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6 changed files with 95 additions and 688 deletions

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@ -1,47 +0,0 @@
# Dino Land
No-build browser game using plain **HTML/CSS/JS/PHP**.
## Run locally
```bash
cd "/Users/lawsonawhittington/.openclaw/workspace/Dino Land"
php -S 0.0.0.0:8000
```
Open on the same machine: http://localhost:8000
LAN test URL (from another device on your network):
1. Find your LAN IP:
`python3 -c "import socket;s=socket.socket(socket.AF_INET,socket.SOCK_DGRAM);s.connect(('8.8.8.8',80));print(s.getsockname()[0]);s.close()"`
2. Open: `http://<YOUR_LAN_IP>:8000` (example: `http://192.168.1.25:8000`)
## Controls
- **Up Arrow**: jump
- **Down Arrow**: duck
- **Left Arrow**: walk backward
- **Right Arrow**: walk forward
## Gameplay Rules
- TRex starts with **3 hearts**.
- Moving forward earns score (**+1 per forward step unit**).
- Water gaps cause instant death if landed in.
- Ant collision costs 1 heart; jumping on ants crushes them.
- Pterodactyls unlock after score > 100 (duck to avoid).
- Meteors unlock after score > 250.
- On death: top-10 leaderboard is shown; top-10 runs can be saved.
## Leaderboard persistence
- Backend endpoint: `api/scores.php`
- Data file: `data/scores.json`
## Quick verification checklist
1. Start server and open game.
2. Confirm score increases while moving right.
3. Confirm hearts drop on ant / pterodactyl / meteor collisions.
4. Confirm water causes immediate game over.
5. Confirm leaderboard loads and score save works.

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@ -1,63 +0,0 @@
<?php
declare(strict_types=1);
header('Content-Type: application/json');
$storageDir = __DIR__ . '/../data';
$storageFile = $storageDir . '/scores.json';
if (!is_dir($storageDir)) {
mkdir($storageDir, 0777, true);
}
if (!file_exists($storageFile)) {
file_put_contents($storageFile, json_encode([], JSON_PRETTY_PRINT));
}
function loadScores(string $file): array {
$raw = file_get_contents($file);
if ($raw === false || trim($raw) === '') {
return [];
}
$decoded = json_decode($raw, true);
return is_array($decoded) ? $decoded : [];
}
function saveScores(string $file, array $scores): void {
usort($scores, fn($a, $b) => ($b['score'] ?? 0) <=> ($a['score'] ?? 0));
$scores = array_slice($scores, 0, 10);
file_put_contents($file, json_encode($scores, JSON_PRETTY_PRINT));
}
$method = $_SERVER['REQUEST_METHOD'] ?? 'GET';
if ($method === 'GET') {
$scores = loadScores($storageFile);
usort($scores, fn($a, $b) => ($b['score'] ?? 0) <=> ($a['score'] ?? 0));
echo json_encode(array_slice($scores, 0, 10));
exit;
}
if ($method === 'POST') {
$payload = json_decode(file_get_contents('php://input') ?: '{}', true);
$name = trim((string)($payload['name'] ?? 'Anonymous'));
$score = (int)($payload['score'] ?? 0);
if ($name === '') $name = 'Anonymous';
$name = mb_substr($name, 0, 20);
if ($score < 0) $score = 0;
$scores = loadScores($storageFile);
$scores[] = [
'name' => $name,
'score' => $score,
'date' => date('c')
];
saveScores($storageFile, $scores);
echo json_encode(['ok' => true]);
exit;
}
http_response_code(405);
echo json_encode(['error' => 'Method Not Allowed']);

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@ -1 +0,0 @@
[]

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@ -14,33 +14,6 @@
<canvas id="game" width="960" height="540" aria-label="Dino Land game canvas"></canvas>
