UnityHealthBar

This is a starter kit for a health bar system in Unity.

![alt text][sampleImage] [sampleImage]: https://github.com/Dartteon/UnityHealthBar/blob/master/GithubImage.PNG "Sample"

##Importing to Your Project Simply open your Unity project, and then double-click the package file (HealthBarStarterPack.unitypackage).
A popup will appear in Unity to prompt you - click "Import", and all the needed files will be inside your project.

##Example To view the example, drag the TestEnemy (HealthBarStarterPack/Prefabs/TestEnemy) prefab into your scene.
When you press Play, a HealthBar should spawn above it. When you hold SpaceBar down, it should get damaged gradually, and the health bar should reflect that!

##Using the Health System The Health class is lightweight and simple to use. To use it, attach it to the GameObject you want it on.
The Health system must be initialized with Initialize(float maxHealthAmount).
To deal damage, call Damage (float amount).

##Using the BarUI System with Health System

1. Drag and drop the HealthBar prefab into your scene
2. Attach the HealthBar gameObject from (1) onto the gameObject you want (i.e Player)
3. Attach the Health script onto the same gameObject from (2)
4. Inside the master script of the gameObject (e.g Player), add this chunk to Start() (or Initialize() if you made your own)
   (Please change the value inside Initialize(100f) to whatever Health amount you want)

    health = transform.GetComponent<Health> ();  
    health.Initialize (100f);  
    BarUI barUi = GameObject.Instantiate(healthBarPrefab, transform).GetComponent<BarUI> ();  
    barUi.transform.localPosition = new Vector3 (0f, .4f, 0f);  
    barUi.Initialize (health);

###Using BarUI on Other Things If you wish to use this on other systems (e.g Mana Systems), follow these steps:

1. Ensure your new class inherits from ObservableRatio class (i.e public class ManaSystem : ObservableRatio)
2. Override GetRatio() by making a new method in the class,
   i.e public override float GetRatio() { //calculate ratio here }
3. Drag HealthBar to your gameObject, and rename it accordingly (i.e ManaSystem)
4. Ensure that the BarUI in HealthBar gets initialized to observe your class. Here is an example, for a class ManaSystem, with the HealthBar gameObject renamed to ManaBar

    ManaSystem manaSystem = transform.GetComponent<ManaSystem> ();  
    manaSystem.Initialize (100f);  
    BarUI barUi = transform.Find("ManaBar").GetComponent<BarUI> ();  
    barUi.Initialize (manaSystem);