Unity3d鼠标拖拽物体

发布时间:2017-05-06 17:31

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;

}