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menu_animation.c - some cleanups

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twinaphex 2015-02-05 18:27:25 +01:00
parent a55e48e88c
commit 72ac1bd407
1 changed files with 33 additions and 27 deletions
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60
menu/menu_animation.c
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@ -62,39 +62,45 @@ bool add_tween(float duration, float target_value, float* subject,
return true;
}
static int iterate_tween(tween_t *tween, float dt,
unsigned *active_tweens)
{
if (!tween)
return -1;
if (tween->running_since >= tween->duration)
return -1;
tween->running_since += dt;
if (tween->easing)
*tween->subject = tween->easing(
tween->running_since,
tween->initial_value,
tween->target_value - tween->initial_value,
tween->duration);
if (tween->running_since >= tween->duration)
{
*tween->subject = tween->target_value;
if (tween->cb)
tween->cb();
}
if (tween->running_since < tween->duration)
*active_tweens += 1;
return 0;
}
void update_tweens(float dt)
{
unsigned i;
unsigned active_tweens = 0;
tween_t *tween = &driver.menu->tweens[0];
for(i = 0; i < driver.menu->numtweens; i++)
{
tween_t *tween = &driver.menu->tweens[i];
if (!tween)
continue;
if (tween->running_since >= tween->duration)
continue;
tween->running_since += dt;
if (tween->easing)
*tween->subject = tween->easing(
tween->running_since,
tween->initial_value,
tween->target_value - tween->initial_value,
tween->duration);
if (tween->running_since >= tween->duration)
{
*tween->subject = tween->target_value;
if (tween->cb)
tween->cb();
}
if (tween->running_since < tween->duration)
active_tweens += 1;
}
iterate_tween(tween++, dt, &active_tweens);
if (!active_tweens)
driver.menu->numtweens = 0;