feat: Implement core game scene logic in main.gd and introduce goals_cycle_manager.gd for managing game goals and cycles.

scripts/managers/goals_cycle_manager.gd

@@ -214,9 +214,60 @@ func sync_cycle_end():
 
 func on_goal_completed(player: Node, time_remaining: float):
 	"""Called when a player completes their goal pattern."""
+	
+	# 1. LOCAL OPTIMISTIC UPDATE (for smoothness)
+	if player.is_multiplayer_authority() and not multiplayer.is_server():
+		_handle_local_goal_completion(player, time_remaining)
+		return
+
 	if not multiplayer.is_server():
 		return
 	
+	# SERVER LOGIC continues...
+	_process_goal_completion(player, time_remaining)
+
+func _handle_local_goal_completion(player: Node, time_remaining: float):
+	print("[GoalsCycle] Client: Handling goal completion locally for smoothness.")
+	
+	# Clear playerboard locally
+	player.playerboard.fill(-1)
+	
+	# Generate new goals locally (optimistic)
+	var new_goals = GoalManager.initialize_random_goals(9, 7, 10, 1.0)
+	var int_goals: Array[int] = []
+	for g in new_goals:
+		int_goals.append(g)
+	player.goals = int_goals
+	
+	# Update UI immediately
+	if main_scene and main_scene.ui_manager:
+		main_scene.ui_manager.update_playerboard_ui()
+		
+	# Notify server to sync score and broadcast to others
+	rpc_id(1, "request_server_goal_completion", time_remaining, int_goals)
+	
+	# Visual/Sfx
+	SfxManager.play("complete_mission")
+
+@rpc("any_peer")
+func request_server_goal_completion(time_remaining: float, client_generated_goals: Array):
+	if not multiplayer.is_server(): return
+	
+	var sender_id = multiplayer.get_remote_sender_id()
+	# Bots call it locally, so sender_id might be 1 or 0
+	if sender_id == 0: sender_id = 1
+	
+	var player_node = main_scene.get_node_or_null(str(sender_id))
+	if player_node:
+		# Use provided goals from client to ensure sync
+		var int_goals: Array[int] = []
+		for g in client_generated_goals: int_goals.append(g)
+		
+		# Process completion with provided goals
+		_process_goal_completion(player_node, time_remaining, int_goals)
+
+func _process_goal_completion(player: Node, time_remaining: float, provided_goals: Array = []):
+	"""Internal server-side logic for completion rewards and broadcasting."""
 	# Use name.to_int() for ID because bots share authority 1
 	var peer_id = player.name.to_int()
 	
@@ -242,18 +293,23 @@ func on_goal_completed(player: Node, time_remaining: float):
 	rpc("sync_player_score", peer_id, player_scores[peer_id])
 	rpc("sync_goal_count", peer_id, player_goal_counts[peer_id])
 	
-	# Clear playerboard tiles (they convert to powerup bar reward)
+	# Clear playerboard tiles
 	player.playerboard.fill(-1)
-	# Use main scene's RPC which properly looks up player by ID on each client
 	if main_scene:
 		main_scene.rpc("sync_playerboard", peer_id, player.playerboard)
 	
-	# Regenerate goals for this player
-	regenerate_goals_for_player(player)
+	# Regenerate goals for this player (or use provided ones)
+	if provided_goals.size() > 0:
+		player.goals = provided_goals
+		if main_scene:
+			main_scene.rpc("sync_player_goals", peer_id, provided_goals)
+	else:
+		regenerate_goals_for_player(player)
 	
-	# Randomize 9 tiles around player
+	# Randomize tiles around player
 	_randomize_tiles_around_player(player)
 	
+	# Only play RPC if not already handled locally by that player
 	SfxManager.rpc("play_rpc", "complete_mission")
 	print("[GoalsCycle] Player %d completed goal! +%d points (base: %d, time bonus: %d)" % [peer_id, score_earned, BASE_SCORE, time_bonus])