我使用AndEngine 來實現sprite更換圖片。使用這個sprite可以在屏幕之間來回拖動圖片。所以我想實現的是當用戶觸摸屏幕的任何一個地方，或者向上或向下移動，可以使sprite彈出圖片。使用AndEngine如何處理這個問題呢？非常感謝！
1 回答
慕哥6287543
TA貢獻1831條經驗 獲得超10個贊
下面的方法應該可以：
@Override
public boolean onSceneTouchEvent(Scene pScene, TouchEvent pSceneTouchEvent) {
if(pSceneTouchEvent.isActionDown()) { //Jump only if the user tapped, not moved his finger or something
final Entity playerEntity = ...;//Get player entity here.
final float jumpDuration = 2;
final float startX = playerEntity.getX();
final float jumpHeight = 100;
final MoveYModifier moveUpModifier = new MoveYModifier(jumpDuration / 2, startX, startX - jumpHeight); // -
since we want the sprite to go up.
final MoveYModifier moveDownModifier = new MoveYModifier(jumpDuration / 2, startX + jumpHeight, startX);
final SequenceEntityModifier modifier = new SequenceEntityModifier(moveUpModifier, moveDownModifier);
playerEntity.registerEntityModifier(modifier);
return true;
}
return false;
}添加回答
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