<div id="startScreen">
<div class="panel">
<h1>Start Dino Land</h1>
<form id="startForm">
<label for="startPassword">Password</label>
<input id="startPassword" type="password" required placeholder="Enter password" />
<label for="accessMode">Access Mode</label>
<select id="accessMode">
<option value="standard" selected>Standard (3 hearts)</option>
<option value="vip">VIP (6 hearts)</option>
<option value="vipPlus">VIP+ (9 hearts)</option>
</select>
<label for="difficulty">Difficulty</label>
<select id="difficulty">
<option value="easy">Easy</option>
<option value="medium" selected>Medium</option>
<option value="hard">Hard</option>
</select>
<p id="startError" class="error"></p>
<button type="submit">Start Game</button>
</form>
</div>
</div>
<div id="deathScreen" class="hidden">
<div class="panel">
<h1>TRex Down!</h1>
@ -52,7 +25,7 @@
<input id="playerName" maxlength="20" required />
<button type="submit">Save Score</button>
</form>
<button id="restartBtn">Restart</button>
<button id="restartBtn">Play Again</button>
</div>
</div>

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@ -2,101 +2,11 @@ const canvas = document.getElementById('game');
const ctx = canvas.getContext('2d');
const scoreEl = document.getElementById('score');
const heartsEl = document.getElementById('hearts');
const deathScreenEl = document.getElementById('deathScreen');
const finalScoreEl = document.getElementById('finalScore');
const leaderboardEl = document.getElementById('leaderboard');
const saveScoreFormEl = document.getElementById('saveScoreForm');
const playerNameEl = document.getElementById('playerName');
const restartBtnEl = document.getElementById('restartBtn');
const startScreenEl = document.getElementById('startScreen');
const startFormEl = document.getElementById('startForm');
const passwordEl = document.getElementById('startPassword');
const accessModeEl = document.getElementById('accessMode');
const difficultyEl = document.getElementById('difficulty');
const startErrorEl = document.getElementById('startError');
const keys = new Set();
const gravity = 1900;
const groundY = 420;
const worldWidth = 13000;
const DIFFICULTY = {
easy: {
moveSpeed: 0.88,
hazardSpeed: 0.75,
pteroSpawn: 3.0,
meteorSpawn: 2.25,
hitCooldown: 1.35,
pteroUnlock: 140,
meteorUnlock: 340
},
medium: {
moveSpeed: 1.0,
hazardSpeed: 1.0,
pteroSpawn: 2.2,
meteorSpawn: 1.5,
hitCooldown: 1.0,
pteroUnlock: 100,
meteorUnlock: 250
},
hard: {
moveSpeed: 1.18,
hazardSpeed: 1.35,
pteroSpawn: 1.45,
meteorSpawn: 1.05,
hitCooldown: 0.7,
pteroUnlock: 70,
meteorUnlock: 170
}
};
const BIOMES = [
{ name: 'Plains', start: 0, end: 2200, sky: '#8ddcff', ground: '#88d34f' },
{ name: 'Desert', start: 2200, end: 5200, sky: '#f4c983', ground: '#d5ad63' },
{ name: 'Jungle', start: 5200, end: 8000, sky: '#6ecb8c', ground: '#3d8b4a' },
{ name: 'Snow', start: 8000, end: 10400, sky: '#d5e9ff', ground: '#edf5ff' },
{ name: 'Lava', start: 10400, end: worldWidth, sky: '#48302b', ground: '#6b3b32' }
];
let audioCtx = null;
let gameConfig = { accessMode: 'standard', difficulty: 'medium' };
function ensureAudioCtx() {
if (!audioCtx) audioCtx = new (window.AudioContext || window.webkitAudioContext)();
if (audioCtx.state === 'suspended') audioCtx.resume();
}
function playSfx(type) {
try {
ensureAudioCtx();
const now = audioCtx.currentTime;
const osc = audioCtx.createOscillator();
const gain = audioCtx.createGain();
