Space Invaders · qwen3-30b-a3b-instruct-2507
Output saved · Stopped by an API error Cost / run $0.0027 Runtime 265.8s
A model request failed and its retries ran out. The output is the HTML saved before that.
Prompt for this run
Build a playable Space Invaders-style game on a canvas using procedural graphics. Use HTML, CSS, and JavaScript as needed. Write it to `index.html` in the current working directory using your file tools. Inline your own CSS and JavaScript. Do not use external assets, CDNs, or network requests. No third-party libraries are provided. Required behavior: - Use Left/Right or A/D to move a cannon along the bottom and Space to fire upward. Display the controls and keep the cannon within the playfield. - Start with a grid of aliens that moves horizontally, reverses and descends at the edges, and fires toward the player. Player shots remove hit aliens and increase score once. - Place destructible bunkers between the cannon and aliens. Hits from either side remove bunker material persistently; shots can subsequently pass through the resulting gaps. - Start with three lives. Enemy shots cost a life with brief protection from repeated damage. Aliens reaching the player zone or zero lives causes Game Over; clearing the aliens shows a win state. - Provide Restart to restore aliens, bunkers, score, lives, and player position. Bound projectile lifetime and fire rate. Verify: Test movement and firing during the opening formation. Check alien motion and inspect a shot hitting a bunker or alien for visible damage or score feedback. Use Restart and check the initial formation, bunkers, lives, and score.
TAKE IT TO CODE
A single self-contained HTML file — copy it and open in any browser, or reuse the prompt with your own pi-agent run.
RUN
METRICS
Transcript · 40 messages
Build a playable Space Invaders-style game on a canvas using procedural graphics. Use HTML, CSS, and JavaScript as needed. Write it to `index.html` in the current working directory using your file tools. Inline your own CSS and JavaScript. Do not use external assets, CDNs, or network requests. No third-party libraries are provided. Required behavior: - Use Left/Right or A/D to move a cannon along the bottom and Space to fire upward. Display the controls and keep the cannon within the playfield. - Start with a grid of aliens that moves horizontally, reverses and descends at the edges, and fires toward the player. Player shots remove hit aliens and increase score once. - Place destructible bunkers between the cannon and aliens. Hits from either side remove bunker material persistently; shots can subsequently pass through the resulting gaps. - Start with three lives. Enemy shots cost a life with brief protection from repeated damage. Aliens reaching the player zone or zero lives causes Game Over; clearing the aliens shows a win state. - Provide Restart to restore aliens, bunkers, score, lives, and player position. Bound projectile lifetime and fire rate. Verify: Test movement and firing during the opening formation. Check alien motion and inspect a shot hitting a bunker or alien for visible damage or score feedback. Use Restart and check the initial formation, bunkers, lives, and score.
index.html (15867 bytes)Successfully wrote to index.html
{"action":"reload"}{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing.","error: Assignment to constant variable."],"dom":"Score: 0\nLives: 3\nUse ← → or A/D to move\nPress SPACE to fire","images":"model does not support images"}
{"path":"index.html","edits":[{"oldText":" // Player\n const player = {\n x: canvas.width / 2 - 25,\n y: canvas.height - 60,Successfully replaced 3 block(s) in index.html.
{"action":"reload"}{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing.","error: Identifier 'lastShotTime' has already been declared"],"dom":"Score: 0\nLives: 3\nUse ← → or A/D to move\nPress SPACE to fire","images":"model does not support images"}
{"path":"index.html","edits":[{"oldText":" // Game state\n let score = 0;\n let lives = 3;\n let gameOver = false;\n let gameNo changes made to index.html. The replacement produced identical content. This might indicate an issue with special characters or the text not existing as expected.
{"path":"index.html"}<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Space Invaders</title> <style> body { margin: 0; display: flex; justify-content: center; align-items: center; height: 100vh; background-color: #000; color: white; font-family: 'Courier New', monospace; overflow: hidden; } #game-container { position: relative; width: 600px; height: 700px; border: 2px solid #333; overflow: hidden; } canvas { display: block; background-color: #000; } #ui { position: absolute; top: 10px; left: 10px; font-size: 16px; color: #0f0; text-shadow: 0 0 5px #0f0; } #controls { position: absolute; bottom: 20px; left: 10px; font-size: 12px; color: #aaa; text-shadow: 0 0 3px #aaa; } #game-over, #win { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); background-color: rgba(0, 0, 0, 0.8); padding: 20px 40px; border: 2px solid #f00; border-radius: 8px; text-align: center; display: none; } button { margin-top: 15px; padding: 8px 16px; background-color: #0f0; color: #000; border: none; border-radius: 4px; cursor: pointer; font-weight: bold; } button:hover { background-color: #0c0; } </style> </head> <body> <div id="game-container"> <canvas id="game-canvas" width="600" height="700"></canvas> <div id="ui"> Score: <span id="score">0</span><br> Lives: <span id="lives">3</span> </div> <div id="controls"> Use ← → or A/D to move<br> Press SPACE to fire </div> <div id="game-over"> <h2>Game Over</h2> <p>Your score: <span id="final-score">0</span></p> <button id="restart-game-over">Restart</button> </div> <div id="win"> <h2>You Win!