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Damage Everything

Part of the Game Architecture in Unity section of Coddy's Unity journey. Lesson 52 of 64.

challenge icon

Challenge

Medium

Let the sword hurt anything that can be hurt, through an interface.

  1. In IDamageable.cs, declare void TakeDamage(int amount);.
  2. Enemy implements IDamageable: TakeDamage takes amount off health and destroys the enemy at 0 or below.
  3. In Hero.Swing(), replace the tag test and Destroy with hit.TryGetComponent(out IDamageable target) and target.TakeDamage(swingDamage);.

Press Play and swing at a grunt: it takes two hits. Then Check.

Try it yourself

// A later lesson fills this in: anything that can be hurt.
public interface IDamageable
{
}

All lessons in Game Architecture in Unity

1Components, Not Hierarchies

Small ComponentsA Base Enemy ScriptAbstract ComponentsComponents Working TogetherRecap: Modular TurretRecap: Twin Cannon

4Serialized Data

Serializable ClassesLists in the InspectorEnums in the InspectorRecap: Loot TableRecap: Roll the Loot

7State Machines

States as ClassesThe Alert StateA State MachineTransitionsEnemy BrainsThe Knight AttacksRecap: Door States

10Project: Arena Survivor

The HeroEnemy TypesProject lessonDamage EverythingProject lessonEnemies Strike BackProject lessonWaves of EnemiesProject lessonClear the ArenaProject lessonPower-UpsProject lessonShields and RewardsProject lessonThe HUDProject lessonSurviveProject lessonKeep the Best RunProject lesson

2Interfaces in Unity

IDamageableInterfaces and TryGetComponentGetComponentsRecap: Interact KeyRecap: Nearest in Reach

5ScriptableObjects

Data AssetsWeapon StatsShared SettingsSave the WindWaves as DataRecap: Item DatabaseRecap: Buy from the Shop

8Reusable Code

Extension MethodsA Generic SingletonGeneric HelpersRecap: FindNearest

11Final Challenges

Tower Defense LiteCrafting BenchCrafting RecipesBoss Fight

3Events

C# Events in UnitySubscribe in OnEnableUnityEvent FieldsEvents Drive the UIRecap: Achievement PopupRecap: Popup Timer

6Saving with JSON

JsonUtilitySave the GameLoad and DefaultsRecap: Save SlotsPick and Delete a Slot

9Object Pooling

Why Pool ObjectsA Pool with a QueueUnity's ObjectPoolRecap: Bullet Pool

Practice on your own: Unity playground