private void CheckInput()
{
if(MainCamera == null || Target == null)
return;
if(Input.GetKey(KeyCode.D))
{
m_inputState = InputState.Deletion;
}
else if(Status == GameStatus.Editor && Input.GetKey(KeyCode.A))
{
m_inputState = InputState.Addition;
}
else if(Input.GetKey(KeyCode.W))
{
m_inputState = InputState.Mark;
}
else
m_inputState = InputState.None;
if(m_clickable && Input.GetMouseButtonDown(0))
{
//从摄像机发出到点击坐标的射线
Ray ray = MainCamera.ScreenPointToRay(Input.mousePosition);
RaycastHit hitInfo;
if(Physics.Raycast(ray, out hitInfo, 100f, 1<<8))
{
//划出射线，只有在scene视图中才能看到
Debug.DrawLine(ray.origin, hitInfo.point);
ModelCube target = hitInfo.collider.gameObject.GetComponent<ModelCube>();
if(target != null)
{
Vector3 point = target.transform.InverseTransformPoint(hitInfo.point);
switch(m_inputState)
{
case InputState.Mark:
//cube.Mark();
break;
case InputState.Deletion:
Target.DeleteCube(target);
break;
case InputState.Addition:
CubeFaceType face = ClickFace(point);
Target.AddCube(target, face);
break;
}//end switch
}//end null
}//end ray
}//end buttondown
}