#version 300 es
layout(location = 0) in vec3 position;
layout(location = 1) in vec3 normal;
layout(location = 2) in vec2 texCoord;
layout(location = 3) in vec3 blinking;
layout(location = 4) in vec3 headLeft;
layout(location = 5) in vec3 blinkingNormals;
layout(location = 6) in vec3 headLeftNormals;
layout(location = 7) in float index;


out vec3 Normal;
out vec3 FragPos;
out vec4 ModelPos;
out vec2 TexCoord;

uniform mat4 model;
uniform mat4 view;
uniform mat4 projection;

const int maxcount = 600;

uniform int indicesAnimation[maxcount];
uniform vec3 positionsAnimation[maxcount];
uniform vec3 normalsAnimation[maxcount];

const int indicesMouth[65] = int[](1086, 1157, 1230, 1373, 2073, 2088, 2090, 2092, 2095, 2106, 2108, 2110, 2113, 2116, 2120, 2130, 2132, 2140, 2144, 2144, 2211, 2216, 2223, 2234, 2271, 2271, 2273, 2276, 2535, 2540, 2547, 2558, 2601, 2606, 3699, 3770, 3843, 3986, 4686, 4699, 4702, 4715, 4718, 4720, 4722, 4722, 4726, 4728, 4732, 4740, 4742, 4752, 4756, 4757, 4824, 4829, 4836, 4847, 4885, 4887, 5148, 5153, 5160, 5171, 5214
);


uniform float amount[3];

uniform bool animationOn;
uniform bool isAvatar;

flat out int mouthVertex;

vec3 pos, norm;

void binSearch()
{
   int low = 0, mid, high = maxcount - 1;

   while(low <= high)
   {
       mid = (low + high) / 2;
       if (int(index) < indicesAnimation[mid])
            high = mid - 1;
       else if (int(index) > indicesAnimation[mid])
            low = mid + 1;
       else
       {
           pos += positionsAnimation[mid] * amount[0] * amount[0];
           norm += normalsAnimation[mid] * amount[0] * amount[0];
           break;
       }
   }
}

void main()
{
    pos = position;
    norm = normal ;

    mouthVertex = 0;

    if(animationOn)
    {
        if(isAvatar)
        {
            pos = pos + blinking * amount[1];// + headLeft*amount[2];
            norm = normal  + blinkingNormals * amount[1];

            for(int i = 1; i < 65; i += 2)
            {
                if(gl_VertexID >= (indicesMouth[i - 1]) && gl_VertexID <= (indicesMouth[i]))
                    mouthVertex = 1;
            }
        }
        binSearch();
    }

    gl_Position = projection * view * model * vec4(pos, 1.0f);
    ModelPos =  vec4(pos, 1.0f);
    FragPos = position;
    Normal = mat3(transpose(inverse(model))) * norm;
    TexCoord = vec2(texCoord.x, 1.0f - texCoord.y);
}