AI in Games 🤖🎮

1. What is Game AI?

Game AI is a system that controls non-player characters (NPCs) to make decisions, react, and behave intelligently.

2. Goal of Game AI

Make NPCs:
- Smart 🧠
- Realistic 🎭
- Challenging 🎮
- Unpredictable ⚡

3. Types of Game AI

Rule-Based AI 📜 → fixed logic (if-else)
Pathfinding AI 🗺️ → movement to target
Behavior Trees 🌳 → decision systems
Machine Learning AI 🤖 → learning systems (advanced)

4. Pathfinding (Core AI)

A* Algorithm 🧭 → best path finding
NavMesh 🗺️ → walkable area system
Used for:
Enemy movement, NPC navigation

5. Behavior System

Idle 🧍 → waiting
Patrol 🚶 → walking path
Chase 🏃 → follow player
Attack 🔫 → combat mode
Flee 🏃‍♂️ → escape when weak

6. Enemy AI Example

If player nearby → chase
If close → attack
If health low → retreat
Else → patrol area

7. AI in Game Engines

Unity 🎮 → NavMesh + C# scripts
Unreal 🎮🔥 → Behavior Trees + Blueprints
Godot ⚡ → simple AI scripting

8. Advanced Game AI

Machine Learning 🤖 → adaptive enemies
Reinforcement Learning 🎯 → learns from player
Procedural AI 🌍 → dynamic behavior