Scripting: FindEntityWithName and get script instance

+ Some C# UUID stuff
+ Added some Mono functions
+ ScriptEngine:
  + ID -> ScriptInstance map in ScriptEngine
  + GetManagedInstance

+ Fixed Scene not visible after loading a new scene
  + Renamed OnViewportResize to SetViewportSize for Scene and SceneRenderer

GlitchyEditor/SandboxProject/Assets/Scripts/Camera.cs

@@ -0,0 +1,46 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using GlitchyEngine;
+using GlitchyEngine.Math;
+
+namespace Sandbox;
+public class Camera : Entity
+{
+    public float DistanceFromPlayer = 5.0f;
+
+    public float DontFollowRadius = 3.0f;
+
+    void OnUpdate(float deltaTime)
+    {
+        Entity player = FindEntityWithName("Player");
+
+        if (player != null)
+        {
+            Vector2 playerPosition = new Vector2(player.Transform.Translation.X, player.Transform.Translation.Y);
+
+            Vector2 cameraPosition = new Vector2(Transform.Translation.X, Transform.Translation.Y);
+
+            Vector2 distanceVector = playerPosition - cameraPosition;
+
+            float distance = distanceVector.Length();
+
+            Vector2 neededMovement = Vector2.Zero;
+
+            if (distance > DontFollowRadius)
+            {
+                neededMovement = distanceVector - (distanceVector / distance) * DontFollowRadius;
+            }
+
+            Transform.Translation = new Vector3(cameraPosition + neededMovement, DistanceFromPlayer);
+
+            //Transform.Translation = new Vector3(player.Transform.Translation.X, player.Transform.Translation.Y, DistanceFromPlayer);
+        }
+        else
+        {
+            Log.Error("Player not found!");
+        }
+    }
+}

GlitchyEditor/SandboxProject/Assets/Scripts/MyTestEntity.cs

@@ -54,6 +54,8 @@ class MyTestEntity : Entity
     
     public MyStruct AStruct;
 
+    public Camera Camera;
+
     /// <summary>
     /// Called after the script component was created. (The entity might not be fully created yet)
     /// </summary>
@@ -61,7 +63,16 @@ class MyTestEntity : Entity
     {
         Log.Info($"Create! {UUID}");
         
+        Log.Info($"Jump Force: {JumpForce}");
+
         _rigidBody ??= GetComponent<RigidBody2D>() ?? AddComponent<RigidBody2D>();
+
+        Camera = FindEntityWithName("Camera").As<Camera>();
+
+        if (Camera == null)
+        {
+            Log.Error("Camera not found.");
+        }
     }
     
     /// <summary>
@@ -82,6 +93,12 @@ class MyTestEntity : Entity
             force.X += MoveForce * deltaTime;
         }
 
+        if (Input.IsKeyPressed(Key.Q))
+            Camera.DistanceFromPlayer -= deltaTime;
+
+        if (Input.IsKeyPressed(Key.E))
+            Camera.DistanceFromPlayer += deltaTime;
+
         if (Input.IsKeyPressing(Key.Space))
         {
             force.Y += JumpForce;

GlitchyEditor/SandboxProject/Assets/Scripts/Sandbox.csproj

@@ -43,6 +43,7 @@
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="Camera.cs" />
     <Compile Include="MyTestEntity.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>

