/// <summary>
/// Function initializes the catapult instance and loads the animations from XML definition sheet
/// </summary>
public override void Initialize()
{
// Define initial state of the catapult
IsActive = true;
AnimationRunning = false;
currentState = CatapultState.Idle;
stallUpdateCycles = 0;
// Load multiple animations form XML definition
XDocument doc = null;
#if ANDROID
using(var stream = Game.Activity.Assets.Open(@"Content/Textures/Catapults/AnimationsDef.xml"))
{
doc = XDocument.Load(stream);
}
#else
doc = XDocument.Load("Content/Textures/Catapults/AnimationsDef.xml");
#endif
XName name = XName.Get("Definition");
var definitions = doc.Document.Descendants(name);
// Loop over all definitions in XML
foreach (var animationDefinition in definitions)
{
bool? toLoad = null;
bool val;
if (bool.TryParse(animationDefinition.Attribute("IsAI").Value, out val))
toLoad = val;
// Check if the animation definition need to be loaded for current catapult
if (toLoad == isAI || null == toLoad)
{
// Get a name of the animation
string animatonAlias = animationDefinition.Attribute("Alias").Value;
Texture2D texture =
curGame.Content.Load<Texture2D>(animationDefinition.Attribute("SheetName").Value);
// Get the frame size (width & height)
Point frameSize = new Point();
frameSize.X = int.Parse(animationDefinition.Attribute("FrameWidth").Value);
frameSize.Y = int.Parse(animationDefinition.Attribute("FrameHeight").Value);
// Get the frames sheet dimensions
Point sheetSize = new Point();
sheetSize.X = int.Parse(animationDefinition.Attribute("SheetColumns").Value);
sheetSize.Y = int.Parse(animationDefinition.Attribute("SheetRows").Value);
// If definition has a "SplitFrame" - means that other animation should start here - load it
if (null != animationDefinition.Attribute("SplitFrame"))
splitFrames.Add(animatonAlias,
int.Parse(animationDefinition.Attribute("SplitFrame").Value));
// Defing animation speed
TimeSpan frameInterval = TimeSpan.FromSeconds((float)1 /
int.Parse(animationDefinition.Attribute("Speed").Value));
Animation animation = new Animation(texture, frameSize, sheetSize);
// If definition has an offset defined - means that it should be rendered relatively
// to some element/other animation - load it
if (null != animationDefinition.Attribute("OffsetX") &&
null != animationDefinition.Attribute("OffsetY"))
{
animation.Offset = new Vector2(int.Parse(animationDefinition.Attribute("OffsetX").Value),
int.Parse(animationDefinition.Attribute("OffsetY").Value));
}
animations.Add(animatonAlias, animation);
}
}
// Load the textures
idleTexture = curGame.Content.Load<Texture2D>(idleTextureName);
// Initialize the projectile
Vector2 projectileStartPosition;
if (isAI)
projectileStartPosition = new Vector2(630, 340);
else
projectileStartPosition = new Vector2(175, 340);
projectile = new Projectile(curGame, spriteBatch, "Textures/Ammo/rock_ammo",
projectileStartPosition, animations["Fire"].FrameSize.Y, isAI, gravity);
projectile.Initialize();
// Initialize randomizer
random = new Random();
base.Initialize();
}