Release 2.4.4: Candy Survival Knock and backfire fixes

scripts/managers/player_input_manager.gd

@@ -111,7 +111,7 @@ func handle_unhandled_input(event):
 		# 2. Action Buttons (Remappable via InputMap / KEY_Q override for Candy Survival)
 		var is_knock = false
 		if LobbyManager.game_mode == "Candy Survival":
-			is_knock = (event is InputEventKey and event.pressed and not event.echo and event.keycode == KEY_Q) or event.is_action_pressed("action_knock_tekton")
+			is_knock = (event is InputEventKey and event.pressed and not event.echo and (event.keycode == KEY_Q or event.physical_keycode == KEY_Q)) or event.is_action_pressed("action_knock_tekton")
 		else:
 			is_knock = event.is_action_pressed("action_knock_tekton")
 
@@ -120,21 +120,25 @@ func handle_unhandled_input(event):
 				var gm = player.get_node_or_null("/root/Main/CandySurvivalManager")
 				if gm and gm.active:
 					var att_id = player.get("peer_id") if "peer_id" in player else player.name.to_int()
-					if gm.player_knocks.get(att_id, 0) <= 0:
+					if gm.player_knocks.get(att_id, 5) <= 0:
 						NotificationManager.send_message(player, "No Knock charges left!", NotificationManager.MessageType.WARNING)
 						get_viewport().set_input_as_handled()
 						return
 						
-					# Find a target to knock (first adjacent player)
+					# Find a target to knock (adjacent player: cardinal or diagonal distance <= 1)
 					var p_pos = player.current_position
 					var all_players = get_tree().get_nodes_in_group("Players")
 					var target_found = null
+					var min_dist = 999
 					for other in all_players:
-						if other == player: continue
+						if other == player or not is_instance_valid(other): continue
 						var other_pos = other.current_position
-						if abs(p_pos.x - other_pos.x) + abs(p_pos.y - other_pos.y) == 1:
+						var dist = max(abs(p_pos.x - other_pos.x), abs(p_pos.y - other_pos.y))
+						if dist <= 1 and dist < min_dist:
 							target_found = other
-							break
+							min_dist = dist
+							if dist == 1:
+								break
 							
 					if target_found:
 						var tgt_id = target_found.get("peer_id") if "peer_id" in target_found else target_found.name.to_int()