Press n or j to go to the next uncovered block, b, p or k for the previous block.
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import { Plugin } from '../../model/plugin';
import { Mod } from '../../model/tag';
import { Template } from '../../model/template';
import { RootConfig } from '../root';
const jezzballLabels = {
savedExample: $localize`Saved example`,
savedExampleTitle: $localize`This Ref is read-only; progress will not be saved.`,
pause: $localize`⏸️`,
resume: $localize`⏯️`,
slow: $localize`🐢`,
fast: $localize`🐇`,
soundOn: $localize`🔊`,
soundOff: $localize`🔇`,
newGame: $localize`New game`,
continue: $localize`Continue`,
confirmNewGame: $localize`This will clear your high score of {score}. Start a new game?`,
level: $localize`Level: {level}`,
lives: $localize`Lives: {lives}`,
filled: $localize`Area Cleared: {filled}%`,
time: $localize`Time Left: {time}`,
score: $localize`Score: {score}`,
wallVertical: $localize`↕`,
wallHorizontal: $localize`↔`,
levelComplete: $localize`Level {level} complete`,
gameOver: $localize`Game over · score {score}`,
finalScore: $localize`Final score {score}`,
help: $localize`Click, press Enter, or tap with two fingers to build a wall. Two-finger alignment sets its direction. Use the arrow keys to move the keyboard cursor. Right-click, Space, or the direction button changes direction. Press P to pause.`,
};
const jezzballLabelsSource = JSON.stringify(jezzballLabels).replace(/</g, '\\u003c');
const scorePlugin: Plugin = {
tag: 'plugin/score',
name: $localize`🏆️ Score`,
config: {
mod: $localize`🟣️ JezzBall`,
version: 1,
type: 'plugin',
generated: $localize`Generated by jasper-ui ${DateTime.now().toISO()}`,
description: $localize`Store a numeric score on a Ref.`,
sorts: [
{ sort: 'plugins->plugin/score:num', label: $localize`🏆️ score`, title: $localize`Score` },
],
},
defaults: 0,
schema: { type: 'float64' },
};
export const jezzballPlugin: Plugin = {
tag: 'plugin/jezzball',
name: $localize`🟣️ JezzBall`,
config: {
mod: $localize`🟣️ JezzBall`,
version: 1,
type: 'plugin',
editingViewer: true,
experimental: true,
submitText: true,
add: true,
genId: true,
export: true,
generated: $localize`Generated by jasper-ui ${DateTime.now().toISO()}`,
description: $localize`Play a faithful remake of the classic JezzBall game.`,
icons: [{ label: $localize`🟣️`, order: 2 }],
filters: [
{ query: 'plugin/jezzball', label: $localize`🟣️ JezzBall`, title: $localize`JezzBall games`, group: $localize`Games 🕹️` },
],
// language=Handlebars
infoUi: `{{#if final}}{{#if (lookup ref.plugins "plugin/score")}}<span class="jezzball-final-score">🏆️ {{number (lookup ref.plugins "plugin/score")}}</span>{{/if}}{{/if}}`,
// language=CSS
css: `
.jezzball-game {
display: block;
width: min(100%, 850px);
margin: 0 auto;
color: var(--text, #ddd);
font: 14px system-ui, sans-serif;
font-weight: bold;
outline: none;
}
.jezzball-game * {
box-sizing: border-box;
}
.jezzball-toolbar {
display: flex;
align-items: center;
gap: 12px;
min-height: 46px;
padding: 8px 4px;
}
.jezzball-toolbar .jezzball-level {
font-weight: 600;
white-space: nowrap;
}
.jezzball-level, .jezzball-stat, .jezzball-final-score {
font-variant-numeric: tabular-nums;
}
.jezzball-stat {
position: absolute;
z-index: 1;
color: #eee;
white-space: nowrap;
pointer-events: none;
text-shadow: 0 1px 2px #000;
}
.jezzball-lives {
top: 8px;
left: 10px;
}
.jezzball-center {
position: absolute;
z-index: 1;
top: 8px;
left: 50%;
display: flex;
transform: translateX(-50%);
}
.jezzball-center .jezzball-stat {
position: static;
}
.jezzball-time {
top: 8px;
right: 10px;
}
.jezzball-filled {
bottom: 8px;
left: 50%;
transform: translateX(-50%);
}
.jezzball-example {
color: #e7b85b;
font-weight: 600;
}
.jezzball-controls {
display: flex;
gap: 8px;
margin-left: auto;
}
.jezzball-controls button, .jezzball-overlay button {
border: 1px solid var(--border, #777);
border-radius: 4px;
background: var(--card, #333);
color: var(--text, #eee);
padding: 5px 9px;
cursor: pointer;
}
.jezzball-controls button:hover, .jezzball-overlay button:hover {
background: var(--active, #4a4a4a);
}
.jezzball-stage {
