修改水

Packages/com.waveharmonic.crest/Editor/Scripts/MaterialDrawers.cs

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+// Crest Water System
+// Copyright © 2024 Wave Harmonic. All rights reserved.
+
+// Repository of custom material property drawers.
+// All drawers must be prefixed with Crest as they are global.
+
+using System.Collections.Generic;
+using UnityEditor;
+using UnityEngine;
+
+namespace WaveHarmonic.Crest.Editor
+{
+    static class MaterialAttributes
+    {
+        internal sealed class MaterialAttribute
+        {
+            public Vector2Int _IntegerRange;
+        }
+
+        internal static readonly Dictionary<string, MaterialAttribute> s_Common = new()
+        {
+
+        };
+
+        internal static readonly Dictionary<string, Dictionary<string, MaterialAttribute>> s_Grouped = new()
+        {
+            {
+                "Crest/Underwater", new()
+                {
+                    { "_Crest_DataSliceOffset", new() { _IntegerRange = new(0, Lod.k_MaximumSlices - 2) } },
+                }
+            },
+        };
+    }
+
+    sealed class CrestIntegerRangeDrawer : MaterialPropertyDrawer
+    {
+        // Adapted from:
+        // https://github.com/Unity-Technologies/UnityCsReference/blob/b44c4cc9e4ce3dfa0bab2fe4bf7efae880c5a175/Editor/Mono/Inspector/MaterialEditor.cs#L1277-L1298
+        public override void OnGUI(Rect position, MaterialProperty property, GUIContent label, MaterialEditor editor)
+        {
+            MaterialEditor.BeginProperty(position, property);
+
+            EditorGUI.BeginChangeCheck();
+
+            // For range properties we want to show the slider so we adjust label width to use default width (setting it to 0)
+            // See SetDefaultGUIWidths where we set: EditorGUIUtility.labelWidth = GUIClip.visibleRect.width - EditorGUIUtility.fieldWidth - 17;
+            var oldLabelWidth = EditorGUIUtility.labelWidth;
+            EditorGUIUtility.labelWidth = 0f;
+
+            var material = editor.target as Material;
+            var shader = material.shader;
+
+            var attribute = MaterialAttributes.s_Grouped.GetValueOrDefault(shader.name, null)?.GetValueOrDefault(property.name, null);
+            attribute ??= MaterialAttributes.s_Common[property.name];
+
+            var newValue = EditorGUI.IntSlider(position, label, property.intValue, attribute._IntegerRange.x, attribute._IntegerRange.y);
+
+            EditorGUIUtility.labelWidth = oldLabelWidth;
+
+            if (EditorGUI.EndChangeCheck())
+            {
+                property.intValue = newValue;
+            }
+
+            MaterialEditor.EndProperty();
+        }
+    }
+}