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

namespace BF
{
	public class PostEffectRadialBlur : AbsPostEffect
	{
		public Material RadialBlurMaterial { get; private set; }
		public float BlurRadius = 0.02f;
		public Vector2 RadialCenter = new Vector2(0.5f, 0.5f);

        public PostEffectRadialBlur()
        {
			RadialBlurMaterial = BFMain.Instance.RenderMgr.RadialBlurMat;
        }

		public void SetBlurRadius(float blurRadius)
        {
			BlurRadius = blurRadius;
			RefreshBlurRadius();
		}

		public void RefreshBlurRadius()
		{
			RadialBlurMaterial.SetFloat("_BlurRadius", BlurRadius);
		}

		public void SetRadialCenter(Vector2 value)
		{
			RadialCenter = value;
			RefreshRadialCenter();
		}

		public void RefreshRadialCenter()
		{
			RadialBlurMaterial.SetVector("_RadialCenter", RadialCenter);
		}

		public override PostEffectContext OnRenderImage(PostEffectContext context)
		{
			var src = context.src;
			var dest = context.dest;
			RadialBlurMaterial.SetFloat("_BlurRadius", BlurRadius);
            RadialBlurMaterial.SetVector("_RadialCenter", RadialCenter);
			Graphics.Blit(src, dest, RadialBlurMaterial, 0);
			return context;
		}
	}
}