & Dispatch Core Thread
+    manage_police_ai(dt)
+
+    # 6. Safety Health Reset Mechanics
+    if player_hp <= 0:
+        hud_main.text = "CRITICAL FAILURE: WASTED"
+        player.speed = 0
+# --- LAW ENFORCEMENT DISPATCH ROUTINE ---def manage_police_ai(dt):
+    global wanted_stars, player_hp, current_mode, driving_target
+    
+    # Pulse police patrol lights
+    if int(time.time() * 8) % 2 == 0:
+        police_siren.color = color.red
+    else:
+        police_siren.color = color.blue
+
+    if wanted_stars > 0 and len(cops) < wanted_stars:
+        cops.append(CopEnforcer(player.position + Vec3(random.choice([-60, 60]), 0, random.choice([-60, 60]))))
+
+    for cop in list(cops):
+        cop.siren_timer += dt * 10
+        cop.roof_light.color = color.red if int(cop.siren_timer) % 2 == 0 else color.blue
+        
+        target = player.position if current_mode == "FPS" else driving_target.position
+        chase_vector = (target - cop.position)
+        cop.look_at(target)
+        
+        if chase_vector.length() > 4.5:
+            cop.position += chase_vector.normalized() * dt * 26
+        else:
+            player_hp = max(player_hp - dt * 10, 0)
+            if current_mode == "DRIVING":
+                driving_target.health = max(driving_target.health - dt * 12, 0)
+
+    hud_alert.text = "WANTED LEVEL: " + ("★" * wanted_stars if wanted_stars > 0 else "CLEAN OPERATIVE")
+# --- MECHANICAL PERIPHERAL INPUT TRIGGERS ---def input(key):
+    global current_mode, driving_target, bullets, wanted_stars
+    
+    # Trigger Bullet Fire Pipeline (Foot Combat)
+
+if key == 'left mouse down' and current_mode == "FPS" and player_hp > 0:
+muzzle_flash.enabled, muzzle_flash.scale = True, 0.3
+bullets.append(Projectile(player.position + Vec3(0, 1.5, 0) + camera.forward * 1.2, camera.forward))
+if random.random() < 0.15:
+wanted_stars = min(wanted_stars + 1, 5)
+# Toggle Driving/Walking State Engine Matrix
+if key == 'e' and player_hp > 0:
+if current_mode == "FPS":
+nearest, min_dist = None, 7.0
+for v in vehicles:
+d = (player.position - v.position).length()
+if d < min_dist:
+min_dist = d
+nearest = v
+if nearest and not nearest.is_dead:
+current_mode = "DRIVING"
+driving_target = nearest
+driving_target.label.enabled = False
+player.visible = False
+else:
+if driving_target:
+current_mode = "FPS"
+player.position = driving_target.position + driving_target.right * 4 + Vec3(0, 1, 0)
+player.visible = True
+driving_target.label.enabled = True
+driving_target.speed = 0
+driving_target = None
+app.run()
+
+
+### 🎮 How to Interact with the Code
+1. **Fire and Leave Marks**: Left-click while running around on foot. Your weapon will fire high-speed projectiles, and when they hit the sides of the grey skyscrapers, they will leave bullet holes.
+2. **Hit the Stunt Park**: Grab the **Viper GT** (the red vehicle) or the **Police Car** by walking up to it and hitting **E**. Head directly toward the center of the map to hit the orange stunt ramps and fly through the air!
+3. **Exploding Physics**: If you ram your car into buildings at full speed, your vehicle's health bar will drop. If it hits `0%`, the car explodes into a giant orange ball and burns to a blackened frame.
+
+What feature should we add to this 250-line code base next? We can integrate an active **rocket launcher weapon** or set up **destructible checkpoints** to earn extra money!
+
+
+window.fps_counter.enabled
 ![Share game](Export.png)
 
 <div class="video-container">
@@ -38,4 +1652,514 @@ These export options will require some manual work on your part and are intended
 
  * **[Web](/gdevelop5/publishing/html5_game_in_a_local_folder):** This option is the same as in the prior category.
  * **[Mobile](/gdevelop5/publishing/android_and_ios_with_cordova):** This option exports your game ready to be used as a Cordova project. You can then use Cordova command line tools to build your game for Android and iOS.
- * **[Desktop](/gdevelop5/publishing/windows-macos-linux-with-electron):** This option exports your game ready to be used as an Electron project. You can then use command line tools to build your game for Windows, macOS, or Linux.
+ * **[Desktop](/gdevelop5/publishing/windows-macos-linux-with-electron):** This option exports your game ready to be used as an Electron project. You can then use command line tools to build your game for Windows, macOS, or Linux.Here is a brand new, enhanced 250-line 3D game engine that is completely rewritten and ready for you to copy directly.
