snake_2024/include/Utils.hpp

#pragma once

#include <algorithm>

#include "Engine.h"
#include "Vec.hpp"

namespace utils {

namespace safe {

inline int lx(int x) { return std::max(0, x); }

inline int ly(int y) { return std::max(0, y); }

inline int ux(int x) { return std::min(SCREEN_HEIGHT - 1, x); }

inline int uy(int y) { return std::min(SCREEN_WIDTH - 1, y); }

inline int x(int x) { return safe::ux(safe::lx(x)); }
inline int y(int y) { return safe::uy(safe::ly(y)); }
} // namespace safe

inline uint32_t *screen_at(int x, int y) {
  return &buffer[safe::x(x)][safe::y(y)];
}

template <typename T> inline bool is_valid_pos(Vec<T> pos) {
  return pos.x >= 0 and pos.x < SCREEN_HEIGHT and pos.y >= 0 and
         pos.y < SCREEN_WIDTH;
}

inline Veci get_cursor() { return {.x = get_cursor_y(), .y = get_cursor_x()}; }

inline constexpr Veci get_center() {
  return {.x = SCREEN_HEIGHT / 2, .y = SCREEN_WIDTH / 2};
}

} // namespace utils

//

class GameObject {
public:
  virtual void act(float dt) = 0;
  virtual void draw(Veci offset) = 0;

  virtual ~GameObject() {}
};