In this lesson, you will learn how to architect level generation tools that utilize ScriptableObjects to configure gameplay parameters, allowing you to iterate on level design without ever touching your C# scripts.
Moving Beyond Hard-Coded Values
In previous modules, we decoupled logic using the Command pattern and Strategy pattern. Now, we apply those principles to level design. Instead of hard-coding enemy counts, spawn rates, or environmental modifiers into your LevelManager script, we shift that data into ScriptableObject containers.
By defining a LevelConfiguration asset, you create a "Source of Truth" that the game engine reads at runtime. This allows designers to duplicate an asset, tweak a few sliders, and instantly test a new level variant—all while the game is running or without entering the Unity Editor's code compiler.
Implementing a Configuration Container
Start by creating a simple data container that stores your level metadata:
[CreateAssetMenu(fileName = "NewLevelConfig", menuName = "Levels/Configuration")]
public class LevelConfig : ScriptableObject
{
public int enemyCount;
public float spawnInterval;
public GameObject environmentPrefab;
public Color ambientLightColor;
}
Next, your LevelGenerator service—which we might have injected using a dependency injection container like VContainer—simply references this asset:
public class LevelGenerator : MonoBehaviour
{
public LevelConfig activeLevel;
public void Generate()
{
// Use the ScriptableObject to drive the logic
for(int i = 0; i < activeLevel.enemyCount; i++)
{
SpawnEnemy(activeLevel.spawnInterval);
}
RenderSettings.ambientLight = activeLevel.ambientLightColor;
}
}
Why This Matters
When your logic is decoupled from your data, your gameplay systems become "engine-agnostic." You aren't writing code to spawn 5 or 10 enemies; you are writing code to spawn activeLevel.enemyCount enemies. This transformation allows you to build a vast library of level profiles as reusable assets, significantly reducing the surface area for bugs when you need to balance your game's difficulty or visual presentation.
Key Takeaway: By offloading gameplay parameters into ScriptableObjects, you transform your code into a flexible engine capable of executing any level design defined by your data assets.