pixiJS 點擊方法問題

pixijs pixijs click-event

gior__ann 2021-04-19 17:28:08 ‧ 839 瀏覽

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各位大大好~

想要透過pixiJS畫長方形當作按鈕
照著文檔的方式去做一直沒成功

會出現下面的錯誤

結果我的app console出來顯示的 ~不知道為甚麼不是 Application

然後去官方的範例看卻是正常的Application
https://pixijs.io/examples/#/events/click.js

我的程式碼是照著這個範例去練習的
https://github.com/Zainking/LearningPixi/blob/master/examples/17_treasureHunter.html

求解，是不是哪邊宣告的方式錯誤了~找不太到原因

[新增程式碼 2021/4/21~更新]

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>PixiJS</title>

    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box !important;
        }

        body {
            overflow: hidden;
        }
    </style>
</head>

<body>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/pixi.js/5.1.3/pixi.min.js"></script>
    <script type="text/javascript">
        let type = "WebGL"
        if (!PIXI.utils.isWebGLSupported()) {
            type = "canvas"
        }

        PIXI.utils.sayHello(type);



        // 宣告自定義名稱簡化 PIXI function
        let Application = PIXI.Application,
            Container = PIXI.Container,
            loader = new PIXI.Loader(),
            resources = loader.resources,
            TextureCache = PIXI.utils.TextureCache,
            Sprite = PIXI.Sprite,
            Rectangle = PIXI.Rectangle;


        // 畫布設定
        let app = new PIXI.Application({
            width: 512,
            height: 512,
            antialias: true, // 抗鋸齒
            transparent: false, //是否透明背景
            resolution: 1, // 解析度
            backgroundColor: 0x000000, // 背景色
            autoResize: true
        })

        document.body.appendChild(app.view);


        // 載入資源
        loader.add('images/treasureHunter.json').load(setup);

        let dungeon, explorer, treasure, door, id, state, chimes, exit, player, healthBar, message, gameScene, gameOverScene, enemies, blobs;

        function setup() {

            // 遊戲初始化設定


            // 1.創建場景概念 (群組歸類)
            gameScene = new Container();
            app.stage.addChild(gameScene);


            // 2.建立場景上的所有物件
            id = resources['images/treasureHunter.json'].textures;

            dungeon = new Sprite(id['dungeon.png']);
            gameScene.addChild(dungeon);

            door = new Sprite(id['door.png']);
            door.position.set(32, 0);
            gameScene.addChild(door);

            explorer = new Sprite(id['explorer.png']);
            explorer.x = 68;
            explorer.y = gameScene.height / 2 - explorer.height / 2;
            explorer.vx = 0; // x軸速度
            explorer.vy = 0; // y軸速度
            gameScene.addChild(explorer);

            treasure = new Sprite(id['treasure.png']);
            treasure.x = gameScene.width - treasure.width - 48;
            treasure.y = gameScene.height / 2 - treasure.height / 2;
            gameScene.addChild(treasure);


            let numOfBlobs = 6,
                spacing = 48, // 怪物之間的間隔
                xOffset = 150, // x軸 開始位置
                speed = 2,
                direction = 1;

            blobs = [];

            for (let i = 0; i < numOfBlobs; i++) {
                let blob = new Sprite(id['blob.png']);
                let x = spacing * i + xOffset;
                let y = randomInt(0, app.stage.height - blob.height);

                blob.x = x;
                blob.y = y;

                blob.vy = speed * direction;
                direction *= -1; // 一開始讓精靈怪物間隔的往上或往下跑 >> 1,3,5 (往下) 2,4,6(往上)
                blobs.push(blob);

                gameScene.addChild(blob);
            }


            healthBar = new Container();
            healthBar.position.set(app.stage.width - 170, 4);
            gameScene.addChild(healthBar);

            let innerBar = new PIXI.Graphics(); // pixi 繪製圖形方法
            innerBar.beginFill(0x000000);
            innerBar.drawRect(0, 0, 128, 15);
            innerBar.endFill();
            healthBar.addChild(innerBar);

            let outerBar = new PIXI.Graphics();
            outerBar.beginFill(0xFF3300);
            outerBar.drawRect(0, 0, 128, 15);
            innerBar.endFill();
            healthBar.addChild(outerBar);
            healthBar.outer = outerBar;

            gameOverScene = new Container();
            app.stage.addChild(gameOverScene);
            gameOverScene.visible = false;

            let style = new PIXI.TextStyle({
                fontFamily: 'Futura',
                fontSize: 64,
                fill: 'white'
            });

            message = new PIXI.Text('The End!', style);
            message.x = 120;
            message.y = app.stage.height / 2 - 32;
            gameOverScene.addChild(message);