GlitchyEditor/content/Scenes/physics2D.scene

@@ -23,7 +23,7 @@
 			},
 			TransformComponent = {
 				Position = {
-					X = 0,
+					X = -0.72789681,
 					Y = 2,
 					Z = 0
 				},
@@ -71,8 +71,8 @@
 			SpriteRendererComponent = {
 				Color = {
 					R = 1,
-					G = 0.941886365,
-					B = 0.401484847,
+					G = 0.941886961,
+					B = 0.401484549,
 					A = 1
 				},
 				Sprite = "",
@@ -162,14 +162,20 @@
 				OrthographicHeight = 10,
 				OrthographicNearPlane = 0,
 				OrthographicFarPlane = 10,
-				AspectRatio = 3.22169805,
+				AspectRatio = 0.884925187,
 				FixedAspectRatio = false
-			}
+			},
+			ScriptComponent = {
+				ScriptClass = "Sandbox.Camera",
+				Fields = [
+					DistanceFromPlayer = (Float)-7,
+					DontFollowRadius = (Float)3
+				]			}
 		},
 		{
 			Id = 15710354273720487680,
 			NameComponent = {
-				Name = "Circle"
+				Name = "Player"
 			},
 			CircleRendererComponent = {
 				Color = {
@@ -189,8 +195,8 @@
 			},
 			TransformComponent = {
 				Position = {
-					X = -0.12120308,
-					Y = 0.660160363,
+					X = -0.121203184,
+					Y = 0.660160959,
 					Z = 0
 				},
 				Rotation = {
@@ -224,7 +230,42 @@
 				Friction = 0.5,
 				Restitution = 0,
 				RestitutionThreshold = 0.5
-			}
+			},
+			ScriptComponent = {
+				ScriptClass = "Sandbox.MyTestEntity",
+				Fields = [
+					Bo = (Bool)false,
+					By = (Byte)0,
+					Us = (UShort)57,
+					Ui = (UInt)54,
+					Ul = (ULong)53,
+					Sb = (SByte)-128,
+					Sh = (Short)95,
+					In = (Int)-149,
+					Lo = (Long)82,
+					Fl = (Float)-98.122963,
+					Do = (Double)118,
+					V2 = (float2){
+						X = 11,
+						Y = 12
+					},
+					V3 = (float3){
+						X = 13,
+						Y = 14,
+						Z = 15
+					},
+					V4 = (float4){
+						X = 14,
+						Y = 17,
+						Z = 18,
+						W = 19
+					},
+					TheEntity = (Entity)0,
+					JumpForce = (Float)200,
+					MoveForce = (Float)148,
+					MyNumber = (Int)22,
+					MyDouble = (Double)23
+				]			}
 		},
 		{
 			Id = 935640822766280888,
@@ -249,9 +290,9 @@
 					Z = 1
 				},
 				EditorEulerRotation = {
-					X = 1.0908947,
+					X = 1.09089541,
 					Y = -0.340793997,
-					Z = 0.160857916
+					Z = 0.160857871
 				}
 			},
 			LightComponent = {
@@ -260,7 +301,7 @@
 				Color = {
 					R = 0.985467017,
 					G = 1,
-					B = 0.569978654
+					B = 0.569978058
 				}
 			}
 		},
@@ -273,7 +314,7 @@
 				Position = {
 					X = 0,
 					Y = 0,
-					Z = -1.47202551
+					Z = 2.56930423
 				},
 				Rotation = {
 					X = 0,
@@ -298,6 +339,192 @@
 			MeshRendererComponent = {
 				Material = "Textures/TestMaterial.mat"
 			}
+		},
+		{
+			Id = 2241063100006479259,
+			NameComponent = {
+				Name = "Floor 2"
+			},
+			SpriteRendererComponent = {
+				Color = {
+					R = 0.425658971,
+					G = 0.855207562,
+					B = 0.0558161102,
+					A = 1
