SerializedProperty.gradientValue

描述

渐变属性的值。

另请参阅：propertyType、SerializedPropertyType.Gradient、Gradient。

using System;
using UnityEditor;
using UnityEngine;

[CreateAssetMenu]
public class SerializedPropertyGradientExample : ScriptableObject
{
    public Gradient m_Gradient;

    [Range(0, 1)]
    public float m_EvaluationTime;

    public SerializedPropertyGradientExample()
    {
        // Establish a default gradient
        var colorKeys = new GradientColorKey[]
        {
            new GradientColorKey() { color = Color.red, time = 0.0f },
            new GradientColorKey() { color = Color.green, time = 0.5f },
            new GradientColorKey() { color = Color.blue, time = 1.0f }
        };
        var alphaKeys = new GradientAlphaKey[]
        {
            new GradientAlphaKey() { alpha = 0.5f, time = 0.0f },
            new GradientAlphaKey() { alpha = 1.0f, time = 1.0f }
        };
        m_Gradient = new Gradient();
        m_Gradient.SetKeys(colorKeys, alphaKeys);
    }
}

// Override the default inspector behavior to add extra text line after the two properties
[CustomEditor(typeof(SerializedPropertyGradientExample))]
public class SerializedPropertyGradientExampleEditor : Editor
{
    public override void OnInspectorGUI()
    {
        DrawDefaultInspector();

        var gradient = serializedObject.FindProperty("m_Gradient").gradientValue;
        var evalPoint = serializedObject.FindProperty("m_EvaluationTime").floatValue;
        GUILayout.Label($"Gradiant at time {evalPoint}: {gradient.Evaluate(evalPoint)}");
    }
}