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

public class MapEditor : MonoBehaviour
{
    public Tilemap tilemap;//引用的Tilemap，加入脚本后需要将对应tilemap拖进来
    private Dictionary<string, Tile> arrTiles; //地块种类
    private List<string> TilesName;
    string[] TileType;
    //大地图宽高
    public int levelW = 10;
    public int levelH = 10;
    // Start is called before the first frame update
    void Start()
    {
        arrTiles = new Dictionary<string, Tile>();
        TilesName = new List<string>();
        InitTile();
        InitMapTilesInfo();
        InitData();
    }

    // Update is called once per frame
    void Update()
    {
    }

    void InitData()
    {
        for (int i = 0; i < levelH; i++)
        {//根据地面类型TileType初始化tilemap
            for (int j = 0; j < levelW; j++)
            {
                tilemap.SetTile(new Vector3Int(j, i, 0), arrTiles[TileType[i * levelW + j]]);
            }
        }
    }

    void InitMapTilesInfo()
    {
    	//初始化地图信息，即每个单位对应的地面类型
        TileType = new string[levelH * levelW];
        for (int i = 0; i < levelH; i++)
        {
            for (int j = 0; j < levelW; j++)
            {
                TileType[i*levelW+j] = TilesName[Random.Range(0, TilesName.Count)];
            }
        }
    }

    void InitTile()
    {
        //创建3钟类型的地面瓦片
        AddTile("soil", "Image/soil");
        AddTile("brick", "Image/brick");
        AddTile("grass", "Image/grass");
        
    }

    void AddTile(string labelName,string spritePath)
    {
        Tile tile = ScriptableObject.CreateInstance<Tile>();//创建Tile，注意，要使用这种方式
        Sprite tmp = Resources.Load<Sprite>(spritePath);
        tile.sprite = tmp;
        arrTiles.Add(labelName, tile);
        TilesName.Add(labelName);
        
    }
}

Tile[] arrTiles;//生成的Tile数组

arrTiles = new Tile[colorCount];
for(int i=0;i<colorCount;i++){
    arrTiles[i] = ScriptableObject.CreateInstance<Tile>();//创建Tile，注意，要使用这种方式
    arrTiles[i].sprite = baseTile.sprite;
    arrTiles[i].color = new Color(Random.Range(0f, 1f), Random.Range(0f,1f), Random.Range(0f, 1f), 1);
}
for(int i=0;i<levelH;i++){//这里就是设置每个Tile的信息了
    for(int j=0;j<levelW;j++){
        tilemap.SetTile(new Vector3Int(j, i, 0), arrTiles[Random.Range(0, arrTiles.Length)]);
    }
    yield return null;
}

 Vector3 wordPosition  =  Camera.main.ScreenToWorldPoint(mousePosition);

 Vector3Int cellPosition 
 = 
 backMap.
 WorldToCell(
 wordPosition);

 backMap.
 SetTile(
 cellPosition, 
 gameUI.
 GetSelectColor().
 colorData.
 mTile);

//tilemap就是发生碰撞的tilemap对象
void OnCollisionEnter2D(Collision2D collision)
    {
        Vector3 hitPosition = Vector3.zero;
        if (tilemap != null && tilemapGameObject == collision.gameObject)
        {
            foreach (ContactPoint2D hit in collision.contacts)
            {
                hitPosition.x = hit.point.x - 0.01f * hit.normal.x;
                hitPosition.y = hit.point.y - 0.01f * hit.normal.y;
                tilemap.SetTile(tilemap.WorldToCell(hitPosition), null);
            }
        }
    }

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

public class TileTest : MonoBehaviour {
    void Start() {
        Tilemap tilemap = GetComponent<Tilemap>();

        BoundsInt bounds = tilemap.cellBounds;
        TileBase[] allTiles = tilemap.GetTilesBlock(bounds);

        for (int x = 0; x < bounds.size.x; x++) {
            for (int y = 0; y < bounds.size.y; y++) {
                TileBase tile = allTiles[x + y * bounds.size.x];
                if (tile != null) {
                    Debug.Log("x:" + x + " y:" + y + " tile:" + tile.name);
                } else {
                    Debug.Log("x:" + x + " y:" + y + " tile: (null)");
                }
            }
        }
    }
}

 //This line outside the Update 
  TileBase highlightTile = gravelTile;
  
  
  void Update() { 
        
      Vector3 mouseWorldPos = Camera.main.ScreenToWorldPoint(Input.mousePosition);
      Vector3Int tileCoordinate = highlightMap.WorldToCell(mouseWorldPos);
  
      if(tileCoordinate != previousTileCoordinate ){
          highlightMap.SetTile(previousTileCoordinate, null);
          highlightMap.SetTile(tileCoordinate,highlightTile);
          previousTileCoordinate = tileCoordinate;     
      }
  }