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我是Java的初学者,也是流畅的工具。我想制作一个游戏,在窗口的某个区域内随机放置不同颜色的立方体。我如何获得一个随机数字以保持光滑?
我使用两个for-loops并在渲染中调用一个随机数。我把立方体放到我想要的位置,但问题是它们闪烁着各种颜色。我想这与我如何呼叫一个随机数字有关,并且它是通过FPS更新的?!
请帮助我!
public void render(GameContainer gc, StateBasedGame sdg, Graphics g) throws SlickException {
//set background
Image background = (new Image("res/background.png")).getScaledCopy(800, 500);
g.drawImage(background, 0, 0);
//set gamescape
blue = (new Image("res/blue.png")).getScaledCopy(20,20);
green = (new Image("res/green.png")).getScaledCopy(20,20);
red = (new Image("res/red.png")).getScaledCopy(20,20);
int xvalue = 300;
int yvalue = 400;
for (int a = 1; a < 20; a++) {
for (int i = 1; i < 10; i++) {
r = rand.nextInt(3);
if(r==0){g.drawImage(blue,xvalue,yvalue);}
else if(r==1){g.drawImage(red, xvalue, yvalue);}
else{g.drawImage(green, xvalue, yvalue);}
xvalue = xvalue+20;
}
yvalue = yvalue - 20;
xvalue = xvalue -180;
}
}