using System.Collections;
using System.Collections.Generic;
using Unity.Burst.CompilerServices;
using UnityEngine;

public class DrawShadowMask : MonoBehaviour
{
    public Texture2D shadowMaskTex;
    public Material mat;
    [Range(0, 1000)]
    public float brushSize;
    public bool isDrawing;
    public Color color;

    // Start is called before the first frame update
    void Start()
    {
        Vector2Int centerPos = new Vector2Int((int)(0.5f * shadowMaskTex.width), (int)(0.5f * shadowMaskTex.height));

        for (int y = -(int)brushSize; y <= (int)brushSize; ++y)
        {
            for (int x = -(int)brushSize; x <= (int)brushSize; ++x)
            {
                Vector2Int rang = new Vector2Int(x, y) + centerPos;
                Debug.Log(rang);

                if (rang.x > 0 && rang.x < shadowMaskTex.width || rang.y > 0 && rang.y < shadowMaskTex.height)
                {
                    shadowMaskTex.SetPixel(rang.x, rang.y, Color.red);
                    
                }
            }
        }
       
        shadowMaskTex.Apply();
        
    }

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