+This version includes on-foot shooting with visible bullet holes on walls, a 3D stunt ramp park, exploding vehicles that blow up when they take too much damage, a cash-collection system where you pick up floating money bags, and an active AI police pursuit team that hunts you down with blue and red strobe sirens.
+## 🛠️ Quick Installation
+Make sure you have Python and the Ursina engine installed before running the code:
+
+pip install ursina
+
+## 💻 Click the "Copy" Button below to get the Full Code
+
+from ursina import *from ursina.prefabs.first_person_controller import FirstPersonControllerimport random
+app = Ursina()
+window.title, window.fps_counter.enabled = "GTA 3D Python Edition", True
+# --- WORLD AND ENVIRONMENT ---ground = Entity(model='plane', scale=(1000, 1, 1000), color=color.dark_gray, texture='noise', texture_scale=(100, 100), collider='mesh')sky_light = DirectionalLight(y=30, rotation=(50, -40, 0))
+# Custom City Grid with a Stunt Ramp Playgroundblocks = []for x in range(-120, 121, 60):
+    for z in range(-120, 121, 60):
+        if x == 0 and z == 0:
+            # Build 3D Stunt Ramps in the central square
+            Entity(model='cube', position=(0, 2, 20), scale=(12, 1, 25), rotation_x=-25, color=color.orange, collider='box')
+            Entity(model='cube', position=(0, 5, 45), scale=(12, 1, 25), rotation_x=-15, color=color.orange, collider='box')
+            continue
+        h = random.randint(20, 75)
+        blocks.append(Entity(model='cube', position=(x, h/2, z), scale=(25, h, 25), color=color.rgb(70, 80, 90), collider='box'))
+# --- GAME PLAYABLE ENTITIES ---player = FirstPersonController(position=(0, 2, -10), speed=12)
+player.cursor.color, player.cursor.scale = color.red, 0.015
+weapon = Entity(parent=camera, model='cube', color=color.black, scale=(0.15, 0.12, 0.8), position=(0.35, -0.25, 0.6))muzzle_flash = Entity(parent=weapon, model='sphere', color=color.yellow, scale=0.3, position=(0, 0, 0.5), enabled=False)
+# Economy Loop: Floating Cash Pickupscash_pickups = []for _ in range(10):
+    gold_bag = Entity(model='sphere', color=color.gold, position=(random.randint(-80, 80), 1.5, random.randint(-80, 80)), scale=1.5, collider='box')
+    cash_pickups.append(gold_bag)
+# --- ADVANCED VEHICLE MATRIX CLASS ---class CityVehicle(Entity):
+    def __init__(self, name, model_type, body_color, start_pos, scale_dims):
+        super().__init__(model=model_type, color=body_color, position=start_pos, scale=scale_dims, collider='box')
+        self.name = name
+        self.speed = 0.0
+        self.max_speed = 55.0
+        self.accel = 24.0
+        self.steer_speed = 75.0
+        self.health = 100
+        self.is_dead = False
+        self.label = Text(text=f"[{name}] HP: 100\nPress 'E'", parent=self, position=(0, 2.5, 0), scale=3.5, billboard=True, color=color.yellow)
+vehicles = [
+    CityVehicle("Viper GT", "cube", color.red, (15, 1, 0), (3, 1.4, 6)),
+    CityVehicle("Police Cruiser", "cube", color.black, (-15, 1, 0), (3.2, 1.5, 6.2))
+]
+# Add strobe sirens specifically onto the police vehicle modelpolice_siren = Entity(parent=vehicles[1], model='cube', color=color.blue, scale=(0.8, 0.2, 0.3), position=(0, 0.8, 0))
+# --- LAW ENFORCEMENT THREAT CLASS ---class CopEnforcer(Entity):
+    def __init__(self, pos):
+        super().__init__(model='cube', color=color.blue, position=pos, scale=(3, 1.5, 6), collider='box')
+        self.roof_light = Entity(parent=self, model='cube', color=color.red, scale=(0.8, 0.2, 0.3), position=(0, 0.8, 0))
+        self.siren_timer = 0.0
+cops, bullets = [], []current_mode, driving_target, player_hp, cash_balance, wanted_stars = "FPS", None, 100, 650, 0
+# --- USER INTERFACE MODULES ---ui_bg = Entity(parent=camera.ui, model='quad', scale=(0.4, 0.22), position=(-0.65, 0.36), color=color.rgba(0,0,0,180))hud_main = Text(text="", position=(-0.82, 0.44), scale=1.4, color=color.white)hud_alert = Text(text="", position=(-0.82, 0.32), scale=1.4, color=color.red)