</h2> <p>Score: <span id="win-score">0</span></p> <button id="restart-win">Restart</button> </div> </div> <script> // Game canvas and context const canvas = document.getElementById('game-canvas'); const ctx = canvas.getContext('2d'); // Game state let score = 0; let lives = 3; let gameOver = false; let gameWon = false; let gameStarted = false; let lastShotTime = 0; let lastEnemyShotTime = 0; let enemyShotCooldown = 150 + Math.random() * 150; // Player let player = { x: canvas.width / 2 - 25, y: canvas.height - 60, width: 50, height: 20, speed: 6, dx: 0, isInvulnerable: false, invulnerabilityTimer: 0 }; // Bullets const bullets = []; const enemyBullets = []; const bulletSpeed = 8; const enemyBulletSpeed = 5; const bulletCooldown = 30; // frames between shots let lastShotTime = 0; let lastEnemyShotTime = 0; const enemyShotCooldown = 150 + Math.random() * 150; // Randomized // Aliens let alienRows = 5; let alienCols = 10; let alienWidth = 40; let alienHeight = 30; let alienPadding = 10; let alienSpeed = 1.5; let aliens = []; let alienDirection = 1; // 1 for right, -1 for left let alienDropDistance = 20; // Bunkers let bunkerRows = 3; let bunkerCols = 5; let bunkerWidth = 60; let bunkerHeight = 20; let bunkerPadding = 10; let bunkerCount = 4; let bunkerX = [50, 170, 310, 430]; let bunkerY = canvas.height - 140; let bunkerMaterial = 3; // Number of hits to destroy let bunkers = []; // Initialize aliens function initAliens() { aliens = []; for (let row = 0; row < alienRows; row++) { for (let col = 0; col < alienCols; col++) { aliens.push({ x: col * (alienWidth + alienPadding) + 50, y: row * (alienHeight + alienPadding) + 50, width: alienWidth, height: alienHeight, alive: true, type: row === 0 ? 's' : row < 3 ? 'm' : 'l' }); } } } // Initialize bunkers function initBunkers() { bunkers = []; for (let i = 0; i < bunkerCount; i++) { const bunker = { x: bunkerX[i], y: bunkerY, width: bunkerWidth, height: bunkerHeight, material: [], rows: bunkerRows, cols: bunkerCols }; // Initialize material array for (let r = 0; r < bunker.rows; r++) { bunker.material[r] = []; for (let c = 0; c < bunker.cols; c++) { bunker.material[r][c] = bunkerMaterial; } } bunkers.push(bunker); } } // Reset game function resetGame() { score = 0; lives = 3; gameOver = false; gameWon = false; player.x = canvas.width / 2 - 25; player.dx = 0; player.isInvulnerable = false; bullets.length = 0; enemyBullets.length = 0; alienDirection = 1; lastShotTime = 0; lastEnemyShotTime = 0; initAliens(); initBunkers(); updateUI(); gameStarted = true; requestAnimationFrame(gameLoop); } // Update UI function updateUI() { document.getElementById('score').textContent = score; document.getElementById('lives').textContent = lives; } // Draw player cannon function drawPlayer() { // Cannon base ctx.fillStyle = '#0f0'; ctx.fillRect(player.x, player.y, player.width, player.height); // Cannon barrel ctx.fillStyle = '#0c0'; ctx.fillRect(player.x + player.width / 2 - 5, player.y - 10, 10, 10); // Player glow effect when invulnerable if (player.isInvulnerable) { ctx.strokeStyle = '#0ff'; ctx.lineWidth = 3; ctx.strokeRect(player.x - 5, player.y - 5, player.width + 10, player.height + 10); } } // Draw bullets function drawBullets() { ctx.fillStyle = '#fff'; bullets.forEach(bullet => { ctx.fillRect(bullet.x, bullet.y, 4, 10); }); ctx.fillStyle = '#f00'; enemyBullets.forEach(bullet => { ctx.fillRect(bullet.x, bullet.y, 4, 10); }); } // Draw aliens function drawAliens() { aliens.forEach(alien => { if (!alien.alive) return; ctx.fillStyle = '#f00'; if (alien.type === 's') ctx.fillStyle = '#00f'; else if (alien.type === 'm') ctx.fillStyle = '#ff0'; else if (alien.type === 'l') ctx.fillStyle = '#f00'; ctx.fillRect(alien.x, alien.y, alien.width, alien.height); // Alien eyes ctx.fillStyle = '#fff'; ctx.fillRect(alien.x + 8, alien.y + 8, 6, 6); ctx.fillRect(alien.x + alien.width - 14, alien.y + 8, 6, 6); }); } // Draw bunkers function drawBunkers() { bunkers.forEach(bunker => { for (let r = 0; r < bunker.rows; r++) { for (let c = 0; c < bunker.cols; c++) { if (bunker.material[r][c] > 0) { const x = bunker.x + c * (bunkerWidth / bunker.cols) + 2; const y = bunker.y + r * (bunkerHeight / bunkerRows) + 2; const w = bunkerWidth / bunker.cols - 4; const h = bunkerHeight / bunkerRows - 4; ctx.fillStyle = '#0f0'; ctx.fillRect(x, y, w, h); // Add highlight ctx.fillStyle = '#0c0'; ctx.fillRect(x + 1, y + 1, w - 2, h - 2); } } } }); } // Handle player movement function handlePlayerMovement() { player.x += player.dx; // Keep player within bounds if (player.x < 0) player.x = 0; if (player.x + player.width > canvas.width) player.x = canvas.width - player.width; // Reset invulnerability timer if (player.isInvulnerable) { player.invulnerabilityTimer--; if (player.invulnerabilityTimer <= 0) { player.isInvulnerable = false; } } } // Fire bullets function fireBullet() { const now = Date.now(); if (now - lastShotTime > bulletCooldown) { bullets.push({ x: player.x + player.width / 2 - 2, y: player.y - 10, width: 4, height: 10 }); lastShotTime = now; } } // Enemy AI function enemyAI() { const now = Date.now(); // Decide if enemy should fire if (now - lastEnemyShotTime > enemyShotCooldown) { const aliveAliens = aliens.filter(a => a.alive); if (aliveAliens.length > 0) { const randomAlien = aliveAliens[Math.floor(Math.random() * aliveAliens.length)]; enemyBullets.push({ x: randomAlien.x + randomAlien.width / 2 - 2, y: randomAlien.y + randomAlien.height, width: 4, height: 10 }); lastEnemyShotTime = now; // Randomize next shot time enemyShotCooldown = 150 + Math.random() * 150; } } } // Move aliens function moveAliens() { let moveDown = false; // Check if aliens hit the wall for (let alien of aliens) { if (!alien.alive) continue; if (alien.x <= 0 && alienDirection < 0) { moveDown = true; alienDirection = 1; } if (alien.x + alien.width >= canvas.width && alienDirection > 0) { moveDown = true; alienDirection = -1; } } // Move aliens for (let alien of aliens) { if (!alien.alive) continue; alien.x += alienSpeed * alienDirection; // Move down if needed if (moveDown) { alien.y += alienDropDistance; // Game over if aliens reach player zone if (alien.y + alien.height >= player.y) { gameOver = true; showGameOver(); return; } } } } // Check collisions function checkCollisions() { // Player bullets vs aliens for (let i = bullets.length - 1; i >= 0; i--) { const bullet = bullets[i]; let hit = false; for (let j = 0; j < aliens.length; j++) { const alien = aliens[j]; if (!alien.alive) continue; if (bullet.x < alien.x + alien.width && bullet.x + bullet.width > alien.x && bullet.y < alien.y + alien.height && bullet.y + bullet.height > alien.y) { // Hit alien alien.alive = false; bullets.splice(i, 1); score += alien.type === 's' ? 10 : alien.type === 'm' ? 20 : 30; updateUI(); hit = true; break; } } // Check if bullet escaped if (!hit) { if (bullet.y < 0) { bullets.splice(i, 1); } } } // Enemy bullets vs player for (let i = enemyBullets.length - 1; i >= 0; i--) { const bullet = enemyBullets[i]; if (bullet.x < player.x + player.width && bullet.x + bullet.width > player.x && bullet.y < player.y + player.height && bullet.y + bullet.height > player.y) { // Hit player if (!player.isInvulnerable) { lives--; player.isInvulnerable = true; player.invulnerabilityTimer = 120; // 2 seconds at 60fps updateUI(); if (lives <= 0) { gameOver = true; showGameOver(); return; } } enemyBullets.splice(i, 1); } else if (bullet.y > canvas.height) { enemyBullets.splice(i, 1); } } // Bullets vs bunkers for (let i = bullets.length - 1; i >= 0; i--) { const bullet = bullets[i]; for (let bunker of bunkers) { const bunkerX = bunker.x; const bunkerY = bunker.y; const bunkerWidth = bunker.width; const bunkerHeight = bunker.height; const cols = bunker.cols; const rows = bunker.rows; const cellWidth = bunkerWidth / cols; const cellHeight = bunkerHeight / rows; const col = Math.floor((bullet.x - bunkerX) / cellWidth); const row = Math.floor((bullet.y - bunkerY) / cellHeight); if (col >= 0 && col < cols && row >= 0 && row < rows && bunker.material[row][col] > 0) { bunker.material[row][col]--; // Remove bullet bullets.splice(i, 1); break; } } } // Enemy bullets vs bunkers for (let i = enemyBullets.length - 1; i >= 0; i--) { const bullet = enemyBullets[i]; for (let bunker of bunkers) { const bunkerX = bunker.x; const bunkerY = bunker.y; const bunkerWidth = bunker.width; const bunkerHeight = bunker.height; const cols = bunker.cols; const rows = bunker.rows; const cellWidth = bunkerWidth / cols; const cellHeight = bunkerHeight / rows; const col = Math.floor((bullet.x - bunkerX) / cellWidth); const row = Math.floor((bullet.y - bunkerY) / cellHeight); if (col >= 0 && col < cols && row >= 0 && row < rows && bunker.material[row][col] > 0) { bunker.material[row][col]--; // Remove bullet enemyBullets.splice(i, 1); break; } } } // Check win condition const aliveAliens = aliens.filter(a => a.alive); if (aliveAliens.length === 0) { gameWon = true; showWin(); } } // Show Game Over function showGameOver() { document.getElementById('game-over').style.display = 'block'; document.getElementById('final-score').textContent = score; } // Show Win function showWin() { document.getElementById('win').style.display = 'block'; document.getElementById('win-score').textContent = score; } // Game loop function gameLoop() { if (gameOver) return; if (gameWon) return; // Clear canvas ctx.clearRect(0, 0, canvas.width, canvas.height); // Update game state handlePlayerMovement(); enemyAI(); moveAliens(); checkCollisions(); // Draw everything drawBunkers(); drawAliens(); drawPlayer(); drawBullets(); // Continue loop requestAnimationFrame(gameLoop); } // Handle keyboard input document.addEventListener('keydown', (e) => { if (gameOver || gameWon) return; if (e.key === 'ArrowLeft' || e.key === 'a' || e.key === 'A') { player.dx = -player.speed; } if (e.key === 'ArrowRight' || e.key === 'd' || e.key === 'D') { player.dx = player.speed; } if (e.key === ' ' && !gameOver && !gameWon) { fireBullet(); } }); document.addEventListener('keyup', (e) => { if (e.key === 'ArrowLeft' || e.key === 'a' || e.key === 'A') { if (player.dx < 0) player.dx = 0; } if (e.key === 'ArrowRight' || e.key === 'd' || e.key === 'D') { if (player.dx > 0) player.dx = 0; } }); // Restart button document.getElementById('restart-game-over').addEventListener('click', resetGame); document.getElementById('restart-win').addEventListener('click', resetGame); // Start game resetGame(); </script> </body> </html>
{"path":"index.html","edits":[{"oldText":" // Game state\n let score = 0;\n let lives = 3;\n let gameOver = false;\n let gameSuccessfully replaced 1 block(s) in index.html.
