【Unity3d】鼠标划过变色

 var mouseOverColor = Color.red;//声明变量为蓝色

 private var originalColor : Color;//声明变量存储本来颜色

 function Start () {

 originalColor = renderer.sharedMaterial.color;//开始时得到物体本来着色

 }

 function OnMouseEnter () {

 renderer.material.color = mouseOverColor;//当鼠标滑过时改变物体颜色为蓝色

 }



 function OnMouseExit () {

 renderer.material.color = originalColor;//当鼠标滑出时恢复物体本来颜色

 }



 function OnMouseDown () {

 var screenSpace = Camera.main.WorldToScreenPoint(transform.position);//三维物体坐标转屏幕坐标

 //将鼠标屏幕坐标转为三维坐标，再算出物体位置与鼠标之间的距离

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

 print("down");

 while (Input.GetMouseButton(0))

 {

 //print("button0");

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

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

 transform.position = curPosition;
 yield;//这个很重要，循环执行

 }

 }