GridBrushBase

描述

使用网格绘图工具（如绘画、擦除、拾取、选择和填充）在网格上创作数据的基类。

通过继承该类和/或从继承的类创建画笔资源实例，您可以创建自定义画笔，以响应高级网格事件，如绘画、擦除、拾取、选择和填充。

using UnityEngine;

// Paints two Prefabs in checkerboard pattern
[CreateAssetMenu]
public class CheckerboardBrush : GridBrushBase
{
    public GameObject prefabA;
    public GameObject prefabB;

    public override void Paint(GridLayout grid, GameObject brushTarget, Vector3Int position)
    {
        bool evenCell = Mathf.Abs(position.y + position.x) % 2 > 0;
        GameObject toBeInstantiated = evenCell ? prefabA : prefabB;

        if (toBeInstantiated != null)
        {
            GameObject newInstance = Instantiate(toBeInstantiated, grid.CellToWorld(position), Quaternion.identity);
            newInstance.transform.SetParent(brushTarget.transform);
        }
    }
}

公共函数