// Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.

CCEffect %{
  techniques:
  - passes:
    - vert: vs
      frag: fs
      blendState:
        targets:
        - blend: true
      rasterizerState:
        cullMode: none
      properties:
        texture0: { value: white }
        texture1: { value: white }
        texture2: { value: white }
        texture3: { value: white }
        texture4: { value: white }
        texture5: { value: white }
        texture6: { value: white }
        texture7: { value: white }
        alphaThreshold: { value: 0.5 }
}%


CCProgram vs %{
  precision highp float;

  #include <cc-global>
  #include <cc-local>

  in vec3 a_position;
  in vec4 a_color;
  out lowp vec4 v_color;

  #if USE_TEXTURE
  in vec2 a_uv0;
  out mediump vec3 v_uv0;
  #endif

  void main () {
    vec4 pos = vec4(a_position, 1);

    #if CC_USE_MODEL
    pos = cc_matViewProj * cc_matWorld * pos;
    #else
    pos = cc_matViewProj * pos;
    #endif

    #if USE_TEXTURE
      v_uv0.y = a_uv0.y;
      v_uv0.z = mod(a_uv0.x,10.0);
      v_uv0.x = (a_uv0.x-v_uv0.z)*0.000001;
    #endif

    v_color = a_color;

    gl_Position = pos;
  }
}%


CCProgram fs %{
  precision mediump float;

  #include <alpha-test>
  #include <texture>

  in lowp vec4 v_color;

  #if USE_TEXTURE
    in mediump vec3 v_uv0;
    uniform sampler2D texture0;
    uniform sampler2D texture1;
    uniform sampler2D texture2;
    uniform sampler2D texture3;
    uniform sampler2D texture4;
    uniform sampler2D texture5;
    uniform sampler2D texture6;
    uniform sampler2D texture7;
  #endif

  vec4 Texture(sampler2D texture,vec2 uv, vec4 o){
      CCTexture(texture, uv, o);
      return o;
  }

  void main () {
    vec4 o = vec4(1, 1, 1, 1);

    #if USE_TEXTURE
   
        float index = v_uv0.z;
        if(index<0.5) o = Texture(texture0 , v_uv0.xy , o);
        else if(index<1.5) o = Texture(texture1 , v_uv0.xy , o);
        else if(index<2.5) o = Texture(texture2 , v_uv0.xy , o);
        else if(index<3.5) o = Texture(texture3 , v_uv0.xy , o);
        else if(index<4.5) o = Texture(texture4 , v_uv0.xy , o);
        else if(index<5.5) o = Texture(texture5 , v_uv0.xy , o);
        else if(index<6.5) o = Texture(texture6 , v_uv0.xy , o);
        else  o = Texture(texture7 , v_uv0.xy , o);

    #endif

    o *= v_color;

    ALPHA_TEST(o);

    #if USE_BGRA
      gl_FragColor = o.bgra;
    #else
      gl_FragColor = o.rgba;
    #endif
  }
}%