added building mode for cart

Scripts/cart.gd

@@ -0,0 +1,33 @@
+extends Node3D
+
+@onready var beds = preload("res://Scenes/Prefabs/DoubleBeds.tscn")
+
+@export var cartTop: MeshInstance3D
+@export var mainCamera: Camera3D
+
+var build_mode = false
+var previewObject
+var targetPos
+
+func _input(event: InputEvent) -> void:
+	if event.is_action_pressed("hide_top"):
+		cartTop.visible = !cartTop.visible
+	if event.is_action_pressed("enter_build_mode"):
+		build_mode = !build_mode
+		add_preview()
+
+func _process(_delta: float) -> void:
+	if build_mode:
+		targetPos = mainCamera.getGlobalRayTargetObject()
+		mainCamera.debugLabel.text = targetPos.collider.name
+		if targetPos.collider.has_meta("is_building_area"):
+			#if targetPos.collider.is_building_area == true:
+			previewObject.visible = true
+			previewObject.global_position = targetPos.position	
+		else:
+			previewObject.visible = false	
+		
+
+func add_preview():
+	previewObject = beds.instantiate()
+	get_tree().root.get_child(0).add_child(previewObject)