{"action":"reload"}{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing.","error: Assignment to constant variable."],"dom":"Score: 0\nLives: 3\nUse ← → or A/D to move\nPress SPACE to fire","images":"model does not support images"}
{"path":"index.html","edits":[{"oldText":" // Game state\n let score = 0;\n let lives = 3;\n let gameOver = false;\n let gameSuccessfully replaced 1 block(s) in index.html.
{"action":"reload"}{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing.","error: Identifier 'lastShotTime' has already been declared"],"dom":"Score: 0\nLives: 3\nUse ← → or A/D to move\nPress SPACE to fire","images":"model does not support images"}
{"path":"index.html"}<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Space Invaders</title> <style> body { margin: 0; display: flex; justify-content: center; align-items: center; height: 100vh; background-color: #000; color: white; font-family: 'Courier New', monospace; overflow: hidden; } #game-container { position: relative; width: 600px; height: 700px; border: 2px solid #333; overflow: hidden; } canvas { display: block; background-color: #000; } #ui { position: absolute; top: 10px; left: 10px; font-size: 16px; color: #0f0; text-shadow: 0 0 5px #0f0; } #controls { position: absolute; bottom: 20px; left: 10px; font-size: 12px; color: #aaa; text-shadow: 0 0 3px #aaa; } #game-over, #win { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); background-color: rgba(0, 0, 0, 0.8); padding: 20px 40px; border: 2px solid #f00; border-radius: 8px; text-align: center; display: none; } button { margin-top: 15px; padding: 8px 16px; background-color: #0f0; color: #000; border: none; border-radius: 4px; cursor: pointer; font-weight: bold; } button:hover { background-color: #0c0; } </style> </head> <body> <div id="game-container"> <canvas id="game-canvas" width="600" height="700"></canvas> <div id="ui"> Score: <span id="score">0</span><br> Lives: <span id="lives">3</span> </div> <div id="controls"> Use ← → or A/D to move<br> Press SPACE to fire </div> <div id="game-over"> <h2>Game Over</h2> <p>Your score: <span id="final-score">0</span></p> <button id="restart-game-over">Restart</button> </div> <div id="win"> <h2>You Win!</h2> <p>Score: <span id="win-score">0</span></p> <button id="restart-win">Restart</button> </div> </div> <script> // Game canvas and context const canvas = document.getElementById('game-canvas'); const ctx = canvas.getContext('2d'); // Game state let score = 0; let lives = 3; let gameOver = false; let gameWon = false; let gameStarted = false; let lastShotTime = 0; let lastEnemyShotTime = 0; let enemyShotCooldown = 150 + Math.random() * 150; // Player let player = { x: canvas.width / 2 - 25, y: canvas.height - 60, width: 50, height: 20, speed: 6, dx: 0, isInvulnerable: false, invulnerabilityTimer: 0 }; // Bullets const bullets = []; const enemyBullets = []; const bulletSpeed = 8; const enemyBulletSpeed = 5; const bulletCooldown = 30; // frames between shots let lastShotTime = 0; let lastEnemyShotTime = 0; const enemyShotCooldown = 150 + Math.random() * 150; // Randomized // Aliens let alienRows = 5; let alienCols = 10; let alienWidth = 40; let alienHeight = 30; let alienPadding = 10; let alienSpeed = 1.5; let aliens = []; let alienDirection = 1; // 1 for right, -1 for left let alienDropDistance = 20; // Bunkers let bunkerRows = 3; let bunkerCols = 5; let bunkerWidth = 60; let bunkerHeight = 20; let bunkerPadding = 10; let bunkerCount = 4; let bunkerX = [50, 170, 310, 430]; let bunkerY = canvas.height - 140; let bunkerMaterial = 3; // Number of hits to destroy let bunkers = []; // Initialize aliens function initAliens() { aliens = []; for (let row = 0; row < alienRows; row++) { for (let col = 0; col < alienCols; col++) { aliens.push({ x: col * (alienWidth + alienPadding) + 50, y: row * (alienHeight + alienPadding) + 50, width: alienWidth, height: alienHeight, alive: true, type: row === 0 ? 's' : row < 3 ? 'm' : 'l' }); } } } // Initialize bunkers function initBunkers() { bunkers = []; for (let i = 0; i < bunkerCount; i++) { const bunker = { x: bunkerX[i], y: bunkerY, width: bunkerWidth, height: bunkerHeight, material: [], rows: bunkerRows, cols: bunkerCols }; // Initialize material array for (let r = 0; r < bunker.rows; r++) { bunker.material[r] = []; for (let c = 0; c < bunker.cols; c++) { bunker.material[r][c] = bunkerMaterial; } } bunkers.push(bunker); } } // Reset game function resetGame() { score = 0; lives = 3; gameOver = false; gameWon = false; player.x = canvas.width / 2 - 25; player.dx = 0; player.isInvulnerable = false; bullets.length = 0; enemyBullets.length = 0; alienDirection = 1; lastShotTime = 0; lastEnemyShotTime = 0; initAliens(); initBunkers(); updateUI(); gameStarted = true; requestAnimationFrame(gameLoop); } // Update UI function updateUI() { document.getElementById('score').textContent = score; document.getElementById('lives').textContent = lives; } // Draw player cannon function drawPlayer() { // Cannon base ctx.fillStyle = '#0f0'; ctx.fillRect(player.x, player.y, player.width, player.height); // Cannon barrel ctx.fillStyle = '#0c0'; ctx.fillRect(player.x + player.width / 2 - 5, player.y - 10, 10, 10); // Player glow effect when invulnerable if (player.isInvulnerable) { ctx.strokeStyle = '#0ff'; ctx.lineWidth = 3; ctx.strokeRect(player.x - 5, player.y - 5, player.width + 10, player.height + 10); } } // Draw bullets function drawBullets() { ctx.fillStyle = '#fff'; bullets.forEach(bullet => { ctx.fillRect(bullet.x, bullet.y, 4, 10); }); ctx.fillStyle = '#f00'; enemyBullets.forEach(bullet => { ctx.fillRect(bullet.x, bullet.y, 4, 10); }); } // Draw aliens function drawAliens() { aliens.forEach(alien => { if (!alien.alive) return; ctx.fillStyle = '#f00'; if (alien.type === 's') ctx.fillStyle = '#00f'; else if (alien.type === 'm') ctx.fillStyle = '#ff0'; else if (alien.type === 'l') ctx.fillStyle = '#f00'; ctx.fillRect(alien.x, alien.y, alien.width, alien.height); // Alien eyes ctx.fillStyle = '#fff'; ctx.fillRect(alien.x + 8, alien.y + 8, 6, 6); ctx.fillRect(alien.x + alien.width - 14, alien.y + 8, 6, 6); }); } // Draw bunkers function drawBunkers() { bunkers.forEach(bunker => { for (let r = 0; r < bunker.rows; r++) { for (let c = 0; c < bunker.cols; c++) { if (bunker.material[r][c] > 0) { const x = bunker.x + c * (bunkerWidth / bunker.cols) + 2; const y = bunker.y + r * (bunkerHeight / bunkerRows) + 2; const w = bunkerWidth / bunker.cols - 4; const h = bunkerHeight / bunkerRows - 4; ctx.fillStyle = '#0f0'; ctx.fillRect(x, y, w, h); // Add highlight ctx.fillStyle = '#0c0'; ctx.fillRect(x + 1, y + 1, w - 2, h - 2); } } } }); } // Handle player movement function handlePlayerMovement() { player.x += player.dx; // Keep player within bounds if (player.x < 0) player.x = 0; if (player.x + player.width > canvas.width) player.x = canvas.width - player.width; // Reset invulnerability timer if (player.isInvulnerable) { player.invulnerabilityTimer--; if (player.invulnerabilityTimer <= 0) { player.isInvulnerable = false; } } } // Fire bullets function fireBullet() { const now = Date.now(); if (now - lastShotTime > bulletCooldown) { bullets.push({ x: player.x + player.width / 2 - 2, y: player.y - 10, width: 4, height: 10 }); lastShotTime = now; } } // Enemy AI function enemyAI() { const now = Date.now(); // Decide if enemy should fire if (now - lastEnemyShotTime > enemyShotCooldown) { const aliveAliens = aliens.filter(a => a.alive); if (aliveAliens.length > 0) { const randomAlien = aliveAliens[Math.floor(Math.random() * aliveAliens.length)]; enemyBullets.push({ x: randomAlien.x + randomAlien.width / 2 - 2, y: randomAlien.y + randomAlien.height, width: 4, height: 10 }); lastEnemyShotTime = now; // Randomize next shot time enemyShotCooldown = 150 + Math.random() * 150; } } } // Move aliens function moveAliens() { let moveDown = false; // Check if aliens hit the wall for (let alien of aliens) { if (!alien.alive) continue; if (alien.x <= 0 && alienDirection < 0) { moveDown = true; alienDirection = 1; } if (alien.x + alien.width >= canvas.width && alienDirection > 0) { moveDown = true; alienDirection = -1; } } // Move aliens for (let alien of aliens) { if (!alien.alive) continue; alien.x += alienSpeed * alienDirection; // Move down if needed if (moveDown) { alien.y += alienDropDistance; // Game over if aliens reach player zone if (alien.y + alien.height >= player.y) { gameOver = true; showGameOver(); return; } } } } // Check collisions function checkCollisions() { // Player bullets vs aliens for (let i = bullets.length - 1; i >= 0; i--) { const bullet = bullets[i]; let hit = false; for (let j = 0; j < aliens.length; j++) { const alien = aliens[j]; if (!alien.alive) continue; if (bullet.x < alien.x + alien.width && bullet.x + bullet.width > alien.x && bullet.y < alien.y + alien.height && bullet.y + bullet.height > alien.y) { // Hit alien alien.alive = false; bullets.splice(i, 1); score += alien.type === 's' ? 10 : alien.type === 'm' ? 20 : 30; updateUI(); hit = true; break; } } // Check if bullet escaped if (!hit) { if (bullet.y < 0) { bullets.splice(i, 1); } } } // Enemy bullets vs player for (let i = enemyBullets.length - 1; i >= 0; i--) { const bullet = enemyBullets[i]; if (bullet.x < player.x + player.width && bullet.x + bullet.width > player.x && bullet.y < player.y + player.height && bullet.y + bullet.height > player.y) { // Hit player if (!player.isInvulnerable) { lives--; player.isInvulnerable = true; player.invulnerabilityTimer = 120; // 2 seconds at 60fps updateUI(); if (lives <= 0) { gameOver = true; showGameOver(); return; } } enemyBullets.splice(i, 1); } else if (bullet.y > canvas.height) { enemyBullets.splice(i, 1); } } // Bullets vs bunkers for (let i = bullets.length - 1; i >= 0; i--) { const bullet = bullets[i]; for (let bunker of bunkers) { const bunkerX = bunker.x; const bunkerY = bunker.y; const bunkerWidth = bunker.width; const bunkerHeight = bunker.height; const cols = bunker.cols; const rows = bunker.rows; const cellWidth = bunkerWidth / cols; const cellHeight = bunkerHeight / rows; const col = Math.floor((bullet.x - bunkerX) / cellWidth); const row = Math.floor((bullet.y - bunkerY) / cellHeight); if (col >= 0 && col < cols && row >= 0 && row < rows && bunker.material[row][col] > 0) { bunker.material[row][col]--; // Remove bullet bullets.splice(i, 1); break; } } } // Enemy bullets vs bunkers for (let i = enemyBullets.length - 1; i >= 0; i--) { const bullet = enemyBullets[i]; for (let bunker of bunkers) { const bunkerX = bunker.x; const bunkerY = bunker.y; const bunkerWidth = bunker.width; const bunkerHeight = bunker.height; const cols = bunker.cols; const rows = bunker.rows; const cellWidth = bunkerWidth / cols; const cellHeight = bunkerHeight / rows; const col = Math.floor((bullet.x - bunkerX) / cellWidth); const row = Math.floor((bullet.y - bunkerY) / cellHeight); if (col >= 0 && col < cols && row >= 0 && row < rows && bunker.material[row][col] > 0) { bunker.material[row][col]--; // Remove bullet enemyBullets.splice(i, 1); break; } } } // Check win condition const aliveAliens = aliens.filter(a => a.alive); if (aliveAliens.length === 0) { gameWon = true; showWin(); } } // Show Game Over function showGameOver() { document.getElementById('game-over').style.display = 'block'; document.getElementById('final-score').textContent = score; } // Show Win function showWin() { document.getElementById('win').style.display = 'block'; document.getElementById('win-score').textContent = score; } // Game loop function gameLoop() { if (gameOver) return; if (gameWon) return; // Clear canvas ctx.clearRect(0, 0, canvas.width, canvas.height); // Update game state handlePlayerMovement(); enemyAI(); moveAliens(); checkCollisions(); // Draw everything drawBunkers(); drawAliens(); drawPlayer(); drawBullets(); // Continue loop requestAnimationFrame(gameLoop); } // Handle keyboard input document.addEventListener('keydown', (e) => { if (gameOver || gameWon) return; if (e.key === 'ArrowLeft' || e.key === 'a' || e.key === 'A') { player.dx = -player.speed; } if (e.key === 'ArrowRight' || e.key === 'd' || e.key === 'D') { player.dx = player.speed; } if (e.key === ' ' && !gameOver && !gameWon) { fireBullet(); } }); document.addEventListener('keyup', (e) => { if (e.key === 'ArrowLeft' || e.key === 'a' || e.key === 'A') { if (player.dx < 0) player.dx = 0; } if (e.key === 'ArrowRight' || e.key === 'd' || e.key === 'D') { if (player.dx > 0) player.dx = 0; } }); // Restart button document.getElementById('restart-game-over').addEventListener('click', resetGame); document.getElementById('restart-win').addEventListener('click', resetGame); // Start game resetGame(); </script> </body> </html>
{"path":"index.html","edits":[{"oldText":" // Game state\n let score = 0;\n let lives = 3;\n let gameOver = false;\n let gameNo changes made to index.html. The replacement produced identical content. This might indicate an issue with special characters or the text not existing as expected.
{"path":"index.html","edits":[{"oldText":" // Game state\n let score = 0;\n let lives = 3;\n let gameOver = false;\n let gameNo changes made to index.html. The replacement produced identical content. This might indicate an issue with special characters or the text not existing as expected.
{"path":"index.html"}<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Space Invaders</title> <style> body { margin: 0; display: flex; justify-content: center; align-items: center; height: 100vh; background-color: #000; color: white; font-family: 'Courier New', monospace; overflow: hidden; } #game-container { position: relative; width: 600px; height: 700px; border: 2px solid #333; overflow: hidden; } canvas { display: block; background-color: #000; } #ui { position: absolute; top: 10px; left: 10px; font-size: 16px; color: #0f0; text-shadow: 0 0 5px #0f0; } #controls { position: absolute; bottom: 20px; left: 10px; font-size: 12px; color: #aaa; text-shadow: 0 0 3px #aaa; } #game-over, #win { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); background-color: rgba(0, 0, 0, 0.8); padding: 20px 40px; border: 2px solid #f00; border-radius: 8px; text-align: center; display: none; } button { margin-top: 15px; padding: 8px 16px; background-color: #0f0; color: #000; border: none; border-radius: 4px; cursor: pointer; font-weight: bold; } button:hover { background-color: #0c0; } </style> </head> <body> <div id="game-container"> <canvas id="game-canvas" width="600" height="700"></canvas> <div id="ui"> Score: <span id="score">0</span><br> Lives: <span id="lives">3</span> </div> <div id="controls"> Use ← → or A/D to move<br> Press SPACE to fire </div> <div id="game-over"> <h2>Game Over</h2> <p>Your score: <span id="final-score">0</span></p> <button id="restart-game-over">Restart</button> </div> <div id="win"> <h2>You Win!