zen-cricket System Requirements Document

1. Introduction

Welcome to the System Requirements Document for zen-cricket, a Test cricket match simulator inspired by Syedur Rahman's classic cricket simulator from the early 2000s. This document outlines the requirements and design elements necessary to create an immersive and realistic cricket simulation experience for cricket enthusiasts like John Pennington.

2. System Overview

zen-cricket aims to provide a comprehensive and realistic Test cricket simulation experience. The simulator will capture the nostalgic feel of classic cricket simulators while incorporating modern Test cricket dynamics. It will feature a text-based interface with ASCII art elements, allowing users to simulate full 5-day Test matches with realistic match conditions, player attributes, and AI behavior.

3. Functional Requirements

• As a User, I should be able to simulate a full 5-day Test match with two innings per team.
• As a User, I should be able to see overs bowled in groups of 6 balls with a realistic session structure (90 overs per day: 30-30-30 split across three sessions).
• As a User, I should be able to enforce follow-on rules when the lead is 200+ runs.
• As a User, I should be able to declare innings as the batting team.
• As a User, I should experience realistic match outcomes such as draw, win by innings, or win by runs/wickets.
• As a User, I should see a text-based interface with ASCII art elements for scoreboards and commentary.
• As a User, I should be able to view a clean and sensible scorecard with detailed statistics.
• As a User, I should experience modern Test match run rates and realistic batting mechanics.
• As a User, I should see realistic bowling mechanics with a fatigue system affecting performance.
• As a User, I should be able to manage teams, select players, and control bowling changes.
• As a User, I should experience AI behavior that makes realistic decisions and adapts to match situations.
• As a User, I should be able to track individual and team statistics throughout the match.

4. User Personas

• Cricket Enthusiast: A user who is passionate about cricket and enjoys simulating matches with realistic outcomes and strategies.
• Team Manager: A user who enjoys managing teams, selecting players, and making strategic decisions during matches.
• Statistician: A user who is interested in tracking detailed match statistics and analyzing player performances.

5. Visuals Colors and Theme

• primary: #004d40 (deep teal)
• primary_light: #39796b (lighter teal)
• secondary: #ffab00 (amber)
• accent: #d50000 (red)
• highlight: #ff6f00 (orange)
• bg: #f5f5f5 (light grey)
• surface: rgba(255, 255, 255, 0.9) (white)
• text: #212121 (dark grey)
• text_muted: #757575 (medium grey)
• border: rgba(0, 0, 0, 0.1) (light black)

6. Signature Design Concept

The zen-cricket simulator will feature an interactive "Cricket Field" homepage. Users will navigate a stylized cricket field where each section of the field represents different aspects of the game (e.g., batting, bowling, scorecard). As users hover over different areas, animations will reveal detailed information and options for interaction. The field will be designed using @react-three/fiber for a 3D effect, allowing users to click and drag to explore different sections. The interface will include subtle animations using framer-motion to enhance the interactive experience, such as spring physics when selecting players or making strategic decisions.

7. Interaction Model & Motion Direction

• Interaction Model: Parallax
  • The landing page will feature layered depth via scroll, with decorative elements like cricket bats moving at different speeds.
  • Real content, such as match details and player statistics, will scroll naturally.
  • Each section on the landing page will have a distinctive core mechanic, such as a 3D scene for team management or a kinetic typography display for match commentary.

8. Non-Functional Requirements

• The simulator should produce realistic match outcomes with logical rule implementation.
• The interface should be clean, information-dense, and allow users to progress ball-by-ball with ease.
• The system should handle multiple users simultaneously without performance degradation.

9. Tech Stack

• Frontend: Vanilla HTML/CSS/JavaScript
• Backend: Python, FastAPI
• Database: MySQL or MariaDB
• AI Models: Not applicable
• Local Orchestration: Docker, docker-compose

10. Assumptions and Constraints

• The simulator will be web-based and accessible via modern web browsers.
• Users will have a basic understanding of cricket rules and terminology.
• The system will not include real-time multiplayer functionality.

11. Glossary

• Follow-on: A rule in cricket where the team batting first can make the opponents bat again if they don't get within 200 runs of their first innings total.
• Declaration: The act of a batting team ending their innings voluntarily.
• Parallax: A design technique where background images move slower than foreground images, creating an illusion of depth.