ConditionalField Attribute

Attribute to show/hide or disable/enable a field based on a bunch of conditions.

Parameters:

ConditionType conditionType: How to evaluate the the specified booleans
optional, ConditionResult conditionResult: What happens to the property when the condition evaluates to true
optional, bool[] negatedValues: Specify which booleans to negate
params, string booleanNames: The names of the booleans to evaluate

The field will be shown when the result of the specified conditions return true:

using UnityEngine;
using EditorAttributes;

public class AttributesExample : MonoBehaviour
{
        [SerializeField] private bool condition01;
        [SerializeField] private bool condition02;

        [SerializeField, ConditionalField(ConditionType.AND, nameof(condition01), nameof(condition02))]
        private int field;
}

In this case we set the ConditionType to AND so the evaluation will be something like this: condition01 && condition02

We can also set it to OR and it will evaluate like this: condition01 || condition02

NAND which will evaluate like this: !(condition01 && condition02)

And NOR which evaluates like this: !(condition01 || condition02)

On top of the ConditionType we can also specify a certain condition we want to negate by creating a bool array that must contain the the conditions we want to negate in the order we added them. We set true for conditions we want to negate and set false for conditions we don’t:

using UnityEngine;
using EditorAttributes;

public class AttributesExample : MonoBehaviour
{
        [SerializeField] private bool condition01;
        [SerializeField] private bool condition02;

        [SerializeField, ConditionalField(ConditionType.AND, new bool[] { false, true }, nameof(condition01), nameof(condition02))]
        private int field;
}

So in this case we only negate condition02 and the evaluation will be something like this: condition01 && !condition02

By default the ConditionalField attribute will only show/hide fields, but you can also set it to only enable/disable fields, by setting the ConditionResult parameter to the value EnableDisable, like so:

using UnityEngine;
using EditorAttributes;

public class AttributesExample : MonoBehaviour
{
        [SerializeField] private bool condition01;
        [SerializeField] private bool condition02;

        [SerializeField, ConditionalField(ConditionType.AND, ConditionResult.EnableDisable, nameof(condition01), nameof(condition02))]
        private int field;
}