public static Animation FromAnimationSave(AnimationChainSave animationSave)
{
//这个类没有构造函数，所以编译器自动会添加一个空的构造函数
Animation toReturn = new Animation ();
toReturn.Name = animationSave.Name;
//读取frame(AnimationFrameSave)中的所有动画数据
foreach (var frame in animationSave.Frames)
{
CCRect rectangle;
rectangle = new CCRect (
frame.LeftCoordinate,
frame.TopCoordinate,
frame.RightCoordinate - frame.LeftCoordinate,
frame.BottomCoordinate - frame.TopCoordinate);
var duration = TimeSpan.FromSeconds (frame.FrameLength);
//toReturn.frames是一个frame的集合
//每一个frame是动作的一步
//AddFrame就是把读取到的frame添加到这个list里
toReturn.AddFrame (rectangle, duration, flipHorizontal:frame.FlipHorizontal);
}
return toReturn;
}
public Player ()
{
LoadAnimations ("Content/animations/playeranimations.achx");
walkLeftAnimation = animations.Find (item => item.Name == "WalkLeft");
walkRightAnimation = animations.Find (item => item.Name == "WalkRight");
CurrentAnimation = walkLeftAnimation;
}
public Player()
{
//LoadAnimations可以用是因为Player : PhysicsEntity， PhysicsEntity : AnimatedSpriteEntity, LoadAnimations是AnimatedSpriteEntity的方法
//读取achx中所有的AnimationChain
LoadAnimations ("Content/animations/playeranimations.achx");
//achx文件本质是xml
walkLeftAnimation = animations.Find (item => item.Name == "WalkLeft");
walkRightAnimation = animations.Find (item => item.Name == "WalkRight");
//初始化动作为向左走
CurrentAnimation = walkLeftAnimation;
}
public Enemy()
{
LoadAnimations ("Content/animations/blueenemyanimations.achx");
CurrentAnimation = animations [0];
walkLeftAnimation = animations.Find (item => item.Name == "WalkLeft");
walkRightAnimation = animations.Find (item => item.Name == "WalkRight");
this.VelocityX = 0;
this.AccelerationY = PlayerMovementCoefficients.GravityAcceleration;
}
public static Animation FromAnimationSave(AnimationChainSave animationSave)
{
Animation toReturn = new Animation ();
toReturn.Name = animationSave.Name;
foreach (var frame in animationSave.Frames)
{
CCRect rectangle;
rectangle = new CCRect (
frame.LeftCoordinate,
frame.TopCoordinate,
frame.RightCoordinate - frame.LeftCoordinate,
frame.BottomCoordinate - frame.TopCoordinate);
var duration = TimeSpan.FromSeconds (frame.FrameLength);
toReturn.AddFrame (rectangle, duration, flipHorizontal:frame.FlipHorizontal);
}
return toReturn;
}
protected void LoadAnimations(string fileName)
{
//把动画读到dictionary里，如果dic中已经存在则直接读取
if (animationCache.ContainsKey (fileName))
{
animations = animationCache [fileName];
}
else
{
animations = new List<Animation> ();
AnimationChainListSave acls = XmlDeserializer.Self.XmlDeserialize<AnimationChainListSave> (fileName);
foreach (var animationSave in acls.AnimationChains)
{
//从animationSave(AnimationChainSave类)中读取animation，一个一个添加到animation 的list里
animations.Add (Animation.FromAnimationSave (animationSave));
}
animationCache.Add (fileName, animations);
}
// This prevents the sprite from temporarily showing
// the entire PNG for a split second.
if (animations != null && animations.Count > 0)
{
CurrentAnimation = animations [0];
}
}