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Modpack support #14

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23f5797
feat(modpack): added support
Mte90 Jun 10, 2026
6c1442a
feat(modpack): added support
Mte90 Jun 10, 2026
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2 changes: 2 additions & 0 deletions install-minecraft-splitscreen.sh
100755 → 100644
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Original file line number Diff line number Diff line change
Expand Up @@ -80,6 +80,7 @@ readonly MODULE_FILES=(
"lwjgl_management.sh"
"mod_management.sh"
"instance_creation.sh"
"modpack_installer.sh"
"steam_integration.sh"
"desktop_launcher.sh"
"main_workflow.sh"
Expand Down Expand Up @@ -207,6 +208,7 @@ source "$MODULES_DIR/version_management.sh"
source "$MODULES_DIR/lwjgl_management.sh"
source "$MODULES_DIR/mod_management.sh"
source "$MODULES_DIR/instance_creation.sh"
source "$MODULES_DIR/modpack_installer.sh"
source "$MODULES_DIR/steam_integration.sh"
source "$MODULES_DIR/desktop_launcher.sh"
source "$MODULES_DIR/main_workflow.sh"
Expand Down
97 changes: 96 additions & 1 deletion modules/main_workflow.sh
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Expand Up @@ -65,11 +65,51 @@ main() {

download_prism_launcher # Download PolyMC AppImage for splitscreen launcher usage

# =============================================================================
# MODPACK VERSION DETECTION (before MC version picker)
# =============================================================================

# Ask about modpack early so it can set MC_VERSION before version selection
local modpack_selected=false
local modpack_install_id=""
echo ""
print_info "ℹ️ Do you want to install a modpack (e.g. Cobbleverse) on the splitscreen instances?"
print_info " If yes, the modpack's target Minecraft version will be used automatically."
echo ""
local early_modpack_choice
read -r -p "Install modpack? [y/N]: " early_modpack_choice
if [[ "$early_modpack_choice" =~ ^[Yy]$ ]]; then
echo ""
print_info "Choose installation method:"
echo "1) Download from CurseForge (requires numeric ID, e.g. 1210677 for Cobbleverse)"
echo "2) Install from a local ZIP file"
read -r -p "Choose [1/2]: " early_install_method

if [[ "$early_install_method" == "2" ]]; then
modpack_selected=true
# ZIP modpack — can't detect version early, user will handle during install
print_info "ZIP modpack selected — version will be checked during installation."
else
local early_modpack_id=""
print_info "Enter CurseForge modpack ID (default: 1210677 for Cobbleverse)"
read -r -p "Modpack ID [1210677]: " early_modpack_id
if [[ -z "$early_modpack_id" ]]; then
early_modpack_id="1210677"
fi
modpack_install_id="$early_modpack_id"

# Detect modpack version and potentially set MC_VERSION
if detect_modpack_version "$early_modpack_id"; then
modpack_selected=true
fi
fi
fi

# =============================================================================
# VERSION DETECTION AND CONFIGURATION
# =============================================================================

get_minecraft_version # Determine target Minecraft version (user choice or latest)
get_minecraft_version # Determine target Minecraft version (skip if already set by modpack)
detect_java # Automatically detect, install, and configure correct Java version for selected Minecraft version
configure_polymc_defaults # Write launcher defaults so Quick Setup wizard is skipped
get_fabric_version # Get compatible Fabric loader version from API
Expand Down Expand Up @@ -112,6 +152,61 @@ main() {
create_instances # Create 4 splitscreen instances using manual configuration
setup_splitscreen_launcher_script # Install minecraftSplitscreen.sh into launcher directory

# =============================================================================
# MODPACK INSTALLATION PHASE: Install modpack mods + overrides
# =============================================================================

if [[ "$modpack_selected" == true && -n "$modpack_install_id" ]]; then
# Already configured early — install now
echo ""
print_info "Installing modpack (ID: $modpack_install_id) into all instances..."
install_modpack "$modpack_install_id" || print_warning "⚠️ Modpack installation had some issues"

elif [[ "$modpack_selected" == true && -z "$modpack_install_id" ]]; then
# ZIP modpack was selected early — ask for path now
echo ""
read -r -p "Path to modpack ZIP file: " zip_path
if [[ -n "$zip_path" ]]; then
install_modpack_from_zip "$zip_path" || print_warning "⚠️ Modpack installation had some issues"
else
print_warning "No file specified, skipping modpack installation."
fi

else
echo ""
print_info "ℹ️ Do you want to install a modpack (e.g. Cobbleverse) on the splitscreen instances?"
print_info " The modpack will be applied to all 4 players."
echo ""
local install_modpack_choice
read -r -p "Install modpack? [y/N]: " install_modpack_choice
if [[ "$install_modpack_choice" =~ ^[Yy]$ ]]; then
echo ""
print_info "Choose installation method:"
echo "1) Download from CurseForge (requires numeric ID, e.g. 1210677 for Cobbleverse)"
echo "2) Install from a local ZIP file"
read -r -p "Choose [1/2]: " install_method

if [[ "$install_method" == "2" ]]; then
echo ""
read -r -p "Path to modpack ZIP file: " zip_path
if [[ -n "$zip_path" ]]; then
install_modpack_from_zip "$zip_path" || print_warning "⚠️ Modpack installation had some issues"
else
print_warning "No file specified, skipping modpack installation."
fi
else
local modpack_id=""
echo ""
print_info "Enter CurseForge modpack ID (default: 1210677 for Cobbleverse)"
read -r -p "Modpack ID [1210677]: " modpack_id
if [[ -z "$modpack_id" ]]; then
modpack_id="1210677"
fi
install_modpack "$modpack_id" || print_warning "⚠️ Modpack installation had some issues"
fi
fi
fi

# =============================================================================
# SYSTEM INTEGRATION PHASE: Optional platform integration
# =============================================================================
Expand Down
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