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      學(xué)習(xí)啦>學(xué)習(xí)電腦>電腦硬件知識>鍵盤鼠標(biāo)>

      unity3d實(shí)現(xiàn)鼠標(biāo)拖拽旋轉(zhuǎn)

      時間: 沈迪豪908 分享

        怎么實(shí)現(xiàn)unity3d 鼠標(biāo)拖拽旋轉(zhuǎn),滾輪縮放的功能呢?下面是學(xué)習(xí)啦小編收集整理關(guān)于unity3d 鼠標(biāo)拖拽旋轉(zhuǎn),滾輪縮放的功能的資料以供大家參考學(xué)習(xí),希望大家喜歡。

        unity3d 鼠標(biāo)拖拽旋轉(zhuǎn),滾輪縮放的功能的詳細(xì)代碼

        var target : Transform;

        var xSpeed = 250.0;

        var ySpeed = 120.0;

        var yMinLimit = -20;

        var yMaxLimit = 80;

        var initDis = 20;

        var minDis = 3.0;

        var maxDis = 50.0;

        var wheelSpeed = 5;

        static var x = 0.0;

        static var y = 0.0;

        static var distance;

        private var position;

        private var rotation;

        function Start () {

        x = 130;

        y = 30;

        transform.rotation = Quaternion.Euler(y, x, 0);;

        transform.position = Quaternion.Euler(y, x, 0) * Vector3(0.0, 0.0, -initDis) + target.position;

        // Make the rigid body not change rotation

        if (rigidbody)

        rigidbody.freezeRotation = true;

        }

        function Update () {

        if (target) {

        distance = Vector3.Distance(target.position,transform.position);

        if(Input.GetMouseButton(1)){

        x += Input.GetAxis("Mouse X") * xSpeed * 0.02;

        y -= Input.GetAxis("Mouse Y") * ySpeed * 0.02;

        y = ClampAngle(y, yMinLimit, yMaxLimit);

        }

        distance-= Input.GetAxis("Mouse ScrollWheel")*wheelSpeed;//獲取鼠標(biāo)中建響應(yīng)

        distance = Mathf.Clamp(distance,minDis,maxDis);//距離取最大值和最小值

        rotation = Quaternion.Euler(y, x, 0);

        position = rotation * Vector3(0.0, 0.0, -distance) + target.position;

        transform.rotation = rotation;

        transform.position = position;

        }

        }

        static function ClampAngle (angle : float, min : float, max : float) {

        if (angle < -360)

        angle += 360;

        if (angle > 360)

        angle -= 360;

        return Mathf.Clamp (angle, min, max);

        }

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