控件位置信息类

//对齐方式
public enum E_Aligment_Type
{
    Up,
    Down,
    Left,
    Right,
    Center,
    Left_Up,
    Right_Up,
    Left_Down,
    Right_Down,
}
//存储计算数据，不需要继承Mono
public class basePos
{
    //处理控件位置相关内容，完成分辨率自适应相关计算
    //返回给外部用于绘制控件
    private Rect pos = new Rect(0,0,100,100);
    //屏幕九宫格对齐方式
    public E_Aligment_Type screen_Aligment_Type;
    //控件中心对齐方式
    public E_Aligment_Type control_Aligment_Type;
    //偏移位置
    public Vector2 offsetPos;
    //控件宽高
    public float cWidth = 100;
    public float cHeight = 50;
    private Vector2 controlCenterPos;
    //计算控件中心点
    private void CalcControlCenterPos()
    {
        switch (control_Aligment_Type)
        {
            case E_Aligment_Type.Up:
                controlCenterPos.x = -cWidth / 2;
                controlCenterPos.y = 0;
                break;
            case E_Aligment_Type.Down:
                controlCenterPos.x = -cWidth / 2;
                controlCenterPos.y = -cHeight;
                break;
            case E_Aligment_Type.Left:
                controlCenterPos.x = 0;
                controlCenterPos.y = -cHeight/2;
                break;
            case E_Aligment_Type.Right:
                controlCenterPos.x = -cWidth;
                controlCenterPos.y = -cHeight / 2;
                break;
            case E_Aligment_Type.Center:
                controlCenterPos.x = -cWidth/2;
                controlCenterPos.y = -cHeight / 2;
                break;
            case E_Aligment_Type.Left_Up:
                controlCenterPos.x = 0;
                controlCenterPos.y = 0;
                break;
            case E_Aligment_Type.Right_Up:
                controlCenterPos.x = -cWidth;
                controlCenterPos.y = 0;
                break;
            case E_Aligment_Type.Left_Down:
                controlCenterPos.x = 0;
                controlCenterPos.y = -cHeight ;
                break;
            case E_Aligment_Type.Right_Down:
                controlCenterPos.x = -cWidth;
                controlCenterPos.y = -cHeight;
                break;
        }
    }
    //计算最终坐标
    private void CalcPos()
    {
        switch (screen_Aligment_Type)
        {
            case E_Aligment_Type.Up:
                pos.x = Screen.width/2+controlCenterPos.x+offsetPos.x;
                pos.y = 0+controlCenterPos.y+offsetPos.y;
                break;
            case E_Aligment_Type.Down:
                pos.x = Screen.width / 2 + controlCenterPos.x + offsetPos.x;
                pos.y = Screen.height + controlCenterPos.y - offsetPos.y;
                break;
            case E_Aligment_Type.Left:
                pos.x = 0 + controlCenterPos.x + offsetPos.x;
                pos.y = Screen.height/2 + controlCenterPos.y + offsetPos.y;
                break;
            case E_Aligment_Type.Right:
                pos.x = Screen.width + controlCenterPos.x - offsetPos.x;
                pos.y = Screen.height / 2 + controlCenterPos.y + offsetPos.y;
                break;
            case E_Aligment_Type.Center:
                pos.x = Screen.width/2 + controlCenterPos.x + offsetPos.x;
                pos.y = Screen.height / 2 + controlCenterPos.y + offsetPos.y;
                break;
            case E_Aligment_Type.Left_Up:
                pos.x = 0 + controlCenterPos.x + offsetPos.x;
                pos.y = 0+ controlCenterPos.y + offsetPos.y;
                break;
            case E_Aligment_Type.Right_Up:
                pos.x = Screen.width  + controlCenterPos.x - offsetPos.x;
                pos.y = 0 + controlCenterPos.y + offsetPos.y;
                break;
            case E_Aligment_Type.Left_Down:
                pos.x = 0 + controlCenterPos.x + offsetPos.x;
                pos.y = Screen.height  + controlCenterPos.y - offsetPos.y;
                break;
            case E_Aligment_Type.Right_Down:
                pos.x = Screen.width + controlCenterPos.x - offsetPos.x;
                pos.y = Screen.height + controlCenterPos.y - offsetPos.y;
                break;
        }
    }
    //得到最后的坐标
    public Rect Pos
    {
        get 
        {
            //计算控件中心点
            CalcControlCenterPos();
            //计算坐标
            CalcPos();
            //宽高直接赋值，返回给外部绘制控件
            pos.width = cWidth;
            pos.height = cHeight;
            return pos;
        }
    }
}