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fun_ascii_roguelike

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# ASCII Roguelike in Love2D

A classic ASCII-based roguelike game built with the Love2D game engine. Features procedural room generation, modular architecture, colored text markup system, health management, enemy AI, combat mechanics, comprehensive inventory system with equipment, and a professional pause menu system.

## Features

### Core Gameplay
- ✅ **Player-Editable Configurations** - Customize game balance via CSV files in appdata
- ✅ **Dynamic Configuration System** - Add new config types without code changes
- ✅ **Configuration Validation** - Comprehensive error checking with fallback to defaults
- ✅ **Integrated Font System** - No external font installation needed
- ✅ **Color Markup System** - Rich colored text with `[color]text[/color]` syntax
- ✅ **Health Management** - Visual health bar with damage/healing mechanics
- ✅ **Enemy AI System** - Multiple enemy types with different behaviors
- ✅ **Combat Mechanics** - Turn-based combat with damage and health systems
- ✅ **Room Generation** - Procedural rooms with corridors
- ✅ **Player Movement** - Arrow key movement with collision detection (WASD removed for UI compatibility)

### Advanced Combat & Creature System
- ✅ **Object-Oriented Creature Inheritance** - Modular Creature base class with Player/Enemy inheritance
- ✅ **Centralized Health Management** - HealthManager component with damage/heal/set methods
- ✅ **Unified Movement System** - Shared moveTo() functionality with class-specific behaviors
- ✅ **AttackHandler Combat System** - Centralized combat logic eliminating circular dependencies
- ✅ **Weapon-Based Combat** - Equipped weapons override base damage using dice formulas
- ✅ **Dice-Based Damage** - Realistic damage calculation using configurable dice (1d6, 2d4+1, etc.)
- ✅ **Visual Combat Logging** - ASCII-themed attack messages showing attacker/victim/weapon characters
- ✅ **Equipment Integration** - Right-hand weapon slot automatically used in combat
- ✅ **Consistent Death Handling** - Unified creature death with grid cleanup and kill counting

### Inventory & Equipment System
- ✅ **Full Inventory Management** - 10-slot backpack with equipment slots
- ✅ **Equipment System** - Right hand, left hand, head, body, and feet slots
- ✅ **Interactive Inventory UI** - Visual item selection with highlighting
- ✅ **Item System Architecture** - Object-oriented items with inheritance (Weapons, Armor, Consumables)
- ✅ **Weapon System** - Configurable weapons with damage and range stats
- ✅ **Equipment Actions** - Equip, unequip, drop, and use items
- ✅ **Smart Item Display** - Context-sensitive UI info for different item types
- ✅ **Inventory Controller** - Reusable inventory logic for players, enemies, and NPCs

### User Interface
- ✅ **Tabbed Interface System** - Player, Inventory, and Stats tabs
- ✅ **Pause Menu System** - In-game pause with semi-transparent overlay
- ✅ **Game Over Screen** - Statistics display with retry/quit options
- ✅ **ASCII-based UI** - Dedicated panels for logging, controls, and status
- ✅ **Real-time Logging** - Timestamped game events with color coding
- ✅ **Game State Management** - Seamless transitions between menu, gameplay, and pause
- ✅ **Modular Architecture** - Clean, organized code structure

## Installation & Setup

1. **Install Love2D** from [love2d.org](https://love2d.org/)
2. **Run the game**:
   - **Windows**: Open PowerShell/Command Prompt in the game directory and run:
     ```
     & "C:\Program Files\LOVE\love.exe" .
     ```
   - **Alternative**: Drag the game folder onto the Love2D executable
   - **General**: Run `love .` if Love2D is in your system PATH

**No additional setup required!** The game comes with an integrated DejaVu Sans Mono font system.

## Controls

### Movement & Combat
- **Arrow Keys**: Move player / Attack enemies (move into them)
- **Escape**: Pause game (during gameplay) / Resume game (in pause menu) / Quit game (from main menu)

### UI Navigation
- **P**: Player tab
- **I**: Inventory tab  
- **S**: Stats tab

### Inventory Controls
**Equipment Slots:**
- **R**: Right hand
- **L**: Left hand
- **H**: Head
- **B**: Body
- **F**: Feet

