public int PlayAnimation(string pAnimationName, FramedSprite pSprite)
{
if (animations.ContainsKey(pAnimationName))
{
AnimationJob job = new AnimationJob {
Sprite = pSprite,
Tokens = animations[pAnimationName],
State = AnimationState.Running,
CurrentStep = 0,
ElapsedMsInStep = 0
};
animationId++;
if (animationId == int.MaxValue)
{
animationId = 0;
}
jobs.Add(animationId, job);
return(animationId);
}
throw new Exception("Animation '" + pAnimationName + "' does not exist.");
}
public void Update(GameTime pGameTime)
{
List <int> animationsToRemove = new List <int>();
foreach (KeyValuePair <int, AnimationJob> job in jobs)
{
AnimationJob animation = job.Value;
if (animation.State == AnimationState.Running)
{
int elapsedTimeMs = (int)pGameTime.ElapsedGameTime.TotalMilliseconds;
int currentStep = animation.CurrentStep;
int elapsedInStep = animation.ElapsedMsInStep;
do
{
var token = animation.Tokens[currentStep];
if (token.Type == AnimationTokenType.SetFrame)
{
animation.Sprite.SetCurrentFrame(token.Value);
elapsedTimeMs--;
currentStep++;
}
else if (token.Type == AnimationTokenType.Wait)
{
if (token.Value > elapsedInStep + elapsedTimeMs)
{
elapsedInStep += elapsedTimeMs;
elapsedTimeMs = 0;
}
else if (token.Value <= elapsedInStep + elapsedTimeMs)
{
currentStep++;
elapsedTimeMs -= token.Value - elapsedInStep;
elapsedInStep = 0;
}
}
if (currentStep >= animation.Tokens.Length)
{
currentStep = 0;
}
} while (elapsedTimeMs > 0);
animation.CurrentStep = currentStep;
animation.ElapsedMsInStep = elapsedInStep;
}
if (animation.State == AnimationState.Stopped)
{
animationsToRemove.Add(job.Key);
}
}
foreach (int id in animationsToRemove)
{
jobs.Remove(id);
}
}