FireDrillSystem_GuiGang_WDGC/Assets/Scripts/Common/OperationalPreparation/PublicToolMessage.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using AX.MessageSystem;
using System;
using AX.InputSystem;

public class PublicToolMessage : MonoBehaviour {

    public Vector3 objWorldPos;

    //作战部署顶视图UI
    private Transform FireDeployRawImage;
    //作战部署顶视图相机
    private Camera FireDeployCamera;
    //UIRoot
    private Canvas canvas;

    private Vector3 mousePosOnUI;

    private float orthographicSize;

    // Use this for initialization
    void Start () {
        FireDeployCamera = GameObject.Find("FireDeployCamera").GetComponent<Camera>();
        FireDeployRawImage = GameObject.Find("OperationalPreparations/MainWindow/RawImage").transform;
        canvas = GameObject.Find("Canvas").GetComponent<Canvas>();
        orthographicSize = FireDeployCamera.orthographicSize;

        MessageDispatcher.AddListener("UPDATE_ARROWORWATERSUPPLY_UIWITH", UpdateArrowOrWaterSupplyUIWith);
    }

    private void OnDestroy()
    {
        MessageDispatcher.RemoveListener("UPDATE_ARROWORWATERSUPPLY_UIWITH", UpdateArrowOrWaterSupplyUIWith);
    }

    private void UpdateArrowOrWaterSupplyUIWith(IMessage obj)
    {
        //Debug.Log("********");
        if (transform.GetComponent<BaseGameObjInfo>().gameObjType == CloneObjType.Arrow)
        {
            var data = (CameraCmdArgs)obj.Data;

            orthographicSize -= data.mouseScroll * FireDeployCamera.gameObject.GetComponent<FireDeployCameraManager>().mSpeed;
            orthographicSize = Mathf.Clamp(orthographicSize,
                FireDeployCamera.gameObject.GetComponent<FireDeployCameraManager>().minDistance,
                FireDeployCamera.gameObject.GetComponent<FireDeployCameraManager>().maxDistance);
            if (data.mouseScroll == 0 && data.distance != 0)
            {
                orthographicSize = data.distance;
            }

            //Debug.Log(FireDeployCamera.orthographicSize + " / " + orthographicSize + " = " + FireDeployCamera.orthographicSize / orthographicSize);
            var factor = FireDeployCamera.orthographicSize / orthographicSize;

            transform.GetComponent<RectTransform>().sizeDelta =
                new Vector2(transform.GetComponent<RectTransform>().sizeDelta.x * factor,
                transform.GetComponent<RectTransform>().sizeDelta.y);

            transform.transform.Find("Background").GetComponent<RectTransform>().sizeDelta =
                new Vector2(transform.transform.Find("Background").GetComponent<RectTransform>().sizeDelta.x * factor,
                transform.transform.Find("Background").GetComponent<RectTransform>().sizeDelta.y);

            transform.transform.Find("Background/Checkmark").GetComponent<RectTransform>().sizeDelta =
                new Vector2(transform.transform.Find("Background/Checkmark").GetComponent<RectTransform>().sizeDelta.x * factor,
                transform.transform.Find("Background/Checkmark").GetComponent<RectTransform>().sizeDelta.y);
        }
    }

    // Update is called once per frame
    void Update () {
        //视口大小高与视口渲染的顶视图UI高的比例
        var factor_y = (FireDeployCamera.orthographicSize * 2) /
            FireDeployRawImage.GetComponent<RectTransform>().sizeDelta.y;
        //视口大小长与视口渲染的顶视图UI长的比例
        var factor_x = (FireDeployCamera.orthographicSize * 2) * FireDeployCamera.aspect /
            FireDeployRawImage.GetComponent<RectTransform>().sizeDelta.x;

        if (!InputManager.isDargUI)//TODO:判断UI是否拖动
        {
            Vector3 localOffset = FireDeployCamera.transform.InverseTransformPoint(objWorldPos);
            Vector3 offset = new Vector3(localOffset.x / factor_x, localOffset.y / factor_y, 0);
            mousePosOnUI = offset;

            transform.GetComponent<RectTransform>().localPosition = mousePosOnUI;
        }
        else
        {
            mousePosOnUI = transform.GetComponent<RectTransform>().localPosition;

            Vector2 offset = mousePosOnUI;

            //顶视图相机的局部坐标系中相对于其中心点的偏移量
            Vector3 localOffset = new Vector3(offset.x * factor_x, offset.y * factor_y, 0);
            //鼠标点击在作战部署顶视图上的点映射到世界坐标系中的点
            objWorldPos = FireDeployCamera.transform.TransformPoint(localOffset);
        }

        if (transform.GetComponent<BaseGameObjInfo>().gameObjType == CloneObjType.Arrow)
        {//处理公用工具箭头跟随顶视图相机视野缩放而缩放

            var factor = orthographicSize / FireDeployCamera.orthographicSize;

            transform.GetComponent<RectTransform>().sizeDelta =
                new Vector2(transform.GetComponent<RectTransform>().sizeDelta.x * factor,
                transform.GetComponent<RectTransform>().sizeDelta.y);

            transform.transform.Find("Background").GetComponent<RectTransform>().sizeDelta =
                new Vector2(transform.transform.Find("Background").GetComponent<RectTransform>().sizeDelta.x * factor,
                transform.transform.Find("Background").GetComponent<RectTransform>().sizeDelta.y);

            transform.transform.Find("Background/Checkmark").GetComponent<RectTransform>().sizeDelta =
                new Vector2(transform.transform.Find("Background/Checkmark").GetComponent<RectTransform>().sizeDelta.x * factor,
                transform.transform.Find("Background/Checkmark").GetComponent<RectTransform>().sizeDelta.y);

            orthographicSize = FireDeployCamera.orthographicSize;
        }
    }
}