inputs.hh

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#pragma once
#include <GLFW/glfw3.h>
#include <unordered_map>
 
#define GLFW_A_KEYCODE 65
enum Key
{
  A = GLFW_A_KEYCODE, // 65 to keep GLFW compatiblity
  B,
  C,
  D,
  E,
  F,
  G,
  H,
  I,
  J,
  K,
  L,
  M,
  N,
  O,
  P,
  Q,
  R,
  S,
  T,
  U,
  V,
  W,
  X,
  Y,
  Z,
  Length, // 'hack' to keep track of enum length
};
 
class Keyboard
{
private:
  std::unordered_map<Key, bool> state;
  Keyboard(void);
 
public:
  static Keyboard &
  get_instance()
  {
    static Keyboard instance;
    return instance;
  }
  bool get_state(const int key);
  void set_state(const int key, const bool action);
  bool key_in_bounds(int key);
};
 
struct MousePosition
{
  float x;
  float y;
};
 
enum MouseKey
{
  LEFT,
  RIGHT,
};
 
class Mouse
{
private:
  Mouse(void);
  std::unordered_map<MouseKey, bool> state;
  MousePosition last_position;
 
public:
  MousePosition pointer_position;
  float scroll_y;
 
  static Mouse &
  get_instance()
  {
    static Mouse instance;
    return instance;
  }
 
  MousePosition get_last_position();
  MousePosition get_diff_moviment();
  void set_state(const int key, const bool action);
  void update_position(float x, float y);
  void next_frame();
  bool get_state(const MouseKey key);
  bool is_moving();
};