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#include <stdlib.h>
#include <math.h>
#include "eve.h"
static EVEVTrack vtrack;
static EVEPhyAcc vtrack_acc;
void eve_vtrack_init(void) {
eve_phy_acc_init(&vtrack_acc, -EVE_VTRACK_ACC_A);
eve_vtrack_reset();
}
EVEVTrack *eve_vtrack_get(void) {
return &vtrack;
}
void eve_vtrack_set(eve_vtrack_start_t start, eve_vtrack_tick_t tick, eve_vtrack_stop_t stop, void *param) {
vtrack.start = start;
vtrack.tick = tick;
vtrack.stop = stop;
vtrack.param = param;
}
void eve_vtrack_reset(void) {
eve_vtrack_set(eve_vtrack_acc_start, eve_vtrack_acc_tick, NULL, &vtrack_acc);
}
int eve_vtrack_start(EVETouch *touch, uint8_t tag0, uint32_t to) {
if (vtrack.start) {
int start;
start = vtrack.start(touch, vtrack.param);
if (start) eve_timer_set(touch, EVE_TOUCH_ETYPE_TRACK, tag0, to);
return start;
}
return 0;
}
void eve_vtrack_stop(EVETouch *touch) {
eve_timer_clear(touch);
eve_vtrack_reset();
}
int eve_vtrack_acc_start(EVETouch *touch, void *p) {
EVEPhyAcc *param = (EVEPhyAcc *)p;
return eve_phy_acc_start(param, touch->x, touch->y, touch->t, touch->vx, touch->vy);
}
int eve_vtrack_acc_tick(EVETouch *touch, void *p) {
EVEPhyAcc *param = (EVEPhyAcc *)p;
return eve_phy_acc_tick(param, eve_get_tick() - touch->t, &touch->x, &touch->y);
}
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