position: relative;
width: 100%;
padding: 34px;
overflow: hidden;
filter: drop-shadow(0px 0px .5px #ffffff);
border-radius: 8px;
background: #000;
touch-action: none;
}
.jezzball-canvas {
display: block;
width: 100%;
height: auto;
aspect-ratio: 4 / 3;
}
.jezzball-canvas.vertical {
cursor: ns-resize;
}
.jezzball-canvas.horizontal {
cursor: ew-resize;
}
.jezzball-overlay {
position: absolute;
inset: 0;
display: none;
place-content: center;
text-align: center;
background: rgba(0, 0, 0, .72);
color: white;
}
.jezzball-overlay.visible {
display: grid;
}
.jezzball-overlay strong {
display: block;
margin-bottom: 12px;
font-size: 24px;
}
.embed:fullscreen > .plugin_jezzball {
zoom: 50%;
margin: 0 auto;
}
:fullscreen .jezzball-game {
width: min(100vw, calc((100vh - 114px) * 4 / 3 + 68px));
max-width: none;
}
:fullscreen .jezzball-controls {
display: none;
}
@media (prefers-color-scheme: light) {
.jezzball-game {
color: var(--text, #333);
}
.jezzball-controls button, .jezzball-overlay button {
background: var(--card, #eee);
color: var(--text, #222);
border-color: var(--border, #999);
}
.jezzball-controls button:hover, .jezzball-overlay button:hover {
background: var(--active, #ddd);
}
}
`,
// language=HTML
snippet: `
<script>
function jezzballApp(root, api) {
if (!root) return function() {};
if (root._jezzballDestroy) {
root._jezzballDestroy();
root.removeAttribute('data-game-session');
}
const COLS = 32;
const ROWS = 24;
const CELL = 25;
const TARGET = 75;
const MAX_BALLS = 50;
const WALL_STEP_SLOW = 0.1;
const WALL_STEP_FAST = 0.05;
const BALL_RADIUS = 0.34;
const LEVEL_SECONDS = 120;
const labels = ${jezzballLabelsSource};
const initial = api && api.initial && typeof api.initial === 'object' ? api.initial : {};
const writable = !api || api.writable !== false;
let savedMap = api.comment;
let level = Number.isSafeInteger(initial.level) && initial.level > 0 ? initial.level : 1;
let score = Number.isFinite(api.score) && api.score >= 0 ? Math.floor(api.score) : 0;
let lives = Number.isSafeInteger(initial.lives) && initial.lives >= 0 ? initial.lives : 3;
let remaining = Number.isFinite(initial.time) && initial.time >= 0 ?
Math.min(initial.time, LEVEL_SECONDS) : LEVEL_SECONDS;
let checkpoint = {
level: level,
lives: lives,
time: remaining,
area: Number.isSafeInteger(initial.area) && initial.area >= 0 && initial.area <= 100 ? initial.area : 0,
final: !!initial.final,
};
let occupied = new Uint8Array(COLS * ROWS);
let balls = [];
let wall = null;
let orientation = 'vertical';
let wallSpeed = 'fast';
let sound = true;
let audioContext = null;
let running = !checkpoint.final;
let paused = false;
let last = 0;
let wallClock = 0;
let frame = 0;
let finalSaved = false;
let keyboardMode = false;
const keyboardCursor = { x: Math.floor(COLS / 2), y: Math.floor(ROWS / 2) };
const canvas = root.querySelector('.jezzball-canvas');
const g = canvas.getContext('2d', { alpha: false });
const levelEl = root.querySelector('.jezzball-level');
const livesEl = root.querySelector('.jezzball-lives');
const filledEl = root.querySelector('.jezzball-filled');
const timeEl = root.querySelector('.jezzball-time');
const scoreEl = root.querySelector('.jezzball-score');
const exampleEl = root.querySelector('.jezzball-example');
const directionButton = root.querySelector('.jezzball-direction');
const speedButton = root.querySelector('.jezzball-speed');
const soundButton = root.querySelector('.jezzball-sound');
const pauseButton = root.querySelector('.jezzball-pause');
const overlay = root.querySelector('.jezzball-overlay');
const overlayMessage = overlay.querySelector('strong');
const newGameButton = overlay.querySelector('.jezzball-new-game');
root.setAttribute('aria-label', labels.help);
exampleEl.textContent = labels.savedExample;
exampleEl.title = labels.savedExampleTitle;
exampleEl.hidden = writable;
pauseButton.textContent = labels.pause;
function format(label, values) {
return label.replace(/\\{(\\w+)\\}/g, function(match, key) {
return Object.prototype.hasOwnProperty.call(values, key) ? values[key] : match;
});
}
function id(x, y) {
return x + y * COLS;
}