</h2> <p>Score: <span id="win-score">0</span></p> <button id="restart-win">Restart</button> </div> </div> <script> // Game canvas and context const canvas = document.getElementById('game-canvas'); const ctx = canvas.getContext('2d'); // Game state let score = 0; let lives = 3; let gameOver = false; let gameWon = false; let gameStarted = false; let lastShotTime = 0; let lastEnemyShotTime = 0; let enemyShotCooldown = 150 + Math.random() * 150; // Player let player = { x: canvas.width / 2 - 25, y: canvas.height - 60, width: 50, height: 20, speed: 6, dx: 0, isInvulnerable: false, invulnerabilityTimer: 0 }; // Bullets const bullets = []; const enemyBullets = []; const bulletSpeed = 8; const enemyBulletSpeed = 5; const bulletCooldown = 30; // frames between shots let lastShotTime = 0; let lastEnemyShotTime = 0; const enemyShotCooldown = 150 + Math.random() * 150; // Randomized // Aliens let alienRows = 5; let alienCols = 10; let alienWidth = 40; let alienHeight = 30; let alienPadding = 10; let alienSpeed = 1.5; let aliens = []; let alienDirection = 1; // 1 for right, -1 for left let alienDropDistance = 20; // Bunkers let bunkerRows = 3; let bunkerCols = 5; let bunkerWidth = 60; let bunkerHeight = 20; let bunkerPadding = 10; let bunkerCount = 4; let bunkerX = [50, 170, 310, 430]; let bunkerY = canvas.height - 140; let bunkerMaterial = 3; // Number of hits to destroy let bunkers = []; // Initialize aliens function initAliens() { aliens = []; for (let row = 0; row < alienRows; row++) { for (let col = 0; col < alienCols; col++) { aliens.push({ x: col * (alienWidth + alienPadding) + 50, y: row * (alienHeight + alienPadding) + 50, width: alienWidth, height: alienHeight, alive: true, type: row === 0 ? 's' : row < 3 ? 'm' : 'l' }); } } } // Initialize bunkers function initBunkers() { bunkers = []; for (let i = 0; i < bunkerCount; i++) { const bunker = { x: bunkerX[i], y: bunkerY, width: bunkerWidth, height: bunkerHeight, material: [], rows: bunkerRows, cols: bunkerCols }; // Initialize material array for (let r = 0; r < bunker.rows; r++) { bunker.material[r] = []; for (let c = 0; c < bunker.cols; c++) { bunker.material[r][c] = bunkerMaterial; } } bunkers.push(bunker); } } // Reset game function resetGame() { score = 0; lives = 3; gameOver = false; gameWon = false; player.x = canvas.width / 2 - 25; player.dx = 0; player.isInvulnerable = false; bullets.length = 0; enemyBullets.length = 0; alienDirection = 1; lastShotTime = 0; lastEnemyShotTime = 0; initAliens(); initBunkers(); updateUI(); gameStarted = true; requestAnimationFrame(gameLoop); } // Update UI function updateUI() { document.getElementById('score').textContent = score; document.getElementById('lives').textContent = lives; } // Draw player cannon function drawPlayer() { // Cannon base ctx.fillStyle = '#0f0'; ctx.fillRect(player.x, player.y, player.width, player.height); // Cannon barrel ctx.fillStyle = '#0c0'; ctx.fillRect(player.x + player.width / 2 - 5, player.y - 10, 10, 10); // Player glow effect when invulnerable if (player.isInvulnerable) { ctx.strokeStyle = '#0ff'; ctx.lineWidth = 3; ctx.strokeRect(player.x - 5, player.y - 5, player.width + 10, player.height + 10); } } // Draw bullets function drawBullets() { ctx.fillStyle = '#fff'; bullets.forEach(bullet => { ctx.fillRect(bullet.x, bullet.y, 4, 10); }); ctx.fillStyle = '#f00'; enemyBullets.forEach(bullet => { ctx.fillRect(bullet.x, bullet.y, 4, 10); }); } // Draw aliens function drawAliens() { aliens.forEach(alien => { if (!alien.alive) return; ctx.fillStyle = '#f00'; if (alien.type === 's') ctx.fillStyle = '#00f'; else if (alien.type === 'm') ctx.fillStyle = '#ff0'; else if (alien.type === 'l') ctx.fillStyle = '#f00'; ctx.fillRect(alien.x, alien.y, alien.width, alien.height); // Alien eyes ctx.fillStyle = '#fff'; ctx.fillRect(alien.x + 8, alien.y + 8, 6, 6); ctx.fillRect(alien.x + alien.width - 14, alien.y + 8, 6, 6); }); } // Draw bunkers function drawBunkers() { bunkers.forEach(bunker => { for (let r = 0; r < bunker.rows; r++) { for (let c = 0; c < bunker.cols; c++) { if (bunker.material[r][c] > 0) { const x = bunker.x + c * (bunkerWidth / bunker.cols) + 2; const y = bunker.y + r * (bunkerHeight / bunkerRows) + 2; const w = bunkerWidth / bunker.cols - 4; const h = bunkerHeight / bunkerRows - 4; ctx.fillStyle = '#0f0'; ctx.fillRect(x, y, w, h); // Add highlight ctx.fillStyle = '#0c0'; ctx.fillRect(x + 1, y + 1, w - 2, h - 2); } } } }); } // Handle player movement function handlePlayerMovement() { player.x += player.dx; // Keep player within bounds if (player.x < 0) player.x = 0; if (player.x + player.width > canvas.width) player.x = canvas.width - player.width; // Reset invulnerability timer if (player.isInvulnerable) { player.invulnerabilityTimer--; if (player.invulnerabilityTimer <= 0) { player.isInvulnerable = false; } } } // Fire bullets function fireBullet() { const now = Date.now(); if (now - lastShotTime > bulletCooldown) { bullets.push({ x: player.x + player.width / 2 - 2, y: player.y - 10, width: 4, height: 10 }); lastShotTime = now; } } // Enemy AI function enemyAI() { const now = Date.now(); // Decide if enemy should fire if (now - lastEnemyShotTime > enemyShotCooldown) { const aliveAliens = aliens.filter(a => a.alive); if (aliveAliens.length > 0) { const randomAlien = aliveAliens[Math.floor(Math.random() * aliveAliens.length)]; enemyBullets.push({ x: randomAlien.x + randomAlien.width / 2 - 2, y: randomAlien.y + randomAlien.height, width: 4, height: 10 }); lastEnemyShotTime = now; // Randomize next shot time enemyShotCooldown = 150 + Math.random() * 150; } } } // Move aliens