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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
<link rel="icon" href="Logo.png" type="image/png">
<title>PlyGround Physics Engine</title>
<style>
html {cursor: url('pointer.png'), auto; }
body { margin:0; overflow:hidden; background:#0d1117; color:white; font-family:"Segoe UI",sans-serif; }
.navbar { display:flex; align-items:center; justify-content:space-between; background:linear-gradient(90deg,#00ff95,#0077ff); padding:10px 20px; }
.navbar-left { display:flex; align-items:center; }
.navbar img { height:40px; margin-right:10px; }
.navbar h1 { font-size:22px; margin:0; }
.delete-menu { display:flex; gap:10px; }
.delete-menu button { background:#111; color:white; border:1px solid #00ff95; border-radius:6px; padding:5px 10px; cursor:pointer; transition:0.2s; }
.delete-menu button:hover { background:#00ff95; color:black; }
canvas { display:block; background:#161b22; }
/* --- NEW UI STYLES --- */
/* Sidebar */
#sidebar {
position: fixed;
top: 60px;
right: -360px; /* hidden by default */
width: 340px;
height: calc(100% - 60px);
background: linear-gradient(180deg, rgba(10,12,18,0.98), rgba(18,20,28,0.98));
border-left: 1px solid rgba(255,255,255,0.03);
padding: 14px;
box-shadow: -30px 0 60px rgba(0,0,0,0.6);
transition: right 0.34s cubic-bezier(.2,.8,.2,1);
z-index: 200;
overflow-y: auto;
backdrop-filter: blur(6px);
}
#sidebar.open { right: 0; }
.ui-section-title { font-weight:600; margin: 6px 0 10px 0; color: #dbefff; font-size:14px; }
.console-guide {
background: rgba(255,255,255,0.03);
border: 1px solid rgba(255,255,255,0.07);
border-radius: 12px;
padding: 14px;
margin-top: 14px;
font-size: 12px;
line-height: 1.6;
color: #d6e7ff;
}
.console-guide strong { color: #ffffff; }
.console-guide code {
display: inline-block;
background: rgba(255,255,255,0.07);
padding: 1px 6px;
border-radius: 5px;
color: #a8fffa;
font-family: Consolas, monospace;
font-size: 11.5px;
margin: 1px 0;
}
.tab-buttons { display:flex; gap:8px; margin-bottom:12px; }
.tab-buttons button {
flex:1;
padding:8px;
border-radius:8px;
background: rgba(255,255,255,0.03);
color: #cfefff;
border: 1px solid rgba(255,255,255,0.04);
cursor:pointer;
}
.tab-buttons button.active { background: rgba(0,255,255,0.08); border-color: rgba(0,255,255,0.18); color: #ffffff; }
.tab-content { display:none; }
.tab-content.active { display:block; }
.object-grid {
display: grid;
grid-template-columns: repeat(2, 1fr);
gap: 8px;
margin-bottom: 15px;
}
.object-item {
display:flex;
align-items:center;
gap:10px;
padding:10px;
background: rgba(255,255,255,0.02);
border: 1px solid rgba(255,255,255,0.03);
border-radius:8px;
cursor: grab;
user-select: none;
}
.object-item:active { cursor: grabbing; }
/* Audio Control Panel Styling */
.audio-control-panel {
background: rgba(255, 255, 255, 0.03);
border: 1px solid rgba(255, 255, 255, 0.06);
border-radius: 10px;
padding: 12px;
margin: 14px 0;
}
.audio-row {
display: flex;
align-items: center;
justify-content: space-between;
gap: 10px;
}
.audio-row label {
font-size: 13px;
color: #cfefff;
}
.volume-slider {
flex: 1;
-webkit-appearance: none;
appearance: none;
height: 6px;
border-radius: 3px;
background: rgba(255, 255, 255, 0.1);
outline: none;
cursor: pointer;
}
.volume-slider::-webkit-slider-runnable-track {
background: linear-gradient(90deg, #00ff95, #0077ff);
height: 6px;
border-radius: 3px;
}
.volume-slider::-webkit-slider-thumb {
-webkit-appearance: none;
appearance: none;
width: 14px;
height: 14px;
border-radius: 50%;
background: #ffffff;
cursor: pointer;
margin-top: -4px;
box-shadow: 0 0 5px rgba(0,0,0,0.5);
}
/* Audio Resume Prompt Overlay */
#audio-resume-prompt {
position: fixed;
top: 75px;
left: 50%;
transform: translateX(-50%);
background: rgba(13, 17, 23, 0.9);
border: 1px solid #00ff95;
padding: 10px 20px;
border-radius: 30px;
font-size: 14px;
color: #ffffff;
z-index: 9999;
cursor: pointer;