**Backpack Slots:**
- **1-9, 0**: Select backpack slots (0 = slot 10)

**Item Actions:**
- **E**: Equip item (from backpack to equipment)
- **U**: Unequip item (from equipment) / Use item (consumables from backpack)
- **D**: Drop item (remove from inventory) / Unequip item (from equipment slot)

**Note**: WASD keys have been removed for movement to avoid conflicts with inventory controls.

### Main Menu Controls
- **Arrow Keys** or **W/S**: Navigate menu options
- **Enter** or **Space**: Select option
- **Escape**: Quit game

### Pause Menu Controls
- **Arrow Keys** or **W/S**: Navigate menu options
- **Enter** or **Space**: Select option
- **Escape**: Resume game

### Pause Menu Options
- **Resume**: Continue exactly where you left off
- **New Game**: Start a fresh game session
- **Main Menu**: Return to the main menu
- **Close**: Quit the application

### Game Over Screen Controls
- **Arrow Keys** or **W/S**: Navigate menu options
- **Enter** or **Space**: Select option
- **Escape**: Return to main menu

### Game Over Screen Options
- **Retry**: Start a new game immediately
- **Main Menu**: Return to the main menu
- **Quit**: Exit the application

### Game Statistics
When you die, the game over screen displays:
- **Cause of death** (e.g., "Combat")
- **Enemies defeated** during the session
- **Time survived** in MM:SS format

## Inventory & Equipment System

The game features a comprehensive inventory and equipment system that allows players to manage items, weapons, and gear.

### Inventory Structure

**Equipment Slots (5 total):**
- **Right Hand (R)**: Primary weapon slot
- **Left Hand (L)**: Secondary weapon/shield slot  
- **Head (H)**: Helmet/hat slot
- **Body (B)**: Armor/clothing slot
- **Feet (F)**: Boots/shoes slot

**Backpack (10 slots):**
- **Slots 1-9**: Accessible via number keys 1-9
- **Slot 10**: Accessible via 0 key
- **Storage**: Weapons, consumables, armor, and other items

### Using the Inventory

1. **Open Inventory Tab**: Press `I` to switch to the inventory interface
2. **Select Items**: Use slot keys (R, L, H, B, F for equipment; 1-9, 0 for backpack)
3. **View Item Details**: Selected items show character, name, and type-specific stats
4. **Perform Actions**: Use action keys based on item location and type

### Item Actions

**From Backpack:**
- **Equip (E)**: Move weapon/armor to appropriate equipment slot
- **Use (U)**: Consume consumable items (potions, food, etc.)
- **Drop (D)**: Remove item from inventory permanently

**From Equipment:**
- **Unequip (U)**: Move equipped item back to backpack
- **Drop (D)**: Unequip item first, then remove from inventory

### Item Types

**Weapons:**
- Display damage and range statistics
- Can be equipped to hand slots
- Used for combat and attacking enemies

**Armor (Future):**
- Will display defense and durability stats
- Can be equipped to head, body, or feet slots
- Provides protection against damage

**Consumables (Future):**
- Will display effects and duration
- Used from backpack with 'U' key
- Single-use items like potions and food

### Smart Equipment System

- **Auto-Swapping**: Equipping to an occupied slot automatically unequips the current item
- **Inventory Full Protection**: Items won't be lost if backpack is full during unequipping
- **Context-Sensitive UI**: Actions change based on item location and type
- **Real-time Feedback**: All actions provide immediate log feedback

## Color Markup System

The game features a sophisticated color markup system for enhanced visual feedback:

### Available Colors
- **Basic**: `red`, `green`, `blue`, `yellow`, `cyan`, `magenta`, `white`, `black`
- **Extended**: `orange`, `purple`, `pink`, `lime`, `brown`, `gray`, `darkgray`, `lightgray`
- **Game-specific**: `health`, `damage`, `warning`, `info`, `success`, `error`

### Usage Examples
```
[red]Damage taken![/red]
[health]Health restored[/health]
[warning]Be careful![/warning]
Welcome to the [green]ASCII Roguelike[/green]!
```

## Customizing Game Configuration

The game features a powerful **configuration system** that allows players to easily customize game balance, enemy stats, and player attributes without modifying the game code. All configuration files are stored in **CSV format** for easy editing.

