模型的移动和旋转

模型移动

float distance = Mathf.Abs(Vector3.Distance(hit.point, transform.position));
this.targetPoint = hit.point;
this.moveTime = distance / MoveSpeed;
this.targetForward = (targetPoint - this.transform.position).normalized;

模型的旋转

可以用unity自带的四元数实现  

Quaternion from = this.transform.rotation;
Quaternion to = Quaternion.FromToRotation(this.targetForward, this.transform.forward);
Quaternion.Slerp(from, to, time);

但这段代码可以用更简单高效的办法实现

float degrees  = Vector3.Angle(this.targetForward, this.transform.forward);
Vector3 cross = Vector3.Cross(this.targetForward, this.transform.forward);
this.rotateSpeed = degrees / RotateTime;

if (cross.y >= 0) //角度正负
{
    this.rotateSpeed *= -1;
}

this.rotateTime = RotateTime;

 最后移动和旋转

void MoveAndRotate()
{
       if (this.rotateTime > 0)
       {
           this.rotateTime -= Time.deltaTime;

           this.transform.Rotate(Vector3.up * Time.deltaTime * rotateSpeed);

           if (this.rotateTime <= 0)
           {
               this.transform.forward = this.targetForward;
           }
       }

       if (this.moveTime > 0)
       {
           this.transform.position +=  this.targetForward * MoveSpeed * Time.deltaTime;

           this.moveTime -= Time.deltaTime;
           if (this.moveTime <= 0)
           {
               this.transform.position = this.targetPoint;
               this.SetState(PlayerState.idle);
           }
       }
}