拖动物体的代码 - 纳金网

var mouseOverColor = Color.blue;
private var originalColor : Color;
function Start () {
originalColor = renderer.sharedMaterial.color;
}
function OnMouseEnter () {
renderer.material.color = mouseOverColor;
}
function OnMouseExit () {
renderer.material.color = originalColor;
}
function OnMouseDown () {
var screenSpace = Camera.main.WorldToScreenPoint(transform.position);
var offset = transform.position - Camera.main.ScreenToWorldPoint(Vector3(Input.mousePosition.x, Input.mousePosition.y, screenSpace.z));
while (Input.GetMouseButton(0))
{
var curScreenSpace = Vector3(Input.mousePosition.x, Input.mousePosition.y, screenSpace.z);
var curPosition = Camera.main.ScreenToWorldPoint(curScreenSpace) + offset;
transform.position = curPosition;
yield;
}
}

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