/* refill a linear transition with new state information */
public static void ResetLinearTransition(
ref LinearTransRec TransRec,
double Start,
double Destination,
int TicksToReach)
{
double LocalTicksToReach = TicksToReach;
TransRec.RightValue = Destination;
TransRec.InverseDifferential = (Start - Destination) / LocalTicksToReach;
TransRec.Countdown = LocalTicksToReach;
}
/* execute one cycle and return the value */
public static double LinearTransitionUpdate(ref LinearTransRec TransRec)
{
double LocalCountdown = TransRec.Countdown - 1;
double ReturnValue = TransRec.RightValue + TransRec.InverseDifferential * LocalCountdown;
TransRec.Countdown = LocalCountdown;
#if DEBUG
if (Math.Floor(TransRec.Countdown) != TransRec.Countdown)
{
// Countdown not integer
Debug.Assert(false);
throw new InvalidOperationException();
}
#endif
return(ReturnValue);
}