function parseMap(map) {
if (typeof map !== 'string') return null;
const rows = map.split('\\n');
if (rows.length !== ROWS || rows.some(row => row.length !== COLS || /[^.#12o]/.test(row))) return null;
return rows;
}
function serializeMap(includeWall) {
const cells = Array.from({ length: ROWS }, function(_, y) {
return Array.from({ length: COLS }, function(_, x) {
return occupied[id(x, y)] ? '#' : '.';
});
});
if (includeWall && wall) {
for (const half of [wall.negative, wall.positive]) {
if (half.destroyed) continue;
for (const cellId of half.cells) {
cells[Math.floor(cellId / COLS)][cellId % COLS] = String(half.color);
}
}
}
for (const ball of balls) {
const ballX = Math.max(0, Math.min(COLS - 1, Math.floor(ball.x)));
const ballY = Math.max(0, Math.min(ROWS - 1, Math.floor(ball.y)));
let saved = false;
for (let radius = 0; radius < Math.max(COLS, ROWS) && !saved; radius++) {
for (let y = Math.max(0, ballY - radius); y <= Math.min(ROWS - 1, ballY + radius) && !saved; y++) {
for (let x = Math.max(0, ballX - radius); x <= Math.min(COLS - 1, ballX + radius); x++) {
if (Math.max(Math.abs(x - ballX), Math.abs(y - ballY)) !== radius || cells[y][x] !== '.') continue;
cells[y][x] = 'o';
saved = true;
break;
}
}
}
}
return cells.map(row => row.join('')).join('\\n');
}
function emptyMap() {
return Array(ROWS).fill('.'.repeat(COLS)).join('\\n');
}
function isOccupied(x, y) {
return x < 0 || y < 0 || x >= COLS || y >= ROWS || occupied[id(x, y)] !== 0;
}
function cellBlocked(x, y) {
if (isOccupied(x, y)) return true;
const cellId = id(x, y);
return !!(wall && (wall.negative.cells.has(cellId) || wall.positive.cells.has(cellId)));
}
function randomVelocity() {
const component = ballSpeed() / Math.SQRT2;
return {
vx: component * (Math.random() < 0.5 ? -1 : 1),
vy: component * (Math.random() < 0.5 ? -1 : 1),
};
}
function ballSpeed() {
const wallStep = wallSpeed === 'slow' ? WALL_STEP_SLOW : WALL_STEP_FAST;
return 1 / (wallStep * 2);
}
function placeBalls() {
balls = [];
for (let i = 0; i < Math.min(level + 1, MAX_BALLS); i++) {
const velocity = randomVelocity();
let x;
let y;
let attempts = 0;
do {
x = 2 + Math.random() * (COLS - 4);
y = 2 + Math.random() * (ROWS - 4);
attempts++;
} while (balls.some(ball => Math.hypot(ball.x - x, ball.y - y) < 2) && attempts < 100);
balls.push({ x: x, y: y, vx: velocity.vx, vy: velocity.vy, spin: Math.random() * Math.PI * 2 });
}
}
function restoreBalls() {
const map = parseMap(savedMap);
if (!map) return false;
const positions = [];
for (let y = 0; y < ROWS; y++) {
for (let x = 0; x < COLS; x++) {
if (map[y][x] === 'o') positions.push({ x: x + 0.5, y: y + 0.5 });
}
}
if (!positions.length) return false;
balls = positions.map(function(position) {
const velocity = randomVelocity();
return { x: position.x, y: position.y, vx: velocity.vx, vy: velocity.vy, spin: Math.random() * Math.PI * 2 };
});
return true;
}
function resetLevel() {
occupied = new Uint8Array(COLS * ROWS);
savedMap = emptyMap();
wall = null;
remaining = LEVEL_SECONDS;
paused = false;
running = true;
finalSaved = false;
overlay.classList.remove('visible');
pauseButton.textContent = labels.pause;
placeBalls();
lives = balls.length;
updateHud();
}
function percentFilled() {
if (checkpoint.final || overlay.classList.contains('visible')) return checkpoint.area;
let count = 0;
for (const value of occupied) {
if (value) count++;
}
return Math.floor(count * 100 / occupied.length);
}
function updateHud() {
levelEl.textContent = format(labels.level, { level: level });
livesEl.textContent = format(labels.lives, { lives: Math.max(0, lives) });
filledEl.textContent = format(labels.filled, { filled: percentFilled() });
timeEl.textContent = format(labels.time, { time: Math.max(0, Math.ceil(remaining)) });
scoreEl.textContent = format(labels.score, { score: score });
directionButton.textContent = orientation === 'vertical' ? labels.wallVertical : labels.wallHorizontal;
speedButton.textContent = wallSpeed === 'slow' ? labels.slow : labels.fast;
soundButton.textContent = sound ? labels.soundOn : labels.soundOff;
canvas.classList.toggle('vertical', orientation === 'vertical');
