Shader "Unlit/ShuiLiZi"
{
    Properties
    {
        _MainColor("MianColor",color) = (1,1,1,1)
        _MainTex ("Texture", 2D) = "white" 
        _MoveSpeed("MoveSpeed",Vector) = (0,0,0,0)
    }
    SubShader
    {
        Tags { "Queue" = "Transparent" "RenderType"="Transparent" }
      
        Blend SrcAlpha OneMinusSrcAlpha
        Pass
        {
            CGPROGRAM
            #pragma vertex vert
            #pragma fragment frag
          

            #include "UnityCG.cginc"

            struct appdata
            {
                float4 vertex : POSITION;
                float4 uv : TEXCOORD0;
                fixed4 color : COLOR;
            };

            struct v2f
            {
                float4 uv : TEXCOORD0;
                fixed4 color : TEXCOORD1;
                float4 vertex : SV_POSITION;
            };

            sampler2D _MainTex;
            float4 _MainTex_ST;
            fixed4 _MainColor;
            float4 _MoveSpeed;
            v2f vert (appdata v)
            {
                v2f o;
                o.vertex = UnityObjectToClipPos(v.vertex);
                o.uv.xy = TRANSFORM_TEX(v.uv, _MainTex);
                o.uv.xy += _Time.y * float2(_MoveSpeed.x, _MoveSpeed.y);
                o.uv.zw = v.uv.zw;
                o.color = v.color;
                return o;
            }

            fixed4 frag (v2f i) : SV_Target
            {
                // sample the texture
                fixed4 col = tex2D(_MainTex, i.uv.xy);
                clip(col.a - i.uv.z);
                col *= _MainColor;
                col *= i.color;
                return col;
            }
            ENDCG
        }
    }
}