osc.connect(gain);
gain.connect(audioCtx.destination);
const presets = {
jump: { f0: 420, f1: 680, dur: 0.1, wave: 'triangle', vol: 0.06 },
squish: { f0: 180, f1: 120, dur: 0.12, wave: 'square', vol: 0.07 },
duck: { f0: 240, f1: 180, dur: 0.06, wave: 'sine', vol: 0.05 },
ptero_spawn: { f0: 520, f1: 460, dur: 0.1, wave: 'sawtooth', vol: 0.05 },
meteor_spawn: { f0: 300, f1: 200, dur: 0.14, wave: 'sawtooth', vol: 0.06 },
meteor_land: { f0: 140, f1: 70, dur: 0.18, wave: 'square', vol: 0.08 },
hit: { f0: 260, f1: 140, dur: 0.1, wave: 'square', vol: 0.06 }
};
const p = presets[type];
if (!p) return;
osc.type = p.wave;
osc.frequency.setValueAtTime(p.f0, now);
osc.frequency.exponentialRampToValueAtTime(Math.max(40, p.f1), now + p.dur);
gain.gain.setValueAtTime(p.vol, now);
gain.gain.exponentialRampToValueAtTime(0.0001, now + p.dur);
osc.start(now);
osc.stop(now + p.dur);
} catch (_) {}
}
const worldWidth = 6000;
const waterGaps = [
{ x: 700, width: 130 },
@ -106,256 +16,68 @@ const waterGaps = [
{ x: 3900, width: 200 }
];
const lavaPuddles = [
{ x: 10600, width: 120 },
{ x: 11180, width: 180 },
{ x: 11850, width: 130 },
{ x: 12380, width: 180 }
];
const cacti = [
{ x: 2500, width: 28, height: 80 },
{ x: 2960, width: 32, height: 92 },
{ x: 3480, width: 24, height: 76 },
{ x: 4020, width: 30, height: 96 },
{ x: 4630, width: 32, height: 85 }
];
const monkeys = [
{ x: 5600, y: groundY - 150, width: 58, height: 42, vx: -140, range: [5450, 6050] },
{ x: 6500, y: groundY - 165, width: 62, height: 44, vx: 120, range: [6320, 7000] },
{ x: 7450, y: groundY - 152, width: 58, height: 42, vx: -130, range: [7250, 7800] }
];
const sabertooths = [
{ x: 5900, y: groundY - 42, width: 90, height: 42, vx: -160, range: [5600, 6800] },
{ x: 7100, y: groundY - 42, width: 96, height: 42, vx: 150, range: [6800, 7900] }
];
const mammoths = [
{ x: 8450, width: 160 },
{ x: 9300, width: 170 },
{ x: 9950, width: 165 }
];
function getBiomeAt(x) {
return BIOMES.find((b) => x >= b.start && x < b.end) || BIOMES[BIOMES.length - 1];
}
function getMaxHearts(accessMode) {
if (accessMode === 'vipPlus') return 9;
if (accessMode === 'vip') return 6;
return 3;
}
function createInitialState(config = gameConfig) {
const maxHearts = getMaxHearts(config.accessMode);
return {
running: false,
const state = {
running: true,
dead: false,
deadReason: '',
lastTs: performance.now(),
score: 0,
stepCarry: 0,
cameraX: 0,
hearts: maxHearts,
maxHearts,
hearts: 3,
hitCooldown: 0,
floatingTexts: [],
ants: [
{ x: 1000, y: groundY - 20, width: 22, height: 20, vx: -65, alive: true },
{ x: 1750, y: groundY - 20, width: 22, height: 20, vx: -70, alive: true },
{ x: 2600, y: groundY - 20, width: 22, height: 20, vx: -80, alive: true },
{ x: 3400, y: groundY - 20, width: 22, height: 20, vx: -75, alive: true }
],
monkeys: monkeys.map((m) => ({ ...m })),
sabertooths: sabertooths.map((s) => ({ ...s })),
mammoths: mammoths.map((m) => ({ ...m })),
pterodactyls: [],
pteroSpawnTimer: 0,
meteors: [],
meteorSpawnTimer: 0,
player: {
x: 160,
y: groundY - 76,
y: 0,
width: 64,
height: 76,
standingHeight: 76,
duckHeight: 48,
vx: 0,
vy: 0,
speed: 300 * DIFFICULTY[config.difficulty].moveSpeed,
speed: 300,
jumpPower: 760,
onGround: true,
ducking: false
}
};
}
let state = createInitialState(gameConfig);
let saveEligible = false;
let scoreSavedThisRun = false;
let saveInFlight = false;
const saveScoreBtnEl = saveScoreFormEl.querySelector('button[type="submit"]');
