libGDX:使用touchDragged从Actor绘制和删除颜色 [英] libGDX : Paint And Remove Color From Actor with touchDragged

问题描述

我创建了 Button actor的二维数组，然后添加了 new ClickListener(){touchDragged} 作为以下代码:

I created two-dimensional array of Button actor, then I added new ClickListener() { touchDragged } as the following code:

buttons = new Button[3][3];

for (int row = 0; row < buttons.length; row++) {
    for (int col = 0; col < buttons[0].length; col++) {

buttons[row][col] = new Button(drawable);

buttons[row][col].addListener(new ClickListener() {

                @Override
                public void touchDragged(InputEvent event, float x, float y, int pointer) {
                    for (int row = 0; row < buttons.length; row++) {
                        for (int col = 0; col < buttons[0].length; col++) {
                            if (buttons[row][col].isOver()) {
                                buttons[row][col].setColor(Color.GREEN);
                            }
                        }
                    }
                }
   }
}

touchDragged 方法中的代码如果按钮 isOver 按钮着色 GREEN(它工作正常)，如图

the code inside touchDragged method if the buttons isOver the buttons colored GREEN (it works fine) as shown in image

现在，我如何从同一调用 touchDragged 方法中的按钮中删除 Color.GREEN 即 (Color.WHITE)，我的意思是如果 isOver()仍然 true ??

Now, How can I remove Color.GREEN i.e. (Color.WHITE) from buttons in the same calling touchDragged method, I mean undo GREEN to WHITE if the isOver() still true??

此图片清除了我的问题:

this image clear my question :

就像国王公司的字母游戏一样，如果您知道的话:).

like Alphabetty Game from king company, if you know it :).

对不起，英语不好

推荐答案

1-创建 List :

private List<Integer> list;

// In create OR show Method 
list = new ArrayList<Integer>();

2-创建此行代码(作为 buttons [row] [col] 的ID):

2- Create this line code (as ID for buttons[row][col]):

buttons[row][col].setName("" + id++);

3-循环后，在您的 touchDragged ..中编写以下代码:

3- Write this code inside your touchDragged .. after your loop:

if (buttons[row][col].isOver()) {
    try {
        if (list.contains(Integer.parseInt(buttons[row][col].getName()))) {
            if(Integer.parseInt(buttons[row][col].getName()) == list.get(list.size() - 2)) {
                stage.getRoot().findActor("" + list.get(list.size() - 1)).setColor(Color.WHITE);
                list.remove(list.size() - 1);
            }
        } else {
            buttons[row][col].setColor(Color.GREEN);
            list.add(Integer.parseInt(buttons[row][col].getName()));
        }
      } catch (Exception e) {
           System.out.println(e.getClass());
      }
}

4-在此视频

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