755 lines
22 KiB
JavaScript
755 lines
22 KiB
JavaScript
(() => {
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const {
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Engine,
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Render,
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Runner,
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World,
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Body,
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Bodies,
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Constraint,
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Events,
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Query,
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Vector,
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} = Matter;
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const { scenes = [], defaultSceneId } = window.PhysilinksScenes || {};
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const config = {
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gravity: 1,
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spawnIntervalMs: 520,
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autoSpawn: true,
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minChain: 3,
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palette: ["#ff595e", "#ffca3a", "#8ac926", "#1982c4", "#6a4c93"],
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ballRadius: 18,
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link: {
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stiffness: 0.85,
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lengthScale: 1.05, // max stretch factor; slack below this
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damping: 0.08,
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lineWidth: 3,
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rope: true,
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renderType: "line",
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maxLengthMultiplier: 3.1,
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},
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};
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const ui = window.PhysilinksUI.create();
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const { sceneEl } = ui;
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let width = sceneEl.clientWidth;
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let height = sceneEl.clientHeight;
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const BALL_BASELINE = 680; // reference height used for relative ball sizing
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const engine = Engine.create();
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engine.gravity.y = config.gravity;
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const world = engine.world;
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const render = Render.create({
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element: sceneEl,
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engine,
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options: {
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width,
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height,
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wireframes: false,
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background: "transparent",
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showAngleIndicator: false,
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pixelRatio: window.devicePixelRatio || 1,
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},
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});
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Render.run(render);
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const runner = Runner.create();
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Runner.run(runner, engine);
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let runnerActive = true;
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const startRunner = () => {
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if (!runnerActive) {
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Runner.run(runner, engine);
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runnerActive = true;
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}
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};
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const stopRunner = () => {
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if (runnerActive) {
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Runner.stop(runner);
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runnerActive = false;
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}
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};
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// Static boundaries and scene-specific obstacles.
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let boundaries = [];
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let rotators = [];
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let currentScene =
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scenes.find((s) => s.id === defaultSceneId) || scenes[0] || null;
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if (currentScene && currentScene.config) {
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Object.assign(config, currentScene.config);
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config.link = { ...currentScene.config.link };
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}
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const rebuildSceneBodies = () => {
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boundaries.forEach((b) => World.remove(world, b));
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boundaries = currentScene.createBodies(width, height);
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rotators = boundaries.filter((b) => b.plugin && b.plugin.rotSpeed);
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World.add(world, boundaries);
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};
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const balls = [];
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let spawnTimer = null;
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let score = 0;
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let highScore = 0;
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let clearedCount = 0;
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let gameOver = false;
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let isPaused = false;
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let levelWon = false;
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const makeStorageKey = (sceneId) => `physilinks-highscore-${sceneId}`;
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const loadHighScore = (sceneId) => {
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try {
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const raw = localStorage.getItem(makeStorageKey(sceneId));
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const parsed = parseInt(raw, 10);
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return Number.isFinite(parsed) ? parsed : 0;
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} catch (err) {
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return 0;
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}
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};
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const saveHighScore = () => {
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try {
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localStorage.setItem(makeStorageKey(currentScene.id), String(highScore));
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} catch (err) {
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// ignore write failures (private mode or blocked storage)
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}
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};
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const applyScene = (sceneId) => {
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const next = scenes.find((s) => s.id === sceneId) || scenes[0];
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currentScene = next;
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ui.setSceneSelection(next.id);
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const prevRadius = config.ballRadius;
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Object.assign(config, next.config);
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config.link = { ...next.config.link };
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updateBallRadius(prevRadius);
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engine.gravity.y = config.gravity;
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clearedCount = 0;
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levelWon = false;
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highScore = loadHighScore(next.id);
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rebuildSceneBodies();
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buildLegend();
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restartGame();
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updateHud();
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};
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const getNextSceneId = () => {
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const winCond = currentScene?.config?.winCondition;
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if (winCond?.nextSceneId) return winCond.nextSceneId;
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const idx = scenes.findIndex((s) => s.id === currentScene?.id);
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if (idx >= 0 && idx < scenes.length - 1) return scenes[idx + 1].id;
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return scenes[0]?.id || defaultSceneId;
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};
