# moswinjeb/tic-tac-toe architecture

> Architecture diagram of the GitHub repository moswinjeb/tic-tac-toe, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-08-13). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/moswinjeb/tic-tac-toe
- Repository: https://github.com/moswinjeb/tic-tac-toe

## Overview

#### Purpose and Entry Point

This repository is a standalone browser implementation of Tic-Tac-Toe. Its sole entry point is `tictactoe.html`, which likely contains the page structure, game logic, and presentation without a separate application build or server runtime.

#### Runtime Boundary

The application runs entirely in a web browser. Opening `tictactoe.html` loads the UI and executes any embedded JavaScript and CSS. There is no evidence of backend services, APIs, package-managed dependencies, databases, or deployment infrastructure.

#### Game UI

`tictactoe.html` is the presentation boundary for the game board, player indicators, controls, and outcome messaging. User interactions originate from board-cell clicks and any reset/restart controls defined in the document.

#### Game State Management

The game state is expected to be maintained client-side within `tictactoe.html`: board occupancy, active player, move count, and game-complete status. State transitions occur after a valid player selection and must prevent moves into occupied cells or after a completed game.

#### Win and Draw Evaluation

Win detection is a local game-rule stage in `tictactoe.html`. After each move, the implementation evaluates board rows, columns, and diagonals for a matching player mark; if no winning pattern remains and the board is full, it produces a draw state.

#### Rendering and Feedback Loop

State changes feed back into the DOM in `tictactoe.html`, updating cell contents and game-status text. Terminal outcomes should lock or otherwise ignore further board input until a reset establishes a fresh state.

#### Deployment Model

The repository can be served as static content or opened directly from disk. The browser is both the execution environment and user interface host; no cross-process or network control flow is implied by the repository tree.

Main entry points: [`tictactoe.html`](https://github.com/moswinjeb/tic-tac-toe/blob/main/tictactoe.html) (Game State)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_browser["Browser Runtime"]
  node_ui["Game UI<br/>DOM presentation<br/>[tictactoe.html]"]
  node_input["Player Input<br/>DOM events<br/>[tictactoe.html]"]
  node_state["Game State<br/>client state<br/>[tictactoe.html]"]
  node_move["Move Validation<br/>game rules<br/>[tictactoe.html]"]
  node_evaluation["Outcome Evaluation<br/>game rules<br/>[tictactoe.html]"]
  node_reset["Reset Game<br/>state transition<br/>[tictactoe.html]"]
  node_feedback["Rendered Feedback<br/>DOM update<br/>[tictactoe.html]"]
end

node_entry["tictactoe.html<br/>static entry<br/>[tictactoe.html]"]

node_entry -->|"loads"| node_ui
node_ui -->|"emits interactions"| node_input
node_input -->|"cell selection"| node_move
node_move -->|"applies valid move"| node_state
node_state -->|"evaluates after move"| node_evaluation
node_evaluation -->|"sets win or draw"| node_state
node_state -->|"renders state"| node_feedback
node_feedback -->|"updates DOM"| node_ui
node_input -->|"restart action"| node_reset
node_reset -->|"clears state"| node_state

click node_entry "https://github.com/moswinjeb/tic-tac-toe/blob/main/tictactoe.html"
click node_ui "https://github.com/moswinjeb/tic-tac-toe/blob/main/tictactoe.html"
click node_input "https://github.com/moswinjeb/tic-tac-toe/blob/main/tictactoe.html"
click node_state "https://github.com/moswinjeb/tic-tac-toe/blob/main/tictactoe.html"
click node_move "https://github.com/moswinjeb/tic-tac-toe/blob/main/tictactoe.html"
click node_evaluation "https://github.com/moswinjeb/tic-tac-toe/blob/main/tictactoe.html"
click node_reset "https://github.com/moswinjeb/tic-tac-toe/blob/main/tictactoe.html"
click node_feedback "https://github.com/moswinjeb/tic-tac-toe/blob/main/tictactoe.html"

classDef toneNeutral fill:#f8fafc,stroke:#334155,stroke-width:1.5px,color:#0f172a
classDef toneBlue fill:#dbeafe,stroke:#2563eb,stroke-width:1.5px,color:#172554
classDef toneAmber fill:#fef3c7,stroke:#d97706,stroke-width:1.5px,color:#78350f
classDef toneMint fill:#dcfce7,stroke:#16a34a,stroke-width:1.5px,color:#14532d
classDef toneRose fill:#ffe4e6,stroke:#e11d48,stroke-width:1.5px,color:#881337
classDef toneIndigo fill:#e0e7ff,stroke:#4f46e5,stroke-width:1.5px,color:#312e81
classDef toneTeal fill:#ccfbf1,stroke:#0f766e,stroke-width:1.5px,color:#134e4a
class node_ui,node_input,node_state,node_move,node_evaluation,node_reset,node_feedback toneBlue
class node_entry toneNeutral
```

## Components

### Browser Runtime

All game behavior runs locally in the browser.

- [Game UI](https://github.com/moswinjeb/tic-tac-toe/blob/main/tictactoe.html): DOM presentation · Board, player indicators, controls, and outcome text. · `tictactoe.html`
- [Player Input](https://github.com/moswinjeb/tic-tac-toe/blob/main/tictactoe.html): DOM events · Cell clicks and reset actions. · `tictactoe.html`
- [Game State](https://github.com/moswinjeb/tic-tac-toe/blob/main/tictactoe.html): client state · Board marks, active player, move count, and completion status. · `tictactoe.html`
- [Move Validation](https://github.com/moswinjeb/tic-tac-toe/blob/main/tictactoe.html): game rules · Rejects occupied cells and moves after completion. · `tictactoe.html`
- [Outcome Evaluation](https://github.com/moswinjeb/tic-tac-toe/blob/main/tictactoe.html): game rules · Checks winning lines and full-board draws. · `tictactoe.html`
- [Reset Game](https://github.com/moswinjeb/tic-tac-toe/blob/main/tictactoe.html): state transition · Restores a fresh board and active game. · `tictactoe.html`
- [Rendered Feedback](https://github.com/moswinjeb/tic-tac-toe/blob/main/tictactoe.html): DOM update · Updates cell marks, status text, and terminal input behavior. · `tictactoe.html`

### Other components

- [tictactoe.html](https://github.com/moswinjeb/tic-tac-toe/blob/main/tictactoe.html): static entry · Single-page entry point containing UI, logic, and styling. · `tictactoe.html`

## Connections

- tictactoe.html → Game UI: loads
- Game UI → Player Input: emits interactions
- Player Input → Move Validation: cell selection
- Move Validation → Game State: applies valid move
- Game State → Outcome Evaluation: evaluates after move
- Outcome Evaluation → Game State: sets win or draw
- Game State → Rendered Feedback: renders state
- Rendered Feedback → Game UI: updates DOM
- Player Input → Reset Game: restart action
- Reset Game → Game State: clears state