• What Is Unity?
• Why Unity?
  
• Concepts
  
• Coding
• Neat Stuff
  

• Flexible Asset Pipeline 
• Multi-Platform
  
• Licensing 
• (free until  game makes 
• annual income of $100,000)
• Large and generally friendly community

1. Component
   
2. GameObject
3. Prefab
   
4. Scene
5. Asset
6. Sprite
7. Scene
8. Mecanim Animation

• Images 
  
• Scripts 
  
• Models 
  
• Audio
  
• Video
  
• Prefab
• Scene
• Animation
• Font

• Sprite - A two dimensional "2d" Image
  
• Sprite Sheet - A large 2d image containing a collection of smaller images or "Sub Images" a.k. Texture Atlas
  
• Lots of examples
• Recommend:The Almighty Grass Tile

• MonoBehavior
• Getting Input
• Collision Detection
• Coroutines
• Update Loop "Execution Order"

• MonoBehavoir - The base class from which scripts are derived from 
• Contains functions that hook into the majority of Unity's "Events" including object lifecycle, Gui, Collision, User Input, Networking etc...
  
• Contans functions for query of gameobjects and components based on tag, layer, type, relationship etc...

using UnityEngine;
using System.Collections;

public class Example : MonoBehaviour {
    public GameObject projectile;
    void Update() {
        if (Input.GetButtonDown("Fire1"))
            Instantiate(projectile, transform.position, transform.rotation) as GameObject;
        
    }
}

using UnityEngine;
using System.Collections;

public class Example : MonoBehaviour {
    void OnCollisionEnter2D(Collision2D coll) {
        if (coll.gameObject.tag == "Enemy")
            coll.gameObject.SendMessage("ApplyDamage", 10);
        
    }
}

• Coroutine-A function that can suspend execution "yield" until a given time
• Used for time and frame specific actions that require deferred execution
  
• Used a lot internally in Unity to implement the "Game Loop"

1. Awake Calls
   
2. Start Calls
   
3. Fixed Updates (Can be called multiple times)
1. Physics
2. Triggers
3. Collision
4. Updates
5. Animations
6. Rendering