public Timeline( string name, bool startActive, float startTime, float effectTime, E_TimerType timerType, E_RestType restType )
{
Name = name;
Active = startActive;
Time = 0.0f;
StartTime = startTime;
EffectTime = effectTime;
TimerType = timerType;
TimerDirection = ( startActive ? E_TimerDirection.Increase : E_TimerDirection.None );
RestType = restType;
Effects = new List< TimelineEffect >();
}
// SetActive
public void SetActive( bool active )
{
Active = active;
// make sure we're going the correct way
if ( !Active )
{
if ( RestType == E_RestType.Start )
TimerDirection = E_TimerDirection.Decrease;
else
if ( RestType == E_RestType.End )
TimerDirection = E_TimerDirection.Increase;
}
else
{
if ( ( RestType == E_RestType.Start ) && ( TimerType != E_TimerType.Bounce ) )
TimerDirection = E_TimerDirection.Increase;
else
if ( TimerDirection == E_TimerDirection.None )
TimerDirection = E_TimerDirection.Increase;
}
}
// Update
public void Update( float frameTime )
{
if ( !Active && ( TimerDirection != E_TimerDirection.None ) )
{
// check for resting
if ( RestType == E_RestType.None )
return;
if ( ( RestType == E_RestType.Start ) && ( Time == 0.0f ) )
return;
if ( ( RestType == E_RestType.End ) && ( Math.Abs( Time - ( StartTime + EffectTime ) ) < 0.001f ) )
return;
// else we've already set the correct TimeDirection in Active()
}
// update effects
float mult = 0.0f;
switch ( TimerDirection )
{
case E_TimerDirection.Increase: mult = 1.0f; break;
case E_TimerDirection.Decrease: mult = -1.0f; break;
}
Time = MathHelper.Clamp( Time + ( frameTime * mult ), 0.0f, ( StartTime + EffectTime ) );
float time01 = 0.0f;
if ( Time > StartTime )
time01 = ( Time - StartTime ) / EffectTime;
for ( int i = 0; i < Effects.Count; ++i )
Effects[ i ].Update( time01 );
// check for wrap/bounce
if ( Active )
{
if ( Time <= StartTime )
{
if ( ( TimerType == E_TimerType.Bounce ) && ( TimerDirection == E_TimerDirection.Decrease ) )
{
Time = StartTime;
TimerDirection = E_TimerDirection.Increase;
}
}
else
if ( Math.Abs( Time - ( StartTime + EffectTime ) ) < 0.001f )
{
if ( TimerType == E_TimerType.Stop )
Active = false; // finished
else
if ( TimerType == E_TimerType.Wrap )
Time = StartTime;
else
if ( TimerType == E_TimerType.Bounce )
TimerDirection = E_TimerDirection.Decrease;
}
}
}
// Reset
public void Reset( float time, bool active )
{
if ( time != -1.0f )
Time = time;
TimerDirection = E_TimerDirection.Increase; // reset effect
SetActive( active );
}
