fix candy_survival ghost and knock input mapping, hook ghost into player transparency, fix hud layout missing UI nodes

scripts/managers/candy_survival_manager.gd

@@ -193,6 +193,20 @@ func _process(delta: float) -> void:
             if player_ghost_timer[pid] <= 0:
                 player_ghost_active[pid] = false
                 player_ghost_timer[pid] = 0.0
+                rpc("sync_ghost_active", pid, false)
+                
+                # Turn off ghost visual/state
+                var all_players = get_tree().get_nodes_in_group("Players")
+                for player in all_players:
+                    var curr_pid = player.get("peer_id") if "peer_id" in player else player.name.to_int()
+                    if curr_pid == pid:
+                        player.set("is_invisible", false)
+                        if player.has_method("sync_modulate"):
+                            if multiplayer.is_server() and player.has_method("can_rpc") and player.can_rpc():
+                                player.rpc("sync_modulate", Color.WHITE)
+                            else:
+                                player.sync_modulate(Color.WHITE)
+                        break
 
     # Candy stack: points per second per candy
     for pid in player_candies.keys():
@@ -277,7 +291,10 @@ func _restore_time_scale() -> void:
 
 # ── Knock / Ghost ──
 
+@rpc("any_peer", "call_local", "reliable")
 func try_knock(attacker: int, target: int) -> bool:
+    if not multiplayer.is_server():
+        return false
     if player_ghost_active.get(target, false):
         return false
     if player_knocks.get(attacker, 0) <= 0:
@@ -318,6 +335,20 @@ func try_activate_ghost(pid: int) -> bool:
     player_ghost_active[pid] = true
     player_ghost_timer[pid] = GHOST_DURATION
     rpc("sync_ghost_active", pid, true)
+    
+    # Core powerup integration: set is_invisible on the player node
+    var all_players = get_tree().get_nodes_in_group("Players")
+    for player in all_players:
+        var curr_pid = player.get("peer_id") if "peer_id" in player else player.name.to_int()
+        if curr_pid == pid:
+            player.set("is_invisible", true)
+            if player.has_method("sync_modulate"):
+                if multiplayer.is_server() and player.has_method("can_rpc") and player.can_rpc():
+                    player.rpc("sync_modulate", Color(1.0, 1.0, 1.0, 0.4))
+                else:
+                    player.sync_modulate(Color(1.0, 1.0, 1.0, 0.4))
+            break
+            
     return true
 
 func is_ghost_active(pid: int) -> bool:

scripts/managers/player_input_manager.gd

@@ -101,6 +101,26 @@ func handle_unhandled_input(event):
 
 		# 2. Action Buttons (Remappable via InputMap)
 		if event.is_action_pressed("action_knock_tekton"):
+			if LobbyManager.game_mode == "Candy Survival":
+				var gm = player.get_node_or_null("/root/Main/CandySurvivalManager")
+				if gm and gm.is_active:
+					# Find a target to knock (first adjacent player)
+					var p_pos = player.current_position
+					var all_players = get_tree().get_nodes_in_group("Players")
+					for other in all_players:
+						if other == player: continue
+						var other_pos = other.current_position
+						if abs(p_pos.x - other_pos.x) + abs(p_pos.y - other_pos.y) == 1:
+							# Adjacent
+							var att_id = player.get("peer_id") if "peer_id" in player else player.name.to_int()
+							var tgt_id = other.get("peer_id") if "peer_id" in other else other.name.to_int()
+							if multiplayer.is_server():
+								gm.try_knock(att_id, tgt_id)
+							else:
+								gm.rpc_id(1, "try_knock", att_id, tgt_id)
+							get_viewport().set_input_as_handled()
+							return
+							
 			if player.powerup_manager:
 				player.powerup_manager.use_special_effect()
 				if player.get("is_attack_mode") and player.has_method("enter_attack_mode"):
@@ -108,6 +128,17 @@ func handle_unhandled_input(event):
 			get_viewport().set_input_as_handled()
 					
 		elif event.is_action_pressed("action_grab_tekton"):
+			if LobbyManager.game_mode == "Candy Survival":
+				var gm = player.get_node_or_null("/root/Main/CandySurvivalManager")
+				if gm and gm.is_active:
+					var pid = player.get("peer_id") if "peer_id" in player else player.name.to_int()
+					if multiplayer.is_server():
+						gm.try_activate_ghost(pid)
+					else:
+						gm.rpc_id(1, "try_activate_ghost", pid)
+					get_viewport().set_input_as_handled()
+					return
+					
 			if not player.is_carrying_tekton:
 				if player.powerup_manager and player.powerup_manager.has_method("can_use_special"):
 					player.grab_tekton()