+minimap_frame = Entity(parent=camera.ui, model='quad', color=color.rgba(40,40,40,200), scale=(0.2, 0.2), position=(0.73, -0.36))minimap_dot = Entity(parent=minimap_frame, model='circle', color=color.cyan, scale=(0.08, 0.08))
+# --- BALLISTIC BULLET TRAJECTORY ---class Projectile(Entity):
+    def __init__(self, start, direction):
+        super().__init__(model='sphere', color=color.yellow, scale=0.2, position=start, collider='box')
+        self.direction = direction
+        self.age = 0.0
+# --- CORE GAME ENGINE PROCESS LOOPS ---def update():
+    global current_mode, driving_target, player_hp, cash_balance, wanted_stars
+    dt = time.dt
+    if dt > 0.05: dt = 0.05  # Delta lag protector
+    
+    # 1. Flash Muzzle Effects Timer
+    if muzzle_flash.enabled:
+        muzzle_flash.scale -= dt * 2
+        if muzzle_flash.scale.x <= 0:
+            muzzle_flash.enabled = False
+
+    # 2. Economy Money Spinner Animation & Hit Registration
+    for bag in list(cash_pickups):
+        bag.rotation_y += dt * 90
+        check_pos = player.position if current_mode == "FPS" else driving_target.position
+        if (bag.position - check_pos).length() < 3.5:
+            cash_balance += 150
+            cash_pickups.remove(bag)
+            destroy(bag)
+
+    # 3. Ballistic Update & Bullet Impact Mapping
+    for b in list(bullets):
+        b.position += b.direction * dt * 95
+        b.age += dt
+        if b.age > 2.0:
+            bullets.remove(b)
+            destroy(b)
+            continue
+        # Impact scan on buildings
+        for obj in blocks:
+            if (b.position - obj.position).length() < 13:
+                # Leave a permanent dark gray bullet mark on impact
+                Entity(model='sphere', color=color.dark_gray, position=b.position, scale=0.4)
+                if b in bullets: bullets.remove(b)
+                destroy(b)
+                break
+
+    # 4. Mode Logic: Foot Infantry vs Vehicle Simulation
+    if current_mode == "FPS":
+        player.enabled = True
+        camera.position = player.position + Vec3(0, 1.8, 0)
+        camera.rotation = player.rotation
+        minimap_dot.position = Vec2(player.x / 500, player.z / 500)
+        hud_main.text = f"VITAL HP: {int(player_hp)}%\nCASH INF: ${cash_balance}\nMODE: INFANTRY COMBAT"
+    else:
+        player.enabled = False
+        if driving_target:
+            player.position = driving_target.position
+            minimap_dot.position = Vec2(driving_target.x / 500, driving_target.z / 500)
+            
+            # Vehicle Physics Module
+            if held_keys['w'] and not driving_target.is_dead:
+                driving_target.speed = min(driving_target.speed + driving_target.accel * dt, driving_target.max_speed)
+            elif held_keys['s'] and not driving_target.is_dead:
+                driving_target.speed = max(driving_target.speed - driving_target.accel * dt, -driving_target.max_speed / 2)
+            else:
+                if driving_target.speed > 0: driving_target.speed = max(driving_target.speed - driving_target.accel * 0.5 * dt, 0)
+                elif driving_target.speed < 0: driving_target.speed = min(driving_target.speed + driving_target.accel * 0.5 * dt, 0)
+
+            if driving_target.speed != 0:
+                dir_mod = 1 if driving_target.speed > 0 else -1
+                if held_keys['d']: driving_target.rotation_y += driving_target.steer_speed * dt * dir_mod
+                if held_keys['a']: driving_target.rotation_y -= driving_target.steer_speed * dt * dir_mod
+
+            driving_target.position += driving_target.forward * driving_target.speed * dt
+            
+            # Crash damage calculator (Hitting city skyscrapers)
+            for b_block in blocks:
+                if (driving_target.position - b_block.position).length() < 14:
+                    driving_target.speed = -driving_target.speed * 0.4
+                    driving_target.health = max(driving_target.health - 15, 0)
+                    driving_target.label.text = f"[{driving_target.name}]\nHP: {driving_target.health}"
+
+            # Vehicle Fire/Explosion Trigger Sequence
+            if driving_target.health <= 0 and not driving_target.is_dead:
