Tetris

Objective

A Tetris implementation following the genre's modern guideline, part of the Arcade monorepo. The game engine is DOM-free and runs on a single controller hook that manages the render loop, input, audio, and local persistence, with support for both keyboard and touch controls.

Mechanics

• Super Rotation System Rotation with wall kicks: pieces can shift slightly to fit near walls and other pieces.
• Next queue Preview of the next 5 pieces plus a 7-bag randomizer for fair piece distribution.
• Ghost piece Outline showing where the current piece will land before it drops.
• Tactical hold Stash a piece for later use, capped at 10 uses per game.
• Match history Stores the last 50 games locally along with the best score.

Scoring

• Lines per level Line-clear points are multiplied by the current level, following modern Tetris guideline rules.
• T-Spin Rotating a T-piece into a tight spot right before it locks awards bonus points.
• Back-to-Back Chaining hard clears (Tetris or T-Spin) without a simple clear in between grants a bonus.
• Combo Clearing lines on consecutive piece locks builds up a combo multiplier.
• Perfect Clear Emptying the entire board on a clear awards the maximum possible score.

Level progression

1. Line credits Every clear grants credits; harder clears are worth more — a Tetris grants 8 credits instead of 4.
2. Configurable starting level The starting level sets how many credits are needed to level up.
3. 15 levels Drop speed increases with every level up to 15, which always represents 600 accumulated credits.

Stack