网格系统

1. 建立网格

网格分析：网格宽、高、间隔、网格里面的内容、网格的起点

using TMPro;
using UnityEngine;
/// <summary>
/// 网格类
/// </summary>
public class Grid<TGridObject>
{
    private Vector3 originPos;

    private int width;

    private int height;

    private float cellSize;

    private TGridObject[,] gridArray;

    private TextMeshPro[,] textMeshProArray;

    /// <summary>
    /// 顶点数
    /// </summary>
    private Vector3[] vertices;

    public Grid(int width, int height, float cellSize, Vector3 originPos) { 
        this.width = width;
        this.height = height;
        this.cellSize = cellSize;
        this.originPos = originPos;
        this.gridArray = new TGridObject[width, height];
        textMeshProArray = new TextMeshPro[width, height];
        vertices = new Vector3[(width+1)*(height+1)];

        //for (int x = 0; x < width; x++)
        //{
        //    for(int y = 0; y < height; y++)
        //    {
        //        textMeshProArray[x,y] = DYCreateUtils.CreateWroldTextPro(gridArray[x,y].ToString(), "WorldGrid", null, GetWorldPos(x+0.5f,y+0.5f));
        //        Debug.DrawLine(GetWorldPos(x, y), GetWorldPos(x+1, y), Color.white, 100f);
        //        Debug.DrawLine(GetWorldPos(x, y), GetWorldPos(x, y+1), Color.white, 100f);
        //    }
        //}
        //Debug.DrawLine(GetWorldPos(width, 0), GetWorldPos(width, height), Color.white, 100f);
        //Debug.DrawLine(GetWorldPos(0, height), GetWorldPos(width, height), Color.white, 100f);
       
    }

    public Vector3[] GetVertices()
    {
        return vertices;
    }

    public void SetVertices(int index, Vector3 worldPos)
    {
        if (index < 0 || index >= vertices.Length) return;
        vertices[index] = worldPos;
    }


    private void SetValue(int x, int y, TGridObject value)
    {
        if(x < 0 || y < 0 && x>width || y >height)
        {
            return;
        }
        gridArray[x, y] = value;
        textMeshProArray[x, y].text = value.ToString();
    }

    /// <summary>
    /// 点击网格小方块内，修改对应方块的内容
    /// </summary>
    /// <param name="mouseWorldPos">对应的世界坐标</param>
    /// <param name="value">修改的内容</param>
    public void SetValue(Vector3 mouseWorldPos, TGridObject value)
    {
        int x = Mathf.FloorToInt((mouseWorldPos.x - originPos.x) / cellSize);
        int y = Mathf.FloorToInt((mouseWorldPos.y - originPos.y) / cellSize);
        SetValue(x, y, value);
    }

    /// <summary>
    /// 根据数组位置修改对应的值
    /// </summary>
    /// <param name="x"></param>
    /// <param name="y"></param>
    /// <param name="value"></param>
    public void SetValueForXY(int x, int y, TGridObject value)
    {
        if (x < 0 || y < 0 && x > width || y > height)
        {
            return;
        }
        gridArray[x, y] = value;
        textMeshProArray[x, y].text = value.ToString();
    }

    /// <summary>
    /// 通过x,y获得对应grid的值
    /// </summary>
    /// <param name="x"></param>
    /// <param name="y"></param>
    public TGridObject GetValueForXY(int x, int y)
    {
        if (x < 0 || y < 0 && x > width || y > height)
        {
            return default(TGridObject);
        }
        return gridArray[x, y];
    }

    public Vector3 GetWorldPos(float x, float y)
    {
        return new Vector3(x, y) * cellSize + originPos; 
    } 
}