我使用AndEngine 來實(shí)現(xiàn)sprite更換圖片。使用這個(gè)sprite可以在屏幕之間來回拖動(dòng)圖片。所以我想實(shí)現(xiàn)的是當(dāng)用戶觸摸屏幕的任何一個(gè)地方，或者向上或向下移動(dòng)，可以使sprite彈出圖片。使用AndEngine如何處理這個(gè)問題呢？非常感謝！
1 回答
慕哥6287543
TA貢獻(xiàn)1831條經(jīng)驗(yàn) 獲得超10個(gè)贊
下面的方法應(yīng)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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