Add carry bomb feature: pick up, hold (timer frozen), drop or throw

[Copilot]

Summary

Implements the Carry Bomb feature from the original Atomic Bomberman.

When the player collects the blue glove powerup (CanGrabBombs), they can now:

1. Pick up a bomb — stand on the bomb and double-press the first action key. The bomb is lifted, its timer is frozen, and it follows the player.
2. Drop the bomb — single-press the first action key while carrying. The bomb is placed at the player's feet and the timer resumes.
3. Throw the bomb — double-press the first action key while carrying. The bomb flies in the current facing direction (same arc as before).

Changes

units/uatomic_common.pas

• Add bmHeld to TBombMoveDir enum
• Add HeldBombIndex: Integer to server-side TPlayer record
• Add IsHeld: Boolean to client-side TBombInfo record
• Bump ProtocollVersion 13 → 14 (stream format changed) and Version 0.13001 → 0.13002

units/uatomic_field.pas

• FielWalkable / GetBombIndex: exclude bmHeld bombs (carried bomb is transparent to movement/kick)
• HandleActionPlayer: early-exit block handles drop (aaFirst) and throw (aaFirstDouble) when player is carrying; pick-up code in aaFirstDouble + CanGrabBombs now sets bmHeld + HeldBombIndex instead of immediately throwing; punch and remote-trigger code exclude bmHeld bombs
• HandleBombs: new bmHeld case undoes the per-frame lifetime increment (same pattern as bmFly) and updates bomb position to follow the carrier (skipped while player is flying); flame-triggered detonation check excludes bmHeld; bomb-removal loop keeps HeldBombIndex consistent for all players
• KillPlayer: releases held bomb (sets to bmNone) before marking player as dying
• AppendGamingData: serialises IsHeld flag per bomb
• GetAiInfo: exposes Held field in TAiBombInfo

server/uatomic_server.pas

• Initialises HeldBombIndex := -1 in the per-round player setup loop

client/ugame.pas

• Reads IsHeld from the game stream
• RenderBombs: skips held bombs
• New RenderHeldBombs: draws held bombs above the player's head at atomic_Layer + epsilon (rendered after all players)

server/uai_types.pas + ai_c/ai_types.h

• Added Held: cBool / bool Held field to the AI bomb info structs

MANUAL.md

• Updated first-action and double-press descriptions to reflect the new carry mechanic

[ChrisWiGit]

@PascalCorpsman für Samstag