/**
* repeat will execute the action repeat + 1 times, for a continues action use kCCRepeatForever
* delay is the amount of time the action will wait before execution
*/
public void schedule(TICK_IMP selector, float interval = 0, uint repeat = CCScheduler.kCCRepeatForever, float delay = 0)
{
NSUtils.Assert(selector != null, "Argument must be non-nil");
NSUtils.Assert(FloatUtils.EB(interval, 0), "Arguemnt must be positive");
_scheduler.schedule(selector, this, interval, repeat, !_isRunning, delay);
}
public static Rect RectIntersection(Rect a, Rect b)
{
float x1 = Math.Max(a.x, b.x);
float x2 = Math.Min(a.x + a.width, b.x + b.width);
float y1 = Math.Max(a.y, b.y);
float y2 = Math.Min(a.y + a.height, b.y + b.height);
if (FloatUtils.EB(x2, x1) &&
FloatUtils.EB(y2, y1))
{
return(new Rect(x1, y1, x2 - x1, y2 - y1));
}
return(new Rect(0, 0, 0, 0));
}
// issue #80. Instead of hooking step:, hook update: since it can be called by any
// container action like CCRepeat, CCSequence, CCEase, etc..
public override void update(float dt)
{
if (FloatUtils.EB(dt, _nextDt))
{
while (FloatUtils.Big(dt, _nextDt) && _total < _times)
{
_innerAction.update(1.0f);
_total++;
_innerAction.stop();
_innerAction.startWithTarget(_target);
_nextDt += _innerAction.duration / _duration;
}
// fix for issue #1288, incorrect end value of repeat
if (FloatUtils.EB(dt, 1.0f) && _total < _times)
{
_total++;
}
// don't set a instantaction back or update it, it has no use because it has no duration
if (!_isActionInstant)
{
if (_total == _times)
{
_innerAction.update(1);
_innerAction.stop();
}
else
{
// issue #390 prevent jerk, use right update
_innerAction.update(dt - (_nextDt - _innerAction.duration / _duration));
}
}
}
else
{
_innerAction.update((dt * _times) % 1.0f);
}
}
/** returns YES if the action has finished */
public override bool isDone()
{
return(FloatUtils.EB(_elapsed, _duration));
}