我已经建立了一个游戏，其中演员萤火虫随机飞过屏幕，同时发光和关闭 - 用户可以将它们拖入一个梅森罐子里。很高兴我有这个工作，但我想补充一点细节。我想添加一个两步动画，看起来它们的翅膀正在拍打。
我知道如何使用Animation类，使用TextureAtlas和TextureRegion。但那是在我前往这个Drag n Drop方向之前。
我认为，我的问题是我使用的是皮肤，而且他们可能不会使用Animations。
/////////////////// 部分代码。 ///////////////////
我声明的一些项目最高：
private TextureAtlas textureAtlas;
private Texture texture;
private TextureRegion[] regions = new TextureRegion[3];
private Animation ffFlapping;
设置我的TextureAtlas：
textureAtlas = new TextureAtlas(Gdx.files.internal("Player Animation/player_animation.png.atlas"));
texture = new Texture(Gdx.files.internal("Player Animation/player_animation.png.png"));
设置皮肤：
final Skin skin = new Skin();
skin.addRegions(textureAtlas);
做动画：
TextureRegion[] ffAnimation = new TextureRegion[2];
ffAnimation[0] = (textureAtlas.findRegion("firefly-0"));
ffAnimation[1] = (textureAtlas.findRegion("firefly-1"));
ffFlapping = new Animation(0.01f, ffAnimation);
用于循环创建我的所有萤火虫：
// ********************************************
// iterate through the number of fireflies
// we want to draw out using fireflyCount
// ********************************************
for (int fireflyIndex = 0; fireflyIndex < fireflyCount; fireflyIndex++) {
// YELLOW FIREFLY HERE
String fireflyName = "firefly" + fireflyIndex;
// if I replace ffFlapping below with object, I get no errors,
// but also no animation
skin.add(fireflyName, ffFlapping);
final Firefly ff = new Firefly(skin, fireflyName);
System.out.println("Fireflies objects:" + fireflyIndex);
// Not sure this affected the color, but it starts the alpha at 0
ff.setColor(150, 150, 150, 0);
ff.setOrigin(ff.getWidth()/2, ff.getHeight()/2);
stage.addActor(ff);
// This was set up in the attempt to continue movement if user misses target
final MoveToAction actionRight = new MoveToAction();
final MoveToAction actionLeft = new MoveToAction();
// setting up right and left targets, with a random Y position
float toRight = Gdx.graphics.getWidth() + 60;
float toLeft = (Gdx.graphics.getWidth() -Gdx.graphics.getWidth())-60f;
// sets up speed of glow, and the random time firefly is off, and also on
float glow = MathUtils.random(.5f, 1f);
float delayRandomOff = MathUtils.random(2.3f, 4.5f);
float delayRandomOn = MathUtils.random(.5f, .9f);
// sets up first variable to randomly choose between toRight and toLeft
// assigns direction to that value
float randomDirection = MathUtils.random.nextBoolean() ? toRight : toLeft;
float direction = randomDirection;
SequenceAction sequence = new SequenceAction();
AlphaAction aa = new AlphaAction();
Action alphaStartOn = Actions.delay(delayRandomOn, Actions.fadeOut(glow));
Action alphaStartOff = Actions.delay(delayRandomOff, Actions.fadeIn(glow));
// toRight is the x value ... it goes (x, y, duration)
Action startRight = Actions.moveTo(toRight, MathUtils.random(50, Gdx.graphics.getHeight() - 40), MathUtils.random(10f, 45f));
// toLeft is the x value ... it goes (x, y, duration)
// 170 makes sure they don't fly on top of mason jar
Action startLeft = Actions.moveTo(toLeft, MathUtils.random(170, Gdx.graphics.getHeight() - 40), MathUtils.random(10f, 45f));
Action faceOpposite = Actions.rotateBy(180f);
Action faceOpposite2 = Actions.rotateBy(180f);
// THIS ENDLESSLY LOOPS THEM ON THE SCREEN
Action loopRight = Actions.forever(Actions.sequence(faceOpposite, startRight, faceOpposite2, startLeft));
Action loopLeft = Actions.forever(Actions.sequence(startLeft, faceOpposite, startRight, faceOpposite2));
Action loopGlow1 = Actions.forever(Actions.sequence(alphaStartOn, alphaStartOff));
Action loopGlow2 = Actions.forever(Actions.sequence(alphaStartOff, alphaStartOn));
// THIS IS DEFINITELY TRIGGERING THE MOVEMENT
if(direction == toRight) {
ff.addAction(loopRight);
ff.addAction(loopGlow1);
} else {
ff.addAction(loopLeft);
ff.addAction(loopGlow2);
}
// MAKE EACH FIREFLY DRAGGABLE, and SET LARGER SIZE as you drag
dragAndDrop.addSource(new DragAndDrop.Source(ff) {
public DragAndDrop.Payload dragStart (InputEvent event, float x, float y, int pointer) {
DragAndDrop.Payload payload = new DragAndDrop.Payload();
payload.setObject("Firefly captured");
payload.setDragActor(ff);
ff.clearActions();
getActor().setSize(80, 80);
// Firefly freezes on drag, and enlarges ... disappears if dropped in jar
// Does not visually drag with cursor since it was part of animation.
return payload;
}
// IF YOU DON'T DROP FIREFLY ON TARGET, MAKE SURE IT STAYS ON STAGE
// AND GOES BACK TO THE NORMAL SIZE
@Override
public void dragStop(InputEvent event, float x, float y, int pointer, DragAndDrop.Payload payload, DragAndDrop.Target target) {
if(target == null)
stage.addActor(ff);
ff.addAction(actionLeft);
getActor().setSize(50, 50);
}
});
// MAKE EACH FIREFLY DRAGGABLE, and SET LARGER SIZE as you drag
dragAndDrop.addSource(new DragAndDrop.Source(ff) {
public DragAndDrop.Payload dragStart (InputEvent event, float x, float y, int pointer) {
DragAndDrop.Payload payload = new DragAndDrop.Payload();
payload.setObject("Firefly captured");
payload.setDragActor(ff);
ff.clearActions();
getActor().setSize(80, 80);
// Firefly freezes on drag, and enlarges ... disappears if dropped in jar
// Does not visually drag with cursor since it was part of animation.
return payload;
}
// IF YOU DON'T DROP FIREFLY ON TARGET, MAKE SURE IT STAYS ON STAGE
// AND GOES BACK TO THE NORMAL SIZE
@Override
public void dragStop(InputEvent event, float x, float y, int pointer, DragAndDrop.Payload payload, DragAndDrop.Target target) {
if(target == null)
stage.addActor(ff);
ff.addAction(actionLeft);
getActor().setSize(50, 50);
}
});
} // ***** END OF FOR LOOP ***********
这是我的Firefly代码：
public class Firefly extends Image {
private float x = MathUtils.random(20, Gdx.graphics.getWidth() -40);
private float y = MathUtils.random(200, Gdx.graphics.getHeight() - 40);
private float width = 70;
private float height = 70;
public Firefly(Skin skin, String drawableName) {
super(skin, drawableName);
this.setBounds(x, y, width, height);
}
} // firefly
我得到的错误是：
com.badlogic.gdx.utils.GdxRuntimeException: No Drawable, NinePatch, TextureRegion, Texture, or Sprite registered with name: firefly-2
///////////////////////////////
非常感谢任何提示。 与此同时，我正在创建一个新的功能分支并保持它。 我的猜测是我需要以某种方式将我的两步动画制作成某种Drawable。
谢谢！
- 比尔