canvas.classList.toggle('horizontal', orientation === 'horizontal');
}
function toggleOrientation() {
orientation = orientation === 'vertical' ? 'horizontal' : 'vertical';
updateHud();
}
function toggleSpeed() {
wallSpeed = wallSpeed === 'slow' ? 'fast' : 'slow';
const component = ballSpeed() / Math.SQRT2;
for (const ball of balls) {
ball.vx = Math.sign(ball.vx) * component;
ball.vy = Math.sign(ball.vy) * component;
}
updateHud();
}
function toggleSound() {
sound = !sound;
updateHud();
}
function playSound(frequency, duration) {
if (!sound) return;
const AudioContext = window.AudioContext || window.webkitAudioContext;
if (!AudioContext) return;
audioContext = audioContext || new AudioContext();
if (audioContext.state === 'suspended') audioContext.resume();
const oscillator = audioContext.createOscillator();
const gain = audioContext.createGain();
oscillator.frequency.value = frequency;
gain.gain.setValueAtTime(0.04, audioContext.currentTime);
gain.gain.exponentialRampToValueAtTime(0.001, audioContext.currentTime + duration);
oscillator.connect(gain);
gain.connect(audioContext.destination);
oscillator.start();
oscillator.stop(audioContext.currentTime + duration);
}
function startWall(x, y) {
x = Math.floor(x);
y = Math.floor(y);
if (!running || paused || wall || cellBlocked(x, y)) return;
if (balls.some(ball => circleTouchesCell(ball.x, ball.y, x, y))) return;
wall = {
orientation: orientation,
origin: { x: x, y: y },
negative: { x: x, y: y, done: false, destroyed: false, color: 2, cells: new Set([id(x, y)]) },
positive: { x: x, y: y, done: false, destroyed: false, color: 1, cells: new Set([id(x, y)]) },
};
wallClock = 0;
playSound(260, 0.04);
}
function circleTouchesCell(x, y, cellX, cellY) {
const closestX = Math.max(cellX, Math.min(x, cellX + 1));
const closestY = Math.max(cellY, Math.min(y, cellY + 1));
return Math.hypot(x - closestX, y - closestY) <= BALL_RADIUS;
}
function extendEnd(end, direction) {
if (!wall || end.done || end.destroyed) return false;
const dx = wall.orientation === 'horizontal' ? direction : 0;
const dy = wall.orientation === 'vertical' ? direction : 0;
const nx = end.x + dx;
const ny = end.y + dy;
if (isOccupied(nx, ny)) {
end.done = true;
const sibling = end === wall.negative ? wall.positive : wall.negative;
for (const cellId of end.cells) {
occupied[cellId] = 3;
sibling.cells.delete(cellId);
}
end.cells.clear();
return false;
}
end.x = nx;
end.y = ny;
end.cells.add(id(nx, ny));
return true;
}
function fillCapturedAreas() {
const reachable = new Uint8Array(COLS * ROWS);
const queue = [];
for (const ball of balls) {
const minX = Math.max(0, Math.floor(ball.x - BALL_RADIUS));
const maxX = Math.min(COLS - 1, Math.floor(ball.x + BALL_RADIUS));
const minY = Math.max(0, Math.floor(ball.y - BALL_RADIUS));
const maxY = Math.min(ROWS - 1, Math.floor(ball.y + BALL_RADIUS));
for (let y = minY; y <= maxY; y++) {
for (let x = minX; x <= maxX; x++) {
const ballId = id(x, y);
if (!occupied[ballId] && !reachable[ballId] && circleTouchesCell(ball.x, ball.y, x, y)) {
reachable[ballId] = 1;
queue.push(ballId);
}
}
}
}
for (let head = 0; head < queue.length; head++) {
const current = queue[head];
const x = current % COLS;
const y = Math.floor(current / COLS);
const neighbors = [[x - 1, y], [x + 1, y], [x, y - 1], [x, y + 1]];
for (const neighbor of neighbors) {
const nx = neighbor[0];
const ny = neighbor[1];
if (nx < 0 || ny < 0 || nx >= COLS || ny >= ROWS) continue;
const neighborId = id(nx, ny);
if (!occupied[neighborId] && !reachable[neighborId]) {
reachable[neighborId] = 1;
queue.push(neighborId);
}
}
}
for (let i = 0; i < occupied.length; i++) {
if (!occupied[i] && !reachable[i]) occupied[i] = 3;
}
}
function pushBallsOutOfWalls() {
for (const ball of balls) {
if (!hitsBoard(ball.x, ball.y)) continue;
const candidates = [];
const minX = Math.max(0, Math.floor(ball.x - BALL_RADIUS));
const maxX = Math.min(COLS - 1, Math.floor(ball.x + BALL_RADIUS));
const minY = Math.max(0, Math.floor(ball.y - BALL_RADIUS));
const maxY = Math.min(ROWS - 1, Math.floor(ball.y + BALL_RADIUS));
for (let y = minY; y <= maxY; y++) {
