前言
此项目使用pixi.js和vue实现，部分素材来自爱给网，本项目仅作用于 pixi.js 学习用途，侵权立删。
项目地址
shellingfordly/pixi-games
demo地址
pixi-games
初始化项目
使用vite初始化项目
pnpm create vite my-vue-app安装pixi.js和pixi-tweener
pixi-tweener一个做过度动画的开源库
pnpm i pixi.js pixi-tweener主要逻辑
useParkour
此函数用于创建pixi app，将场景，障碍物，人物添加到app中
- containerRef canvas的容器
- gameStart 开始游戏
- start 开始状态
- score 分数
- hp 血量
export function useParkour() {
const containerRef = ref();
const app = new Application({
width: BODY_HEIGHT,
height: BODY_WIDTH,
backgroundColor: 0xffffff,
});
const start = ref(false);
Tweener.init(app.ticker);
const container = new Container();
app.stage.addChild(container);
const player = new Player();
const { scene, runScene, stopScene } = useScene();
const { trap, runHurdle, score, hp } = useHurdle();
container.addChild(player);
container.addChild(scene);
container.addChild(trap);
container.sortChildren();
runScene();
function gameStart() {
start.value = true;
player.play();
const timer = setTimeout(() => {
runHurdle(player);
clearTimeout(timer);
}, 1000);
}
watch(hp, (value) => {
if (value === 0) {
player.stop();
stopScene();
start.value = false;
}
});
onMounted(() => {
if (containerRef.value) containerRef.value.appendChild(app.view);
});
return { containerRef, app, score, hp, gameStart, start };
}useScene
此函数用于创建天空、地面场景
加载天空、地面纹理，创建平铺精灵(TilingSprite)，这个TilingSprite类比较方便做场景的移动
创建ticker递减精灵的x坐标实现场景移动
export function useScene() {
const loader = new Loader();
const scene = new Container();
scene.height = 130;
scene.zIndex = 1;
const ticker = new Ticker();
loader
.add("footer", FooterImg)
.add("sky", SkyImg)
.load(() => {
const footer = new TilingSprite(
loader.resources.footer.texture as Texture,
BODY_HEIGHT,
130
);
footer.y = BODY_WIDTH - 130;
footer.zIndex = 2;
const sky = new TilingSprite(
loader.resources.sky.texture as Texture,
BODY_HEIGHT,
BODY_WIDTH - 80
);
sky.tileScale.y = 0.6;
sky.zIndex = 1;
sky.y = -30;
scene.addChild(footer);
scene.addChild(sky);
scene.sortChildren();
const sceneTicker = () => {
footer.tilePosition.x -= 3;
sky.tilePosition.x -= 3;
};
ticker.add(sceneTicker);
});
function runScene() {
ticker.start();
}
function stopScene() {
ticker.stop();
}
return { scene, runScene, stopScene };
}useHurdle
此函数用于创建障碍物
和创建场景其实差不多，只是障碍物是普通的精灵类(Sprite)，创建ticker移动其x
在移动时做和人物的碰撞检测，如果碰撞则减少生命值，如果没有则增加分数
export function useHurdle() {
const loader = new Loader();
const trap = new Container();
const ticker = new Ticker();
const textures: Texture[] = [];
let player: Sprite | null = null;
const hp = ref(100);
const score = ref(0);
let timer: NodeJS.Timer;
trap.zIndex = 3;
loader.add("trap", TrapImg).load((_, resources) => {
TrapTexturePosition.forEach((position) => {
const t = new Texture(
resources.trap.texture as any,
new Rectangle(...position)
);
textures.push(t);
});
});
loader.load(() => {
timer = setInterval(() => {
const index = Math.floor(Math.random() * 2) + 1;
const item = new Sprite(textures[index]);
item.width = 80;
item.height = 40;
item.x = BODY_HEIGHT;
item.y = BODY_WIDTH - 120;
trap.addChild(item);
let scoreFlag = true;
let hpFlag = true;
let isHit = false;
function itemTicker() {
item.x -= 8;
if (player && !isHit) {
isHit = hitTestRectangle(player, item);
if (hpFlag && isHit) {
hp.value -= 10;
hpFlag = false;
if (hp.value === 0) stopGame();
} else if (scoreFlag && item.x < player.x) {
score.value++;
scoreFlag = false;
}
}
if (item.x < -item.width) {
ticker.remove(itemTicker);
trap.removeChild(item);
}
}
ticker.add(itemTicker);
}, 2000);
});
function runHurdle(target: Sprite) {
player = target;
ticker.start();
}
function stopGame() {
timer && clearInterval(timer);
ticker.stop();
}
return { trap, runHurdle, score, hp };
}Player
玩家类：实现跑动、上跳、滑铲、入场的效果
通过变换Sprite的texture实现跑动效果，监听键盘事件，上键时减y，下键时更换滑铲纹理
export class Player extends Sprite {
defaultY = BODY_WIDTH - 160;
textures: Texture[] = [];
status: "run" | "jump" | "slide" = "run";
ticker = new Ticker();
constructor() {
super();
this.width = 80;
this.height = 80;
this.x = -120;
this.y = this.defaultY;
this.zIndex = 10;
this.loader();
this.watchEvent();
}
private loader() {
const loader = new Loader();
loader.add("player", PlayerImg).load((_, resources) => {
PlayerTexturePosition.forEach((position, i) => {
const texture = new Texture(
resources.player.texture as any,
new Rectangle(...position)
);
this.textures.push(texture);
});
});
}
private watchEvent() {
document.addEventListener("keydown", this.keydown);
document.addEventListener("keyup", this.keyup);
}
private clearEvent() {
document.removeEventListener("keyup", this.keydown);
document.removeEventListener("keydown", this.keyup);
}
private keydown = (e: any) => {
if (e.code === "ArrowUp") {
this.status = "jump";
if (this.y === this.defaultY) {
Tweener.add(
{ target: this, duration: 0.3, ease: Easing.easeInOutQuint },
{ y: this.y - 120 }
);
}
} else if (e.code === "ArrowDown") {
this.status = "slide";
this.texture = this.textures[10];
}
};
private keyup = () => {
this.status = "run";
};
stop() {
this.ticker.stop();
this.clearEvent();
}
play() {
this.ticker.autoStart = true;
const runTicker = () => {
this.down();
this.entrance();
if (this.status === "run") this.run();
else if (this.status === "jump") this.jump();
};
this.ticker.add(runTicker);
}
// 跑
run() {
this.texture = this.textures[Math.floor(Date.now() / 100) % 8];
}
jump() {
this.texture = this.textures[(Math.floor(Date.now() / 100) % 5) + 11];
}
// 下落
down() {
if (this.y < this.defaultY) {
this.status = "jump";
this.y += 5;
} else {
if (this.status === "jump") {
this.status = "run";
}
}
}
// 入场
entrance() {
if (this.x < 120) this.x += 5;
}
}到此这篇关于利用pixi.js制作简单的跑酷小游戏的文章就介绍到这了,更多相关pixi.js跑酷游戏内容请搜索编程网以前的文章或继续浏览下面的相关文章希望大家以后多多支持编程网！