function setSaveFormBusy(isBusy) {
saveInFlight = isBusy;
playerNameEl.disabled = isBusy;
if (saveScoreBtnEl) saveScoreBtnEl.disabled = isBusy;
}
};
state.player.y = groundY - state.player.height;
window.addEventListener('keydown', (e) => {
if (["ArrowUp", "ArrowDown", "ArrowLeft", "ArrowRight"].includes(e.key)) e.preventDefault();
if (["ArrowUp", "ArrowDown", "ArrowLeft", "ArrowRight"].includes(e.key)) {
e.preventDefault();
}
keys.add(e.key);
if (e.key === 'ArrowUp' && state.player.onGround && state.running) {
if (e.key === 'ArrowUp' && state.player.onGround) {
state.player.vy = -state.player.jumpPower;
state.player.onGround = false;
playSfx('jump');
}
});
window.addEventListener('keyup', (e) => keys.delete(e.key));
startFormEl.addEventListener('submit', (e) => {
e.preventDefault();
const pass = passwordEl.value.trim();
if (pass !== '1027') {
startErrorEl.textContent = 'Wrong password. Try 1027.';
return;
}
gameConfig = {
accessMode: accessModeEl.value,
difficulty: difficultyEl.value
};
state = createInitialState(gameConfig);
keys.clear();
scoreSavedThisRun = false;
saveEligible = false;
setSaveFormBusy(false);
startScreenEl.classList.add('hidden');
deathScreenEl.classList.add('hidden');
state.running = true;
startErrorEl.textContent = '';
});
function restartToStartScreen() {
state = createInitialState(gameConfig);
keys.clear();
deathScreenEl.classList.add('hidden');
saveScoreFormEl.classList.add('hidden');
saveEligible = false;
scoreSavedThisRun = false;
setSaveFormBusy(false);
state.running = false;
state.dead = false;
accessModeEl.value = gameConfig.accessMode;
difficultyEl.value = gameConfig.difficulty;
passwordEl.value = '';
startErrorEl.textContent = '';
startScreenEl.classList.remove('hidden');
}
restartBtnEl.addEventListener('click', restartToStartScreen);
saveScoreFormEl.addEventListener('submit', async (e) => {
e.preventDefault();
if (!saveEligible || saveInFlight || scoreSavedThisRun) return;
const name = playerNameEl.value.trim() || 'Anonymous';
setSaveFormBusy(true);
try {
const res = await fetch('api/scores.php', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ name, score: state.score })
});
if (!res.ok) throw new Error('Score save failed');
saveEligible = false;
scoreSavedThisRun = true;
saveScoreFormEl.classList.add('hidden');
await populateLeaderboard();
} catch (err) {
console.error(err);
} finally {
setSaveFormBusy(false);
}
});
function drawBiomeParallax(biome) {
const farOffset = -(state.cameraX * 0.15);
const midOffset = -(state.cameraX * 0.35);
if (biome.name === 'Plains') {
ctx.fillStyle = 'rgba(255,255,255,0.7)';
for (let i = -1; i < 6; i++) ctx.fillRect(((i * 220 + farOffset) % 1300), 70 + (i % 2) * 18, 120, 22);
ctx.fillStyle = 'rgba(72,140,72,0.55)';
for (let i = -1; i < 8; i++) ctx.fillRect(((i * 170 + midOffset) % 1500), groundY - 90, 90, 90);
} else if (biome.name === 'Desert') {
ctx.fillStyle = 'rgba(232,187,120,0.55)';
for (let i = -1; i < 7; i++) ctx.fillRect(((i * 190 + farOffset) % 1500), groundY - 120, 160, 120);
ctx.fillStyle = 'rgba(180,135,70,0.6)';
for (let i = -1; i < 10; i++) ctx.fillRect(((i * 140 + midOffset) % 1600), groundY - 70, 26, 70);
} else if (biome.name === 'Jungle') {
ctx.fillStyle = 'rgba(40,106,50,0.45)';
for (let i = -1; i < 9; i++) ctx.fillRect(((i * 150 + farOffset) % 1600), groundY - 170, 80, 170);
ctx.fillStyle = 'rgba(27,78,38,0.62)';