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const chain = {
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active: false,
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color: null,
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bodies: [],
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constraints: [],
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pointer: null,
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};
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const getMaxLinkDistance = () => {
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const linkCfg = config.link || {};
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if (Number.isFinite(linkCfg.maxLinkLength)) {
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return linkCfg.maxLinkLength;
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}
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const mult = linkCfg.maxLengthMultiplier ?? 3;
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return mult * config.ballRadius;
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};
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const isGridScene = () =>
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currentScene && currentScene.config && currentScene.config.gridLayouts;
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const spawnBall = () => {
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if (gameOver) return;
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const color =
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config.palette[Math.floor(Math.random() * config.palette.length)];
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const x = Math.max(
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config.ballRadius + 10,
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Math.min(width - config.ballRadius - 10, Math.random() * width),
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);
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const y = -config.ballRadius * 2;
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const ball = Bodies.circle(x, y, config.ballRadius, {
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restitution: 0.72,
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friction: 0.01,
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frictionAir: 0.015,
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render: {
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fillStyle: color,
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strokeStyle: "#0b1222",
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lineWidth: 2,
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},
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});
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ball.plugin = { color, hasEntered: false, entryCheckId: null };
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balls.push(ball);
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World.add(world, ball);
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ball.plugin.entryCheckId = setTimeout(() => {
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ball.plugin.entryCheckId = null;
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if (gameOver) return;
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if (!ball.plugin.hasEntered && Math.abs(ball.velocity.y) < 0.2) {
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triggerGameOver();
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}
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}, 1500);
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};
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const startSpawner = () => {
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if (isGridScene()) return;
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if (currentScene?.config?.autoSpawn === false) return;
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if (spawnTimer) clearInterval(spawnTimer);
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spawnTimer = setInterval(spawnBall, config.spawnIntervalMs);
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};
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const stopSpawner = () => {
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if (spawnTimer) {
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clearInterval(spawnTimer);
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spawnTimer = null;
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}
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};
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const cleanupBall = (ball) => {
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if (ball.plugin && ball.plugin.entryCheckId) {
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clearTimeout(ball.plugin.entryCheckId);
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ball.plugin.entryCheckId = null;
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}
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};
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const getGridDimensions = () => {
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const padding = currentScene?.config?.gridPadding ?? 0.08;
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const usableW = width * (1 - padding * 2);
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const usableH = height * (1 - padding * 2);
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const gridSize = Math.min(usableW, usableH);
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const cellSize = gridSize / 8;
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const startX = (width - gridSize) / 2 + cellSize / 2;
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const startY = (height - gridSize) / 2 + cellSize / 2;
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return { cellSize, startX, startY };
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};
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const getGridColor = (letter) => {
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if (!letter || letter === "." || letter === " ") return null;
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const legend = currentScene?.config?.gridLegend || {};
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if (legend[letter]) return legend[letter];
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const paletteToUse = currentScene?.config?.palette || config.palette;
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const index =
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(letter.toUpperCase().charCodeAt(0) - 65) % paletteToUse.length;
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return paletteToUse[index];
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};
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const spawnGridBalls = () => {
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const layouts = currentScene?.config?.gridLayouts || [];
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if (!layouts.length) return;
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const layout = layouts[Math.floor(Math.random() * layouts.length)];
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if (!Array.isArray(layout)) return;
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const { cellSize, startX, startY } = getGridDimensions();
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const radius = computeBallRadius();
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config.ballRadius = radius;
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layout.forEach((row, rowIdx) => {
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if (typeof row !== "string") return;
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for (let colIdx = 0; colIdx < 8; colIdx += 1) {
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const letter = row[colIdx] || ".";
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const color = getGridColor(letter);
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if (!color) continue;
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const x = startX + colIdx * cellSize;
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const y = startY + rowIdx * cellSize;
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const ball = Bodies.circle(x, y, radius, {
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restitution: 0.12,
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friction: 0.01,
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frictionAir: 0.01,
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render: {
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fillStyle: color,
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strokeStyle: "#0b1222",
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lineWidth: 2,
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},
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});
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ball.plugin = { color, hasEntered: true, entryCheckId: null };
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balls.push(ball);
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World.add(world, ball);
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}
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});
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};
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const triggerGameOver = () => {
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if (gameOver) return;
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gameOver = true;
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isPaused = false;
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resetChainVisuals();
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stopSpawner();
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stopRunner();
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engine.timing.timeScale = 0;
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ui.setPauseState(false);
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ui.showGameOver(score);
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};