### Configuration System Overview

- **📁 Location**: Configuration files are automatically created in your system's **appdata folder** under `config/`
- **📊 Format**: Human-readable **CSV files** that can be edited with any text editor or spreadsheet application
- **🔄 Auto-generation**: Default configuration files are created automatically on first game launch
- **✅ Validation**: All configuration changes are validated to ensure game stability
- **🎯 Hot-reloading**: Changes take effect the next time you start the game

### Configuration Files

#### **Player Configuration** (`player.csv`)

Controls player stats and attributes:

```csv
property,value
health,10
baseAttackDamage,2
char,@
color,yellow
```

**Editable Properties:**
- `health` - Starting player health (1-1000)
- `baseAttackDamage` - Player attack damage (1-100)
- `char` - Player character symbol (single character)
- `color` - Player color (see available colors below)

#### **Enemy Configuration** (`enemy.csv`)

Controls all enemy types and their stats:

```csv
id,char,color,health,damage,name,moveChance,aggroRange
goblin,g,green,3,1,Goblin,0.3,3
orc,O,brown,5,2,Orc,0.2,4
skeleton,s,white,2,1,Skeleton,0.4,2
```

**Editable Properties:**
- `id` - Unique enemy identifier (used internally)
- `char` - Enemy character symbol (single character)
- `color` - Enemy color (see available colors below)
- `health` - Enemy health points (1-1000)
- `damage` - Enemy attack damage (1-100)
- `name` - Display name for the enemy
- `moveChance` - Probability of movement per turn (0.0-1.0)
- `aggroRange` - Range at which enemy will chase player (1-50)

### Available Colors

All color values support these options:
- **Basic**: `red`, `green`, `blue`, `yellow`, `cyan`, `magenta`, `white`, `black`
- **Extended**: `orange`, `purple`, `pink`, `lime`, `brown`, `gray`, `darkgray`, `lightgray`
- **Game-specific**: `health`, `damage`, `warning`, `info`, `success`, `error`

### How to Customize

1. **Launch the game** - Configuration files are created automatically on first run
2. **Locate config folder** - Find the `config/` folder in your system's appdata directory:
   - **Windows**: `%APPDATA%/LOVE/fun_ascii_roguelike/config/`
   - **macOS**: `~/Library/Application Support/LOVE/fun_ascii_roguelike/config/`
   - **Linux**: `~/.local/share/love/fun_ascii_roguelike/config/`
3. **Edit files** - Open `player.csv` or `enemy.csv` with any text editor or spreadsheet application
4. **Save changes** - Save the file in CSV format
5. **Restart game** - Changes take effect on next game launch

### Example Customizations

#### **Creating a Powerful Player**
```csv
property,value
health,25
baseAttackDamage,5
char,@
color,gold
```

#### **Adding a New Enemy Type**
Add a new row to `enemy.csv`:
```csv
id,char,color,health,damage,name,moveChance,aggroRange
dragon,D,red,20,8,Dragon,0.1,6
```

#### **Making Enemies Faster**
Increase `moveChance` values:
```csv
id,char,color,health,damage,name,moveChance,aggroRange
goblin,g,green,3,1,Goblin,0.8,3
orc,O,brown,5,2,Orc,0.7,4
skeleton,s,white,2,1,Skeleton,0.9,2
```

### Configuration Validation

The system includes comprehensive validation to prevent game-breaking changes:

- **Range checking** - All numeric values are validated against safe ranges
- **Type validation** - Ensures proper data types (numbers, strings, etc.)
- **Required fields** - Verifies all essential properties are present
- **Character validation** - Ensures character symbols are single characters
- **Color validation** - Checks that color names are valid
- **Error handling** - Invalid configurations fall back to defaults with error logging

### Adding New Configuration Types

The configuration system is designed to be **easily extensible**. To add new config types:

1. **Create config module** - Add new `.lua` file in `game/config/`
2. **Define structure** - Create default configuration object
3. **Add validation** - Implement `validate(config)` function
4. **Register config** - Add entry to `configs` table in `configManager.lua`

**Example new config registration:**
```lua
WEAPONS = {
    csvName = "weapons",
    luaName = "game.config.weapons",
    isArray = true,
    idField = "id"
}
```

The system will automatically handle CSV generation, loading, saving, and validation for any new configuration type!

