First Commit

Assets/Attributes/DrawIf.cs

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+using UnityEngine;
+using System;
+
+namespace Golems.Attributes
+{
+    
+    /// <summary>
+    /// Draws the field/property ONLY if the compared property compared by the comparison type with the value of comparedValue returns true.
+    /// Based on: https://forum.unity.com/threads/draw-a-field-only-if-a-condition-is-met.448855/
+    /// </summary>
+    [AttributeUsage(AttributeTargets.Property | AttributeTargets.Field, AllowMultiple = true)]
+    public class DrawIfAttribute : PropertyAttribute
+    {
+        #region Fields
+ 
+        public string comparedPropertyName { get; private set; }
+        public object comparedValue { get; private set; }
+        public DisablingType disablingType { get; private set; }
+ 
+        /// <summary>
+        /// Types of comperisons.
+        /// </summary>
+        public enum DisablingType
+        {
+            ReadOnly = 2,
+            DontDraw = 3
+        }
+ 
+        #endregion
+ 
+        /// <summary>
+        /// Only draws the field only if a condition is met. Supports enum and bools.
+        /// </summary>
+        /// <param name="comparedPropertyName">The name of the property that is being compared (case sensitive).</param>
+        /// <param name="comparedValue">The value the property is being compared to.</param>
+        /// <param name="disablingType">The type of disabling that should happen if the condition is NOT met. Defaulted to DisablingType.DontDraw.</param>
+        public DrawIfAttribute(string comparedPropertyName, object comparedValue, DisablingType disablingType = DisablingType.DontDraw)
+        {
+            this.comparedPropertyName = comparedPropertyName;
+            this.comparedValue = comparedValue;
+            this.disablingType = disablingType;
+        }
+    }
+}