javascript - Kaboom.js : how to set the background to an image

Question

我正在制作一个 kaboom.js 游戏，我想将场景的背景设置为图像。我只能找到将背景更改为颜色的解决方案。我希望有人能帮帮忙!

Answer 1

在 Kaboom.js 中，没有对背景图像的特殊支持。但是，您可以使用带有 Sprite 组件的常规游戏对象作为背景图像。这是一个简单的例子:

async function init() {
  kaboom();
  let bgImage = await loadSprite("background", "https://www.paulwheeler.us/files/windows-95-desktop-background.jpg");

  let background = add([
    sprite("background"),
    // Make the background centered on the screen
    pos(width() / 2, height() / 2),
    origin("center"),
    // Allow the background to be scaled
    scale(1),
    // Keep the background position fixed even when the camera moves
    fixed()
  ]);
  // Scale the background to cover the screen
  background.scaleTo(Math.max(
    width() / bgImage.tex.width,
    height() / bgImage.tex.height
  ));
}

init();

<script src="https://cdn.jsdelivr.net/npm/kaboom@2000.1.8/dist/kaboom.js"></script>