🧠 Vision Field System for Unity

VisionFieldSystem — is a modular and flexible field of view (FOV) system for Unity that combines visual cone rendering with target detection, taking obstacles into account. It supports various vision shapes and is fully configurable through the Inspector. Perfect for enemies, turrets, NPCs, guards, and any AI perception systems.

📽️ Demo Preview

Type	Mesh + Detector Pair	Preview
Circle	VisionFieldMesh + TargetFieldDetector
Arrow	VisionArrowMesh + TargetArrowDetector
Half Ellipse	VisionHalfEllipseMesh + TargetHalfEllipseDetector
Triangle	VisionOffsetTriangleMesh + TargetOffsetTriangleDetector
Square	VisionSquareMesh + TargetSquareDetector
Rhombus	VisionRhombusMesh + TargetRhombusDetector

📽️ Demo Videos

https://github.com/user-attachments/assets/c0864105-69f8-498b-9de5-39c403db2e54

https://github.com/user-attachments/assets/3f6d499e-c2e4-4b62-b511-3e272ae8206d

https://github.com/user-attachments/assets/8ce44c5d-a9ee-48d7-9dfa-58d729b61d30

⚙️ Features

• 🧩 Visual FOV using procedural mesh
• 🎯 Raycast-based target detection with obstacle mask
• 🧪 Debug Gizmos for ray tracing and hit visualization
• 🛠️ Fully customizable parameters (width, height, segments, tilt, offset)
• 🎥 Runtime detection events: OnTargetDetected, OnTargetLost
• 🌗 RaycastOffset to avoid surface clipping
• ♻️ Clean modular architecture: easy to extend

🧰 How to Use

1. Add a Vision Mesh component (e.g. VisionFieldMesh) to a GameObject.
2. Attach the corresponding Target Detector (e.g. TargetFieldDetector).
3. Set required masks and dimensions in the inspector.
4. Enable Is Show Debug to see rays and hit points in the Scene.
5. Subscribe to target events:

🗂️ Project Structure
bash
Assets/
└── Code/
    ├── Cameras/
    ├── Editors/
    ├── Enemies/
    ├── Infrastructure/
    ├── Levels/
    ├── Players/
    ├── UI/
    ├── Utilities/
    ├── Weapon/
    └── VisionCone/
        ├── Detectors/
        ├── Factory/
        ├── Provider/
        └── Visions/

_detector.OnTargetDetected += enemy => Debug.Log($"🎯 Seen: {enemy.name}");
_detector.OnTargetLost += enemy => Debug.Log($"👀 Lost: {enemy.name}");

✅ Requirements

• Unity 2021.3+
• URP or Built-in RP
• DOTween (optional, for demo animations)