2D Enemy AI System

What's Included?

Core AI Systems:

- A* Pathfinding with diagonal movement

- Smart collision avoidance with wall sliding

- Path optimization using line-of-sight

- Dynamic obstacle detection

- Field-of-view (FOV) cone detection

- Raycast line-of-sight checks

4 Enemy Types Ready to Use:

1. Dog - 360° detection, aggressive chasing

2. Security Guard - FOV-based patrol and investigation

3. Security Camera - Rotating cone detection

4. Motion Detector - Movement-based sensor

AI Behaviors:

- Waypoint patrol system

- Chase and pursue mechanics

- Investigation of suspicious activity

- Return to patrol after losing target

- Noise detection and response

Developer-Friendly Features:

- Fully commented C# source code

- XML documentation on all public APIs

- Inspector tooltips on every field

- Gizmo visualization for debugging

- No external dependencies

- Modular and extensible architecture

Perfect For:

- Stealth games (like Metal Gear, Hitman style)

- Top-down action games

- Puzzle games with enemies

- Tower defense variations

- Any 2D game requiring smart enemies

Key Features

Easy Setup:

- Drag-and-drop components

- Configure in Inspector - no coding required

- Works with any 2D project

- Detailed documentation with 10+ examples

Performance Optimized:

- Efficient A* implementation

- Configurable update rates

- Mobile-ready

- Scales to hundreds of enemies

Extensible Design:

- Interface-based architecture

- Create custom enemy types easily

- Hook into detection events

- Customize alarm behaviors

Production Ready:

- Used in released games

- Clean, professional code

- Follows Unity best practices

- Well-tested and stable

 What You Get

- 9 C# scripts (fully documented)

- Comprehensive PDF documentation

- 10+ code examples

- Quick start guide

- Troubleshooting guide

- Lifetime updates

Requirements

- Unity 2021.3 or higher

- Any render pipeline (URP, HDRP, Built-in)

- 2D Physics package

Platforms

Works on ALL Unity platforms:

- PC (Windows, Mac, Linux)

- Mobile (iOS, Android)

- WebGL

- Consoles

Documentation

Includes detailed docs covering:

- Setup instructions

- Component reference

- Code examples

- Best practices

- Performance tips

- Troubleshooting

Perfect for Beginners and Pros

Whether you're new to Unity or an experienced developer, this asset saves you weeks of development time. The system is designed to be:

- Easy to use out of the box

- Simple to customize

- Flexible to extend

Updates & Roadmap

We're committed to improving this asset. Planned features:

- Behavior trees

- Group coordination

- Advanced perception systems

- Editor tools

- More enemy types

-3D