+				},
+				Sprite = "",
+				UvTransform = {
+					X = 0,
+					Y = 0,
+					Z = 1,
+					W = 1
+				}
+			},
+			TransformComponent = {
+				Position = {
+					X = 6.74610233,
+					Y = -2.03225899,
+					Z = 0
+				},
+				Rotation = {
+					X = 0,
+					Y = 0,
+					Z = -0.331792623,
+					W = 0.943352342
+				},
+				Scale = {
+					X = 5.29557419,
+					Y = 1,
+					Z = 1
+				},
+				EditorEulerRotation = {
+					X = 0,
+					Y = 0,
+					Z = -0.676406503
+				}
+			},
+			Rigidbody2D = {
+				BodyType = .Static,
+				FixedRotation = false
+			},
+			BoxCollider2D = {
+				Offset = {
+					X = 0,
+					Y = 0
+				},
+				Size = {
+					X = 0.5,
+					Y = 0.5
+				},
+				Density = 1,
+				Friction = 0.5,
+				Restitution = 0,
+				RestitutionThreshold = 0.5
+			}
+		},
+		{
+			Id = 5126705881069187728,
+			NameComponent = {
+				Name = "Floor 3"
+			},
+			SpriteRendererComponent = {
+				Color = {
+					R = 0.666116953,
+					G = 0.0600316115,
+					B = 1,
+					A = 1
+				},
+				Sprite = "",
+				UvTransform = {
+					X = 0,
+					Y = 0,
+					Z = 1,
+					W = 1
+				}
+			},
+			TransformComponent = {
+				Position = {
+					X = 15.2321301,
+					Y = -1.98709249,
+					Z = 0
+				},
+				Rotation = {
+					X = 0,
+					Y = 0,
+					Z = 0.134986058,
+					W = 0.990847468
+				},
+				Scale = {
+					X = 13.9764566,
+					Y = 1,
+					Z = 1
+				},
+				EditorEulerRotation = {
+					X = 0,
+					Y = 0,
+					Z = 0.270798802
+				}
+			},
+			Rigidbody2D = {
+				BodyType = .Static,
+				FixedRotation = false
+			},
+			BoxCollider2D = {
+				Offset = {
+					X = 0,
+					Y = 0
+				},
+				Size = {
+					X = 0.5,
+					Y = 0.5
+				},
+				Density = 1,
+				Friction = 0.5,
+				Restitution = 0.800000012,
+				RestitutionThreshold = 0.5
+			}
+		},
+		{
+			Id = 6861260438693901700,
+			NameComponent = {
+				Name = "Floor 4"
+			},
+			SpriteRendererComponent = {
+				Color = {
+					R = 0.176544324,
+					G = 0.666713238,
+					B = 0.687030852,
+					A = 1
+				},
+				Sprite = "",
+				UvTransform = {
+					X = 0,
+					Y = 0,
+					Z = 1,
+					W = 1
+				}
+			},
+			TransformComponent = {
+				Position = {
+					X = -6.27842855,
+					Y = 2.62550211,
+					Z = 0
+				},
+				Rotation = {
+					X = 0,
+					Y = 0,
+					Z = 0.187087834,
+					W = 0.982343197
+				},
+				Scale = {
+					X = 0.999999523,
+					Y = 6.49634314,
+					Z = 1
+				},
+				EditorEulerRotation = {
+					X = 0,
+					Y = 0,
+					Z = 0.376393586
+				}
+			},
+			Rigidbody2D = {
+				BodyType = .Static,
+				FixedRotation = false
+			},
+			BoxCollider2D = {
+				Offset = {
+					X = 0,
+					Y = 0
+				},
+				Size = {
+					X = 0.5,
+					Y = 0.5
+				},
+				Density = 1,
+				Friction = 0.5,
+				Restitution = 0.899999976,
+				RestitutionThreshold = 0.5
+			}
 		}
 	]
 }