+                driving_target.is_dead = True
+                driving_target.color = color.black
+                wanted_stars = min(wanted_stars + 1, 5)
+                Entity(model='sphere', color=color.orange, position=driving_target.position, scale=5)
+
+            # Smooth dynamic chase rig camera anchor
+            camera.position = driving_target.position - driving_target.forward * 15 + Vec3(0, 5.5, 0)
+            camera.look_at(driving_target.position + driving_target.forward * 2)
+            hud_main.text = f"VEHICLE HP: {driving_target.health}%\nVELOCITY: {int(abs(driving_target.speed))} MPH\n[E] PARK & EXIT"
+
+    # 5. Law Enforcement Sirens & Dispatch Core Thread
+    manage_police_ai(dt)
+
+    # 6. Safety Health Reset Mechanics
+    if player_hp <= 0:
+        hud_main.text = "CRITICAL FAILURE: WASTED"
+        player.speed = 0
+# --- LAW ENFORCEMENT DISPATCH ROUTINE ---def manage_police_ai(dt):
+    global wanted_stars, player_hp, current_mode, driving_target
+    
+    # Pulse police patrol lights
+    if int(time.time() * 8) % 2 == 0:
+        police_siren.color = color.red
+    else:
+        police_siren.color = color.blue
+
+    if wanted_stars > 0 and len(cops) < wanted_stars:
+        cops.append(CopEnforcer(player.position + Vec3(random.choice([-60, 60]), 0, random.choice([-60, 60]))))
+
+    for cop in list(cops):
+        cop.siren_timer += dt * 10
+        cop.roof_light.color = color.red if int(cop.siren_timer) % 2 == 0 else color.blue
+        
+        target = player.position if current_mode == "FPS" else driving_target.position
+        chase_vector = (target - cop.position)
+        cop.look_at(target)
+        
+        if chase_vector.length() > 4.5:
+            cop.position += chase_vector.normalized() * dt * 26
+        else:
+            player_hp = max(player_hp - dt * 10, 0)
+            if current_mode == "DRIVING":
+                driving_target.health = max(driving_target.health - dt * 12, 0)
+
+    hud_alert.text = "WANTED LEVEL: " + ("★" * wanted_stars if wanted_stars > 0 else "CLEAN OPERATIVE")
+# --- MECHANICAL PERIPHERAL INPUT TRIGGERS ---def input(key):
+    global current_mode, driving_target, bullets, wanted_stars
+    
+    # Trigger Bullet Fire Pipeline (Foot Combat)
+
+if key == 'left mouse down' and current_mode == "FPS" and player_hp > 0:
+muzzle_flash.enabled, muzzle_flash.scale = True, 0.3
+bullets.append(Projectile(player.position + Vec3(0, 1.5, 0) + camera.forward * 1.2, camera.forward))
+if random.random() < 0.15:
+wanted_stars = min(wanted_stars + 1, 5)
+# Toggle Driving/Walking State Engine Matrix
+if key == 'e' and player_hp > 0:
+if current_mode == "FPS":
+nearest, min_dist = None, 7.0
+for v in vehicles:
+d = (player.position - v.position).length()
+if d < min_dist:
+min_dist = d
+nearest = v
+if nearest and not nearest.is_dead:
+current_mode = "DRIVING"
+driving_target = nearest
+driving_target.label.enabled = False
+player.visible = False
+else:
+if driving_target:
+current_mode = "FPS"
+player.position = driving_target.position + driving_target.right * 4 + Vec3(0, 1, 0)
+player.visible = True
+driving_target.label.enabled = True
+driving_target.speed = 0
+driving_target = None
+app.run()
+
+
+### 🎮 How to Interact with the Code
+1. **Fire and Leave Marks**: Left-click while running around on foot. Your weapon will fire high-speed projectiles, and when they hit the sides of the grey skyscrapers, they will leave bullet holes.
+2. **Hit the Stunt Park**: Grab the **Viper GT** (the red vehicle) or the **Police Car** by walking up to it and hitting **E**. Head directly toward the center of the map to hit the orange stunt ramps and fly through the air!
+3. **Exploding Physics**: If you ram your car into buildings at full speed, your vehicle's health bar will drop. If it hits `0%`, the car explodes into a giant orange ball and burns to a blackened frame.
+
+What feature should we add to this 250-line code base next? We can integrate an active **rocket launcher weapon** or set up **destructible checkpoints** to earn extra money!
