/// <summary>
/// Creates a new Sprite with the specified data.
/// </summary>
public Sprite(Texture2D Texture, SpriteFrameCollection Frames, SpriteAnimationCollection Animations)
{
this._Texture = Texture;
this._Frames = Frames;
this._Animations = Animations;
this._ActiveAnimation = GetDefaultAnimation();
}
/// <summary>
/// Creates a new Sprite from the specified SpriteData instance.
/// </summary>
public Sprite(SpriteData Data)
{
SpriteFrameCollection Frames = new SpriteFrameCollection();
foreach(var FrameData in Data.Frames) {
var SpriteFrame = new SpriteFrame(FrameData.Name, FrameData.Source, this);
Frames.Add(SpriteFrame);
}
SpriteAnimationCollection Animations = new SpriteAnimationCollection();
foreach(var Animation in Data.Animations) {
List<SpriteAnimationFrame> AnimationFrames = new List<SpriteAnimationFrame>();
foreach(var Duration in Animation.FrameDurations) {
var Frame = Frames[Duration.Key];
SpriteAnimationFrame AnimationFrame = new SpriteAnimationFrame(Frame, Duration.Value);
AnimationFrames.Add(AnimationFrame);
}
Animations.Add(new SpriteAnimation(Animation.Name, Animation.IsLooped, Animation.IsDefault, AnimationFrames));
}
this._Texture = Data.Texture;
this._Frames = Frames;
this._Animations = Animations;
this._ActiveAnimation = GetDefaultAnimation();
}
/// <summary>
/// Stops the currently playing animation, returning back to one of the default animations.
/// </summary>
public void StopAnimation()
{
this._ActiveAnimation = GetDefaultAnimation();
}
private float CalculateSpeedModifier(SpriteAnimation Animation, TimeSpan Duration)
{
TimeSpan OriginalTime = TimeSpan.FromTicks(0);
foreach(var Frame in Animation.Frames)
OriginalTime += Frame.Duration;
return (float)OriginalTime.Ticks / (float)Duration.Ticks;
}
/// <summary>
/// Stops the current animation, playing the specified animation instead.
/// </summary>
/// <param name="Name">The name of the animation to play.</param>
/// <param name="Duration">If not zero, indicates how long the animation should take to play. Otherwise, plays using the default duration.</param>
public void PlayAnimation(string Name, TimeSpan? Duration = null)
{
// TODO: Determine what to do if this is the active animation.
// Chances are, that if it's loopable we carry on, and if not we reset the animation.
var Animation = this.Animations[Name];
Animation.Reset();
Animation.SpeedModifier = (Duration == null ? 1 : CalculateSpeedModifier(Animation, Duration.Value));
this._ActiveAnimation = Animation;
}