GlitchyEditor/src/EditorLayer.bf

@@ -209,27 +209,36 @@ namespace GlitchyEditor
 			RenderCommand.SetBlendState(_alphaBlendState);
 			RenderCommand.SetDepthStencilState(_depthStencilState);
 
+			if (_editor.GameViewportWindow.Visible)
+			{
+				_gameSceneRenderer.Scene = _activeScene;
+
+				_activeScene.SetViewportSize((uint32)_editor.GameViewportWindow.ViewportSize.X, (uint32)_editor.GameViewportWindow.ViewportSize.Y);
+				_gameSceneRenderer.SetViewportSize((uint32)_editor.GameViewportWindow.ViewportSize.X, (uint32)_editor.GameViewportWindow.ViewportSize.Y);
+
+				RenderCommand.Clear(_gameViewportTarget, .Color | .Depth, .(0.2f, 0.2f, 0.2f), 1.0f, 0);
+				_gameSceneRenderer.RenderRuntime(gameTime, _gameViewportTarget);
+			}
+
+			RenderCommand.SetBlendState(_alphaBlendState);
+			RenderCommand.SetDepthStencilState(_depthStencilState);
+			
 			if (_editor.SceneViewportWindow.Visible)
 			{
 				_camera.Update(gameTime);
 
 				_editorSceneRenderer.Scene = _activeScene;
 
+				// Only use aspect ratio of editor-window, if game is not being rendered
+				if (!_editor.GameViewportWindow.Visible)
+					_activeScene.SetViewportSize((uint32)_editor.SceneViewportWindow.ViewportSize.X, (uint32)_editor.SceneViewportWindow.ViewportSize.Y);
+				
+				_editorSceneRenderer.SetViewportSize((uint32)_editor.SceneViewportWindow.ViewportSize.X, (uint32)_editor.SceneViewportWindow.ViewportSize.Y);
+
 				RenderCommand.Clear(_editorViewportTarget, .Color | .Depth, .(0.2f, 0.2f, 0.2f), 1.0f, 0);
 				_editorSceneRenderer.RenderEditor(gameTime, _camera, _editorViewportTarget, scope => DebugDraw3D, scope => DebugDraw2D);
 			}
 
-			RenderCommand.SetBlendState(_alphaBlendState);
-			RenderCommand.SetDepthStencilState(_depthStencilState);
-
-			if (_editor.GameViewportWindow.Visible)
-			{
-				_gameSceneRenderer.Scene = _activeScene;
-
-				RenderCommand.Clear(_gameViewportTarget, .Color | .Depth, .(0.2f, 0.2f, 0.2f), 1.0f, 0);
-				_gameSceneRenderer.RenderRuntime(gameTime, _gameViewportTarget);
-			}
-
 			RenderCommand.UnbindRenderTargets();
 			RenderCommand.SetRenderTarget(null, 0, true);
 			RenderCommand.BindRenderTargets();
@@ -742,7 +751,7 @@ namespace GlitchyEditor
 
 			_camera.OnViewportResize(sizeX, sizeY);
 
-			_editorSceneRenderer.OnViewportResize(sizeX, sizeY);
+			_activeScene.SetViewportSize(sizeX, sizeY);
 		}
 		
 		private void GameViewportSizeChanged(Object sender, float2 viewportSize)
@@ -755,9 +764,7 @@ namespace GlitchyEditor
 
 			_gameViewportTarget.Resize(sizeX, sizeY);
 
-			_activeScene.OnViewportResize(sizeX, sizeY);
-
-			_gameSceneRenderer.OnViewportResize(sizeX, sizeY);
+			_activeScene.SetViewportSize(sizeX, sizeY);
 		}
 
 		private bool OnKeyPressed(KeyPressedEvent e)

GlitchyEngine/src/Scripting/ScriptClass.bf

@@ -90,6 +90,11 @@ class SharpClass : SharpType
 		ExtractFields();
 	}
 
+	internal bool IsType(MonoType* type)
+	{
+		return Mono.mono_class_get_type(_monoClass) == type;
+	}
+
 	private void ExtractFields()
 	{
 		//_monoFields = new List<MonoClassField*>();´

GlitchyEngine/src/Scripting/ScriptEngine.bf

@@ -151,13 +151,13 @@ static class ScriptEngine
 	
 	private static Dictionary<StringView, ScriptClass> _entityScripts = new .() ~ DeleteDictionaryAndReleaseValues!(_);
 	