+from ursina import *
+from ursina.prefabs.first_person_controller import FirstPersonController
+import random
+import math
+
+app = Ursina()
+
+# --- WINDOW SETTINGS ---
+window.title = "Advanced 3D Open-World Sandbox Engine"
+window.borderless = False
+window.fullscreen = False
+window.exit_button.visible = False
+window.fps_counter.enabled = True
+
+# --- GLOBAL GAME STATE MANAGER ---
+current_mode = "FPS"  # FPS or DRIVING
+player_health = 100
+player_money = 1200
+wanted_stars = 0
+active_vehicle = None
+day_cycle_time = 0.3
+
+# Color palette for structural generation
+THEME = {
+    "ground": color.rgb(35, 40, 45),
+    "road": color.rgb(20, 20, 20),
+    "sidewalk": color.rgb(110, 110, 110),
+    "hud_bg": color.rgba(0, 0, 0, 210),
+    "text_ok": color.rgb(50, 255, 50),
+    "text_warn": color.rgb(255, 50, 50)
+}
+
+# --- WORLD ENVIRONMENT ---
+MAP_SIZE = 500
+
+floor = Entity(
+    model='plane',
+    scale=(MAP_SIZE * 2, 1, MAP_SIZE * 2),
+    color=THEME["ground"],
+    texture='noise',
+    texture_scale=(120, 120),
+    collider='mesh'
+)
+
+sky_sun = DirectionalLight(y=40, rotation=(50, -45, 0))
+sky_sun.look_at(floor)
+
+# --- CITY GRID PROCEDURAL GENERATOR ---
+skyscrapers = []
+road_planes = []
+sidewalk_blocks = []
+
+def build_metropolis():
+    spacing = 90
+    road_w = 18
+    block_w = 50
+    
+    for x in range(-MAP_SIZE + 90, MAP_SIZE - 90, spacing):
+        for z in range(-MAP_SIZE + 90, MAP_SIZE - 90, spacing):
+            # Keep central spawn zone clear
+            if abs(x) < 50 and abs(z) < 50:
+                # Spawn a central stunt playground here
+                Entity(model='cube', position=(0, 2, 25), scale=(14, 1, 30), rotation_x=-25, color=color.orange, collider='box')
+                Entity(model='cube', position=(0, 6, 60), scale=(14, 1, 30), rotation_x=-15, color=color.orange, collider='box')
+                continue
+                
+            # Sidewalk Foundation
+            sw = Entity(
+                model='cube',
+                position=(x, 0.1, z),
+                scale=(block_w + 4, 0.3, block_w + 4),
+                color=THEME["sidewalk"],
+                collider='box'
+            )
+            sidewalk_blocks.append(sw)
+            
+            # Spawn 4 skyscrapers per city block quadrant
+            quadrants = [-14, 14]
+            for qx in quadrants:
+                for qz in quadrants:
+                    height = random.randint(25, 90)
+                    building = Entity(
+                        model='cube',
+                        position=(x + qx, height / 2, z + qz),
+                        scale=(20, height, 20),
+                        color=color.rgb(random.randint(50,95), random.randint(60,105), random.randint(70,115)),
+                        collider='box'
+                    )
+                    skyscrapers.append(building)
+                    
+            # Asphalt Roads (Horizontal)
+            rh = Entity(
+                model='plane',
+                position=(x, 0.02, z + spacing/2),
+                scale=(spacing, 1, road_w),
+                color=THEME["road"],
+                collider='mesh'
+            )
+            road_planes.append(rh)
+            
+            # Asphalt Roads (Vertical)
+            rv = Entity(
+                model='plane',
+                position=(x + spacing/2, 0.02, z),
+                scale=(road_w, 1, spacing),
+                color=THEME["road"],
+                collider='mesh'
+            )
+            road_planes.append(rv)
+
+build_metropolis()
+
+# Outer structural border walls
+Entity(model='cube', position=(0, 50, MAP_SIZE), scale=(MAP_SIZE*2, 100, 6), color=color.black, collider='box')
+Entity(model='cube', position=(0, 50, -MAP_SIZE), scale=(MAP_SIZE*2, 100, 6), color=color.black, collider='box')
+Entity(model='cube', position=(MAP_SIZE, 50, 0), scale=(6, 100, MAP_SIZE*2), color=color.black, collider='box')
+Entity(model='cube', position=(-MAP_SIZE, 50, 0), scale=(6, 100, MAP_SIZE*2), color=color.black, collider='box')
+
+# --- INFANTRY CONTROLLER & WEAPONS ---
+player = FirstPersonController()
+player.position = (0, 2, 0)
+player.cursor.visible = False
+player.cursor.color = color.red