### Troubleshooting

**Configuration not loading?**
- Check that CSV files are properly formatted
- Ensure all required columns are present
- Verify that values are within valid ranges
- Check game log for validation error messages

**Invalid values?**
- The game will log specific validation errors
- Invalid configurations automatically fall back to safe defaults
- Fix the CSV file and restart the game

**Reset to defaults?**
- Delete the configuration files from the appdata folder
- The game will recreate them with default values on next launch

## Game Architecture

### Font System (`fonts.lua`)
- **Integrated DejaVu Sans Mono** - Bundled with game files
- **Automatic sizing** - Character dimensions calculated automatically
- **No external dependencies** - Works out of the box

### ASCII Grid System (`asciiGrid.lua`)
- **Grid initialization** - Handles window-to-grid dimension calculation
- **Cell management** - Functions for setting, getting, and checking grid cells
- **Rendering engine** - Optimized character-by-character drawing
- **Boundary checking** - Validates coordinates and walkable areas
- **Foreground layer system** - Supports overlays without modifying base grid (available for future features)
- **Modular interface** - Clean API for grid manipulation

### Color System (`Colors.lua`)
- **20+ predefined colors** - Including game-specific colors
- **Markup parser** - Processes `[color]text[/color]` syntax
- **Efficient rendering** - Character-by-character color support

### UI System (`game/ui/`)
The game features a modular UI with four main components:

#### **Title Section** (`titleSection.lua`)
- Game title and author information
- Centered display with color markup

#### **Log Panel** (`Log.lua`)
- **Colored message logging** with markup support
- **Scrolling history** (20 messages maximum)
- **Timestamped entries** for all game events
- **Word wrapping** with color preservation

#### **Controls Panel** (`controls.lua`)
- **Color-coded categories**: Movement, Actions, System
- **Dynamic display** of available controls
- **Organized sections** for easy reference

#### **Health Bar** (`healthBar.lua`)
- **ASCII visual health bar** using Unicode block characters
- **Centered over game area** with zero-padded display
- **Format**: `HP: 010/010 [██████████]`
- **Color-coded status** (green = healthy, red = critical)

### Game Logic (`game/`)

#### **Player System** (`player.lua`)
- **Grid-based movement** with collision detection
- **Combat mechanics** - Attack enemies by moving into them
- **Health management** with damage/healing mechanics
- **Colored log messages** for all player actions
- **Boundary checking** to keep player in game area

#### **Enemy System** (`enemy.lua`)
- **Multiple enemy types** - Goblins, Orcs, and Skeletons
- **Enemy management** - Creation, spawning, and lifecycle handling
- **Combat system** - Damage players when adjacent
- **Different stats** - Health, damage, movement patterns per type
- **Modular AI integration** - Uses dedicated AI module for behaviors

#### **Enemy AI System** (`enemy/ai.lua`)
- **Behavioral patterns** - Aggressive, defensive, and guard behaviors
- **Smart pathfinding** - A* approach with obstacle avoidance
- **Detection systems** - Line of sight and aggro range mechanics
- **Multiple AI types** - Different strategies per enemy type
- **Advanced behaviors** - Chase, flee, patrol, and group coordination

#### **Map Generation** (`mapGenerator.lua`)
- **Procedural room generation** - Creates non-overlapping rooms
- **Configurable parameters** - Room count, min/max sizes
- **Collision detection** - Ensures rooms don't overlap
- **Smart placement** - Automatic room positioning with buffer zones
- **Extensible design** - Ready for corridor generation and advanced features

#### **Item System** (`game/items/`)
- **Base Item class** (`item.lua`) - Foundation for all game items with validation and UI info
- **Weapon class** (`weapon.lua`) - Extends Item with damage, range, and combat-specific validation
- **Armor class** (`armor.lua`) - Extends Item for defensive equipment (ready for future expansion)
- **Consumable class** (`consumable.lua`) - Extends Item for usable items (ready for future expansion)
- **ItemManager** (`itemManager.lua`) - Handles item creation, caching, and configuration integration
- **Property validation** - Ensures all items have required id, name, char, and color
- **Type safety** - Validates item-specific properties (damage formulas, ranges, etc.)
- **Inheritance system** - Clean object-oriented design with specialized item types
- **UI integration** - Dynamic UI info display based on item type
- **Configuration integration** - Seamless connection to weapon configuration system

