feat: added contains functions to GuiContainers

Author: Evan Comtesse

src/RayGUI.cs

@@ -9,7 +9,7 @@ namespace RayGUI_cs
     /// <summary>RayGUI instance of the library.</summary>
     public unsafe class RayGUI
     {
-        public const string VERSION = "2.0.4";
+        public const string VERSION = "2.0.4.1";
 
         internal const int MAX_TAG_LENGTH = 25;
         internal const int TICKBOX_SIZE = 16;

src/RayGUI_cs.csproj

@@ -5,7 +5,7 @@
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
     <AllowUnsafeBlocks>True</AllowUnsafeBlocks>
-    <Version>2.0.4</Version>
+    <Version>2.0.4.1</Version>
 	<PackageId>RayGUI-cs</PackageId>
 	<Author>FlamingRiot</Author>
 	<Company>FlamingRiot</Company>

src/code/components/GuiContainer.cs

@@ -47,6 +47,22 @@ public void ForEach(Action<Component> action)
             _components.Values.ToList().ForEach(action);
         }
 
+        /// <summary>Checks whether a component exists or not in the container.</summary>
+        /// <param name="key">Component to look for.</param>
+        /// <returns><see langword="true"/> if exists. <see langword="false"/> otherwise.</returns>
+        public bool ContainsComponent(Component component)
+        {
+            return _components.ContainsValue(component);
+        }
+
+        /// <summary>Checks whether a component's key exists or not in the container.</summary>
+        /// <param name="key">Key to look for.</param>
+        /// <returns><see langword="true"/> if exists. <see langword="false"/> otherwise.</returns>
+        public bool ContainsKey(string key)
+        {
+            return _components.ContainsKey(key);
+        }
+
         /// <summary>Sets the roundness for each component of the GUI.</summary>
         /// <param name="roundness">Roundness to set.</param>
         public void SetDefaultRoundness(float roundness)