在Andengine中使用路径

发布于 2024-12-23 16:24:26 字数 449 浏览 0 评论 0原文

我在 AndEngine 中使用 Path，允许将精灵移动到提供 X 和 Y 坐标的特定位置。

我的 scehe 上附加了一朵云，我希望云在 X 轴上从一侧到另一侧来回移动但不超过相机（在横向模式下将是水平的）。

这是我到目前为止所得到的：

Sprite cloudSprite = new Sprite(50, 300, (TextureRegion)this.cloud);
final Path path = new Path(10).to(50,300).to(100, 300);

cloudSprite.registerEntityModifier(new LoopEntityModifier(new PathModifier(10, path)));

但这不能正常工作，我尝试将 X 和 Y 更改为参数，但无济于事。

有人知道我怎样才能完成这件事吗？

原文

I am using a Path in AndEngine that allows a sprite to be moved to a specific location providing the X and Y coordinates.

i have a cloud attached to my scehe, and i want the cloud to move back and forth from side to side but not exceeding the camera, on the X axis(which would be horizontal in landscape mode).

Here is what i have so far:

Sprite cloudSprite = new Sprite(50, 300, (TextureRegion)this.cloud);
final Path path = new Path(10).to(50,300).to(100, 300);

cloudSprite.registerEntityModifier(new LoopEntityModifier(new PathModifier(10, path)));

This doesnt work correctly though, ive tried changing the X, and Y to parameters but to no avail.

Anyone know how i could get this done?

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疧_╮線 2024-12-30 16:24:26

您不应该为此目的使用 PathModifier；请改用 MoveXModifier。

final float minX = 0;
final float maxX = CAMERA_WIDTH - cloudSprite.getWidth();
final float duration = //Duration for the full move across the screen here.
final MoveXModifier rightMoveModifier = new MoveXModifier(minX, maxX, duration);
final MoveXModifier leftMoveModifier = new MoveXModifier(maxX, minX, duration);
cloudSprite.registerEntityModifier(new LoopEntityModifier(new SequenceModifier(rightMoveModifier, leftMoveModifier)));

（这里我们假设游戏加载时云被放置在屏幕的左侧）

这应该可行。

You shouldn't be using a PathModifier for this purpose; Use MoveXModifier instead.

final float minX = 0;
final float maxX = CAMERA_WIDTH - cloudSprite.getWidth();
final float duration = //Duration for the full move across the screen here.
final MoveXModifier rightMoveModifier = new MoveXModifier(minX, maxX, duration);
final MoveXModifier leftMoveModifier = new MoveXModifier(maxX, minX, duration);
cloudSprite.registerEntityModifier(new LoopEntityModifier(new SequenceModifier(rightMoveModifier, leftMoveModifier)));

(Here we assume the cloud is placed in the left of the screen when the game loads)

This should work.

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