-	/*private static Dictionary<UUID, ScriptInstance> _entityScriptInstances = new .() ~ {
+	private static Dictionary<UUID, ScriptInstance> _entityScriptInstances = new .() ~ {
 		for (var entry in _)
 		{
 			entry.value?.ReleaseRef();
 		}
 		delete _;
-	};*/
+	}
 	
 	public static Dictionary<StringView, ScriptClass> EntityClasses => _entityScripts;
 
@@ -197,18 +197,18 @@ static class ScriptEngine
 
 	public static void OnRuntimeStop()
 	{
-		/*for (var entry in _entityScriptInstances)
+		for (var entry in _entityScriptInstances)
 		{
 			entry.value.ReleaseRef();
 		}
-		_entityScriptInstances.Clear();*/
+		_entityScriptInstances.Clear();
 
 		SetContext(null);
 	}
 
 	public static void InitializeInstance(Entity entity, ScriptComponent* script)
 	{
-		//_entityScriptInstances[entity.UUID] = script.Instance..AddRef();
+		_entityScriptInstances[entity.UUID] = script.Instance..AddRef();
 
 		script.Instance.Instantiate(entity.UUID);
 
@@ -403,7 +403,13 @@ static class ScriptEngine
 		return _entityFields[uuid];
 	}
 
+	public static MonoObject* GetManagedInstance(UUID entityId)
+	{
+		if (_entityScriptInstances.TryGetValue(entityId, let scriptInstance))
+			return scriptInstance.MonoInstance;
 		
+		return null;
+	}
 
 
 

GlitchyEngine/src/Scripting/ScriptGlue.bf

@@ -11,6 +11,8 @@ using Box2D;
 
 namespace GlitchyEngine.Scripting;
 
+using internal GlitchyEngine.Scripting;
+
 static class ScriptGlue
 {
 	private static Dictionary<MonoType*, function void(Entity entityId)> s_AddComponentMethods = new .() ~ delete _;
@@ -176,11 +178,29 @@ static class ScriptGlue
 		else
 			Log.EngineLogger.AssertDebug(false, "No managed component with the given type registered.");
 	}
-	/*[RegisterCall("Input::IsMouseButtonReleasing")]
-	static void Destroy()
+	
+	[RegisterCall("ScriptGlue::Entity_FindEntityWithName")]
+	static void Entity_FindEntityWithName(MonoString* monoName, UUID* outUuid)
 	{
-		// TODO:
-	}*/
+		*outUuid = UUID(0);
+
+		char8* entityName = Mono.mono_string_to_utf8(monoName);
+
+		StringView nameString = StringView(entityName);
+
+		Result<Entity> entityResult = ScriptEngine.Context.GetEntityByName(nameString);
+
+		Mono.mono_free(entityName);
+
+		if (entityResult case .Ok(let entity))
+			*outUuid = entity.UUID;
+	}
+
+	[RegisterCall("ScriptGlue::Entity_GetScriptInstance")]
+	static MonoObject* Entity_GetScriptInstance(UUID entityId)
+	{
+		return ScriptEngine.GetManagedInstance(entityId);
+	}
 
 #endregion
 

GlitchyEngine/src/Scripting/ScriptInstance.bf

@@ -37,6 +37,8 @@ class ScriptInstance : RefCounter
 		_scriptClass?.ReleaseRef();
 	}
 
+	internal MonoObject* MonoInstance => _instance;
+
 	public void Instantiate(UUID uuid)
 	{
 		_instance = _scriptClass.CreateInstance(uuid);

GlitchyEngine/src/World/Scene.bf

@@ -93,6 +93,7 @@ namespace GlitchyEngine.World
 				Entity targetEntity = target.GetEntityByID(sourceEntity.UUID);
 				ScriptComponent* targetComponent = targetEntity.AddComponent<ScriptComponent>();
 				
+				targetComponent.ScriptClass = sourceComponent.ScriptClass;
 				targetComponent.Instance = new ScriptInstance(sourceComponent.ScriptClass);
 				targetComponent.Instance..ReleaseRef();
 
