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Recap: Interact Key

Part of the Game Architecture in Unity section of Coddy's Unity journey. Lesson 10 of 64.

challenge icon

Challenge

Easy

Give the player an interact key; Interactor is ready.

  1. Declare public interface IInteractable with void Interact();, and make Door, Chest and Lever implement it.
  2. Door: turns 90 degrees around y, logging Door opened, then back, Door closed.
  3. Chest: Found 5 coins, then The chest is empty.
  4. Lever: switches bridge on or off and logs Lever pulled.

Press Play and use everything. Then Check.

Try it yourself

using UnityEngine;

public class Door : MonoBehaviour
{
}

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