game > main_menu:
added wheel events
input:
added reset_last_states(); called every update by game_handler
added was_real_mousepress_left(); 'real' left mouseclick (press + release)
game_handler:
call input::reset_last_states() after update
game > main_menu:
only call event on real mousepress
game > main_menu > level_square:
added get_bounds()
game > main_menu > level_squares:
start active level on mouseclick