Shader "Sprites/ScrollingNoise"
{
	Properties
	{
		[PerRendererData] _MainTex("Sprite Texture", 2D) = "white" {}
		_Color("Tint", Color) = (1,1,1,1)

		[Header(Scrolling Noise)]
		_NoiseTex("Noise Texture", 2D) = "white" {}
		_SpeedX("Scroll Speed X", Range(-20,20)) = 0.003
		_SpeedY("Scroll Speed Y", Range(-20,20)) = 0.003
		_NoiseIntensity("Noise Intensity", Range(0,1)) = 0.5
	}

		SubShader
		{
			Tags
			{
				"Queue" = "Transparent"
				"IgnoreProjector" = "True"
				"RenderType" = "Transparent"
				"PreviewType" = "Plane"
				"CanUseSpriteAtlas" = "True"
			}
			Cull Off
			Lighting Off
			ZWrite Off
			Blend One OneMinusSrcAlpha

			Pass
			{
				CGPROGRAM
				#pragma vertex vert
				#pragma fragment frag
				#include "UnityCG.cginc"

				struct appdata_t
				{
					float4 vertex   : POSITION;
					float4 color    : COLOR;
					float2 texcoord : TEXCOORD0;
				};

				struct v2f
				{
					float4 vertex   : SV_POSITION;
					fixed4 color : COLOR;
					float2 texcoord : TEXCOORD0;
				};

				sampler2D _MainTex;
				float4 _MainTex_ST;
				fixed4 _Color;

				sampler2D _NoiseTex;
				uniform float4 _NoiseTex_ST;
				float _SpeedX;
				float _SpeedY;
				float _NoiseIntensity;


				v2f vert(appdata_t IN)
				{
					v2f OUT;
					OUT.vertex = UnityObjectToClipPos(IN.vertex);
					OUT.texcoord = TRANSFORM_TEX(IN.texcoord, _MainTex);
					OUT.color = IN.color;
					return OUT;
				}

				fixed4 frag(v2f IN) : SV_Target
				{
					// Sample the base sprite texture
					fixed4 col = tex2D(_MainTex, IN.texcoord) * _Color;

				// Compute scrolling noise coordinates using _Time.x
				float2 noiseUV = TRANSFORM_TEX(IN.texcoord, _NoiseTex) + float2(_Time.x * _SpeedX, _Time.x * _SpeedY);

				fixed4 noise = tex2D(_NoiseTex, noiseUV);

				// Blend the noise effect with the sprite.
				// You can adjust blending; here we use a linear interpolation
				col.rgb = lerp(col.rgb, noise.rgb, _NoiseIntensity);

				return col;
			}
			ENDCG
		}
		}
}