for (let x = minX; x <= maxX; x++) {
if (!occupied[id(x, y)] || !circleTouchesCell(ball.x, ball.y, x, y)) continue;
candidates.push(
{ x: x - BALL_RADIUS - 0.001, y: ball.y },
{ x: x + 1 + BALL_RADIUS + 0.001, y: ball.y },
{ x: ball.x, y: y - BALL_RADIUS - 0.001 },
{ x: ball.x, y: y + 1 + BALL_RADIUS + 0.001 },
{ x: x - BALL_RADIUS - 0.001, y: y - BALL_RADIUS - 0.001 },
{ x: x + 1 + BALL_RADIUS + 0.001, y: y - BALL_RADIUS - 0.001 },
{ x: x - BALL_RADIUS - 0.001, y: y + 1 + BALL_RADIUS + 0.001 },
{ x: x + 1 + BALL_RADIUS + 0.001, y: y + 1 + BALL_RADIUS + 0.001 },
);
}
}
const available = candidates.filter(position =>
position.x >= BALL_RADIUS && position.x <= COLS - BALL_RADIUS &&
position.y >= BALL_RADIUS && position.y <= ROWS - BALL_RADIUS &&
!hitsBoard(position.x, position.y));
available.sort((a, b) =>
Math.hypot(a.x - ball.x, a.y - ball.y) - Math.hypot(b.x - ball.x, b.y - ball.y));
if (available.length) {
ball.x = available[0].x;
ball.y = available[0].y;
}
}
}
function completeWall() {
if (!wall) return;
if ([wall.negative, wall.positive].every(half => half.destroyed)) {
wall = null;
return;
}
wall = null;
playSound(480, 0.08);
fillCapturedAreas();
pushBallsOutOfWalls();
const filled = percentFilled();
if (filled >= TARGET) {
score += level * 100 + filled * 5 + Math.ceil(remaining) + lives * 25;
level++;
checkpoint = {
level: level,
lives: lives,
time: remaining,
area: filled,
final: false,
};
if (api && typeof api.save === 'function') api.save(serializeMap(false), checkpoint, score);
playSound(720, 0.16);
showMessage(format(labels.levelComplete, { level: level - 1 }), labels.continue, resetLevel);
}
updateHud();
}
function destroyHalf(half) {
half.destroyed = true;
half.cells.clear();
lives--;
playSound(120, 0.18);
if (lives <= 0) {
finishGame();
}
updateHud();
}
function finishGame() {
if (!running) return;
running = false;
paused = false;
playSound(80, 0.3);
const died = lives <= 0;
if (!died) wall = null;
savedMap = serializeMap(died);
checkpoint = {
level: level,
lives: Math.max(0, lives),
time: Math.max(0, remaining),
area: percentFilled(),
final: true,
};
if (!finalSaved && api && typeof api.save === 'function') {
finalSaved = true;
api.save(savedMap, checkpoint, score);
}
showMessage(format(labels.gameOver, { score: score }), labels.newGame, function() {
if (writable && score > 0 && !window.confirm(format(labels.confirmNewGame, { score: score }))) {
overlay.classList.add('visible');
return;
}
level = 1;
score = 0;
checkpoint = {
level: 1,
lives: 2,
time: LEVEL_SECONDS,
area: 0,
final: false,
};
if (writable && api && typeof api.save === 'function') api.save(emptyMap(), checkpoint, score);
resetLevel();
});
}
function showMessage(message, button, callback) {
running = false;
overlayMessage.textContent = message;
newGameButton.textContent = button;
overlay.classList.add('visible');
newGameButton.onclick = function() {
overlay.classList.remove('visible');
callback();
root.focus();
};
}
function ballTouchesHalf(ball, half, direction) {
if (!wall) return false;
const originCell = id(wall.origin.x, wall.origin.y);
for (const cellId of half.cells) {
const x = cellId % COLS;
const y = Math.floor(cellId / COLS);
if (cellId === originCell) {
const sibling = direction < 0 ? wall.positive : wall.negative;
if (!sibling.destroyed) {
const position = wall.orientation === 'horizontal' ? ball.x : ball.y;
const center = (wall.orientation === 'horizontal' ? wall.origin.x : wall.origin.y) + 0.5;
if ((direction < 0) !== (position < center)) continue;
}
}
if (circleTouchesCell(ball.x, ball.y, x, y)) return true;
}
return false;
}
function hitsBoard(x, y) {
const minX = Math.floor(x - BALL_RADIUS);
const maxX = Math.floor(x + BALL_RADIUS);
const minY = Math.floor(y - BALL_RADIUS);
const maxY = Math.floor(y + BALL_RADIUS);
for (let cy = minY; cy <= maxY; cy++) {
for (let cx = minX; cx <= maxX; cx++) {
if (cx < 0 || cy < 0 || cx >= COLS || cy >= ROWS) continue;
if (occupied[id(cx, cy)] && circleTouchesCell(x, y, cx, cy)) return true;
}
}
return false;
}
function updateBalls(dt) {
for (const ball of balls) {
const cellX = Math.floor(ball.x);
