feat: Implement Stop n Go game mode with phase management, missions, dynamic safe zones, and associated UI and managers.

scripts/managers/player_input_manager.gd

@@ -84,18 +84,29 @@ func handle_unhandled_input(event):
 
 	# --- Keyboard Shortcuts (Event-based) ---
 	if event is InputEventKey and event.pressed and not event.echo:
+		var mode = LobbyManager.get_game_mode()
+		var is_sng = mode == GameMode.Mode.STOP_N_GO
+		
 		match event.keycode:
 			KEY_KP_1, KEY_1, KEY_KP_2, KEY_2, KEY_KP_3, KEY_3, KEY_KP_4, KEY_4:
-				# Unified Mapping for all modes: 1-Speed, 2-Wall, 3-Freeze, 4-Ghost
-				match event.keycode:
-					KEY_KP_1, KEY_1:
-						player.activate_powerup(0) # FASTER_SPEED
-					KEY_KP_2, KEY_2:
-						player.activate_powerup(2) # BLOCK_FLOOR
-					KEY_KP_3, KEY_3:
-						player.activate_powerup(1) # AREA_FREEZE
-					KEY_KP_4, KEY_4:
-						player.activate_powerup(3) # INVISIBLE_MODE
+				if is_sng:
+					# Stop n Go Mapping: 1-Speed, 2-Ghost
+					match event.keycode:
+						KEY_KP_1, KEY_1:
+							player.activate_powerup(0) # FASTER_SPEED
+						KEY_KP_2, KEY_2:
+							player.activate_powerup(3) # INVISIBLE_MODE
+				else:
+					# Unified Mapping for all modes: 1-Speed, 2-Wall, 3-Freeze, 4-Ghost
+					match event.keycode:
+						KEY_KP_1, KEY_1:
+							player.activate_powerup(0) # FASTER_SPEED
+						KEY_KP_2, KEY_2:
+							player.activate_powerup(2) # BLOCK_FLOOR
+						KEY_KP_3, KEY_3:
+							player.activate_powerup(1) # AREA_FREEZE
+						KEY_KP_4, KEY_4:
+							player.activate_powerup(3) # INVISIBLE_MODE
 			# KEY_R:
 			# 	player.auto_put_item()
 			KEY_Q:
@@ -117,7 +128,7 @@ func handle_unhandled_input(event):
 			KEY_G:
 				if not player.is_carrying_tekton and player.powerup_manager:
 					if player.powerup_manager.can_use_special():
-					player.grab_tekton()
+						player.grab_tekton()
 	
 	# Handle spawn point selection if not yet selected