- if ( YES ) {
- [self setPivot:315.0];
- _effectProgress = 0.0;
- [_window setAlphaValue:0.0];
- [_window orderFront:self];
- _effectTimer = [NSTimer scheduledTimerWithTimeInterval:(1.0 / EFFECT_FPS)
- target:self
- selector:@selector(pivotStep)
- userInfo:nil
- repeats:YES];
- } else {
- [_window orderOut:self];
+ [self pivotFinish];
+ [self setPivot:0.0];
+ [_window setAlphaValue:1.0];
+ [_window orderFront:self];
+ [_window display];
+}
+
+- (void)appearStep
+{
+ float interPivot = 0.0;
+ _effectProgress += (1.0 / (EFFECT_FPS * _effectTime));
+ _effectProgress = (_effectProgress < 1.0 ? _effectProgress : 1.0);
+ interPivot = (( sin((_effectProgress * pi) - (pi / 2)) + 1 ) / 2);
+ [self setPivot:((interPivot * 45) + 315)];
+ [_window setAlphaValue:interPivot];
+
+ if ( _effectProgress >= 1.0 ) {
+ [self pivotFinish];