#### **Inventory System** (`game/inventoryController.lua`)
- **Equipment management** - 5 equipment slots (right hand, left hand, head, body, feet)
- **Backpack storage** - 10-slot inventory for carrying items
- **Smart equipping** - Auto-swapping and validation when equipping items
- **Context-aware actions** - Different actions based on item location and type
- **Reusable controller** - Same system can be used for players, enemies, and NPCs
- **Full item lifecycle** - Add, remove, move, equip, unequip, drop, and use items
- **Safety checks** - Prevents item loss with full inventory protection
- **Real-time feedback** - Immediate log messages for all inventory actions

#### **Tabbed UI System** (`game/ui/`)
- **Tab System** (`tabSystem.lua`) - Central controller for tab navigation and input routing
- **Player Tab** (`tabs/playerTab.lua`) - Displays player stats and information
- **Inventory Tab** (`tabs/inventoryTab.lua`) - Interactive inventory management with visual selection
- **Stats Tab** (`tabs/statsTab.lua`) - Game statistics and progress tracking
- **Modular design** - Easy to add new tabs and UI components
- **Context-sensitive controls** - Different key bindings per tab
- **Visual feedback** - Highlighting, color coding, and selection indicators
- **Responsive layout** - Adapts to different content and screen sizes

#### **Controls System** (`controls.lua`)
- **Centralized input handling** - All keyboard controls in one module
- **Game state management** - Handles victory/defeat conditions
- **Turn-based mechanics** - Coordinates player and enemy actions
- **Modular design** - Easy to extend with new controls and features

#### **Menu System** (`menu/menu.lua`, `game/gameState.lua`)
- **Main menu interface** - Title screen with navigation options
- **Game state management** - Seamless transitions between menu, gameplay, and pause
- **Dynamic background** - Live animated world behind menu
- **Reusable components** - Modular design for future pause/options menus

#### **Pause Menu System** (`menu/pauseMenu.lua`)
- **In-game pause functionality** - Press Escape to pause during gameplay
- **Semi-transparent overlay** - Uses Love2D graphics for true transparency effect
- **Game state preservation** - Current game remains visible behind overlay
- **Menu navigation** - Resume, New Game, Main Menu, or Quit options
- **Non-destructive pausing** - Game continues exactly where you left off
- **Professional visual design** - Clean overlay with proper opacity and text rendering

#### **Game Over System** (`menu/gameOverScreen.lua`)
- **Death detection** - Automatically triggers when player health reaches zero
- **Game statistics display** - Shows enemies killed, time survived, and cause of death
- **Semi-transparent overlay** - Dark red tint for dramatic effect
- **Retry functionality** - Quick restart without returning to main menu
- **Statistics tracking** - Real-time tracking of game progress and performance
- **Professional presentation** - Clean layout with proper visual hierarchy

#### **Background Map System** (`menu/backgroundMap.lua`)
- **Animated world generation** - Procedural dungeons with moving enemies
- **Configurable opacity** - Adjustable background visibility
- **Reusable component** - Can be used in any menu (main, pause, etc.)
- **Performance optimized** - Efficient enemy movement and rendering

#### **Room System** (`room.lua`)
- **Map generator integration** - Uses procedural generation
- **Player placement** - Smart starting position selection
- **Room management** - Stores and manages generated rooms
- **Legacy compatibility** - Maintains existing interface