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const restartGame = () => {
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stopSpawner();
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gameOver = false;
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isPaused = false;
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levelWon = false;
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score = 0;
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clearedCount = 0;
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resetChainVisuals();
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balls.forEach((ball) => {
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cleanupBall(ball);
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World.remove(world, ball);
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});
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balls.length = 0;
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ui.hideGameOver();
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ui.hideWin();
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ui.setPauseState(false);
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engine.gravity.y = config.gravity;
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engine.timing.timeScale = 1;
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startRunner();
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updateHud();
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if (isGridScene()) {
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spawnGridBalls();
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} else {
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startSpawner();
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}
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};
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const setHighlight = (body, on) => {
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body.render.lineWidth = on ? 4 : 2;
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body.render.strokeStyle = on ? "#f8fafc" : "#0b1222";
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};
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const setPaused = (state) => {
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if (gameOver || levelWon) return;
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if (state === isPaused) return;
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isPaused = state;
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ui.setPauseState(isPaused);
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if (isPaused) {
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resetChainVisuals();
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stopSpawner();
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stopRunner();
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engine.timing.timeScale = 0;
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} else {
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startRunner();
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startSpawner();
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engine.timing.timeScale = 1;
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}
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};
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const resetChainVisuals = () => {
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chain.bodies.forEach((b) => setHighlight(b, false));
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chain.constraints.forEach((c) => World.remove(world, c));
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chain.active = false;
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chain.color = null;
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chain.bodies = [];
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chain.constraints = [];
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chain.pointer = null;
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updateHud();
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};
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const applyWinEffects = () => {
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const winCond = currentScene?.config?.winCondition;
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if (!winCond || !winCond.onWin) return;
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if (typeof winCond.onWin.setGravity === "number") {
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engine.gravity.y = winCond.onWin.setGravity;
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}
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};
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const checkWinCondition = () => {
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if (levelWon) return;
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const goal = getGoalState();
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ui.setGoal(goal || { label: "—", progress: 0 });
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if (!goal || !goal.met) return;
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applyWinEffects();
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levelWon = true;
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stopSpawner();
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engine.timing.timeScale = 1;
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startRunner();
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ui.setPauseState(false);
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ui.showWin(goal.label.replace("left", "done"));
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};
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const removeLastFromChain = () => {
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const removedConstraint = chain.constraints.pop();
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if (removedConstraint) {
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World.remove(world, removedConstraint);
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}
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const removedBody = chain.bodies.pop();
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if (removedBody) setHighlight(removedBody, false);
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updateHud();
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};
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const addToChain = (body) => {
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const last = chain.bodies[chain.bodies.length - 1];
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const dist = Vector.magnitude(Vector.sub(last.position, body.position));
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const linkCfg = config.link || {};
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const constraint = Constraint.create({
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bodyA: last,
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bodyB: body,
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length: dist * (linkCfg.lengthScale ?? 1),
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stiffness: linkCfg.stiffness ?? 0.9,
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damping: linkCfg.damping ?? 0,
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render: {
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strokeStyle: chain.color,
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lineWidth: linkCfg.lineWidth ?? 3,
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type: linkCfg.renderType || "line",
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},
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});
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constraint.plugin = {
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restLength: dist * (linkCfg.lengthScale ?? 1),
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rope: linkCfg.rope ?? false,
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baseStiffness: linkCfg.stiffness ?? 0.9,
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maxLength: dist * (linkCfg.lengthScale ?? 1),
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};
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chain.constraints.push(constraint);
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chain.bodies.push(body);
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setHighlight(body, true);
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World.add(world, constraint);
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updateHud();
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};
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const finishChain = (releasePoint) => {
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if (!chain.active || gameOver || isPaused) return;
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if (chain.bodies.length >= config.minChain) {
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const gain = 10 * Math.pow(chain.bodies.length, 2);
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score += gain;
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clearedCount += chain.bodies.length;
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if (score > highScore) {
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highScore = score;
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saveHighScore();
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}
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ui.spawnScorePopup(releasePoint || chain.pointer, gain, chain.color);
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chain.constraints.forEach((c) => World.remove(world, c));
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chain.bodies.forEach((body) => {
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cleanupBall(body);
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World.remove(world, body);
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});
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// Remove cleared balls from tracking list.
