cpp-game-engine/math/include/game/math/common.hpp

//
//  common.hpp
//  math
//
//  Created by Sam Jaffe on 8/20/16.
//

#pragma once

#include "game/math/math_fwd.hpp"

namespace math {
vec2 rotate(vec2 const & point, radian r);
vec2 rotate(vec2 const & center, vec2 const & point, radian r);
dim2::quad rotate(vec2 const & center, dim2::quad const & q, radian r);

bool contains(dim2::line const & shape, dim2::point const & pt);
bool contains(dim2::circle const & shape, dim2::point const & pt);
bool contains(dim2::quad const & shape, dim2::point const & pt);

bool intersects(dim2::line const & lhs, dim2::line const & rhs);
bool intersects(dim2::line const & lhs, dim2::circle const & rhs);
bool intersects(dim2::line const & lhs, dim2::quad const & rhs);
bool intersects(dim2::quad const & lhs, dim2::line const & rhs);
bool intersects(dim2::quad const & lhs, dim2::circle const & rhs);
bool intersects(dim2::quad const & lhs, dim2::quad const & rhs);
bool intersects(dim2::circle const & lhs, dim2::line const & rhs);
bool intersects(dim2::circle const & lhs, dim2::quad const & rhs);
bool intersects(dim2::circle const & lhs, dim2::circle const & rhs);
}

namespace math {
inline bool intersects(dim2::quad const & lhs, dim2::line const & rhs) {
  return intersects(rhs, lhs);
}
inline bool intersects(dim2::circle const & lhs, dim2::line const & rhs) {
  return intersects(rhs, lhs);
}
inline bool intersects(dim2::circle const & lhs, dim2::quad const & rhs) {
  return intersects(rhs, lhs);
}
}