## Code Structure

```
fun_ascii_roguelike/
├── main.lua              # Main game loop and Love2D callbacks
├── conf.lua              # Love2D configuration settings
├── fonts.lua             # Integrated font management system
├── asciiGrid.lua         # ASCII grid rendering and management
├── Colors.lua            # Color palette and markup parser
├── LocalFileUtil.lua     # File operations for appdata storage
├── util/                 # Utility modules and helper functions
│   ├── _index.lua        # Utility module loader
│   ├── TextUtil.lua      # Text positioning and rendering utilities
│   ├── LocalFileUtil.lua # File operations and image saving utilities
│   └── CloneUtil.lua     # Deep object cloning utilities
├── sandbox/              # Security sandbox system
│   ├── Sandbox.lua       # Main sandbox initialization and restrictions
│   ├── SaveOs.lua        # OS command whitelist and protection
│   └── SaveIo.lua        # IO operation restrictions and logging
├── menu/                 # Menu system components
│   ├── menu.lua          # Main menu system
│   ├── pauseMenu.lua     # In-game pause menu system
│   ├── gameOverScreen.lua # Game over screen with statistics
│   └── backgroundMap.lua # Animated background world for menus
├── tests/                # Unit testing framework and test files
├── game/
│   ├── __index.lua       # Global module loader and dependencies
│   ├── configManager.lua # Dynamic configuration management system
│   ├── config/           # Default configuration modules
│   │   ├── player.lua    # Default player configuration with validation
│   │   ├── enemy.lua     # Default enemy configurations with validation
│   │   └── weapons.lua   # Default weapon configurations with dice damage
│   ├── dice.lua          # Dice rolling system with formula parsing
│   ├── room.lua          # Room system and player placement
│   ├── mapGenerator.lua  # Procedural dungeon generation
│   ├── inventoryController.lua # Equipment and backpack management system
│   ├── creatures/        # Creature system with OOP inheritance
│   │   ├── creature.lua  # Base Creature class with shared functionality
│   │   ├── HealthManager.lua # Centralized health management component
│   │   ├── player.lua    # Player creation, movement, and combat
│   │   └── enemy.lua     # Enemy creation, management, and AI integration
│   ├── combat/           # Combat system components
│   │   └── AttackHandler.lua # Centralized attack logic with weapon integration
│   ├── items/            # Item system with inheritance
│   │   ├── item.lua      # Base Item class for all game items
│   │   ├── weapon.lua    # Weapon class extending Item with combat stats
│   │   ├── armor.lua     # Armor class extending Item (future expansion)
│   │   ├── consumable.lua # Consumable class extending Item (future expansion)
│   │   └── itemManager.lua # Item creation and configuration integration
│   ├── controls.lua      # Keyboard input and game controls
│   ├── gameState.lua     # Game state management (menu/playing/paused/game_over)
│   ├── enemy/
│   │   └── ai.lua        # Enemy AI behaviors and pathfinding
│   ├── ui.lua            # Main UI controller
│   └── ui/
│       ├── titleSection.lua   # Game title and info
│       ├── Logger.lua         # Colored message logging system
│       ├── controls.lua       # Control instructions
│       ├── healthBar.lua      # ASCII health visualization
│       ├── tabSystem.lua      # Central tab navigation controller
│       └── tabs/              # Individual tab implementations
│           ├── playerTab.lua  # Player stats and information
│           ├── inventoryTab.lua # Interactive inventory management
│           └── statsTab.lua   # Game statistics and progress
└── assets/
    └── fonts/
        └── DejaVuSansMono.ttf # Integrated monospace font
```

### Configuration System Architecture

The game features a **modular configuration system** located in `game/config/` and managed by `configManager.lua`:

#### **ConfigManager** (`game/configManager.lua`)
- **Dynamic loading** - Automatically loads and validates all configuration types
- **CSV handling** - Converts between Lua tables and human-readable CSV files
- **Validation integration** - Uses config-specific validation functions
- **Error handling** - Falls back to defaults when configurations are invalid
- **Extensible design** - Easy to add new configuration types

#### **Default Configurations** (`game/config/`)
- **player.lua** - Default player stats and validation rules
- **enemy.lua** - Default enemy configurations with comprehensive validation
- **Modular validation** - Each config includes its own `validate()` function
- **Type safety** - Ensures all configuration values are valid and within safe ranges

#### **User Configurations** (Appdata CSV Files)
- **player.csv** - User-editable player configuration
- **enemy.csv** - User-editable enemy configurations  
- **Auto-generated** - Created automatically with defaults if missing
- **Validated** - All user changes are validated against default rules

### Utility System Architecture

The game includes comprehensive utility modules for common operations:

#### **Utility Modules** (`util/`)
- **TextUtil.lua** - Text positioning, centering, and rendering utilities
- **LocalFileUtil.lua** - File operations, image saving, and appdata management
- **CloneUtil.lua** - Deep object cloning for data protection and copying
- **_index.lua** - Module loader for automatic utility imports