+player.cursor.scale = 0.015
+player.speed = 13
+
+gun_mount = Entity(
+    parent=camera,
+    model='cube',
+    color=color.black,
+    scale=(0.14, 0.12, 0.85),
+    position=(0.38, -0.28, 0.65)
+)
+
+muzzle_flash_fx = Entity(
+    parent=gun_mount,
+    model='sphere',
+    color=color.yellow,
+    scale=0.35,
+    position=(0, 0, 0.5),
+    enabled=False
+)
+
+# --- ECONOMY: SCATTERED CASH OBJECTS ---
+loot_bundles = []
+for _ in range(15):
+    cash_pack = Entity(
+        model='sphere',
+        color=color.gold,
+        position=(random.randint(-150, 150), 1.5, random.randint(-150, 150)),
+        scale=1.6,
+        collider='box'
+    )
+    loot_bundles.append(cash_pack)
+
+# --- OBJECT ORIENTED VEHICLE MODULE SYSTEM ---
+class SandboxVehicle(Entity):
+    def __init__(self, name, model_type, hue, spawn_coords, dimensions, top_spd, acceleration):
+        super().__init__(
+            model=model_type,
+            color=hue,
+            position=spawn_coords,
+            scale=dimensions,
+            collider='box'
+        )
+        self.name = name
+        self.current_speed = 0.0
+        self.max_speed = top_spd
+        self.accel_rate = acceleration
+        self.turn_rate = 72
+        self.health = 100
+        self.destroyed = False
+        
+        # Dual Front Headlights
+        self.headlight_l = SpotLight(parent=self, position=(-1, 0, 2.5), rotation=(0,0,0), color=color.white, intensity=8)
+        self.headlight_r = SpotLight(parent=self, position=(1, 0, 2.5), rotation=(0,0,0), color=color.white, intensity=8)
+        
+        # Overhead Floating Text
+        self.ui_tag = Text(
+            text=f"[{name}]\nPress 'E' to Drive",
+            parent=self,
+            position=(0, 2.6, 0),
+            scale=3.8,
+            billboard=True,
+            color=color.yellow
+        )
+
+class PoliceCruiser(Entity):
+    def __init__(self, spawn_pos):
+        super().__init__(
+            model='cube',
+            color=color.black,
+            scale=(3.2, 1.6, 6.2),
+            position=spawn_pos,
+            collider='box'
+        )
+        self.siren_bar = Entity(parent=self, model='cube', color=color.blue, scale=(0.8, 0.2, 0.3), position=(0, 0.8, 0))
+        self.chase_speed = 30
+        self.strobe_timer = 0.0
+
+class BulletProjectile(Entity):
+    def __init__(self, origin, vector_dir):
+        super().__init__(
+            model='sphere',
+            color=color.yellow,
+            scale=0.22,
+            position=origin,
+            collider='box'
+        )
+        self.vector_dir = vector_dir
+        self.velocity = 105
+        self.elapsed_life = 0.0
+
+# Populate Vehicle Entities Garage
+garage_pool = [
+    SandboxVehicle("Viper GT Nitro", "cube", color.red, (15, 1, 15), (3, 1.4, 6), 65.0, 30.0),
+    SandboxVehicle("Mammoth SUV 4x4", "cube", color.orange, (-20, 1, 20), (3.4, 1.8, 6.5), 45.0, 18.0),
+    SandboxVehicle("Titan Freight Truck", "cube", color.light_gray, (30, 1.6, -30), (3.8, 3.2, 9.5), 32.0, 12.0)
+]
+
+police_force = []
+active_bullets = []
+
+# --- METRIC HUD DASHBOARD INTERFACE ---
+hud_backplane = Entity(parent=camera.ui, model='quad', scale=(0.42, 0.25), position=(-0.65, 0.36), color=THEME["hud_bg"])
+text_health = Text(text="VITAL SIGN: 100% HP", position=(-0.83, 0.45), scale=1.4, color=THEME["text_ok"])
+text_finance = Text(text="NET WALLET: $1200", position=(-0.83, 0.41), scale=1.4, color=color.emerald)
+text_speedometer = Text(text="STATE: ON FOOT", position=(-0.83, 0.37), scale=1.4, color=color.white)
+
+wanted_star_frame = Entity(parent=camera.ui, model='quad', scale=(0.35, 0.07), position=(0.68, 0.45), color=THEME["hud_bg"])
+text_wanted = Text(text="PRIORITY: CLEAN", position=(0.52, 0.46), scale=1.4, color=THEME["text_ok"])
+
+# 2.5D GPS Radar Module
+radar_frame = Entity(parent=camera.ui, model='quad', color=color.rgba(30,30,30,180), scale=(0.22, 0.22), position=(0.74, -0.35))
+radar_blip = Entity(parent=radar_frame, model='circle', color=color.cyan, scale=(0.08, 0.08))
+
+# --- CORE GAME ENGINE MAIN PIPELINE LOOPS ---
+def update():
+    global current_mode, active_vehicle, player_health, player_money, wanted_stars, day_cycle_time
+    
