Unity3d鼠标拖拽物体

时间：2016-12-01 17:13:11 沈迪豪908由分享

　　爱学习的小伙伴们，可能都有了解过Unity3d ，但是你知道Unity3d 怎么使用鼠标拖拽物体吗?

　　Unity3d使用鼠标拖拽物体的具体代码

　　//Drag object using mouse

　　//editor by faye euler

　　//add script components to the collider Object with need to be draging

　　//將代碼附加到要被拖拽的collider物體上

　　function Update () {

　　}

　　var screenSpace;

　　var offset;

　　function OnMouseDown(){

　　//translate the cubes position from the world to Screen Point

　　//轉換對象位置，從世界點到屏幕座標

　　screenSpace = Camera.main.WorldToScreenPoint(transform.position);

　　//calculate any difference between the cubes world position and the mouses Screen position converted to a worldpoint

　　//在對象世界座標與鼠標屏幕座標計算任何不同，轉換到世界點上

　　offset = transform.position - Camera.main.ScreenToWorldPoint(Vector3(Input.mousePosition.x,Input.mousePosition.y, screenSpace.z));

　　}

　　OnMouseDrag is called when the user has clicked on a GUIElement or Collider and is still holding down the mouse.

　　OnMouseDrag is called every frame while the mouse is down.

　　function OnMouseDrag () {

　　//keep track of the mouse position

　　//保持鼠標位置追蹤

　　var curScreenSpace = Vector3(Input.mousePosition.x, Input.mousePosition.y, screenSpace.z);

　　//convert the screen mouse position to world point and adjust with offset

　　//轉換屏幕鼠標位置到世界點，以及通過偏移調整

　　var curPosition = Camera.main.ScreenToWorldPoint(curScreenSpace) + offset;

　　//update the position of the object in the world

　　//更新物體在世界的位置

　　transform.position = curPosition;

　　}