const cellY = Math.floor(ball.y);
if (!cellBlocked(cellX, cellY) &&
cellBlocked(cellX - 1, cellY) && cellBlocked(cellX + 1, cellY) &&
cellBlocked(cellX, cellY - 1) && cellBlocked(cellX, cellY + 1)) {
ball.x = cellX + 0.5;
ball.y = cellY + 0.5;
ball.spin -= dt * 7;
continue;
}
const targetX = ball.x + ball.vx * dt;
const targetY = ball.y + ball.vy * dt;
const bouncedX = targetX - BALL_RADIUS < 0 || targetX + BALL_RADIUS > COLS ||
hitsBoard(targetX, ball.y);
const bouncedY = targetY - BALL_RADIUS < 0 || targetY + BALL_RADIUS > ROWS ||
hitsBoard(ball.x, targetY);
if (bouncedX) ball.vx *= -1;
if (bouncedY) ball.vy *= -1;
if (!bouncedX && !bouncedY && hitsBoard(targetX, targetY)) {
ball.vx *= -1;
ball.vy *= -1;
}
ball.x = Math.max(BALL_RADIUS, Math.min(COLS - BALL_RADIUS, ball.x + ball.vx * dt));
ball.y = Math.max(BALL_RADIUS, Math.min(ROWS - BALL_RADIUS, ball.y + ball.vy * dt));
ball.spin -= dt * 7;
}
}
function update(dt) {
updateBalls(dt);
if (wall) {
wallClock += dt;
const wallStep = wallSpeed === 'slow' ? WALL_STEP_SLOW : WALL_STEP_FAST;
while (wall && wallClock >= wallStep) {
wallClock -= wallStep;
extendEnd(wall.negative, -1);
extendEnd(wall.positive, 1);
const hitHalves = [[wall.negative, -1], [wall.positive, 1]].filter(([half, direction]) =>
!half.done && !half.destroyed && balls.some(ball => ballTouchesHalf(ball, half, direction)));
for (const [half] of hitHalves) {
destroyHalf(half);
}
if (!running || !wall) break;
if (wall && [wall.negative, wall.positive].every(half => half.done || half.destroyed)) completeWall();
}
}
remaining -= dt;
if (remaining <= 0) finishGame();
}
function draw() {
g.fillStyle = '#777';
g.fillRect(0, 0, canvas.width, canvas.height);
g.strokeStyle = 'rgba(255,255,255,.08)';
g.lineWidth = 1;
for (let x = 0; x < COLS; x++) {
g.beginPath();
g.moveTo((x + 0.5) * CELL, 0);
g.lineTo((x + 0.5) * CELL, canvas.height);
g.stroke();
}
for (let y = 0; y < ROWS; y++) {
g.beginPath();
g.moveTo(0, (y + 0.5) * CELL);
g.lineTo(canvas.width, (y + 0.5) * CELL);
g.stroke();
}
const background = parseMap(savedMap);
if (background) {
for (let y = 0; y < ROWS; y++) {
for (let x = 0; x < COLS; x++) {
const cell = background[y][x];
if (cell === '.' || cell === 'o') continue;
g.fillStyle = cell === '1' ? '#e3424f' : cell === '2' ? '#2f8ee5' : '#000';
g.fillRect(x * CELL, y * CELL, CELL, CELL);
}
}
for (let y = 0; y < ROWS; y++) {
for (let x = 0; x < COLS; x++) {
const color = background[y][x];
if (color !== '1' && color !== '2') continue;
const direction = color === '1' ? 1 : -1;
const horizontal = [x - 1, x + 1].some(nx =>
nx >= 0 && nx < COLS && (background[y][nx] === '1' || background[y][nx] === '2'));
const vertical = [y - 1, y + 1].some(ny =>
ny >= 0 && ny < ROWS && (background[ny][x] === '1' || background[ny][x] === '2'));
const next = horizontal && !vertical ? background[y][x + direction] :
vertical && !horizontal && background[y + direction] ? background[y + direction][x] : null;
if (next === color) continue;
g.strokeStyle = '#ececf2';
g.lineWidth = 2;
g.strokeRect(x * CELL + 2, y * CELL + 2, CELL - 4, CELL - 4);
g.fillStyle = '#fff';
for (const offsetX of [8, 17]) {
for (const offsetY of [8, 17]) {
g.beginPath();
g.arc(x * CELL + offsetX, y * CELL + offsetY, 2, 0, Math.PI * 2);
g.fill();
}
}
}
}
}
for (let y = 0; y < ROWS; y++) {
for (let x = 0; x < COLS; x++) {
const color = occupied[id(x, y)];
if (color) {
g.fillStyle = '#000';
g.fillRect(x * CELL, y * CELL, CELL, CELL);
}
}
}
if (wall) {
for (const half of [wall.negative, wall.positive]) {
if (half.destroyed) continue;
g.fillStyle = half.color === 1 ? '#e3424f' : '#2f8ee5';
for (const cellId of half.cells) {
const x = cellId % COLS;
const y = Math.floor(cellId / COLS);
g.fillRect(x * CELL + 3, y * CELL + 3, CELL - 6, CELL - 6);
}
if (!half.done) {
g.strokeStyle = '#ececf2';
g.lineWidth = 2;
g.strokeRect(half.x * CELL + 2, half.y * CELL + 2, CELL - 4, CELL - 4);
g.fillStyle = '#fff';
for (const offsetX of [8, 17]) {
for (const offsetY of [8, 17]) {
g.beginPath();
g.arc(half.x * CELL + offsetX, half.y * CELL + offsetY, 2, 0, Math.PI * 2);
g.fill();
