Fix default values getting changed and add test

TechbloxModdingAPI/Blocks/BlockTests.cs

@@ -135,6 +135,25 @@ namespace TechbloxModdingAPI.Blocks
 	        Assert.Pass("Setting all possible properties of all registered API block types succeeded.");
         }
 
+        [APITestCase(TestType.EditMode)]
+        public static IEnumerator<TaskContract> TestDefaultValue()
+        {
+	        for (int i = 0; i < 2; i++)
+	        { //Tests shared defaults
+		        var block = Block.PlaceNew(BlockIDs.Cube, 1);
+		        while (!block.Exists)
+			        yield return Yield.It;
+		        block.Remove();
+		        while (block.Exists)
+			        yield return Yield.It;
+		        if(!Assert.Equal(block.Position, default,
+			        $"Block position default value {block.Position} is incorrect, should be 0.",
+			        $"Block position default value {block.Position} matches default."))
+			        yield break;
+		        block.Position = 4;
+	        }
+        }
+
         [APITestCase(TestType.EditMode)]
         public static void TestDampedSpring()
         {

TechbloxModdingAPI/Tests/TechbloxModdingAPIPluginTest.cs

@@ -1,11 +1,8 @@
 using System;
 using System.Collections.Generic;
 using System.Diagnostics;
-using System.Linq;
 using System.Reflection;
 using System.Text;
-using System.Text.RegularExpressions;
-using DataLoader;
 using TechbloxModdingAPI.App;
 using HarmonyLib;
 using IllusionInjector;
@@ -14,12 +11,13 @@ using RobocraftX.FrontEnd;
 using Unity.Mathematics;
 using UnityEngine;
 using RobocraftX.Common.Input;
-using ServiceLayer;
+using Svelto.Tasks;
+using Svelto.Tasks.Lean;
 using TechbloxModdingAPI.Blocks;
 using TechbloxModdingAPI.Commands;
 using TechbloxModdingAPI.Input;
-using TechbloxModdingAPI.Interface.IMGUI;
 using TechbloxModdingAPI.Players;
+using TechbloxModdingAPI.Tasks;
 using TechbloxModdingAPI.Utility;
 
 namespace TechbloxModdingAPI.Tests
@@ -288,6 +286,32 @@ namespace TechbloxModdingAPI.Tests
 	            {
 		            Game.CurrentGame().EnableScreenshotTaker();
 	            }).Build();
+
+            CommandBuilder.Builder("testPositionDefault", "Tests the Block.Position property's default value.")
+	            .Action(() =>
+	            {
+		            IEnumerator<TaskContract> Loop()
+		            {
+			            for (int i = 0; i < 2; i++)
+			            {
+				            Console.WriteLine("A");
+				            var block = Block.PlaceNew(BlockIDs.Cube, 1);
+				            Console.WriteLine("B");
+				            while (!block.Exists)
+					            yield return Yield.It;
+				            Console.WriteLine("C");
+				            block.Remove();
+				            Console.WriteLine("D");
+				            while (block.Exists)
+					            yield return Yield.It;
+				            Console.WriteLine("E - Pos: " + block.Position);
+				            block.Position = 4;
+				            Console.WriteLine("F - Pos: " + block.Position);
+			            }
+		            }
+
+		            Loop().RunOn(Scheduler.leanRunner);
+	            }).Build();
 #if TEST
 			TestRoot.RunTests();
 #endif

TechbloxModdingAPI/Utility/OptionalRef.cs

@@ -58,6 +58,7 @@ namespace TechbloxModdingAPI.Utility
         /// <returns>The value or the default value</returns>
         public ref T Get()
         {
+            CompRefCache.Default = default; //The default value can be changed by mods
             if (state == State.Empty) return ref CompRefCache.Default;
             if ((state & State.Initializer) != State.Empty) return ref initializer.GetOrCreate<T>();
             if ((state & State.Native) != State.Empty) return ref array[index];
@@ -73,7 +74,7 @@ namespace TechbloxModdingAPI.Utility
         /// <summary>
         /// Creates an instance of a struct T that can be referenced.
         /// </summary>
-        internal struct CompRefCache
+        private struct CompRefCache
         {
             public static T Default;
         }