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这是一段拖动物体的代码，比较简洁明了，对了解unity3d脚本概念有些帮助！在此加上注释分享！var mouseOverColor = Color.blue;//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
}
} |