int right;
int left;
int up;
+ int old_up;
int down;
int fire;
int old_fire;
Timer skidding_timer;
Timer safe_timer;
Timer frame_timer;
+ Timer kick_timer;
Physic physic;
public:
void keep_in_bounds();
bool on_ground();
bool under_solid();
+ void grow();
private:
void handle_horizontal_input();