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確實卡在Android / Java上。 在Sprite按鈕上觸摸事件以執行特定操作

[英]Really stuck on Android/Java. Touch Event on a Sprite button to perform specific action

在過去的一天左右的時間里,我真的一直被困在這個位置上,我真的可以使用別人的意見來確定我要去哪里

因此,我有一個“玩游戲”圖像,我將其按以下方式加載到我的游戲中:

playGame = new SimpleControl(250.0f, 225.0f, 140.0f, 30.0f, "PlayBtn", this);

SimpleControl對象如下所示:

public SimpleControl(float x, float y, float width, float height,
                     String bitmapName, GameScreen gameScreen) {
    super(x, y, width, height, gameScreen.getGame().getAssetManager()
            .getBitmap(bitmapName), gameScreen);

public boolean isActivated() {

    // Consider any touch events occurring in this update
    Input input = mGameScreen.getGame().getInput();

    // Check if any of the touch events were on this control
    BoundingBox bound = getBound();
    for (int idx = 0; idx < TouchHandler.MAX_TOUCHPOINTS; idx++) {
        if (input.existsTouch(idx)) {
            if (bound.contains(input.getTouchX(idx), input.getTouchY(idx))) {
                return true; }}}
return false; }

我的Game類中有一個更新方法,如下所示:

Input input = mGame.getInput();
    List<TouchEvent> touchEvents = input.getTouchEvents();
    if (touchEvents.size() > 0) {
        TouchEvent touchevent = touchEvents.get(0);
        {
            if (playGame.isActivated()) {
                mGame.getScreenManager().removeScreen(this.getName());
                AboutScreen aboutScreen = new AboutScreen(mGame);
                mGame.getScreenManager().addScreen(aboutScreen);
            }

不幸的是,當我運行此按鈕時,該按鈕沒有發生任何觸摸事件,但是屏幕上有一小部分顯示了該事件: http : //i.imgur.com/R4nVIRP.png

BoundingBox.java:
public BoundingBox(float x, float y, float halfWidth, float halfHeight) {
    this.x = x;
    this.y = y;
    this.halfWidth = halfWidth;
    this.halfHeight = halfHeight;
}

public boolean contains(float x, float y) {
    return (this.x - this.halfWidth < x && this.x + this.halfWidth > x
            && this.y - this.halfHeight < y && this.y + this.halfHeight > y);
}

先感謝您 :)

您的contains(float x, float y)看起來不正確。

this.x - this.halfwidth < x表示它在邊界框開始之前的某個位置檢查x

例如,您的x應該是- (x>=this.x && x<=(this.x + 2*this.halfwidth))並且y應該是(y>=this.y && y<=(this.y + 2.this.halfHeight))

(假設halfWidth和halfHeight是他們所說的話)(而且,由於它對我們而言已被阻止,因此無法打開imgur鏈接)

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