box-shadow: 0 4px 20px rgba(0, 255, 149, 0.2);
backdrop-filter: blur(8px);
transition: opacity 0.3s ease;
display: none;
align-items: center;
gap: 8px;
}
.prop-row { display:flex; justify-content:space-between; gap:8px; align-items:center; margin:8px 0; }
.prop-row label { flex:1; font-size:13px; color:#d7eefe; }
.prop-row input[type="number"], .prop-row input[type="text"] {
width:100px;
padding:6px;
border-radius:6px;
border:1px solid rgba(255,255,255,0.06);
background: rgba(255,255,255,0.02);
color: white;
}
.prop-row input[type="checkbox"] { transform:scale(1.2); }
#apply-props {
margin-top:10px;
width:100%;
padding:8px;
border-radius:8px;
border:none;
background: linear-gradient(90deg,#00c9ff,#0077ff);
color:#001;
font-weight:700;
cursor:pointer;
}
/* small helper: selection highlight overlay top-right */
.ui-hint { position:fixed; right:360px; top:70px; color:rgba(200,220,255,0.65); font-size:12px; z-index:210; display:none; }
.ui-hint.visible { display:block; }
/* make sure canvas area still clickable for drag/drop */
#world { touch-action: none; }
/* menu button */
#uiMenuBtn {
background: rgba(0,0,0,0.12);
border: 1px solid rgba(255,255,255,0.06);
color: white;
padding:6px 10px;
border-radius:8px;
cursor:pointer;
margin-left:8px;
}
</style>
</head>
<body>
<audio id="bgMusic" src="BackGroundMusic.webm" loop></audio>
<div id="audio-resume-prompt">🎵 Click anywhere to resume background music</div>
<div class="navbar">
<div class="navbar-left">
<img src="Logo.png" alt="Logo">
<h1>PlyGround Physics Engine</h1>
</div>
<div class="delete-menu">
<button id="delLast">Delete Last</button>
<button id="delAll">Delete All</button>
<button id="delMode">Delete Mode: OFF</button>
<button id="uiMenuBtn" title="Open UI">☰ UI</button>
</div>
</div>
<canvas id="world"></canvas>
<div id="sidebar" aria-hidden="true">
<div class="tab-buttons">
<button class="tab-btn active" data-tab="objects">Objects</button>
<button class="tab-btn" data-tab="properties">Properties</button>
<button class="tab-btn" data-tab="console">Console</button>
</div>
<div id="tab-objects" class="tab-content active">
<div class="ui-section-title">Drag & Drop Objects</div>
<div class="object-grid">
<div class="object-item" draggable="true" data-type="box">📦 Box</div>
<div class="object-item" draggable="true" data-type="ball">⚪ Ball</div>
<div class="object-item" draggable="true" data-type="triangle">🔺 Triangle</div>
<div class="object-item" draggable="true" data-type="rod">▬ Rod</div>
<div class="object-item" draggable="true" data-type="star">⭐ Star</div>
<div class="object-item" draggable="true" data-type="hex">⬣ Hex</div>
<div class="object-item" draggable="true" data-type="plank">🪵 Plank</div>
<div class="object-item" draggable="true" data-type="miniball">• MiniBall</div>
<div class="object-item" draggable="true" data-type="tnt">💣 TNT</div>
<div class="object-item" draggable="true" data-type="torch">🕯️ Torch</div>
<div class="object-item" draggable="true" data-type="cannon">🔫 Cannon</div>
<div class="object-item" draggable="true" data-type="encoder">🖥️ Encoder</div>
<div class="object-item" draggable="true" data-type="gravitywell">🌀 Gravity Well</div>
<div class="object-item" draggable="true" data-type="portal">🌀 Portal Pair</div>
</div>
<div class="ui-section-title">Audio Settings</div>
<div class="audio-control-panel">
<div class="audio-row">
<label id="volume-label">🔊 BGM Volume (50%)</label>
<input type="range" id="bgm-volume" class="volume-slider" min="0" max="1" step="0.01" value="0.5">
</div>
</div>
<div style="height:10px"></div>
<div class="ui-section-title">Quick Tips</div>
<div style="font-size:13px;color:#cde8ff;line-height:1.4">
• Drag items onto the canvas to spawn.<br>
• Double-click an object on the canvas to inspect its properties.<br>
• Edit density/friction and press Apply to update live.<br>
• Objects marked 'Burnable' will ignite from nearby fire.