function moveAliens() { let moveDown = false; // Check if aliens hit the wall for (let alien of aliens) { if (!alien.alive) continue; if (alien.x <= 0 && alienDirection < 0) { moveDown = true; alienDirection = 1; } if (alien.x + alien.width >= canvas.width && alienDirection > 0) { moveDown = true; alienDirection = -1; } } // Move aliens for (let alien of aliens) { if (!alien.alive) continue; alien.x += alienSpeed * alienDirection; // Move down if needed if (moveDown) { alien.y += alienDropDistance; // Game over if aliens reach player zone if (alien.y + alien.height >= player.y) { gameOver = true; showGameOver(); return; } } } } // Check collisions function checkCollisions() { // Player bullets vs aliens for (let i = bullets.length - 1; i >= 0; i--) { const bullet = bullets[i]; let hit = false; for (let j = 0; j < aliens.length; j++) { const alien = aliens[j]; if (!alien.alive) continue; if (bullet.x < alien.x + alien.width && bullet.x + bullet.width > alien.x && bullet.y < alien.y + alien.height && bullet.y + bullet.height > alien.y) { // Hit alien alien.alive = false; bullets.splice(i, 1); score += alien.type === 's' ? 10 : alien.type === 'm' ? 20 : 30; updateUI(); hit = true; break; } } // Check if bullet escaped if (!hit) { if (bullet.y < 0) { bullets.splice(i, 1); } } } // Enemy bullets vs player for (let i = enemyBullets.length - 1; i >= 0; i--) { const bullet = enemyBullets[i]; if (bullet.x < player.x + player.width && bullet.x + bullet.width > player.x && bullet.y < player.y + player.height && bullet.y + bullet.height > player.y) { // Hit player if (!player.isInvulnerable) { lives--; player.isInvulnerable = true; player.invulnerabilityTimer = 120; // 2 seconds at 60fps updateUI(); if (lives <= 0) { gameOver = true; showGameOver(); return; } } enemyBullets.splice(i, 1); } else if (bullet.y > canvas.height) { enemyBullets.splice(i, 1); } } // Bullets vs bunkers for (let i = bullets.length - 1; i >= 0; i--) { const bullet = bullets[i]; for (let bunker of bunkers) { const bunkerX = bunker.x; const bunkerY = bunker.y; const bunkerWidth = bunker.width; const bunkerHeight = bunker.height; const cols = bunker.cols; const rows = bunker.rows; const cellWidth = bunkerWidth / cols; const cellHeight = bunkerHeight / rows; const col = Math.floor((bullet.x - bunkerX) / cellWidth); const row = Math.floor((bullet.y - bunkerY) / cellHeight); if (col >= 0 && col < cols && row >= 0 && row < rows && bunker.material[row][col] > 0) { bunker.material[row][col]--; // Remove bullet bullets.splice(i, 1); break; } } } // Enemy bullets vs bunkers for (let i = enemyBullets.length - 1; i >= 0; i--) { const bullet = enemyBullets[i]; for (let bunker of bunkers) { const bunkerX = bunker.x; const bunkerY = bunker.y; const bunkerWidth = bunker.width; const bunkerHeight = bunker.height; const cols = bunker.cols; const rows = bunker.rows; const cellWidth = bunkerWidth / cols; const cellHeight = bunkerHeight / rows; const col = Math.floor((bullet.x - bunkerX) / cellWidth); const row = Math.floor((bullet.y - bunkerY) / cellHeight); if (col >= 0 && col < cols && row >= 0 && row < rows && bunker.material[row][col] > 0) { bunker.material[row][col]--; // Remove bullet enemyBullets.splice(i, 1); break; } } } // Check win condition const aliveAliens = aliens.filter(a => a.alive); if (aliveAliens.length === 0) { gameWon = true; showWin(); } } // Show Game Over function showGameOver() { document.getElementById('game-over').style.display = 'block'; document.getElementById('final-score').textContent = score; } // Show Win function showWin() { document.getElementById('win').style.display = 'block'; document.getElementById('win-score').textContent = score; } // Game loop function gameLoop() { if (gameOver) return; if (gameWon) return; // Clear canvas ctx.clearRect(0, 0, canvas.width, canvas.height); // Update game state handlePlayerMovement(); enemyAI(); moveAliens(); checkCollisions(); // Draw everything drawBunkers(); drawAliens(); drawPlayer(); drawBullets(); // Continue loop requestAnimationFrame(gameLoop); } // Handle keyboard input document.addEventListener('keydown', (e) => { if (gameOver || gameWon) return; if (e.key === 'ArrowLeft' || e.key === 'a' || e.key === 'A') { player.dx = -player.speed; } if (e.key === 'ArrowRight' || e.key === 'd' || e.key === 'D') { player.dx = player.speed; } if (e.key === ' ' && !gameOver && !gameWon) { fireBullet(); } }); document.addEventListener('keyup', (e) => { if (e.key === 'ArrowLeft' || e.key === 'a' || e.key === 'A') { if (player.dx < 0) player.dx = 0; } if (e.key === 'ArrowRight' || e.key === 'd' || e.key === 'D') { if (player.dx > 0) player.dx = 0; } }); // Restart button document.getElementById('restart-game-over').addEventListener('click', resetGame); document.getElementById('restart-win').addEventListener('click', resetGame); // Start game resetGame(); </script> </body> </html>
{"path":"index.html","edits":[{"oldText":" // Game state\n let score = 0;\n let lives = 3;\n let gameOver = false;\n let gameSuccessfully replaced 1 block(s) in index.html.
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