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Power-Ups

Part of the Game Architecture in Unity section of Coddy's Unity journey. Lesson 56 of 64.

Challenge

Medium

Let the hero pick up hearts through one interface.

In IPickup.cs, declare void Collect(Hero hero);.
Heart implements IPickup: Collect calls hero.Heal(amount) and destroys the heart.
In Hero, public void Heal(int amount) adds up to maxHealth and logs Hero HP: 4; OnTriggerEnter calls Collect(this) on an IPickup it touches.

Press Play, take a hit and walk into the heart. Then Check.

Try it yourself

// A later lesson fills this in: anything the hero can pick up.
public interface IPickup
{
}

All lessons in Game Architecture in Unity

1Components, Not Hierarchies

Small Components A Base Enemy Script Abstract Components Components Working Together Recap: Modular Turret Recap: Twin Cannon

4Serialized Data

Serializable Classes Lists in the Inspector Enums in the Inspector Recap: Loot Table Recap: Roll the Loot

7State Machines

States as Classes The Alert State A State Machine Transitions Enemy Brains The Knight Attacks Recap: Door States

10Project: Arena Survivor

The Hero Enemy Types

Project lesson

Damage Everything

Project lesson

Enemies Strike Back

Project lesson

Waves of Enemies

Project lesson

Clear the Arena

Project lesson

Power-Ups

Project lesson

Shields and Rewards

Project lesson

Project lesson

Project lesson

Keep the Best Run

Project lesson

2Interfaces in Unity

IDamageable Interfaces and TryGetComponent GetComponents Recap: Interact Key Recap: Nearest in Reach

5ScriptableObjects

Data Assets Weapon Stats Shared Settings Save the Wind Waves as Data Recap: Item Database Recap: Buy from the Shop

8Reusable Code

Extension Methods A Generic Singleton Generic Helpers Recap: FindNearest

11Final Challenges

Tower Defense Lite Crafting Bench Crafting Recipes Boss Fight

3Events

C# Events in Unity Subscribe in OnEnable UnityEvent Fields Events Drive the UI Recap: Achievement Popup Recap: Popup Timer

6Saving with JSON

JsonUtility Save the Game Load and Defaults Recap: Save Slots Pick and Delete a Slot

9Object Pooling

Why Pool Objects A Pool with a Queue Unity's ObjectPool Recap: Bullet Pool

Practice on your own: Unity playground