for (let i = -1; i < 12; i++) ctx.fillRect(((i * 118 + midOffset) % 1700), groundY - 115, 40, 115);
} else if (biome.name === 'Snow') {
ctx.fillStyle = 'rgba(255,255,255,0.75)';
for (let i = -1; i < 8; i++) ctx.fillRect(((i * 180 + farOffset) % 1600), groundY - 145, 140, 145);
ctx.fillStyle = 'rgba(196,220,242,0.7)';
for (let i = -1; i < 10; i++) ctx.fillRect(((i * 140 + midOffset) % 1700), groundY - 92, 95, 92);
} else if (biome.name === 'Lava') {
ctx.fillStyle = 'rgba(98,58,54,0.7)';
for (let i = -1; i < 8; i++) ctx.fillRect(((i * 185 + farOffset) % 1600), groundY - 150, 150, 150);
ctx.fillStyle = 'rgba(255,128,40,0.45)';
for (let i = -1; i < 14; i++) ctx.fillRect(((i * 112 + midOffset) % 1800), groundY - 85, 18, 85);
}
}
function drawBackground() {
const camCenter = state.cameraX + canvas.width / 2;
const biome = getBiomeAt(camCenter);
ctx.fillStyle = biome.sky;
ctx.fillStyle = '#8ddcff';
ctx.fillRect(0, 0, canvas.width, canvas.height);
drawBiomeParallax(biome);
ctx.fillStyle = biome.ground;
ctx.fillStyle = '#88d34f';
ctx.fillRect(0, groundY, canvas.width, canvas.height - groundY);
// Water and lava pits
// Water gaps
for (const gap of waterGaps) {
const sx = gap.x - state.cameraX;
if (sx + gap.width < 0 || sx > canvas.width) continue;
ctx.fillStyle = '#2e8bcf';
ctx.fillRect(sx, groundY, gap.width, canvas.height - groundY);
}
for (const lava of lavaPuddles) {
const sx = lava.x - state.cameraX;
if (sx + lava.width < 0 || sx > canvas.width) continue;
ctx.fillStyle = '#ff5f1f';
ctx.fillRect(sx, groundY, lava.width, canvas.height - groundY);
}
// Cactus decoration + hazard body
ctx.fillStyle = '#2a8f4a';
for (const c of cacti) {
const sx = c.x - state.cameraX;
if (sx + c.width < 0 || sx > canvas.width) continue;
ctx.fillRect(sx, groundY - c.height, c.width, c.height);
ctx.fillRect(sx - 8, groundY - c.height + 24, 8, 18);
ctx.fillRect(sx + c.width, groundY - c.height + 26, 8, 18);
}
ctx.fillStyle = '#0f0f0f';
ctx.font = 'bold 20px Arial';
ctx.fillText(`Biome: ${biome.name}`, 18, 70);
ctx.fillText(`Difficulty: ${gameConfig.difficulty.toUpperCase()}`, 18, 96);
const modeLabel = gameConfig.accessMode === 'vipPlus' ? 'VIP+ MODE' : gameConfig.accessMode === 'vip' ? 'VIP MODE' : 'STANDARD';
ctx.fillText(modeLabel, 18, 122);
}
function drawTRex(p) {
@ -375,46 +97,8 @@ function drawAnts() {
const sx = ant.x - state.cameraX;
if (sx + ant.width < 0 || sx > canvas.width) continue;
ctx.fillRect(sx, ant.y, ant.width, ant.height);
}
}
function drawMonkeys() {
ctx.fillStyle = '#6a3f1f';
for (const m of state.monkeys) {
const sx = m.x - state.cameraX;
if (sx + m.width < 0 || sx > canvas.width) continue;
ctx.fillRect(sx, m.y, m.width, m.height);
ctx.fillRect(sx + m.width / 2 - 3, m.y - 18, 6, 18); // vine
}
}
function drawSabertooths() {
ctx.fillStyle = '#c6884e';
for (const s of state.sabertooths) {
const sx = s.x - state.cameraX;
if (sx + s.width < 0 || sx > canvas.width) continue;
ctx.fillRect(sx, s.y, s.width, s.height);
ctx.fillStyle = '#fff';
ctx.fillRect(sx + s.width - 22, s.y + 26, 4, 12);
ctx.fillRect(sx + s.width - 14, s.y + 26, 4, 12);
ctx.fillStyle = '#c6884e';
}
}
function drawMammoths() {
for (const m of state.mammoths) {
const sx = m.x - state.cameraX;
if (sx + m.width < 0 || sx > canvas.width) continue;
// body
ctx.fillStyle = '#7c8ea1';
ctx.fillRect(sx, groundY - 130, m.width, 70);
// legs
ctx.fillRect(sx + 14, groundY - 60, 24, 60);
ctx.fillRect(sx + m.width - 38, groundY - 60, 24, 60);
