Checkers 2D PRO (5 Difficulty Levels AI Customizable)

# Checkers 2D

A complete, polished 2D Checkers game for Unity featuring strong AI, local hotseat multiplayer, modern UI, sound effects, and mobile/desktop support.

DEMO LINK (PC + ANDROID) : https://codefrontgames.itch.io/checkers-2d

## Overview

**Checkers 2D** is a full-featured, ready-to-play checkers (draughts) game built from the ground up in Unity.

It includes:

- Classic checkers rules (mandatory captures, promotion to king, king flying moves)

- **Local hotseat multiplayer** (two players on the same device)

- **Single-player AI opponent** with **5 difficulty levels** (Easy → Insane)

- Beautiful golden premium UI with animated overlays

- Full sound effects (moves, captures, promotion, win/loss/draw/resign, UI feedback, AI thinking tick)

- Responsive design that scales beautifully on mobile and desktop

- Clean, well-structured, and easy-to-customize code

Perfect for mobile casual games, PC/Mac titles, learning projects, or as a base for your own board game variants.

## Features

### Gameplay

- Full official checkers rules

- Mandatory capture rule (jumps must be taken)

- Promotion to king on the last row

- King pieces can move diagonally any number of squares

- Win, loss, draw, and resign detection with beautiful overlay screens

### Modes

- **Hotseat Multiplayer** — Play vs Humans (local on same device)

- **Single-player vs AI** — 5 difficulty levels (Easy to Insane)

### AI

- Minimax with alpha-beta pruning

- Capture ordering for efficiency

- Background threaded search (no freeze during thinking)

- Thinking tick sound during AI delay

- Difficulty saved via PlayerPrefs

### UI & Polish

- Modern golden UI theme

- Smooth highlight animations for valid moves

- Win/loss/draw/resign overlays

- Resign and draw confirmation popups

- Turn indicator ("White's Turn" / "Red's Turn")

- Desktop quit button (hidden on mobile)

- Responsive layout for all screen sizes

### Audio

- Move sound

- Capture sound

- Promotion chime

- Win fanfare

- Loss/defeat sting (used for both loss and resign)

- Draw neutral chime

- Button click

- Slider tick

- Low pulsing thinking tick (looped during AI calculation)

### Technical

- Built-in Render Pipeline (no URP/HDRP required)

- Old Input Manager (mouse + touch support)

- TextMeshPro for UI text

- PlayerPrefs for persistent difficulty

- Scene reload safe (menu ↔ game)

- Clean folder structure (Scripts/Core, Scripts/UI, Scripts/AI, Prefabs/UI, etc.)

## Requirements

- Unity 2022.3 LTS or higher (tested up to 6000.3.10f1)

- Target aspect ratio: 9:16 portrait (1080×1920 recommended)

- Platforms: Android, iOS, Windows, Mac, Linux

## Installation

1. Import the .unitypackage file.

2. Add the following scenes to **Build Settings** (in this order):

- MainMenu (index 0)

- Game (index 1)

3. The AudioManager prefab is already placed in MainMenu scene.

4. All sound clips are pre-assigned in AudioManager — replace them if desired. 5. Play the MainMenu scene.

## How to Play

- **Play vs Humans** → Local hotseat (two players on same device)

- **Play vs Computer** → Opens difficulty selection (Easy to Insane) → Play

- Click/tap your piece to select → click/tap highlighted square to move

## Customization

- Change sounds → Edit AudioManager prefab

- Change board/pieces → Replace prefabs in Board Inspector

- Change difficulty levels → Modify depth mapping in AIManager.cs

- Change UI colors → Modify materials and TMP styles

NOTE: The 2D sprites for the chess pieces and UI elements in this template were generated using two AI tools (GPT and Grok).

## Support

If you have any questions, need help customizing, or run into issues, feel free to contact me at codefrontgames@gmail.com.