            // 處理鍵盤事件該做甚麼
            let left = keyboard(37),
                up = keyboard(38),
                right = keyboard(39),
                down = keyboard(40);

            left.press = function () {
                explorer.vx = -5;
                explorer.vy = 0;
            }

            left.release = function () {
                if (!right.isDown && explorer.vy === 0) {
                    explorer.vx = 0;
                }
            }

            up.press = function () {
                explorer.vy = -5;
                explorer.vx = 0;
            }

            up.release = function () {
                if (!down.isDown && explorer.vx === 0) {
                    explorer.vy = 0;
                }
            }

            right.press = function () {
                explorer.vx = 5;
                explorer.vy = 0;
            }

            right.release = function () {
                if (!left.isDown && explorer.vy === 0) {
                    explorer.vx = 0;
                }
            }

            down.press = function () {
                explorer.vy = 5;
                explorer.vx = 0;
            }

            down.release = function () {
                if (!up.isDown && explorer.vx === 0) {
                    explorer.vy = 0;
                }
            }

            state = play;
            // 動畫處理(精靈怪物動起來)
            // ticker 每秒更新60次

            app.ticker.add(delta => {
                gameLoop(delta);
            });


        }

        function randomInt(min, max) {
            return Math.floor(Math.random() * (max - min + 1)) + min;
        }

        function gameLoop(delta) {
            // update 遊戲狀態
            state(delta);
        }

        function play(delta) {
            explorer.x += explorer.vx;
            explorer.y += explorer.vy;

            contain(explorer, { x: 28, y: 10, width: 488, height: 488 });

            let explorerHit = false;

            blobs.forEach(blob => {
                blob.y += blob.vy;

                let blobHitWall = contain(blob, { x: 28, y: 10, width: 488, height: 488 });

                if (blobHitWall === 'top' || blobHitWall === 'bottom') {
                    blob.vy *= -1;
                }

                if (hitTestRectangle(explorer, blob)) {
                    explorerHit = true;
                }
            });


            // 判斷有無碰撞怪物 並作相對應的動作
            if (explorerHit) {
                explorer.alpha = 0.5;
                healthBar.outer.width -= 1;
            } else {
                explorer.alpha = 1;
            }

            // 判斷有無碰寶箱 並作相對應的動作
            if (hitTestRectangle(explorer, treasure)) {
                // 寶箱跟著玩家走
                treasure.x = explorer.x + 8;
                treasure.y = explorer.y + 8;
            }

            if (healthBar.outer.width < 0) {
                state = end;
                message.text = "Game Over!";
            }

            if (hitTestRectangle(treasure, door)) {
                state = end;
                message.text = "you won!";
            }
        }

        function end() {
            // 場景切換
            gameScene.visible = false;
            gameOverScene.visible = true;
        }


        function contain(sprite, container) {
            let collision = undefined;

            if (sprite.x < container.x) {
                sprite.x = container.x;
                collision = 'left';
            }

            if (sprite.y < container.y) {
                sprite.y = container.y;
                collision = 'top';
            }

            if (sprite.x + sprite.width > container.width) {
                sprite.x = container.width - sprite.width;
                collision = 'right';
            }

            if (sprite.y + sprite.height > container.height) {
                sprite.y = container.height - sprite.height;
                collision = 'bottom';
            }

            return collision;
        }


        function hitTestRectangle(r1, r2) {
            let hit, combineHalfWidths, combineHalfHeights, vx, vy;
            hit = false;

            r1.centerX = r1.x + r1.width / 2;
            r1.centerY = r1.y + r1.height / 2;
            r2.centerX = r2.x + r2.width / 2;
            r2.centerY = r2.y + r2.height / 2;

            r1.halfWidth = r1.width / 2;
            r1.halfHeight = r1.height / 2;
            r2.halfWidth = r2.width / 2;
            r2.halfHeight = r2.height / 2;


            vx = r1.centerX - r2.centerX;
            vy = r1.centerY - r2.centerY;

            combineHalfWidths = r1.halfWidth + r2.halfWidth;
            combineHalfHeights = r1.halfHeight + r2.halfHeight;

            if (Math.abs(vx) < combineHalfWidths) {
                if (Math.abs(vy) < combineHalfHeights) {
                    hit = true;
                } else {
                    hit = false;
                }
            } else {
                hit = false;
            }

            return hit;
        }


        function keyboard(keyCode) {

            var key = {};
            key.code = keyCode;
            key.isDown = false;
            key.isUp = true;
            key.press = undefined;
            key.release = undefined;

            key.downHandler = function (event) {
                if (event.keyCode === key.code) {
                    if (key.isUp && key.press) key.press();
                    key.isDown = true;
                    key.isUp = false;
                }
                event.preventDefault();
            }

            key.upHandler = function (event) {
                if (event.keyCode === key.code) {
                    if (key.isDown && key.release) key.release();
                    key.isDown = false;
                    key.isUp = true;
                }
                event.preventDefault();
            }

            window.addEventListener('keydown', key.downHandler.bind(key), false);
            window.addEventListener('keyup', key.upHandler.bind(key), false);



            return key;
        }



    </script>
</body>

</html>