// tusk hint
ctx.fillStyle = '#f3f3f3';
ctx.fillRect(sx + m.width - 6, groundY - 70, 8, 24);
ctx.fillRect(sx - 4, ant.y + 6, 4, 4);
ctx.fillRect(sx + ant.width, ant.y + 6, 4, 4);
}
}
@ -424,6 +108,8 @@ function drawPterodactyls() {
const sx = p.x - state.cameraX;
if (sx + p.width < 0 || sx > canvas.width) continue;
ctx.fillRect(sx, p.y, p.width, p.height);
ctx.fillRect(sx - 8, p.y + 6, 8, 4);
ctx.fillRect(sx + p.width, p.y + 6, 8, 4);
}
}
@ -436,72 +122,27 @@ function drawMeteors() {
}
}
function addFloatingText(x, y, text, color = '#ffe066') {
state.floatingTexts.push({ x, y, text, color, ttl: 0.8, vy: -36 });
function intersects(a, b) {
return a.x < b.x + b.width && a.x + a.width > b.x && a.y < b.y + b.height && a.y + a.height > b.y;
}
function updateFloatingTexts(dt) {
for (const t of state.floatingTexts) {
t.ttl -= dt;
t.y += t.vy * dt;
}
state.floatingTexts = state.floatingTexts.filter((t) => t.ttl > 0);
}
function drawFloatingTexts() {
ctx.save();
ctx.font = 'bold 22px Arial';
ctx.textAlign = 'center';
for (const t of state.floatingTexts) {
const alpha = Math.max(0, Math.min(1, t.ttl / 0.8));
ctx.globalAlpha = alpha;
ctx.fillStyle = t.color;
ctx.fillText(t.text, t.x - state.cameraX, t.y);
}
ctx.restore();
}
const intersects = (a, b) => a.x < b.x + b.width && a.x + a.width > b.x && a.y < b.y + b.height && a.y + a.height > b.y;
function updateHeartsUI() {
const active = '<span class="heart heart-active">❤</span>'.repeat(state.hearts);
const lost = '<span class="heart heart-lost">❤</span>'.repeat(Math.max(0, state.maxHearts - state.hearts));
heartsEl.innerHTML = active + lost;
heartsEl.textContent = '❤'.repeat(state.hearts) + '🖤'.repeat(Math.max(0, 3 - state.hearts));
}
async function loadTopScores() {
const res = await fetch('api/scores.php');
return res.ok ? res.json() : [];
}
async function populateLeaderboard() {
const scores = await loadTopScores();
leaderboardEl.innerHTML = '';
scores.forEach((s) => {
const li = document.createElement('li');
li.textContent = `${s.name}${s.score}`;
leaderboardEl.appendChild(li);
});
const qualifies = scores.length < 10 || state.score > (scores[scores.length - 1]?.score ?? -1);
saveEligible = qualifies && !scoreSavedThisRun && !saveInFlight;
saveScoreFormEl.classList.toggle('hidden', !saveEligible);
}
async function kill(reason) {
if (state.dead) return;
function kill(reason) {
state.running = false;
state.dead = true;
state.deadReason = reason;
finalScoreEl.textContent = `Final Score: ${state.score}${reason}`;
await populateLeaderboard();
deathScreenEl.classList.remove('hidden');
}
function applyHit(reason) {
if (state.hitCooldown > 0 || state.dead) return;
state.hearts -= 1;
state.hitCooldown = DIFFICULTY[gameConfig.difficulty].hitCooldown;
playSfx('hit');
if (state.hearts <= 0) kill(reason);
state.hitCooldown = 1.0;
if (state.hearts <= 0) {
kill(reason);
}
}
function isOverWater(player) {
@ -509,20 +150,16 @@ function isOverWater(player) {
return waterGaps.some((g) => centerX >= g.x && centerX <= g.x + g.width);
}
function isOverLava(player) {
const centerX = player.x + player.width / 2;
return lavaPuddles.some((l) => centerX >= l.x && centerX <= l.x + l.width);
}
function updateAnts(dt) {
const p = state.player;
const prevBottom = p.y + p.height - p.vy * dt;
for (const ant of state.ants) {
if (!ant.alive) continue;
ant.x += ant.vx * dt;
if (ant.x < 200) ant.vx = Math.abs(ant.vx);