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for (let i = balls.length - 1; i >= 0; i -= 1) {
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if (chain.bodies.includes(balls[i])) {
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balls.splice(i, 1);
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}
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}
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} else {
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chain.constraints.forEach((c) => World.remove(world, c));
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chain.bodies.forEach((b) => setHighlight(b, false));
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}
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chain.active = false;
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chain.color = null;
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chain.bodies = [];
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chain.constraints = [];
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chain.pointer = null;
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updateHud();
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checkWinCondition();
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};
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const pickBody = (point) => {
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const hits = Query.point(balls, point);
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return hits[0];
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};
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const getPointerPosition = (evt) => {
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const rect = render.canvas.getBoundingClientRect();
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const clientX = evt.touches ? evt.touches[0].clientX : evt.clientX;
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const clientY = evt.touches ? evt.touches[0].clientY : evt.clientY;
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return {
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x: clientX - rect.left,
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y: clientY - rect.top,
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};
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};
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const handlePointerDown = (evt) => {
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if (gameOver || isPaused || levelWon) return;
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const point = getPointerPosition(evt);
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const body = pickBody(point);
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if (!body) return;
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chain.active = true;
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chain.color = body.plugin.color;
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chain.bodies = [body];
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chain.constraints = [];
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chain.pointer = point;
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setHighlight(body, true);
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updateHud();
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};
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const handlePointerMove = (evt) => {
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if (!chain.active) return;
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if (gameOver || isPaused || levelWon) return;
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const point = getPointerPosition(evt);
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chain.pointer = point;
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const body = pickBody(point);
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if (!body) return;
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const alreadyInChain = chain.bodies.includes(body);
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if (alreadyInChain) {
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const targetIndex = chain.bodies.indexOf(body);
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if (chain.bodies.length > 1 && targetIndex === chain.bodies.length - 2) {
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removeLastFromChain();
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}
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return;
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}
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if (body.plugin.color !== chain.color) return;
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const maxLinkDist = getMaxLinkDistance();
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const dist = Vector.magnitude(
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Vector.sub(chain.bodies[chain.bodies.length - 1].position, body.position),
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);
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if (dist > maxLinkDist) return;
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addToChain(body);
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};
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const handlePointerUp = () => finishChain(chain.pointer);
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render.canvas.addEventListener("mousedown", handlePointerDown);
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render.canvas.addEventListener("mousemove", handlePointerMove);
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window.addEventListener("mouseup", handlePointerUp);
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render.canvas.addEventListener(
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"touchstart",
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(e) => {
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e.preventDefault();
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handlePointerDown(e);
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},
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{ passive: false },
