Shader "Infinity Code/Online Maps/Tileset Fade Shader"
{
	Properties
	{
		_Color("Main Color", Color) = (1,1,1,1)
		_MainTex("Base (RGB) Trans (A)", 2D) = "white" {}
		_OverlayBackTex("Overlay Back Texture", 2D) = "black" {}
		_OverlayBackAlpha("Overlay Back Alpha", Range(0, 1)) = 1
		_TrafficTex("Traffic Texture", 2D) = "black" {}
		_OverlayFrontTex("Overlay Front Texture", 2D) = "black" {}
		_OverlayFrontAlpha("Overlay Front Alpha", Range(0, 1)) = 1
	}

		SubShader
	{
		Tags{ "Queue" = "Transparent-100" "IgnoreProjector" = "True" "RenderType" = "Transparent" }
		LOD 200

		CGPROGRAM
#pragma surface surf Lambert alpha

		sampler2D _MainTex;

        fixed4 _CircleColor;
        float _CircleBorderWidth;
        fixed4 _CircleBorderColor;

        uniform int _CountItems;
        uniform float4 _Items[1000];

		struct Input
		{
			float2 uv_MainTex;
			float3 worldPos;
		};

		void surf(Input IN, inout SurfaceOutput o)
		{
			fixed4 c = tex2D(_MainTex, IN.uv_MainTex);
		    fixed3 rgb = c.rgb;

            const float2 wp = float2(IN.worldPos.x, IN.worldPos.z);

		    [loop]
		    for (int i = _CountItems - 1; i >= 0; i--)
            {
                float4 item = _Items[i];
                const float r = distance(wp, float2(item.x, item.z));
                if (r < item.w - _CircleBorderWidth)
                {
                    rgb = lerp(rgb, _CircleColor.rgb, _CircleColor.a);
                    break;
                }
		        else if (r < item.w)
                {
                    rgb = lerp(rgb, _CircleBorderColor.rgb, _CircleBorderColor.a);
		            break;
                }
            }
		    
            o.Albedo = rgb;
            o.Alpha = c.a;
		}
		ENDCG
	}

		Fallback "Transparent/Cutout/Diffuse"
}