}
}
}
}
}
for (const ball of balls) {
const x = ball.x * CELL;
const y = ball.y * CELL;
const radius = BALL_RADIUS * CELL;
const phase = ((ball.spin % (Math.PI * 2)) + Math.PI * 2) % (Math.PI * 2);
const swapped = phase >= Math.PI;
const curve = Math.cos(phase % Math.PI) * radius * 4 / 3;
g.save();
g.beginPath();
g.arc(x, y, radius, 0, 7);
g.clip();
g.fillStyle = swapped ? '#d93643' : '#f4f1e8';
g.fillRect(x - radius, y - radius, radius * 2, radius * 2);
g.fillStyle = swapped ? '#f4f1e8' : '#d93643';
g.beginPath();
g.moveTo(x, y - radius);
g.bezierCurveTo(x + curve, y - radius, x + curve, y + radius, x, y + radius);
g.arc(x, y, radius, Math.PI / 2, -Math.PI / 2, true);
g.fill();
g.restore();
g.strokeStyle = '#000';
g.lineWidth = 0.5;
g.beginPath();
g.arc(x, y, radius, 0, 7);
g.stroke();
}
if (keyboardMode && root.matches(':focus-visible')) {
const x = keyboardCursor.x * CELL;
const y = keyboardCursor.y * CELL;
g.strokeStyle = '#ffd54f';
g.lineWidth = 3;
g.strokeRect(x + 2, y + 2, CELL - 4, CELL - 4);
}
}
function loop(now) {
if (!root.isConnected) {
root._jezzballDestroy();
return;
}
if (!last) last = now;
const dt = Math.min((now - last) / 1000, 0.05);
last = now;
if (running && !paused) update(dt);
draw();
updateHud();
frame = requestAnimationFrame(loop);
}
function canvasPoint(event) {
const rect = canvas.getBoundingClientRect();
return {
x: (event.clientX - rect.left) * COLS / rect.width,
y: (event.clientY - rect.top) * ROWS / rect.height,
};
}
const touchPoints = new Map();
let multitouchSeen = false;
function onPointerDown(event) {
root.focus();
keyboardMode = false;
if (event.pointerType === 'touch') {
event.preventDefault();
touchPoints.set(event.pointerId, canvasPoint(event));
if (touchPoints.size !== 2) return;
multitouchSeen = true;
const points = Array.from(touchPoints.values());
const dx = Math.abs(points[1].x - points[0].x);
const dy = Math.abs(points[1].y - points[0].y);
if (dx > dy * Math.sqrt(3)) {
orientation = 'horizontal';
} else if (dy > dx * Math.sqrt(3)) {
orientation = 'vertical';
} else {
return;
}
updateHud();
startWall((points[0].x + points[1].x) / 2, (points[0].y + points[1].y) / 2);
return;
}
if (event.button === 2) {
event.preventDefault();
toggleOrientation();
return;
}
const point = canvasPoint(event);
startWall(point.x, point.y);
}
function onPointerUp(event) {
const point = touchPoints.get(event.pointerId);
const singleTouch = touchPoints.size === 1;
touchPoints.delete(event.pointerId);
if (event.type === 'pointerup' && !multitouchSeen && singleTouch && point) {
startWall(point.x, point.y);
}
}
function onKeyDown(event) {
if (event.target.closest('input, textarea, select, button, [contenteditable="true"]')) return;
if (event.key === 'ArrowLeft' || event.key === 'ArrowRight' ||
event.key === 'ArrowUp' || event.key === 'ArrowDown') {
event.preventDefault();
keyboardMode = true;
if (event.key === 'ArrowLeft') keyboardCursor.x = Math.max(0, keyboardCursor.x - 1);
if (event.key === 'ArrowRight') keyboardCursor.x = Math.min(COLS - 1, keyboardCursor.x + 1);
if (event.key === 'ArrowUp') keyboardCursor.y = Math.max(0, keyboardCursor.y - 1);
if (event.key === 'ArrowDown') keyboardCursor.y = Math.min(ROWS - 1, keyboardCursor.y + 1);
} else if (event.key === 'Enter') {
event.preventDefault();
keyboardMode = true;
startWall(keyboardCursor.x, keyboardCursor.y);
} else if (event.code === 'Space') {
event.preventDefault();
toggleOrientation();
} else if (event.key.toLowerCase() === 'p') {
event.preventDefault();
togglePause();
}
}
function togglePause() {
if (!running) return;
paused = !paused;
pauseButton.textContent = paused ? labels.resume : labels.pause;
}
function preventContextMenu(event) { event.preventDefault(); }
canvas.addEventListener('pointerdown', onPointerDown);
canvas.addEventListener('pointerup', onPointerUp);
canvas.addEventListener('pointercancel', onPointerUp);
canvas.addEventListener('contextmenu', preventContextMenu);
directionButton.addEventListener('click', toggleOrientation);
speedButton.addEventListener('click', toggleSpeed);
soundButton.addEventListener('click', toggleSound);