</div>
</div>
<div id="tab-properties" class="tab-content">
<div class="ui-section-title">Selected Object</div>
<div id="no-selection" style="color:#9fbfe6;font-size:13px">
No object selected. Double-click an object on the canvas.
</div>
<div id="prop-panel" style="display:none">
<div class="prop-row">
<label>Label</label>
<input id="prop-label" type="text" />
</div>
<div class="prop-row">
<label>Density</label>
<input id="prop-density" type="number" step="0.01" />
</div>
<div class="prop-row">
<label>Friction</label>
<input id="prop-friction" type="number" step="0.01" />
</div>
<div class="prop-row" style="justify-content:flex-start;">
<label style="flex:0 0 auto;margin-right:6px">Burnable</label>
<input id="prop-burn" type="checkbox" />
</div>
<button id="apply-props">Apply</button>
<div style="height:12px"></div>
<div style="font-size:12px;color:#cde8ff">
Note: Some changes (like mass/density) may slightly alter current velocities.
</div>
</div>
</div>
<div id="tab-console" class="tab-content">
<div class="ui-section-title">Encoder Console</div>
<div id="console-instructions" style="font-size:13px;color:#cde8ff;line-height:1.5;margin-bottom:10px;">
Write a single command and press <strong>M</strong> while pointing at a target object to execute it.
</div>
<textarea id="encoder-console-input" placeholder=".teleport(200,150)" style="width:100%; min-height:140px; padding:10px; border-radius:10px; border:1px solid rgba(255,255,255,0.08); background:rgba(255,255,255,0.04); color:white; font-family:Consolas,monospace; font-size:14px; resize:vertical;"></textarea>
<div id="console-autofill" style="margin-top:10px; display:flex; flex-wrap:wrap; gap:8px;">
<button type="button" class="autofill-btn">.teleport(200,150)</button>
<button type="button" class="autofill-btn">.transform(ball)</button>
<button type="button" class="autofill-btn">.push(0.05,right)</button>
<button type="button" class="autofill-btn">.size(1.3)</button>
<button type="button" class="autofill-btn">.get(density)</button>
<button type="button" class="autofill-btn">.get(burning)</button>
<button type="button" class="autofill-btn">if(.get(name)=="Box"){ .burn() }</button>
<button type="button" class="autofill-btn">.color(#ff0000)</button>
<button type="button" class="autofill-btn">.setvelocity(5,-2)</button>
<button type="button" class="autofill-btn">.setgravity(0.0008)</button>
<button type="button" class="autofill-btn">.setgravity(0.0004,400)</button>
</div>
<button id="encoder-console-run" style="margin-top:10px; width:100%; padding:10px; border:none; border-radius:10px; background: linear-gradient(90deg,#7b61ff,#c98bff); color:#fff; cursor:pointer; font-weight:700;">Save Command</button>
<div id="console-feedback" style="margin-top:10px; font-size:13px; color:#b1f2c5;"></div>
<div class="console-guide">
<div style="display:flex;align-items:center;gap:8px;margin-bottom:10px;">
<span style="font-size:18px">🖥️</span>
<strong style="font-size:14px;letter-spacing:0.5px">ENCODER REFERENCE</strong>
</div>
<div style="margin-bottom:10px;padding:8px;background:rgba(0,188,255,0.06);border-left:2px solid rgba(0,188,255,0.4);border-radius:6px;">
<strong style="color:#7dd3fc;font-size:12px">⚡ SYNTAX</strong><br>
<code>.command(arg1, arg2)</code><br>
<span style="font-size:12px;opacity:0.8">Double-click Encoder → write command → press <strong>M</strong> aimed at a target.</span>
</div>
<div style="margin-bottom:10px;padding:8px;background:rgba(160,80,255,0.06);border-left:2px solid rgba(160,80,255,0.4);border-radius:6px;">
<strong style="color:#c084fc;font-size:12px">🔀 CONTROL FLOW</strong><br>
<code>if(.get(name)=="Box")</code><br>
<code> .burn()</code><br>
<code>else</code><br>
<code> .teleport(300,100)</code>
</div>
<div style="margin-bottom:10px;">
<strong style="color:#86efac;font-size:12px">📦 MOVEMENT</strong><br>
<code>.teleport(x, y)</code> — snap position<br>
<code>.push(force, dir)</code> — left/right/up/down<br>
<code>.setvelocity(vx, vy)</code> — override velocity<br>
