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#ifndef ENGINE_EVENTSMANAGER_H
#define ENGINE_EVENTSMANAGER_H
class Events;
enum em_listen {
EM_LISTEN_KEY = 1,
EM_LISTEN_CURSOR = 2,
EM_LISTEN_MBUTTON = 4,
EM_LISTEN_WINDOWSIZE = 8,
EM_LISTEN_MSCROLL = 16
};
struct lStorage {
Events **list;
GLFWwindow **win;
int *listen_events;
int max_n;
lStorage(int n) : max_n(n)
{
int i;
list = new Events*[n];
win = new GLFWwindow*[n];
listen_events = new int[n];
for(i = 0; i < n; i++) {
list[i] = 0;
win[i] = 0;
listen_events[i] = 0;
}
}
~lStorage()
{
delete[] list;
delete[] win;
delete[] listen_events;
}
void Add(Events *e, GLFWwindow *w, int listen)
{
int i;
for(i = 0; i < max_n; i++) {
if(list[i] == 0) {
list[i] = e;
win[i] = w;
listen_events[i] = listen;
break;
}
}
// realloc memory:
Events **tmp_list = list;
GLFWwindow **tmp_win = win;
int *tmp_levents = listen_events;
list = new Events*[max_n + 1];
win = new GLFWwindow*[max_n + 1];
listen_events = new int[max_n + 1];
for(i = 0; i < max_n; i++) {
list[i] = tmp_list[i];
win[i] = tmp_win[i];
listen_events[i] = tmp_levents[i];
}
list[max_n] = e;
win[max_n] = w;
tmp_levents[max_n] = listen;
delete[] tmp_list;
delete[] tmp_win;
delete[] tmp_levents;
}
};
class EventsManager {
static struct lStorage listeners;
public:
static void PollEvents();
static void AddListener(Events *e, int listen);
private:
EventsManager() { }
static void key_callback(GLFWwindow *window, int key, int scancode, int action, int mode);
static void cursor_pos_callback(GLFWwindow *window, double xpos, double ypos);
static void mouse_button_callback(GLFWwindow *window, int button, int action, int mode);
static void window_size_callback(GLFWwindow *window, int width, int height);
static void scroll_callback(GLFWwindow* window, double xoffset, double yoffset);
};
#endif /* ENGINE_EVENTSMANAGER_H */
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