#pragma once

namespace math {

inline void ortho_proj(float* mat, float left, float right, float bottom, float top,
           float near, float far) {

  mat[0]  = 2.0f / (right - left);
  mat[4]  = 0.0f;
  mat[8]  = 0.0f;
  mat[12] = -(right + left) / (right - left);

  mat[1]  = 0.0f;
  mat[5]  = 2.0f / (top - bottom);
  mat[9]  = 0.0f;
  mat[13] = -(top + bottom) / (top - bottom);

  mat[2]  = 0.0f;
  mat[6]  = 0.0f;
  mat[10] = -2.0f / (far - near);
  mat[14] = -(far + near) / (far - near);

  mat[3]  = 0.0f;
  mat[7]  = 0.0f;
  mat[11] = 0.0f;
  mat[15] = 1.0f;
}

} /* namespace math */