@@ -116,7 +117,7 @@ namespace GlitchyEngine.World
 				}
 			}
 			
-			target.OnViewportResize(_viewportWidth, _viewportHeight);
+			//target.SetViewportSize(_viewportWidth, _viewportHeight);
 		}
 
 		private static void CopyComponents<TComponent>(Scene source, Scene target) where TComponent : struct, new
@@ -376,9 +377,23 @@ namespace GlitchyEngine.World
 			return .Err;
 		}
 
-		/// Sets the size of the viewport into which the scene will be rendered.
-		public void OnViewportResize(uint32 width, uint32 height)
+		public Result<Entity> GetEntityByName(StringView name)
 		{
+			for (let (ecsEntity, nameComponent) in GetEntities<NameComponent>())
+			{
+				if (nameComponent.Name == name)
+					return .Ok(Entity(ecsEntity, this));
+			}
+
+			return .Err;
+		}
+
+		/// Sets the size of the viewport into which the scene will be rendered.
+		public void SetViewportSize(uint32 width, uint32 height)
+		{
+			if (_viewportWidth == width && _viewportHeight == height)
+				return;
+
 			_viewportWidth = width;
 			_viewportHeight = height;
 

GlitchyEngine/src/World/SceneRenderer.bf

@@ -45,8 +45,11 @@ class SceneRenderer
 	}
 
 	/// Sets the size of the viewport into which the scene will be rendered.
-	public void OnViewportResize(uint32 width, uint32 height)
+	public void SetViewportSize(uint32 width, uint32 height)
 	{
+		if (_viewportWidth == width && _viewportHeight == height)
+			return;
+
 		_viewportWidth = width;
 		_viewportHeight = height;
 

GlitchyEngineHelper/src/Mono/Mono.bf

@@ -80,9 +80,15 @@ static class Mono
 	public static extern MonoClass* mono_class_from_name(MonoImage* image, char8* name_space,
 		char8* name);
 
+	[LinkName(.C)]
+	public static extern MonoClass* mono_class_from_mono_type(MonoType* type);
+
 	[LinkName(.C)]
 	public static extern char8* mono_class_get_name(MonoClass* monoClass);
 	
+	[LinkName(.C)]
+	public static extern MonoType* mono_class_get_type(MonoClass* monoClass);
+
 	[LinkName(.C)]
 	public static extern char8* mono_class_get_namespace(MonoClass* monoClass);
 	
@@ -131,6 +137,9 @@ static class Mono
 	[LinkName(.C)]
 	public static extern char8* mono_string_to_utf8(MonoString *s);
 	
+	[LinkName(.C)]
+	public static extern char8* mono_string_to_utf8_checked(MonoString *s, MonoError* error);
+	
 	[LinkName(.C)]
 	public static extern void mono_free(void* ptr);
 	
@@ -188,6 +197,17 @@ static class Mono
 	
 	[LinkName(.C)]
 	public static extern MonoClass* mono_type_get_class(MonoType* type);
+
+	/// MonoError
+
+	[LinkName(.C)]
+	public static extern void mono_error_cleanup(MonoError* error);
+
+	[LinkName(.C)]
+	public static extern mono_bool mono_error_ok(MonoError* error);
+	
+	[LinkName(.C)]
+	public static extern char8* mono_error_get_message(MonoError* error);
 }
 
 struct MonoDomain;
@@ -212,6 +232,12 @@ struct MonoClassField;
 
 struct MonoType;
 
+struct MonoError
+{
+	private uint32 bla;
+	private void*[12] bla2;
+}
+
 struct MonoReflectionType;
 
 struct MonoCustomAttrInfo;

ScriptCore/Core/UUID.cs

@@ -3,4 +3,20 @@ namespace GlitchyEngine.Core;
 public struct UUID
 {
     private ulong _uuid;
+
+    public UUID(ulong uuid)
+    {
+        _uuid = uuid;
+    }
+
+    public static UUID Zero = new UUID(0);
+
+    public static bool operator ==(UUID left, UUID right) => left._uuid == right._uuid;
+
+    public static bool operator !=(UUID left, UUID right) => left._uuid != right._uuid;
+
+    public override string ToString()
+    {
+        return _uuid.ToString();
+    }
 }