if (ant.x > 5100) ant.vx = -Math.abs(ant.vx);
if (ant.x > worldWidth - 200) ant.vx = -Math.abs(ant.vx);
if (intersects(p, ant)) {
const playerBottom = p.y + p.height;
@ -530,9 +167,6 @@ function updateAnts(dt) {
if (stomped) {
ant.alive = false;
p.vy = -380;
state.score += 50;
addFloatingText(ant.x + ant.width / 2, ant.y - 10, '+50', '#ffe066');
playSfx('squish');
} else {
applyHit('A swarm of ants got you.');
}
@ -540,107 +174,45 @@ function updateAnts(dt) {
}
}
function updateCactus() {
const p = state.player;
for (const c of cacti) {
const hitbox = { x: c.x, y: groundY - c.height, width: c.width, height: c.height };
if (intersects(p, hitbox)) applyHit('Cactus spike!');
}
}
function updateMonkeys(dt) {
const p = state.player;
for (const m of state.monkeys) {
m.x += m.vx * dt;
if (m.x < m.range[0]) m.vx = Math.abs(m.vx);
if (m.x > m.range[1]) m.vx = -Math.abs(m.vx);
if (intersects(p, m) && !p.ducking) {
applyHit('Monkey swing! Duck under them.');
}
}
}
function updateSabertooths(dt) {
const p = state.player;
for (const s of state.sabertooths) {
s.x += s.vx * dt;
if (s.x < s.range[0]) s.vx = Math.abs(s.vx);
if (s.x > s.range[1]) s.vx = -Math.abs(s.vx);
if (intersects(p, s)) applyHit('Sabertooth tiger attack!');
}
}
function updateMammoths() {
const p = state.player;
for (const m of state.mammoths) {
const body = { x: m.x, y: groundY - 130, width: m.width, height: 70 };
const leftLeg = { x: m.x + 14, y: groundY - 60, width: 24, height: 60 };
const rightLeg = { x: m.x + m.width - 38, y: groundY - 60, width: 24, height: 60 };
if (intersects(p, body) || intersects(p, leftLeg) || intersects(p, rightLeg)) {
if (!p.ducking) {
applyHit('Mammoth stomp! Duck through the legs.');
}
}
}
}
const PTERODACTYL_LANES = [{ y: groundY - 80, height: 28 }];
function getPterodactylHitbox(flyer) {
return { x: flyer.x + 8, y: flyer.y + 6, width: flyer.width - 16, height: flyer.height - 12 };
}
function getPlayerHitboxForAirHazards(player) {
const widthInset = player.ducking ? 8 : 6;
const topInset = player.ducking ? 8 : 4;
return {
x: player.x + widthInset,
y: player.y + topInset,
width: player.width - widthInset * 2,
height: player.height - topInset - 2
};
}
function updatePterodactyls(dt) {
if (state.score <= DIFFICULTY[gameConfig.difficulty].pteroUnlock) return;
state.pteroSpawnTimer -= dt;
if (state.score <= 100) return;
state.pteroSpawnTimer -= dt;
if (state.pteroSpawnTimer <= 0) {
const lane = PTERODACTYL_LANES[0];
const speedMul = DIFFICULTY[gameConfig.difficulty].hazardSpeed;
state.pterodactyls.push({ x: state.cameraX + canvas.width + 80, y: lane.y, width: 54, height: lane.height, vx: -280 * speedMul });
playSfx('ptero_spawn');
state.pteroSpawnTimer = DIFFICULTY[gameConfig.difficulty].pteroSpawn;
const altitude = groundY - (state.player.standingHeight - 24);
state.pterodactyls.push({
x: state.cameraX + canvas.width + 80,
y: altitude,
width: 54,
height: 26,
vx: -280
});
state.pteroSpawnTimer = 2.2;
}
const p = state.player;
const playerHitbox = getPlayerHitboxForAirHazards(p);
for (const flyer of state.pterodactyls) {
flyer.x += flyer.vx * dt;
if (intersects(playerHitbox, getPterodactylHitbox(flyer))) applyHit('Pterodactyl collision. Duck next time!');
if (intersects(p, flyer)) {
applyHit('Pterodactyl collision. Duck next time!');
}
}
state.pterodactyls = state.pterodactyls.filter((f) => f.x + f.width > state.cameraX - 150);
}
function updateMeteors(dt) {
