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ComponentTypeSelector

Change a component's class right in the Inspector while shared fields keep their values.

Quick start​

public abstract class EnemyBase : MonoBehaviour
{
    [SerializeField] private ComponentTypeSelector _enemyType;
    [SerializeField] private float _health = 100f;
}
FastEnemy.csArmoredEnemy.cs
public sealed class FastEnemy : EnemyBase
{
    [SerializeField]
    private float _speed = 25f;
}
public sealed class ArmoredEnemy : EnemyBase
{
    [SerializeField]
    private int _armor = 10;
}

The list offers the concrete subclasses of the class that declares the field, with no <None> entry.

Picking ArmoredEnemy instead of FastEnemy keeps Health = 75Picking ArmoredEnemy instead of FastEnemy keeps Health = 75

FieldFastEnemyArmoredEnemy pickedBack to FastEnemy
Health757575
Speed40—25
Armor—10—

When the type does not change​

The switch follows the rules of Add Component: it first adds the components the new class lists in [RequireComponent], and one Undo reverts it together with them. The class stays as it was and the Console shows a warning when:

  • the class has no script file of its own with the same name, such as a nested class or a second class in a file;
  • the new class is marked [DisallowMultipleComponent] and the GameObject already has one;
  • the switch would remove a class another component requires;
  • the new class requires a component that cannot be added, such as the abstract Collider.

Package sample​

The Types sample shows component type switching.

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