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#include <stdint.h>
#define EVE_TRACK_TYPE_INERT 1
#define EVE_TRACK_TYPE_OSC 2
#define EVE_TRACK_FRICTION 500
typedef void (*eve_track_init_t) (EVETouchTimer *, EVETouch *);
typedef int (*eve_track_tick_t) (EVETouchTimer *, EVETouch *);
typedef void (*eve_track_stop_t) (EVETouchTimer *, EVETouch *);
typedef struct EVETracker {
eve_track_init_t init;
eve_track_tick_t tick;
eve_track_stop_t stop;
} EVETracker;
typedef struct EVETrackOsc {
int x;
int y;
double f;
double d;
double a;
uint32_t t_max;
} EVETrackOsc;
void eve_init_track(void);
EVETracker *eve_track_get_tracker(void);
void eve_track_set_handler(eve_track_init_t init, eve_track_tick_t tick, eve_track_stop_t stop, void *param);
void eve_track_set(uint8_t type, void *param);
void eve_track_stop(EVETouchTimer *timer, EVETouch *touch);
void eve_track_inert_init(EVETouchTimer *timer, EVETouch *touch);
int eve_track_inert_tick(EVETouchTimer *timer, EVETouch *touch);
int eve_track_osc_tick(EVETouchTimer *timer, EVETouch *touch);
void eve_track_osc_init(EVETrackOsc *p, int x, int y, uint32_t T, double d, uint32_t t_max);
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