#version 430 core
layout (location = 0) in vec3 position;
layout (location = 1) in vec4 color;
out vec4 vColor;

uniform vec2 winSize;
uniform float zoom;
uniform float rotation;
uniform vec2 translation;

vec2 tran(vec2 v)
{
  return (v -  translation);
}
vec2 rot(vec2 v)
{
  return vec2 ( v.x * cos(-rotation) - v.y * sin(-rotation)
              , v.x * sin(-rotation) + v.y * cos(-rotation)
              );
}
vec2 scal(vec2 v)
{
  return vec2 ( 2 * v.x * zoom / winSize.x
              , 2 * v.y * zoom / winSize.y
          );
}

void main()
{
  gl_Position = vec4(scal(rot(tran(position.xy))),position.z,1);
  vColor = color;
}