+    dt = time.dt
+    if dt > 0.06: dt = 0.06  # Catch frame latency anomalies
+    
+    # 1. Day / Night Atmosphere Environmental Engine Clock
+    day_cycle_time += dt * 0.002
+    if day_cycle_time > 1.0: day_cycle_time = 0.0
+    lumens = math.sin(day_cycle_time * math.pi * 2) * 0.45 + 0.5
+    window.color = color.rgb(lumens * 35, lumens * 45, lumens * 70)
+    sky_sun.intensity = lumens
+
+    # 2. Diminish Muzzle Flash Scaling Over Frames
+    if muzzle_flash_fx.enabled:
+        muzzle_flash_fx.scale -= dt * 2.5
+        if muzzle_flash_fx.scale.x <= 0:
+            muzzle_flash_fx.enabled = False
+
+    # 3. Micro Economy Loot Spinning & Interaction Solver
+    for cash in list(loot_bundles):
+        cash.rotation_y += dt * 85
+        target_check = player.position if current_mode == "FPS" else active_vehicle.position
+        if (cash.position - target_check).length() < 3.8:
+            player_money += 250
+            loot_bundles.remove(cash)
+            destroy(cash)
+
+    # 4. Weapons Projectile Vector Translation Loop
+    for b in list(active_bullets):
+        b.position += b.vector_dir * b.velocity * dt
+        b.elapsed_life += dt
+        if b.elapsed_life > 2.0:
+            active_bullets.remove(b)
+            destroy(b)
+            continue
+            
+        # Physical Impact Triggers on city skyscrapers
+        for skyscraper in skyscrapers:
+            if (b.position - skyscraper.position).length() < 15.0:
+                # Leave a permanent physical bullet hole mark on the building facade
+                Entity(model='sphere', color=color.dark_gray, position=b.position, scale=0.45)
+                if b in active_bullets: active_bullets.remove(b)
+                destroy(b)
+                break
+
+Use code with caution.# 5. Controller Architecture State Toggling (FPS vs Driving Matrix)if current_mode == "FPS":player.enabled = Truecamera.position = player.position + Vec3(0, 1.8, 0)camera.rotation = player.rotationradar_blip.position = Vec2(player.x / (MAP_SIZE * 2), player.z / (MAP_SIZE * 2))text_speedometer.text = f"VELOCITY: {int(player.speed)} KM/H\n[MODE]: RADAR INFANTRY"else:player.enabled = Falseif active_vehicle:player.position = active_vehicle.positionradar_blip.position = Vec2(active_vehicle.x / (MAP_SIZE * 2), active_vehicle.z / (MAP_SIZE * 2))# Acceleration / Brake Physics Solver Chainsif held_keys['w'] and not active_vehicle.destroyed:active_vehicle.current_speed = min(active_vehicle.current_speed + active_vehicle.accel_rate * dt, active_vehicle.max_speed)elif held_keys['s'] and not active_vehicle.destroyed:active_vehicle.current_speed = max(active_vehicle.current_speed - active_vehicle.accel_rate * dt, -active_vehicle.max_speed / 2)else:# Ground drag absorption frictionif active_vehicle.current_speed > 0: active_vehicle.current_speed = max(active_vehicle.current_speed - (active_vehicle.accel_rate * 0.5) * dt, 0)elif active_vehicle.current_speed < 0: active_vehicle.current_speed = min(active_vehicle.current_speed + (active_vehicle.accel_rate * 0.5) * dt, 0)# Wheel turning trajectory rotation calculusif active_vehicle.current_speed != 0:heading_modifier = 1 if active_vehicle.current_speed > 0 else -1if held_keys['d']: active_vehicle.rotation_y += active_vehicle.turn_rate * dt * heading_modifierif held_keys['a']: active_vehicle.rotation_y -= active_vehicle.turn_rate * dt * heading_modifier# Apply final positional calculations to coordinate systemactive_vehicle.position += active_vehicle.forward * active_vehicle.current_speed * dt# Structural Crash Detection Engine (Hitting buildings)for structural_block in skyscrapers:if (active_vehicle.position - structural_block.position).length() < 14.5:active_vehicle.current_speed = -active_vehicle.current_speed * 0.35  # Bounce physics reflectionactive_vehicle.health = max(active_vehicle.health - 12, 0)active_vehicle.ui_tag.text = f"[{active_vehicle.name}]\nHP: {active_vehicle.health}%"# Critical Engine Blow Out Sequenceif active_vehicle.health <= 0 and not active_vehicle.destroyed:active_vehicle.destroyed = Trueactive_vehicle.color = color.blackwanted_stars = min(wanted_stars + 1, 5)# Spawn a permanent fire impact model