<code>.applyforce(fx, fy)</code> — raw force vector
</div>
<div style="margin-bottom:10px;">
<strong style="color:#fde68a;font-size:12px">🔧 PROPERTIES</strong><br>
<code>.size(scale)</code> — resize body<br>
<code>.setdensity(n)</code> — change mass<br>
<code>.setfriction(n)</code> — surface grip<br>
<code>.rotate(deg)</code> — rotate in degrees<br>
<code>.color(#hex)</code> — repaint fill<br>
<code>.setlabel(name)</code> — rename entity
</div>
<div style="margin-bottom:10px;">
<strong style="color:#fca5a5;font-size:12px">🔥 ACTIONS</strong><br>
<code>.burn()</code> — ignite body<br>
<code>.transform(type)</code> — morph to box/ball/etc<br>
<code>.delete()</code> — remove from world<br>
<code>.makestatic()</code> / <code>.makedynamic()</code>
</div>
<div style="margin-bottom:10px;">
<strong style="color:#67e8f9;font-size:12px">🌀 GRAVITY WELL</strong><br>
<code>.setgravity(force)</code> — pull strength<br>
<code>.setgravity(force, radius)</code> — force + range
</div>
<div style="padding:8px;background:rgba(255,255,255,0.03);border-radius:6px;">
<strong style="color:#d1d5db;font-size:12px">📡 GET VALUES</strong><br>
<code>.get(name)</code> · <code>.get(density)</code> · <code>.get(x)</code><br>
<code>.get(burning)</code> · <code>.get(mass)</code> · <code>.get(angle)</code>
</div>
</div>
</div>
</div>
<div class="ui-hint" id="uiHint">Double-click object → properties appear</div>
<script>
document.addEventListener('DOMContentLoaded', () => {
const bgMusic = document.getElementById('bgMusic');
const volumeSlider = document.getElementById('bgm-volume');
const volumeLabel = document.getElementById('volume-label');
const resumePrompt = document.getElementById('audio-resume-prompt');
function updateLabelText(value) {
const percentage = Math.round(value * 100);
if (percentage === 0) {
volumeLabel.textContent = `🔇 Muted (0%)`;
} else if (percentage < 50) {
volumeLabel.textContent = `🔉 BGM Volume (${percentage}%)`;
} else {
volumeLabel.textContent = `🔊 BGM Volume (${percentage}%)`;
}
}
// Recover volume state
const savedVolume = sessionStorage.getItem('bgm_volume_level');
if (savedVolume !== null) {
bgMusic.volume = savedVolume;
volumeSlider.value = savedVolume;
updateLabelText(savedVolume);
} else {
bgMusic.volume = volumeSlider.value;
}
// Recover duration timestamp
const savedTime = sessionStorage.getItem('bgm_playback_time');
if (savedTime !== null) {
bgMusic.currentTime = parseFloat(savedTime);
}
// Check if music was previously active before refresh
const wasPlayingBeforeRefresh = sessionStorage.getItem('bgm_is_playing') === 'true';
// Track state in real-time
bgMusic.addEventListener('timeupdate', () => {
sessionStorage.setItem('bgm_playback_time', bgMusic.currentTime);
});
bgMusic.addEventListener('play', () => {
sessionStorage.setItem('bgm_is_playing', 'true');
});
bgMusic.addEventListener('pause', () => {
sessionStorage.setItem('bgm_is_playing', 'false');
});
// Volume slider inputs
volumeSlider.addEventListener('input', (e) => {
const volumeValue = e.target.value;
bgMusic.volume = volumeValue;
sessionStorage.setItem('bgm_volume_level', volumeValue);
updateLabelText(volumeValue);
});
// Attempt to trigger playback automatically
const playAudio = () => {
bgMusic.play()
.then(() => {
// If successful, hide prompt banner completely
resumePrompt.style.display = 'none';
})
.catch(err => {
// Chrome blocked it! Show prompt banner if it was playing previously
if (wasPlayingBeforeRefresh) {
resumePrompt.style.display = 'flex';
}
});
};
// Run autoplay on load
playAudio();
// Catch-all interaction handler to clear the block rule on any page click
const startAudioOnInteraction = () => {
bgMusic.play().then(() => {
resumePrompt.style.display = 'none';
}).catch(err => console.log("Audio contextual lock error."));
document.removeEventListener('click', startAudioOnInteraction);
};
document.addEventListener('click', startAudioOnInteraction);
});
</script>
<script src="https://cdn.jsdelivr.net/npm/matter-js@0.19.0/build/matter.min.js"></script>
<script src="script.js"></script>
</body>
</html>