获取鼠标在网格上单击的坐标easy java StdDraw

Question

好的，我正在尝试得到鼠标点击的方格上的坐标(为什么我将其转换为int)，这给了我鼠标的当前位置，然而，我想要的是鼠标单击后的位置，并且在鼠标悬停时不会发生任何事情。

我该怎么办？

while (gameOver==false){
    mouseX= (int) StdDraw.mouseX();
    mouseY=(int) StdDraw.mouseY();
    game.update(mouseX, mouseY);
}

现在我有了

    public void mouseReleased(MouseEvent e){
       int mouseX = e.getX();
       int mouseY = e.getY();
               synchronized (mouseLock) {
    mousePressed = false;
}
}
public void run(){
    print();
    boolean gameOver=false;
    int mouseX,mouseY;
    StdDraw.setCanvasSize(500, 500);
    StdDraw.setXscale(0, game.gettheWidth());
    StdDraw.setYscale(0, game.gettheHeight());
    game.update(-1,-1);
    while (gameOver==false){

            mouseReleased(????)
            game.update(mouseX, mouseY);
        }       

}

还是不能工作

所有这些都没有任何意义，

有没有人能给我举个例子，先得到x和y坐标，然后打印出来？我想让mouseX和mouseY作为鼠标点击的坐标。我在网上看过了，其他问题我都不懂，我猜是和鼠标事件有关吧？

Answer 1

StdDraw实现了一个MouseListener。重载mouseReleased方法以设置mouseX和mouseY变量。

要重载，请按照运行所需的方式重写方法：

int mouseX = 0;
int mouseY = 0;
public static void main(String[] args) {
    //do stuff
    //...
    while (gameOver == false) {
        //because mouseX and mouseY only change when the mouse button is released
        //they will remain the same until the user clicks and releases the mouse button
        game.update(mouseX, mouseY);
    }
}

//mouseReleased happens whenever the user lets go of the mouse button
@Override
public void mouseReleased(MouseEvent e) {
    //when the user lets go of the button, send the mouse coordinates to the variables.
    mouseX = e.getX();
    mouseY = e.getY();
    synchronized (mouseLock) {
        mousePressed = false;
    }
}

例如，mouseX和mouseY都是0。我在5, 6上单击鼠标，拖动鼠标，然后在120, 50上释放鼠标。调用mouseReleased并将mouseX更改为120，将mouseY更改为50。同时，game.update(0,0)一直在发生。它现在更改为game.update(120，50)，并将一直保持到我再次释放鼠标按钮为止。

要打印鼠标坐标：

@Override
public void mouseReleased(MouseEvent e) {
    //when the user lets go of the button, send the mouse coordinates to the variables.
    System.out.println("mouse x coord = " + e.getX());
    System.out.println("mouse y coord = " + e.getY());
    synchronized (mouseLock) {
        mousePressed = false;
    }
}