public override Rectangle popRect()
{
//if the current stream has reached its final frame, we need to get the next animation in the group or loop the group itself.
if (currentStream.streamComplete)
{
//if there is still another animation left, go get it.
if (currentStreamIndex < streams.Length - 1)
{
//by resetting the current stream, when we loop back to it (if this object does loop that is), it will play from frame 1.
//if we do not reset it, it would already be fully animated next time we attempt to play it
currentStream.resetStream();
//incremenet currentStream index and get the next animation in the group.
currentStream = streams[++currentStreamIndex];
}
//this check on does loop may not be needed if we fix the frame increment isdues listed below. For we, we have to handle looping if it exists.
else if(doesLoop)
{
resetStream();
}
}
//TODO: because of objects like DelayedSpriteStream, its possible base.popRect() here will increment the frame when in reality, it should stay as was,
//until DelayedSpriteStream object truly animates a new frame of animation.
base.popRect();
//return the stream of the current animation of the group.
return currentStream.popRect();
}
public override void resetStream()
{
currentStream.resetStream();
currentStream = streams[0];
currentStreamIndex = 0;
base.resetStream();
}
public DelayedSpriteStream(SpriteStreamBase stream, int frameDelay)
: base(0)
{
this.stream = stream;
this.frameDelay=frameDelay;
frameElapse = frameDelay;
}
//StreamGroup still needs a frame count for its animation.
public static int getFrameCount(SpriteStreamBase[] streams)
{
int frameCount = 0;
for (int i = 0; i < streams.Length; i++)
{
frameCount += streams[i].totalFrames;
}
return frameCount;
}
protected override void LoadContent()
{
base.LoadContent();
Rectangle spriteRect = new Rectangle(0, 0, 36, 36);
sprite = new LinearSprite(Game.Content.Load<Texture2D>("Images/Ball"), Game1.spriteBatch, spriteRect);
Rectangle[] rects = new Rectangle[] { new Rectangle(0, 0, spriteRect.Width, spriteRect.Height) };
idle = new DelayedSpriteStream(new ExplicitSpriteStream(rects, true), 1);
sprite.updateStream(idle);
}
//updateStream swaps out the current animation fot the one defined in the parameter. Next time drawSprite is called, it will be the new sprite animation.
public void updateStream(SpriteStreamBase newStream)
{
//reset old steam so it can be displayed correctly again later
//upon first setting currentStream, the value would in fact be null;
//we also allow the same stream to be set, but just dont reset it. FUTURE: reset sprite when set again, make developers be more strict on when they set a new stream
if (currentStream != newStream && currentStream!=null)
{
currentStream.resetStream();
}
currentStream = newStream;
}
public StreamGroup(SpriteStreamBase[] streams)
: this(streams, false)
{
}
public StreamGroup(SpriteStreamBase[] streams, Boolean doesLoop)
: base(StreamGroup.getFrameCount(streams),doesLoop)
{
currentStream = streams[0];
this.streams = streams;
}
protected override void LoadContent()
{
base.LoadContent();
Rectangle spriteRect = new Rectangle(0, 0, 36, 74);
sprite = new LinearSprite(Game.Content.Load<Texture2D>("Images/WolfSprite"), Game1.spriteBatch, spriteRect);
Rectangle[] rects = new Rectangle[] { new Rectangle(0, 0, spriteRect.Width, spriteRect.Height), new Rectangle(spriteRect.Width, 0, spriteRect.Width, spriteRect.Height), new Rectangle(spriteRect.Width*2, 0, spriteRect.Width, spriteRect.Height) };
run = new DelayedSpriteStream(new ExplicitSpriteStream(rects, true), 2);
rects = new Rectangle[] { new Rectangle(spriteRect.Width * 3, 0, spriteRect.Width, spriteRect.Height), new Rectangle(spriteRect.Width * 4, 0, spriteRect.Width, spriteRect.Height), new Rectangle(0, spriteRect.Height, spriteRect.Width, spriteRect.Height), new Rectangle(spriteRect.Width, 0, spriteRect.Width, spriteRect.Height) };
jog = new DelayedSpriteStream(new ExplicitSpriteStream(rects,true),4);
rects = new Rectangle[] { new Rectangle(spriteRect.Width * 2, spriteRect.Height, spriteRect.Width, spriteRect.Height),
new Rectangle(spriteRect.Width * 3, 0, spriteRect.Width, spriteRect.Height),
new Rectangle(spriteRect.Width * 4, spriteRect.Height, spriteRect.Width, spriteRect.Height),
new Rectangle(0, spriteRect.Height*2, spriteRect.Width, spriteRect.Height) ,
new Rectangle(spriteRect.Width, spriteRect.Height*2, spriteRect.Width, spriteRect.Height) ,
new Rectangle(spriteRect.Width * 2, spriteRect.Height*2, spriteRect.Width, spriteRect.Height) ,
new Rectangle(spriteRect.Width * 3, spriteRect.Height*2, spriteRect.Width, spriteRect.Height) ,
new Rectangle(spriteRect.Width * 4, spriteRect.Height*2, spriteRect.Width, spriteRect.Height)
};
walk = new DelayedSpriteStream(new ExplicitSpriteStream(rects, true), 8);
rects = new Rectangle[] { new Rectangle(spriteRect.Width * 2, spriteRect.Height, spriteRect.Width, spriteRect.Height)
};
idle = new DelayedSpriteStream(new ExplicitSpriteStream(rects, true), 8);
sprite.updateStream(idle);
destRect = new Rectangle(0, 0, 36, 72);
}