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);
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render.canvas.addEventListener(
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"touchmove",
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(e) => {
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e.preventDefault();
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handlePointerMove(e);
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},
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{ passive: false },
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);
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render.canvas.addEventListener(
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"touchend",
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(e) => {
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e.preventDefault();
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handlePointerUp(e);
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},
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{ passive: false },
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);
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const updateHud = () => {
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ui.updateHud({
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spawnIntervalMs: config.spawnIntervalMs,
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minChain: config.minChain,
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chainLength: chain.bodies.length,
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score,
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highScore,
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activeColor: chain.color,
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});
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const goal = getGoalState();
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ui.setGoal(goal || { label: "—", progress: 0 });
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};
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const buildLegend = () => {
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ui.buildLegend(config.palette);
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};
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const computeBallRadius = () => {
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if (isGridScene()) {
|
|
const padding = currentScene?.config?.gridPadding ?? 0.08;
|
|
const usableW = width * (1 - padding * 2);
|
|
const usableH = height * (1 - padding * 2);
|
|
const gridSize = Math.min(usableW, usableH);
|
|
const cellSize = gridSize / 8;
|
|
const scale = currentScene?.config?.gridBallScale ?? 0.36;
|
|
const scaled = cellSize * scale;
|
|
return Math.round(Math.max(10, Math.min(60, scaled)));
|
|
}
|
|
const baseRadius =
|
|
(currentScene && currentScene.config && currentScene.config.ballRadius) ||
|
|
config.ballRadius ||
|
|
18;
|
|
const dim = Math.max(1, Math.min(width, height));
|
|
const scaled = (baseRadius * dim) / BALL_BASELINE;
|
|
return Math.round(Math.max(12, Math.min(52, scaled)));
|
|
};
|
|
|
|
const updateBallRadius = (prevRadius) => {
|
|
const nextRadius = computeBallRadius();
|
|
if (
|
|
Number.isFinite(prevRadius) &&
|
|
prevRadius > 0 &&
|
|
nextRadius !== prevRadius
|
|
) {
|
|
const scale = nextRadius / prevRadius;
|
|
balls.forEach((ball) => {
|
|
Body.scale(ball, scale, scale);
|
|
ball.circleRadius = nextRadius;
|
|
});
|
|
}
|
|
config.ballRadius = nextRadius;
|
|
};
|
|
|
|
const getGoalState = () => {
|
|
const winCond = currentScene?.config?.winCondition;
|
|
if (!winCond) return null;
|
|
if (winCond.type === "clearCount") {
|
|
const target = winCond.target ?? 0;
|
|
const remaining = Math.max(0, target - clearedCount);
|
|
return {
|
|
label: `Clear ${target} balls (${remaining} left)`,
|
|
progress: target > 0 ? (100 * clearedCount) / target : 0,
|
|
met: clearedCount >= target,
|
|
};
|
|
}
|
|
if (winCond.type === "score") {
|
|
const target = winCond.target ?? 0;
|
|
const remaining = Math.max(0, target - score);
|
|
return {
|
|
label: `Score ${target} (${remaining} left)`,
|
|
progress: target > 0 ? (100 * score) / target : 0,
|
|
met: score >= target,
|
|
};
|
|
}
|
|
if (winCond.type === "colorClear" && Array.isArray(winCond.targets)) {
|
|
const target = winCond.targets.reduce(
|
|
(sum, t) => sum + (t.count || 0),
|
|
0,
|
|
);
|
|
return {
|
|
label: "Clear target colors",
|
|
progress: target > 0 ? (100 * clearedCount) / target : 0,
|
|
met: false,
|
|
};
|
|
}
|
|
return null;
|
|
};
|
|
|
|
const clampBodiesIntoView = (prevWidth, prevHeight) => {
|
|
const scaleX = width / (prevWidth || width);
|
|
const scaleY = height / (prevHeight || height);
|
|
const margin = config.ballRadius * 1.2;
|
|
balls.forEach((ball) => {
|
|
const nextX = Math.min(
|
|
Math.max(ball.position.x * scaleX, margin),
|
|
Math.max(margin, width - margin),
|
|
);
|
|
const nextY = Math.min(
|
|
ball.position.y * scaleY,
|
|
Math.max(height - margin, margin),
|
|
);
|
|
Body.setPosition(ball, { x: nextX, y: nextY });
|
|
Body.setVelocity(ball, { x: 0, y: 0 });
|
|
});
|
|
resetChainVisuals();
|
|
};
|
|
|
|
const handleResize = () => {
|
|
const prevWidth = width;
|
|
const prevHeight = height;
|
|
const prevRadius = config.ballRadius;
|
|
width = sceneEl.clientWidth;
|
|
height = sceneEl.clientHeight;
|
|
const pixelRatio = window.devicePixelRatio || 1;
|
|
render.options.width = width;
|
|
render.options.height = height;
|
|
render.options.pixelRatio = pixelRatio;
|
|
render.canvas.style.width = `${width}px`;
|
|
render.canvas.style.height = `${height}px`;
|
|
render.canvas.width = width * pixelRatio;
|
|
render.canvas.height = height * pixelRatio;
|
|
Render.setPixelRatio(render, pixelRatio);
|
|
render.bounds.min.x = 0;
|
|
render.bounds.min.y = 0;
|
|
render.bounds.max.x = width;
|
|
render.bounds.max.y = height;
|
|
Render.lookAt(render, render.bounds);
|
|
updateBallRadius(prevRadius);
|
|
clampBodiesIntoView(prevWidth, prevHeight);
|
|
rebuildSceneBodies();
|
|
};
|
|
|
|
Events.on(engine, "afterUpdate", () => {
|
|
// Keep stray balls within the play area horizontally.