#### **Sandbox Security System** (`sandbox/`)
- **Sandbox.lua** - Main security initialization and global function restrictions
- **SaveOs.lua** - OS command whitelist and protection against harmful system calls
- **SaveIo.lua** - IO operation restrictions and logging for file access control
- **Extensible protection** - Modular security layers for different system access levels

## Development Features

#### **Modular Design**
- **Separation of concerns** - Each module handles specific functionality
- **Easy maintenance** - Add new features without affecting existing code
- **Reusable components** - UI modules can be easily extended
- **Clean architecture** - Logical organization across multiple directories

#### **Color-Coded Feedback**
- **Damage events** appear in red with damage markup
- **Healing events** appear in green with health markup
- **System messages** use appropriate warning/info colors
- **Enhanced readability** through consistent color usage

#### **Health System**
- **Visual health bar** with Unicode block characters
- **Zero-padded display** for consistent formatting
- **Color-coded status** indicating health condition
- **Real-time updates** as health changes

#### **Combat System**
- **Turn-based mechanics** - Player moves, then enemies act
- **Bump combat** - Attack by moving into enemies
- **Multiple enemy types** - Each with unique stats and behaviors
- **Victory/defeat conditions** - Clear objectives and game over states

#### **Game State Management**
- **Four distinct states** - Menu, Playing, Paused, and Game Over
- **Seamless transitions** - Smooth state changes without data loss
- **State preservation** - Perfect game state maintenance during pause
- **Clean separation** - Each state has dedicated rendering and input handling
- **Statistics tracking** - Real-time game performance monitoring

## Future Enhancements

- [x] ~~Enemy entities with AI behavior~~ ✅ **Implemented!**
- [x] ~~Combat mechanics with weapons/spells~~ ✅ **Basic combat implemented!**
- [x] ~~Pause menu system~~ ✅ **Professional pause menu implemented!**
- [x] ~~Game state management~~ ✅ **Complete state system implemented!**
- [x] ~~Game over screen~~ ✅ **Statistics-based game over screen implemented!**
- [x] ~~Costumizable configs~~ ✅ **config Manager which can read from costumizable files**
- [ ] Item and inventory system
- [ ] Extended procedural dungeon generation
- [ ] Advanced AI behaviors (group tactics, special abilities)
- [ ] Line of sight and fog of war
- [ ] Experience points and leveling system
- [ ] Save/load game functionality
- [ ] Sound effects and music
- [ ] Additional color themes
- [ ] Settings/options menu
- [ ] Multiple difficulty levels
- [ ] High score system

## Technical Notes

### Font Integration
The game uses an **integrated DejaVu Sans Mono font** approach, eliminating the need for:
- External font downloads
- Manual font installation
- Font fallback complexity
- Cross-platform font issues

### Color Performance
The color markup system is optimized for:
- **Real-time parsing** of markup tags
- **Efficient character rendering** with individual colors
- **Memory-conscious** color object reuse
- **Scalable markup** supporting nested and complex formatting

### Pause Menu Architecture
The pause menu system uses a **hybrid rendering approach**:
- **Love2D graphics overlay** - Semi-transparent rectangle for darkening effect
- **Direct text rendering** - Menu text drawn with Love2D's print functions
- **Non-destructive design** - Original game grid remains completely unmodified
- **True transparency** - Game state clearly visible behind overlay

### Performance Optimizations
- **Efficient grid rendering** - Only draws non-space characters
- **Smart enemy AI** - Optimized pathfinding and behavior calculations
- **Minimal memory usage** - Proper cleanup and resource management
- **Foreground layer system** - Available for future overlay features

### Love2D Configuration
- **Window title**: "ASCII Roguelike"
- **Resizable window**: Enabled for flexible gameplay
- **Console**: Disabled for release builds
- **High DPI**: Supported for modern displays

## Testing

The project includes a comprehensive unit testing framework to ensure code quality and functionality.