pauseButton.addEventListener('click', togglePause);
root.addEventListener('keydown', onKeyDown);
root._jezzballDestroy = function() {
cancelAnimationFrame(frame);
canvas.removeEventListener('pointerdown', onPointerDown);
canvas.removeEventListener('pointerup', onPointerUp);
canvas.removeEventListener('pointercancel', onPointerUp);
canvas.removeEventListener('contextmenu', preventContextMenu);
directionButton.removeEventListener('click', toggleOrientation);
speedButton.removeEventListener('click', toggleSpeed);
soundButton.removeEventListener('click', toggleSound);
pauseButton.removeEventListener('click', togglePause);
root.removeEventListener('keydown', onKeyDown);
if (audioContext) audioContext.close();
root._jezzballDestroy = null;
};
if (checkpoint.final) {
if (!restoreBalls()) placeBalls();
if (!Number.isSafeInteger(initial.lives)) lives = balls.length;
showMessage(format(labels.finalScore, { score: score }), labels.newGame, function() {
if (writable && score > 0 && !window.confirm(format(labels.confirmNewGame, { score: score }))) {
overlay.classList.add('visible');
return;
}
level = 1;
score = 0;
checkpoint = {
level: 1,
lives: 2,
time: LEVEL_SECONDS,
area: 0,
final: false,
};
if (writable && api && typeof api.save === 'function') api.save(emptyMap(), checkpoint, score);
resetLevel();
});
} else {
restoreBalls();
showMessage(format(labels.level, { level: level }), labels.continue, resetLevel);
}
frame = requestAnimationFrame(loop);
return root._jezzballDestroy;
}
Handlebars.registerHelper('jezzball', function(ref, actions, el) {
return function() {
jezzballApp(el.querySelector('.jezzball-game'), {
url: ref && ref.url,
comment: ref && ref.comment,
initial: ref && ref.plugins && ref.plugins['plugin/jezzball'] || {},
score: ref && ref.plugins && ref.plugins['plugin/score'],
writable: !actions || !!actions.patch,
save: actions && actions.patch ? function(comment, state, score) {
actions.patch({
comment: comment,
plugins: {
'plugin/jezzball': state,
'plugin/score': score,
},
});
} : undefined,
});
};
});
</script>
`,
// language=Handlebars
ui: `
<div class="jezzball-game" tabindex="0">
<div class="jezzball-toolbar">
<span class="jezzball-level"></span>
<span class="jezzball-example"></span>
<span class="jezzball-controls">
<button class="jezzball-direction" type="button"></button>
<button class="jezzball-speed" type="button"></button>
<button class="jezzball-sound" type="button"></button>
<button class="jezzball-pause" type="button"></button>
</span>
</div>
<div class="jezzball-stage">
<canvas class="jezzball-canvas" width="800" height="600"></canvas>
<span class="jezzball-stat jezzball-lives"></span>
<span class="jezzball-center">
<span class="jezzball-stat jezzball-score"></span>
</span>
<span class="jezzball-stat jezzball-time"></span>
<span class="jezzball-stat jezzball-filled"></span>
<div class="jezzball-overlay"><div><strong></strong><button class="jezzball-new-game" type="button"></button></div></div>
</div>
{{defer el (jezzball ref actions el)}}
</div>
`,
},
schema: {
optionalProperties: {
level: { type: 'uint32' },
lives: { type: 'uint8' },
time: { type: 'float64' },
area: { type: 'uint8' },
final: { type: 'boolean' },
},
},
};
export const jezzballTemplate: Template = {
tag: 'plugin/jezzball',
name: $localize`🟣️ JezzBall`,
config: {
mod: $localize`🟣️ JezzBall`,
version: 1,
type: 'plugin',
generated: $localize`Generated by jasper-ui ${DateTime.now().toISO()}`,
view: $localize`🟣️`,
// language=CSS
css: `
app-ref-list.plugin_jezzball {
.list-container {
grid-auto-flow: row dense;
padding: 4px;
gap: 8px;
grid-template-columns: minmax(0, 1fr);
.list-number {
display: none;
}
.ref {
min-width: 0;
break-inside: avoid;
.toggle {
display: none;
}
}
}
}
`,
advancedForm: [{
key: 'defaultExpanded',
type: 'boolean',
defaultValue: true,
props: {
label: $localize`Default Expanded:`,
},
}],
},
defaults: <RootConfig> {
submitText: true,
defaultSort: ['plugins->plugin/score:num,DESC', 'modified,DESC'],
defaultCols: 1,
},
};
export const jezzballMod: Mod = {
plugin: [
scorePlugin,
jezzballPlugin,
],
template: [
jezzballTemplate,
],
};
|