|
|
balls.forEach((ball) => {
|
|
if (
|
|
!ball.plugin.hasEntered &&
|
|
ball.position.y > config.ballRadius * 1.5
|
|
) {
|
|
ball.plugin.hasEntered = true;
|
|
}
|
|
if (
|
|
ball.position.x < -100 ||
|
|
ball.position.x > width + 100 ||
|
|
ball.position.y > height + 500
|
|
) {
|
|
cleanupBall(ball);
|
|
ball.plugin.hasEntered = true;
|
|
Matter.Body.setPosition(ball, { x: Math.random() * width, y: -40 });
|
|
Matter.Body.setVelocity(ball, { x: 0, y: 0 });
|
|
}
|
|
});
|
|
});
|
|
|
|
Events.on(engine, "beforeUpdate", () => {
|
|
// Rope-like constraint handling: allow shortening without push-back, tension when stretched.
|
|
chain.constraints.forEach((c) => {
|
|
if (!c.plugin || !c.plugin.rope) return;
|
|
const current = Vector.magnitude(
|
|
Vector.sub(c.bodyA.position, c.bodyB.position),
|
|
);
|
|
const maxLen = c.plugin.maxLength ?? c.length;
|
|
if (current <= maxLen) {
|
|
c.length = current;
|
|
c.stiffness = 0;
|
|
} else {
|
|
c.length = maxLen;
|
|
c.stiffness = c.plugin.baseStiffness ?? c.stiffness;
|
|
}
|
|
});
|
|
// Rotate any scene rotators slowly.
|
|
const dt = (engine.timing && engine.timing.delta) || 16;
|
|
const timeScale = engine.timing?.timeScale ?? 1;
|
|
if (isPaused || gameOver || timeScale === 0) return;
|
|
rotators.forEach((b) => {
|
|
const speed = b.plugin.rotSpeed || 0;
|
|
if (speed !== 0) {
|
|
Body.rotate(b, speed * ((dt * timeScale) / 1000));
|
|
}
|
|
});
|
|
});
|
|
|
|
Events.on(render, "afterRender", () => {
|
|
if (!chain.active || !chain.pointer || chain.bodies.length === 0) return;
|
|
const last = chain.bodies[chain.bodies.length - 1];
|
|
const ctx = render.context;
|
|
const maxLinkDist = getMaxLinkDistance();
|
|
const delta = Vector.sub(chain.pointer, last.position);
|
|
const dist = Vector.magnitude(delta);
|
|
// Pull back the preview line slightly so it does not suggest a link will land on a too-distant ball.
|
|
const previewMargin = config.ballRadius;
|
|
const cappedDist = Math.max(
|
|
0,
|
|
Math.min(dist, Math.max(0, maxLinkDist - previewMargin)),
|
|
);
|
|
const safeTarget =
|
|
dist > 0
|
|
? Vector.add(
|
|
last.position,
|
|
Vector.mult(Vector.normalise(delta), cappedDist),
|
|
)
|
|
: chain.pointer;
|
|
ctx.save();
|
|
ctx.strokeStyle = chain.color || "#fff";
|
|
ctx.lineWidth = 3;
|
|
ctx.setLineDash([6, 6]);
|
|
ctx.beginPath();
|
|
ctx.moveTo(last.position.x, last.position.y);
|
|
ctx.lineTo(safeTarget.x, safeTarget.y);
|
|
ctx.stroke();
|
|
ctx.restore();
|
|
});
|
|
|
|
window.addEventListener("resize", handleResize);
|
|
ui.setHandlers({
|
|
onPauseToggle: () => setPaused(!isPaused),
|
|
onRestart: restartGame,
|
|
onSceneChange: (id) => applyScene(id),
|
|
onWinNext: () => applyScene(getNextSceneId()),
|
|
});
|
|
ui.setSceneOptions(
|
|
scenes,
|
|
(currentScene && currentScene.id) || defaultSceneId,
|
|
);
|
|
updateBallRadius();
|
|
applyScene((currentScene && currentScene.id) || defaultSceneId);
|
|
})();
|