### Test Structure

- **Test Framework**: Custom Lua unit testing library located in `tests/unitTestLib/`
- **Test Files**: Individual test modules in `tests/unittests/tests/` covering core game functionality
- **Automated Testing**: Pre-commit hooks ensure tests pass before code changes

### Running Tests

To run the complete test suite:

```bash
lua tests/unitTestLib/main.lua
```

**Requirements**: Standard Lua interpreter (Love2D not required for tests)

### Test Coverage

The test suite includes comprehensive testing for:

- **Dice System**: Formula parsing, validation, and random roll range testing
- **Game Mechanics**: Various core game systems and utilities
- **Configuration Management**: Validation and error handling
- **Data Structures**: Array utilities and game logic components

### Test Features

- **Automated Test Discovery**: Tests are automatically found and executed
- **Detailed Reporting**: Clear pass/fail status with descriptive error messages  
- **Modular Design**: Easy to add new test files for additional functionality
- **Mock Systems**: Controlled testing environments for randomized components

### Pre-commit Testing

The repository includes Git pre-commit hooks that automatically run the test suite before allowing commits, ensuring code quality and preventing regressions.

## Technical Architecture

### Creature System Hierarchy

The game uses a modern object-oriented inheritance system built on Lua metatables:

```
Creature (Base Class)
├── HealthManager integration
├── Shared movement logic (moveTo)
├── Grid placement (placeOnGrid)
├── Inventory system integration
│
├── Player (Inherits from Creature)
│   ├── Player-specific combat logic
│   ├── Input handling
│   └── Enemy attack detection
│
└── Enemy (Inherits from Creature)
    ├── AI behavior integration
    ├── Kill counting
    └── Enemy-specific movement restrictions
```

### Combat System Architecture

**AttackHandler (Centralized Combat)**
- Eliminates circular dependencies between Player/Enemy
- Weapon-aware damage calculation
- Dice-based damage rolling (1d6, 2d4+1, etc.)
- Unified death handling with grid cleanup
- Visual ASCII-themed combat logging

**Weapon Integration**
- Right-hand equipment slot (`inventory.equipment.r`) automatically used
- Weapon damage formulas override base creature damage
- Fallback to `baseAttackDamage` for unarmed combat
- Real-time dice roll logging for transparency

### Component Systems

**HealthManager**: OOP health management with bounds checking
- `damage(amount)` - Apply damage with clamping
- `heal(amount)` - Restore health with max limit  
- `set(amount)` - Direct health setting

**Dice System**: Flexible damage calculation
- Supports formats: `d6`, `2d6`, `1d8+2`, `3d4-1`
- Validation and error handling
- Deterministic testing support

**InventoryController**: Reusable inventory logic
- Equipment slots (r, l, h, b, f)
- 10-slot backpack system
- Context-sensitive item actions

### Modular Design Benefits

1. **No Circular Dependencies**: AttackHandler eliminates Player ↔ Enemy references
2. **Code Reusability**: Shared Creature functionality reduces duplication
3. **Extensibility**: Easy to add new creature types or combat features
4. **Maintainability**: Centralized systems make debugging and updates simpler
5. **Consistency**: All creatures use the same health, movement, and combat systems

## Contributing

This is a learning project demonstrating:
- Love2D game development patterns
- Modular Lua architecture with OOP inheritance
- ASCII art and text-based game design
- Color markup system implementation
- Integrated asset management
- Game state management systems
- Semi-transparent overlay techniques
- Professional pause menu implementation
- Object-oriented creature and combat systems
- Centralized component architecture

### Project Highlights
- **Complete roguelike experience** with procedural generation
- **Professional UI systems** with colored text and visual feedback
- **Advanced enemy AI** with multiple behavior patterns
- **Modern combat system** with weapon-based dice damage
- **Object-oriented creature hierarchy** with shared functionality
- **Centralized attack handling** eliminating circular dependencies
- **Equipment integration** with automatic weapon usage
- **Clean modular architecture** enabling easy feature additions
- **Modern pause menu** with transparency effects
- **Comprehensive documentation** for learning and reference

### Recent Major Updates (Latest Session)
- **Creature Inheritance System**: Refactored to use proper OOP inheritance
- **HealthManager Component**: Centralized health management with bounds checking
- **AttackHandler System**: Unified combat logic with weapon integration
- **Dice-Based Combat**: Realistic damage using configurable dice formulas
- **Equipment Integration**: Weapons automatically used in combat calculations
- **Visual Combat Logging**: ASCII-themed attack messages with character display

Feel free to explore the code and adapt it for your own ASCII roguelike projects!

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