/// <summary>
/// load sheet data
/// </summary>
/// <param name="contentManager">the game contentmanager</param>
/// <param name="xmlFile">the data file</param>
/// <returns>error code, 0 if errorless</returns>
public int Load(ContentManager contentManager, string xmlFile)
{
animationList = new Dictionary<string, Animation>();
XElement document = XElement.Load(Path.Combine(contentManager.RootDirectory, xmlFile) + ".xml");
int end = xmlFile.LastIndexOf('\\') + 1;
string directory = xmlFile.Remove(end, xmlFile.Length - end);
//this.texture = contentManager.Load<Texture2D>(directory + document.Name.LocalName);
//textures
foreach (XElement texture in document.Element("Textures").Elements())
{
if (texture.Name.LocalName == "Texture")
{
Texture2D newTexture = contentManager.Load<Texture2D>(directory + texture.Attribute("name").Value);
this.textures.Add(texture.Attribute("name").Value, newTexture);
}
}
int x = 0, y = 0;
double scale = 0.0, rate = 0.0;
//mesh
if (document.Element("Mesh") != null)
{
if (int.TryParse(document.Element("Mesh").Attribute("x").Value, out x) &&
int.TryParse(document.Element("Mesh").Attribute("y").Value, out y))
mesh = new Rectangle(x, y, textures.First().Value.Width / x, textures.First().Value.Height / y);
}
//framerate
if (double.TryParse(document.Element("Framerate").Attribute("default").Value, out rate))
defaultFrameRate = (float)rate;
//default scale
if (double.TryParse(document.Element("Scale").Attribute("default").Value, out scale))
defaultScale = (float)scale;
//size
//if (int.TryParse(document.Element("Size").Attribute("x").Value, out x) &&
// int.TryParse(document.Element("Size").Attribute("y").Value, out y))
// defaultSpriteSize = new Vector2((float)x, (float)y);
//animations
foreach (XElement animation in document.Element("Animations").Elements())
{
Animation newAnimation = new Animation();
newAnimation.frameList = new List<Frame>();
//frames
foreach (XElement frame in animation.Elements("Frame"))
{
Frame newFrame = new Frame();
if (mesh != null)
{
//not null, we create as it were a solid mesh
newFrame.coords.Width = mesh.Value.Width;
newFrame.coords.Height = mesh.Value.Height;
//coords
if (int.TryParse(frame.Attribute("x").Value, out x))
newFrame.coords.X = x * newFrame.coords.Width;
if (int.TryParse(frame.Attribute("y").Value, out y))
newFrame.coords.Y = y * newFrame.coords.Height;
}
else
{
//null, so we grab the manually defined values
if (int.TryParse(animation.Attribute("width").Value, out x))
newFrame.coords.Width = x;
if (int.TryParse(animation.Attribute("height").Value, out y))
newFrame.coords.Height = y;
//coords, per-pixel
if (int.TryParse(frame.Attribute("x").Value, out x))
newFrame.coords.X = x;
if (int.TryParse(frame.Attribute("y").Value, out y))
newFrame.coords.Y = y;
}
//check if flip
if(frame.Attribute("flip") != null)
switch (frame.Attribute("flip").Value)
{
case "H":
newFrame.flip = SpriteEffects.FlipHorizontally;
break;
case "V":
newFrame.flip = SpriteEffects.FlipVertically;
break;
default:
break;
}
newAnimation.frameList.Add(newFrame);
}
newAnimation.returnAnimation = animation.Element("End").Attribute("return").Value;
newAnimation.name = animation.Name.LocalName;
//add to list
animationList.Add(animation.Name.LocalName, newAnimation);
}
//done
return 0;
}
/// <summary>
/// update
/// </summary>
/// <param name="gametime"></param>
public void Update(GameTime gametime)
{
//if empty, then no frame
if (currentAnimation != null)
{
//time
currentAnimatonTime += (float)gametime.ElapsedGameTime.TotalSeconds * frameRate;
//if gone past animation life, switch to return
if (currentAnimatonTime > currentAnimation.Value.frameList.Count)
{
//set to return
SetAnimation(currentAnimation.Value.returnAnimation);
if (currentAnimation == null)
{
//Call Animation End event
if (OnAnimationEnd != null)
OnAnimationEnd();
}
}
else
{
//get render frame from list
currentFrame = currentAnimation.Value.frameList.ElementAt((int)currentAnimatonTime);
}
}
}