Webleb - Extraits de Code - City Smash NOUVEAU !!!

HTML CSS JS

const canvas = document.getElementById('gameCanvas');
const ctx = canvas.getContext('2d');
const resetBtn = document.getElementById('resetBtn');

// Setup Canvas Size
function resize() {
    canvas.width = window.innerWidth;
    canvas.height = window.innerHeight;
}
window.addEventListener('resize', resize);
resize();

// Game objects
let blocks = [];
let particles = [];
let isSmashing = false;

// Block Class representing building structural segments
class Block {
    constructor(x, y, width, height, color) {
        this.x = x;
        this.y = y;
        this.width = width;
        this.height = height;
        this.color = color;
        this.alive = true;
    }

draw() {
        if (!this.alive) return;
        ctx.fillStyle = this.color;
        ctx.fillRect(this.x, this.y, this.width, this.height);
        
        // Add tiny windows layout inside the buildings
        ctx.fillStyle = 'rgba(255, 255, 150, 0.4)';
        for (let wx = 5; wx < this.width - 5; wx += 12) {
            for (let wy = 5; wy < this.height - 5; wy += 15) {
                ctx.fillRect(this.x + wx, this.y + wy, 5, 8);
            }
        }
    }
}

// Particle Class for demolition explosion effects
class Particle {
    constructor(x, y, color) {
        this.x = x;
        this.y = y;
        this.vx = (Math.random() - 0.5) * 8;
        this.vy = (Math.random() - 0.5) * 8 - 3; // slight upward drift
        this.color = color;
        this.alpha = 1;
        this.gravity = 0.2;
    }

update() {
        this.x += this.vx;
        this.y += this.vy;
        this.vy += this.gravity;
        this.alpha -= 0.02;
    }

draw() {
        ctx.save();
        ctx.globalAlpha = this.alpha;
        ctx.fillStyle = this.color;
        ctx.fillRect(this.x, this.y, 4, 4);
        ctx.restore();
    }
}

// Generate Skyline
function initCity() {
    blocks = [];
    particles = [];
    const blockWidth = 40;
    const blockHeight = 30;
    const totalWidth = canvas.width;
    
    // Spawn multiple adjacent buildings
    for (let x = 50; x < totalWidth - 80; x += 70) {
        const buildingWidth = 60;
        const buildingHeight = Math.floor(Math.random() * 10) + 5; // Rows high
        const hue = Math.floor(Math.random() * 40) + 200; // City blues/purples
        const color = `hsl(${hue}, 40%, 30%)`;

for (let row = 0; row < buildingHeight; row++) {
            const bx = x;
            const by = canvas.height - (row * blockHeight) - blockHeight;
            blocks.push(new Block(bx, buildingWidth, blockWidth, blockHeight, color));
        }
    }
}

// Smash Function
function checkSmash(mx, my) {
    blocks.forEach(block => {
        if (block.alive && mx > block.x && mx < block.x + block.width && my > block.y && my < block.y + block.height) {
            block.alive = false;
            // Spawn fire and debris particles
            for (let i = 0; i < 15; i++) {
                particles.push(new Particle(block.x + block.width/2, block.y + block.height/2, block.color));
                particles.push(new Particle(block.x + block.width/2, block.y + block.height/2, '#ff5500')); // fire debris
            }
        }
    });
}

// Mouse and Touch Interaction Handlers
window.addEventListener('mousedown', (e) => { isSmashing = true; checkSmash(e.clientX, e.clientY); });
window.addEventListener('mousemove', (e) => { if (isSmashing) checkSmash(e.clientX, e.clientY); });
window.addEventListener('mouseup', () => isSmashing = false);

window.addEventListener('touchstart', (e) => { isSmashing = true; checkSmash(e.touches[0].clientX, e.touches[0].clientY); });
window.addEventListener('touchmove', (e) => { if (isSmashing) checkSmash(e.touches[0].clientX, e.touches[0].clientY); });
window.addEventListener('touchend', () => isSmashing = false);

resetBtn.addEventListener('click', initCity);

// Simulation Loop
function animate() {
    ctx.fillStyle = 'rgba(10, 10, 22, 0.3)'; // creates motion blur trail effect
    ctx.fillRect(0, 0, canvas.width, canvas.height);

// Draw Ground
    ctx.fillStyle = '#111125';
    ctx.fillRect(0, canvas.height - 10, canvas.width, 10);

// Render Assets
    blocks.forEach(block => block.draw());
    
    particles.forEach((particle, index) => {
        particle.update();
        particle.draw();
        if (particle.alpha <= 0) particles.splice(index, 1);
    });

requestAnimationFrame(animate);
}

// Start Game
initCity();
animate();

Preview

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