Snake and Ladders - Classic Board Game
A fully-featured HTML5 Canvas arcade game recreating the classic Snakes & Ladders / Chutes & Ladders board game. Supports 2–6 player hot-seat multiplayer and VS CPU mode, with two themed board modes (Snakes and Chutes), animated characters, physics-style Bezier chute slides, persistent stats, full sound design, and responsive mobile-first scaling.
Problem
Build a polished, browser-based multiplayer board game that runs without any server-side code or build tools, supports 2–6 players with both local and AI opponents, works seamlessly across desktop and mobile devices, and delivers an engaging arcade-like experience with animations, sound, and responsive scaling.
Approach
Designed a self-contained static HTML5 game using a Canvas-based scene graph powered by CreateJS for rendering and animations. Implemented all game logic (board layout, dice mechanics, player movement, snake/ladder collision) in a single modular JavaScript file. Used Howler.js for cross-browser audio, TweenJS for all motion (Bezier paths for chute slides, elastic bounces, sprite animations), and a custom responsive scaler to fit any viewport. Built two fully themed board variants (Snakes and Chutes) with distinct art assets, character sprites, and animation styles.
Key Engineering Decisions
Single-file game engine architecture
All ~6,600 lines of game logic live in one main.js file with ~25 classes, avoiding any bundler or build step. This keeps deployment trivial (static files only) and makes the game instantly portable to any hosting platform.
Dual board themes (Snakes vs Chutes)
Implemented two complete visual modes with different assets, color palettes, and animation styles — animated snake spritesheets with 'eating' animations for Snakes mode, and static chutes with Bezier-path sliding characters for Chutes mode. This adds replay value and visual variety without duplicating core logic.
Boustrophedon board movement
Players move in a snake-like path across rows (alternating left-to-right and right-to-left), matching the classic physical board layout. Characters flip horizontally each row to face the correct direction, preserving spatial intuition.
Arc-length parameterized Bezier paths for chute slides
Rather than simple teleportation, chute slides follow authored quadratic Bezier curves with arc-length parameterization for uniform speed. This creates a smooth, physically satisfying sliding animation that feels like riding an actual slide.
Exact-landing win condition with bounce-back
When perfect_score is enabled, players must land exactly on square 100 — overshooting causes the pawn to bounce backward for the remaining steps. This adds strategic tension to late-game rolls and prevents anticlimactic wins.
Mobile-first responsive scaling
The canvas dynamically scales to fit any viewport using min(height/640, width/1360) with separate CSS and bitmap scaling strategies for mobile vs desktop browsers. Includes orientation-lock overlays, iOS fullscreen prompts, and touch-delay removal for a native-app feel.
Hot-seat multiplayer with random-roll CPU
Supports up to 6 local players in hot-seat mode with turn indicators, and a VS CPU mode where AI opponents use random dice rolls. This keeps the game accessible and social without requiring networking infrastructure.
Results
6
Max supported players
2
Themed board modes (Snakes & Chutes)
6,600+
Lines of handcrafted game logic
13
Sound effects and music tracks
Zero
Build dependencies or server requirements
100%
Mobile-responsive with iOS handling
Technologies