#version 450 core
layout(points) in;
layout(invocations = 20) in;
layout(triangle_strip, max_vertices = 8) out;
layout(std140, binding = 0) uniform TheMat { mat4 theMat; };
layout(std140, binding = 1) uniform LightsBlock {
  vec4 posBool[20];
  vec4 colRad[20];
};
vec3 lightPos = posBool[gl_InvocationID].xyz;
float theBool = posBool[gl_InvocationID].w;
vec4 shift(vec4 p) { return vec4(p.xy + (200 * (p.xy - lightPos.xy)), 0, 1); }
float isLHS(vec2 startV, vec2 testV) {
  return sign(-startV.x * testV.y + startV.y * testV.x);
}
// Preprocessed to include ../functions.glsl
float closestPointOnLineParam (vec2 a, vec2 b, vec2 p) {
  return dot(p - a,b-a) / dot(b-a,b-a);
}
vec2 closestPointOnSeg (vec2 a,vec2 b, vec2 p) {
  float x = closestPointOnLineParam(a,b,p);
  if (x < 0) {
      return a;
  } else{ if (x > 1) { return b; }
      { return a + (x * (b- a));}
  }
}
// End include 2023-03-13 15:33:44.454374887 UTC
// construct a box with openings on bottom face and face away from wall
void main() {
  vec4 p1 = vec4(gl_in[0].gl_Position.xy, 0, 1);
  vec4 p2 = vec4(gl_in[0].gl_Position.zw, 0, 1);
  if (theBool == 1 && isLHS(p1.xy - lightPos.xy, p2.xy - lightPos.xy) < 0) {
    vec4 p3 = vec4(p1.xy, 100, 1);
    vec4 p4 = vec4(p2.xy, 100, 1);
    vec4 p5 = shift(p1);
    vec4 p6 = shift(p2);
    vec4 p7 = vec4(p6.xy, 100, 1);
    vec4 p8 = vec4(p5.xy, 100, 1);

    vec4 a1 = theMat * p1;
    vec4 a2 = theMat * p2;
    vec4 a3 = theMat * p3;
    vec4 a4 = theMat * p4;
    vec4 a5 = theMat * p5;
    vec4 a6 = theMat * p6;
    vec4 a7 = theMat * p7;
    vec4 a8 = theMat * p8;

    gl_Position = a1;
    gl_Layer = gl_InvocationID;
    EmitVertex();
    gl_Position = a5;
    gl_Layer = gl_InvocationID;
    EmitVertex();
    gl_Position = a3;
    gl_Layer = gl_InvocationID;
    EmitVertex();
    gl_Position = a8;
    gl_Layer = gl_InvocationID;
    EmitVertex();
    gl_Position = a4;
    gl_Layer = gl_InvocationID;
    EmitVertex();
    gl_Position = a7;
    gl_Layer = gl_InvocationID;
    EmitVertex();
    gl_Position = a2;
    gl_Layer = gl_InvocationID;
    EmitVertex();
    gl_Position = a6;
    gl_Layer = gl_InvocationID;
    EmitVertex();

    EndPrimitive();
  } else {
  }
}