ScriptCore/Entity.cs

@@ -1,5 +1,7 @@
 using System;
+using System.Diagnostics;
 using System.Runtime.CompilerServices;
+using System.Xml.Linq;
 using GlitchyEngine.Core;
 using GlitchyEngine.Math;
 
@@ -11,22 +13,22 @@ internal struct EntityHandle
     public uint Index;
 }
 
-public abstract class Entity : EngineObject
+public class Entity : EngineObject
 {
     //private UUID _uuid;
 
     //public UUID UUID => _uuid;
 
-    ///// <summary>
-    ///// Empty constructor not used. Do NOT USE!
-    ///// </summary>
-    //protected Entity()
-    //{}
+    /// <summary>
+    /// Empty constructor not used. Do NOT USE!
+    /// </summary>
+    protected Entity()
+    { }
 
-    //internal Entity(UUID uuid)
-    //{
-    //    _uuid = uuid;
-    //}
+    private Entity(UUID uuid)
+    {
+        _uuid = uuid;
+    }
 
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public bool HasComponent<T>() => HasComponent(typeof(T));
@@ -41,8 +43,6 @@ public abstract class Entity : EngineObject
     /// <returns>The component or null, if the entity doesn't have a component of the specified type.</returns>
     public T GetComponent<T>() where T : Component, new()
     {
-        Log.Info("Trying to get component");
-
         if (HasComponent<T>())
         {
             return new T
@@ -129,10 +129,39 @@ public abstract class Entity : EngineObject
 
     public Transform Transform => GetComponent<Transform>();
 
-    public Vector3 Translation
+    //public Vector3 Translation
+    //{
+    //    get => Transform.Translation;
+    //    set => Transform.Translation = value;
+    //}
+
+    /// <summary>
+    /// Returns the first entity with the given name.
+    /// </summary>
+    /// <param name="name">The name of the entity.</param>
+    /// <returns>The first entity with the given name, or null.</returns>
+    public static Entity FindEntityWithName(string name)
     {
-        get => Transform.Translation;
-        set => Transform.Translation = value;
+        ScriptGlue.Entity_FindEntityWithName(name, out UUID entityId);
+
+        Log.Error($"Found EntityID {entityId}");
+
+        if (entityId == UUID.Zero)
+            return null;
+
+        return new Entity(entityId);
+    }
+
+    /// <summary>
+    /// Returns the script of the given type, or null, if the entity has no script of the given type.
+    /// </summary>
+    /// <typeparam name="T">The type of the script.</typeparam>
+    /// <returns>The script instance or null.</returns>
+    public T As<T>() where T : Entity
+    {
+        object scriptInstance = ScriptGlue.Entity_GetScriptInstance(_uuid);
+
+        return scriptInstance as T;
     }
 
     // Will be executed once after the entity as be created.

ScriptCore/Math/Vector2.cs

@@ -100,6 +100,11 @@ public struct Vector2
         return !(a == b);
     }
 
+    public float Length()
+    {
+        return (float)System.Math.Sqrt(X * X + Y * Y);
+    }
+
     public override int GetHashCode()
     {
         unchecked

ScriptCore/ScriptGlue.cs

@@ -21,6 +21,12 @@ internal static class ScriptGlue
     [MethodImpl(MethodImplOptions.InternalCall)]
     internal static extern void Entity_RemoveComponent(UUID entityId, Type componentType);
     
+    [MethodImpl(MethodImplOptions.InternalCall)]
+    internal static extern void Entity_FindEntityWithName(string name, out UUID uuid);
+    
+    [MethodImpl(MethodImplOptions.InternalCall)]
+    internal static extern object Entity_GetScriptInstance(UUID entityId);
+    
 #endregion Entity
 
 #region TransformComponent