using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System;

public class Grid : MonoBehaviour
{

    public float gridWidght;
    public float girdHeight;
    public bool isHinder;
    public Color color;
    public Action OnClick;    
    //當(dāng)網(wǎng)格地圖比較大時(shí)，每幀更新模板顏色比較消耗性能，可以修改為通過事件觸發(fā)
    void Update()
    {
        gameObject.GetComponent<MeshRenderer>().material.color=color;
    }
    //委托綁定模板點(diǎn)擊事件
    private void OnMouseDown()
    {
        OnClick?.Invoke();
    }

}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System;


public class GridMeshCreate : MonoBehaviour
{
    [Serializable]
    public class MeshRange
    {
        public int widght;
        public int height;
    }
    //網(wǎng)格的寬高范圍
    public MeshRange meshRange;
    //生成網(wǎng)格起始點(diǎn)
    public Vector3 startPos;
    //網(wǎng)格生成的父物體
    public Transform parentTran;
    //模板預(yù)制體
    public GameObject gridPre;
    
    private Grid[,] m_grids;
    public Grid[,] MeshGridData
    {
        get
        {
            return m_grids;
        }
    }
    //注冊(cè)模板事件
    public Action<Grid> gridEvent;

    /// <summary>
    /// 基于掛載組件的初始數(shù)據(jù)創(chuàng)建網(wǎng)格
    /// </summary>
    public void CreateMesh()
    {
        if (meshRange.widght == 0 || meshRange.height == 0)
        {
            return;
        }
        ClearMesh();
        m_grids = new Grid[meshRange.widght, meshRange.height];
        for (int i = 0; i < meshRange.widght; i++)
        {
            for (int j = 0; j < meshRange.height; j++)
            {
                CreateGrid(i, j);

            }
        }
    }

    /// <summary>
    /// 重載，基于傳入寬高數(shù)據(jù)來創(chuàng)建網(wǎng)格
    /// </summary>
    /// <param name="height"></param>
    /// <param name="widght"></param>
    public void CreateMesh(int height,int widght)
    {
        if (widght == 0 || height == 0)
        {
            return;
        }
        ClearMesh();
        m_grids = new Grid[widght, height];
        for (int i = 0; i < widght; i++)
        {
            for (int j = 0; j < height; j++)
            {
                CreateGrid(i, j);
            }
        }
    }

    /// <summary>
    /// 根據(jù)位置創(chuàng)建一個(gè)基本的Grid物體
    /// </summary>
    /// <param name="row">x軸坐標(biāo)</param>
    /// <param name="column">y軸坐標(biāo)</param>
    public void CreateGrid(int row,int column)
    {
        GameObject go = GameObject.Instantiate(gridPre, parentTran);
        Grid grid = go.GetComponent<Grid>();

        float posX = startPos.x + grid.gridWidght * row;
        float posZ = startPos.z + grid.girdHeight * column;
        go.transform.position = new Vector3(posX, startPos.y, posZ);
        m_grids[row, column] = grid;
        gridEvent?.Invoke(grid);
    }

    /// <summary>
    /// 刪除網(wǎng)格地圖，并清除緩存數(shù)據(jù)
    /// </summary>
    public void ClearMesh()
    {
        if (m_grids == null || m_grids.Length == 0)
        {
            return;
        }
        foreach (Grid grid in m_grids)
        {
            if (grid.gameObject != null)
            {
                Destroy(grid.gameObject);
            }
        }
        Array.Clear(m_grids, 0, m_grids.Length);
    }
}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class MainRun : MonoBehaviour
{
    //獲取網(wǎng)格創(chuàng)建腳本
    public GridMeshCreate gridMeshCreate;
    //控制網(wǎng)格元素grid是障礙的概率
    [Range(0,1)]
    public float probability;

    private void Update()
    {
        if (Input.GetKeyDown(KeyCode.Space))
        {
            Run();
        }
    }
    private void Run()
    {
        
        gridMeshCreate.gridEvent = GridEvent;
        gridMeshCreate.CreateMesh();
    }

    /// <summary>
    /// 創(chuàng)建grid時(shí)執(zhí)行的方法，通過委托傳入
    /// </summary>
    /// <param name="grid"></param>
    private void GridEvent(Grid grid)
    {
        //概率隨機(jī)決定該元素是否為障礙
        float f = Random.Range(0, 1.0f);
        Debug.Log(f.ToString());
        grid.color = f <= probability ? Color.red : Color.white;
        grid.isHinder = f <= probability;
        //模板元素點(diǎn)擊事件
        grid.OnClick = () => {
            if (!grid.isHinder)
                grid.color = Color.blue;
        };

    }
}