anchorEntity(model='sphere', color=color.orange, position=active_vehicle.position, scale=5.5)# Smooth Interpolated Third-Person Dynamic Chase Camera Rigcamera.position = active_vehicle.position - active_vehicle.forward * 16 + Vec3(0, 6.2, 0)camera.look_at(active_vehicle.position + active_vehicle.forward * 2.5)text_speedometer.text = f"SPEED: {int(abs(active_vehicle.current_speed))} MPH\n[GEAR]: {active_vehicle.name.upper()}"# 6. Call Threat Pursuit Algorithmsprocess_police_dispatch(dt)# 7. Refresh Interface Readoutstext_health.text = f"VITAL SIGN: {int(player_health)}% HP"text_finance.text = f"NET BANKING: ${player_money}"if player_health <= 0:text_health.text = "CRITICAL: WASTED"text_health.color = THEME["text_warn"]player.speed = 0if active_vehicle: active_vehicle.current_speed = 0if wanted_stars > 0:text_wanted.text = "WANTED LEVEL: " + ("★" * wanted_stars)text_wanted.color = THEME["text_warn"]else:text_wanted.text = "STATUS: COVERT CLEAN"text_wanted.color = THEME["text_ok"]--- LAW ENFORCEMENT ARTIFICIAL INTELLIGENCE DISPATCH ---def process_police_dispatch(dt):global wanted_stars, player_health, current_mode, active_vehicle# Spawn new enforcers dynamically up to the threshold of wanted starsif wanted_stars > 0 and len(police_force) < wanted_stars:offset_pos = player.position + Vec3(random.choice([-80, 80]), 0, random.choice([-80, 80]))police_force.append(PoliceCruiser(offset_pos))for interceptor in list(police_force):interceptor.strobe_timer += dt * 14interceptor.siren_bar.color = color.red if int(interceptor.strobe_timer) % 2 == 0 else color.bluetarget_node = player.position if current_mode == "FPS" else active_vehicle.positionchase_vector = (target_node - interceptor.position)interceptor.look_at(target_node)if chase_vector.length() > 5.0:interceptor.position += chase_vector.normalized() * interceptor.chase_speed * dtelse:# Inflict active close proximity tactical ramming damageplayer_health = max(player_health - dt * 8.0, 0)if current_mode == "DRIVING":active_vehicle.health = max(active_vehicle.health - dt * 10, 0)active_vehicle.current_speed *= 0.95  # Pit maneuver deceleration script--- PERIPHERAL CONTROL COMMAND REGISTRATION HARDWARE LAYER ---def input(key):global current_mode, active_vehicle, wanted_stars# Fire ballistic trigger (FPS Mode)if key == 'left mouse down' and current_mode == "FPS" and player_health > 0:muzzle_flash_fx.enabled = Truemuzzle_flash_fx.scale = 0.35ballistic_vector = camera.forwardactive_bullets.append(BulletProjectile(player.position + Vec3(0, 1.5, 0) + camera.forward * 1.3, ballistic_vector))if random.random() < 0.12:wanted_stars = min(wanted_stars + 1, 5)# Enter / Exit vehicle framework togglerif key == 'e' and player_health > 0:if current_mode == "FPS":closest_car = Noneinteraction_radius = 7.5for vehicle in garage_pool:distance = (player.position - vehicle.position).length()if distance < interaction_radius:interaction_radius = distanceclosest_car = vehicleif closest_car and not closest_car.destroyed:current_mode = "DRIVING"active_vehicle = closest_caractive_vehicle.ui_tag.enabled = Falseplayer.visible = Falseelse:if active_vehicle:current_mode = "FPS"player.position = active_vehicle.position + active_vehicle.right * 4.5 + Vec3(0, 1, 0)player.visible = Trueactive_vehicle.ui_tag.enabled = Trueactive_vehicle.current_speed = 0active_vehicle = Noneapp.run()
+### 🎮 Gameplay Controls:
+1. **Explore & Drive**: Walk to the vehicle labels using **W, A, S, D**. Hit **E** to sit inside and switch to third-person driving. Ram into the massive central orange stunt ramps to launch into the air!
+2. **Shoot Buildings**: Left-click while walking to fire your gun. Turn around and inspect the grey block walls—you will see **dark bullet holes permanently printed** exactly where your projectiles landed.
+3. **Fight the Police**: If your car explodes from crash damage or you discharge weapons, your Wanted Stars track upward. Black police interceptors will spawn out of adjacent streets flashing strobe light sirens to hunt your coordinates down.
+
+If you want to add more to this script, tell me if you would like a **custom weapons shop menu** to spend your wallet cash, or **destructible traffic cones** placed on the roads!
+Try without personalization GTA game
+good game
+
