Dangerous Dave platformer · qwen-2.5-7b-instruct
Build a playable tile-based platformer on a canvas in the Dangerous Dave style: navigate a level to grab a trophy and then reach the exit, avoiding hazards like fire and water, with jumping and simple enemies. Procedural graphics only, no external assets.
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Build a playable tile-based platformer on a canvas in the Dangerous Dave style: navigate a level to grab a trophy and then reach the exit, avoiding hazards like fire and water, with jumping and simple enemies. Procedural graphics only, no external assets.
To build a Dangerous Dave-style tile-based platformer in a single HTML file with inline CSS and JavaScript, we'll need to create a simple game engine in JavaScript. Since we're creating a self-contained file with no external resources, we'll have to create our game logic and graphics from scratch. However, to keep the file manageable, we will focus on the main game loop, level structure, player movement, and basic enemies and hazards. Below is the complete content for the game: ```html <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Dangerous Dave</title> <style> canvas { display: block; } </style> </head> <body> <canvas id="gameCanvas" width="800" height="600"></canvas> <script> const canvas = document.getElementById('gameCanvas'); const ctx = canvas.getContext('2d'); // Game constants const GRAVITY = 0.5; const JUMP_STRENGTH = -20; const ENEMY_SPEED = 5; // Global game state let player = { x: 50, y: 500, width: 20, height: 30, velocityY: 0, isJumping: false }; let enemies = [ { x: 800, y: 500, width: 20, height: 20, dx: -ENEMY_SPEED } ]; const level = [ // Level structure in tiles (1: player, 2: ground, 3: hazard, 4: exit, 5: enemy) [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3], [3, 3, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 3, 3], [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2], [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2], [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2], [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 4], [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 0, 0, 0, 3, 3] ]; const hazards = [ { x: 780, y: 550 } ]; const trophies = [ { x: 740, y: 480 } ]; function drawBackground() { ctx.fillStyle = '#2b2b2b'; ctx.fillRect(0, 0, canvas.width, canvas.height); } function drawTile(tileType) { switch (tileType) { case 2: ctx.fillStyle = '#623932'; break; // Ground case 3: ctx.fillStyle = '#ff2d0f'; break; // Hazard case 4: ctx.fillStyle = '#47a410'; break; // Exit case 5: ctx.fillStyle = '#0000ff'; break; // Enemy default: ctx.fillStyle = '#000000'; // Placeholder } ctx.fillRect(tile.x, tile.y, tile.width, tile.height); } function drawPlayer() { ctx.fillStyle = '#ff0000'; ctx.fillRect(player.x, player.y, player.width, player.height); } function drawEnemies() { enemies.forEach(enemy => { ctx.fillStyle = '#00ff00'; ctx.fillRect(enemy.x, enemy.y, enemy.width, enemy.height); }); } function drawTrophies() { trophies.forEach(trophy => { ctx.fillStyle = '#ffff00'; ctx.fillRect(trophy.x, trophy.y, 10, 10); }); } function drawHazards() { hazards.forEach(hazard => { ctx.fillStyle = '#ff2d0f'; ctx.fillRect(hazard.x, hazard.y, 20, 20); }); } function handleEnemies() { enemies.forEach((enemy, index) => { enemy.x += enemy.dx; if (enemy.x < 0 || enemy.x > canvas.width) { enemy.dx *= -1; } // Collision with player if (player.y < enemy.y + enemy.height && player.y + player.height > enemy.y && player.x + player.width > enemy.x && player.x < enemy.x + enemy.width) { alert('Game Over!'); location.reload(); } }); } function handleMovement() { if (player.isJumping) { player.velocityY += GRAVITY; player.y += player.velocityY; let tilesBelow = false; for (let i = player.y; i < player.y + player.height; i++) { if (level[Math.floor(i / 32)][Math.floor(player.x / 32)] === 2) { tilesBelow = true; player.velocityY = 0; player.y = i - player.height; break; } } if (!tilesBelow) { player.y += 2; // Settle to bottom of ground tile } } else { player.velocityY += GRAVITY; player.y += player.velocityY; let tilesBelow = false; for (let i = player.y; i < player.y + player.height; i++) { if (level[Math.floor(i / 32)][Math.floor(player.x / 32)] === 2) { tilesBelow = true; player.velocityY = 0; player.y = i - player.height; break; } } if (!tilesBelow) { player.y += 2; // Settle to bottom of ground tile } // Check for collision and win condition for (let i = player.y; i < player.y + player.height; i++) { if (level[Math.floor(i / 32)][Math.floor(player.x / 32)] === 4) { alert('You Win!'); location.reload(); } } } // Collision with hazards if (player.y < hazards[0].y + hazards[0].height && player.y + player.height > hazards[0].y && player.x + player.width > hazards[0].x && player.x < hazards[0].x + hazards[0].width) { alert('Game Over!'); location.reload(); } if (player.y < trophies[0].y + trophies[0].height && player.y + player.height > trophies[0].y && player.x + player.width > trophies[0].x && player.x < trophies[0].x + trophies[0].width) { player.isJumping = true; } } function gameLoop() { ctx.clearRect(0, 0, canvas.width, canvas.height); drawBackground(); drawTile({ x: 0, y: 0, width: 32, height: 32 }); drawTile({ x: 32, y: 320, width: 32, height: 32 }); drawPlayer(); drawEnemies(); drawTrophies(); drawHazards(); handleMovement(); handleEnemies(); requestAnimationFrame(gameLoop); } // Start the game gameLoop(); </script> </body> </html> ``` The above code creates a basic game loop that handles movement, collisions, and simple enemy behavior. You can copy and paste this into a file named `index.html` in the current directory to see the game in action. This is a simplified version and lacks many features, but it serves as a starting point for a tile-based game in a self-contained HTML file.
TAKE IT TO CODE
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