if (state.score <= DIFFICULTY[gameConfig.difficulty].meteorUnlock) return;
state.meteorSpawnTimer -= dt;
if (state.score <= 250) return;
state.meteorSpawnTimer -= dt;
if (state.meteorSpawnTimer <= 0) {
const spawnX = state.cameraX + 80 + Math.random() * (canvas.width - 160);
state.meteors.push({ x: spawnX, y: -30, width: 24, height: 30, vy: 420 * DIFFICULTY[gameConfig.difficulty].hazardSpeed, landed: false });
playSfx('meteor_spawn');
state.meteorSpawnTimer = DIFFICULTY[gameConfig.difficulty].meteorSpawn;
state.meteors.push({ x: spawnX, y: -30, width: 24, height: 30, vy: 420 });
state.meteorSpawnTimer = 1.5;
}
const p = state.player;
for (const m of state.meteors) {
m.y += m.vy * dt;
if (!m.landed && m.y + m.height >= groundY) {
m.landed = true;
playSfx('meteor_land');
}
if (intersects(p, m)) {
applyHit('Meteor strike!');
m.y = canvas.height + 100;
@ -655,10 +227,7 @@ function updatePlayer(dt) {
if (keys.has('ArrowLeft')) move -= 1;
if (keys.has('ArrowRight')) move += 1;
const wasDucking = p.ducking;
p.ducking = keys.has('ArrowDown') && p.onGround;
if (!wasDucking && p.ducking) playSfx('duck');
const targetHeight = p.ducking ? p.duckHeight : p.standingHeight;
if (targetHeight !== p.height) {
p.y += p.height - targetHeight;
@ -685,8 +254,10 @@ function updatePlayer(dt) {
p.y = groundY - p.height;
p.vy = 0;
p.onGround = true;
if (isOverWater(p)) kill('SPLASH! Water is instant death.');
if (isOverLava(p)) kill('LAVA! Instant death.');
if (isOverWater(p)) {
kill('SPLASH! Water is instant death.');
}
} else {
p.onGround = false;
}
@ -694,6 +265,17 @@ function updatePlayer(dt) {
state.cameraX = Math.max(0, Math.min(worldWidth - canvas.width, p.x - 240));
}
function drawDeathText() {
if (!state.dead) return;
ctx.fillStyle = 'rgba(0,0,0,0.55)';
ctx.fillRect(0, 0, canvas.width, canvas.height);
ctx.fillStyle = '#fff';
ctx.font = 'bold 42px Arial';
ctx.fillText('Game Over', 360, 220);
ctx.font = '24px Arial';
ctx.fillText(state.deadReason, 280, 270);
}
function tick(ts) {
const dt = Math.min((ts - state.lastTs) / 1000, 0.05);
state.lastTs = ts;
@ -702,25 +284,17 @@ function tick(ts) {
state.hitCooldown = Math.max(0, state.hitCooldown - dt);
updatePlayer(dt);
updateAnts(dt);
updateCactus();
updateMonkeys(dt);
updateSabertooths(dt);
updateMammoths();
updatePterodactyls(dt);
updateMeteors(dt);
updateFloatingTexts(dt);
}
ctx.clearRect(0, 0, canvas.width, canvas.height);
drawBackground();
drawAnts();
drawMonkeys();
drawSabertooths();
drawMammoths();
drawPterodactyls();
drawMeteors();
drawFloatingTexts();
drawTRex(state.player);
drawDeathText();
scoreEl.textContent = `Score: ${state.score}`;
updateHeartsUI();

View File

@ -25,8 +25,7 @@ body {
border: 2px solid #1b3a47;
background: #b5ecff;
}
#deathScreen,
#startScreen {
#deathScreen {
position: fixed;
inset: 0;
background: rgba(0,0,0,0.65);
@ -41,37 +40,9 @@ body {
width: min(92vw, 460px);
}
.hidden { display: none !important; }
button, input, select {
button, input {
font-size: 16px;
padding: 8px 10px;
margin-top: 8px;
width: 100%;
}
label {
display: block;
margin-top: 10px;
font-weight: 700;
}
.inline-option {
display: flex;
align-items: center;
gap: 8px;
}
.inline-option input {
width: auto;
margin: 0;
}
.error {
color: #c62828;
min-height: 20px;
}
ol { padding-left: 22px; }
/* removed unused play-again-row styles */
.heart {
display: inline-block;
margin-right: 2px;
}
.heart-active { color: #f2c94c; }
.heart-lost { color: #111; }