Java Slick2D-检测鼠标悬停在图像上

我试图检测鼠标何时悬停在图像上（播放图像），以及何时单击鼠标时发生了什么

我在屏幕中央绘制了一幅图像，我不知道如何在我自己的代码中实现这一点：

    @Override
        public void init(GameContainer arg0, StateBasedGame arg1) throws SlickException {
            f = (float) (0.1 * Main_Activity.apg.getHeight() / 180);
            play = new Image("res/play_image.png");
            play_Original_Width = play.getWidth();
            play_Original_Height = play.getHeight();
            Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
            width = screenSize.getWidth();
            height = screenSize.getHeight();
        }

        @Override
        public void render(GameContainer arg0, StateBasedGame arg1, Graphics g) throws SlickException {

            play.draw(Main_Activity.apg.getWidth() / 2 - ((play_Original_Width * f) / 2),
                    Main_Activity.apg.getHeight() / 2 - ((play_Original_Height * f) / 2), f);

        }

@Override
    public void update(GameContainer gc, StateBasedGame sbg, int arg2) throws SlickException {
        int x = Mouse.getX();
        int y = Mouse.getY();

    }

apg：

如何检测鼠标何时悬停在图像上（播放图像）

---

非常感谢。

您只需测试您的x值是否在图像x和图像x+图像宽度之间，y值是否相同

在更新方法中：

int x = Mouse.getX();
int y = Mouse.getY();
int playX = Main_Activity.apg.getWidth() / 2 - ((play_Original_Width * f) / 2);
int playY = Main_Activity.apg.getHeight() / 2 - ((play_Original_Height * f) / 2);

if (x > playX && x < playX+play_Original_Width && y > playY && y < playY + play_Original_Height) {
    // then your mouse coordinates are over your image.
}

Rectangle mousePosition = new Rectangle(x,y,1,1);
if(mousePosition.intersects(playImageRectangle)) {//do whatever you need}

在您的方法中：

int x = Mouse.getX();
int y = Mouse.getY();
int playX = Main_Activity.apg.getWidth() / 2 - ((play_Original_Width * f) / 2);
int playY = Main_Activity.apg.getHeight() / 2 - ((play_Original_Height * f) / 2);

if (x > playX && x < playX+play_Original_Width && y > playY && y < playY + play_Original_Height) {
    // then your mouse coordinates are over your image.
}

Rectangle mousePosition = new Rectangle(x,y,1,1);
if(mousePosition.intersects(playImageRectangle)) {//do whatever you need}