Mouse picking

GlitchyEditor/src/EditWindows/EntityHierarchyWindow.bf

@@ -23,8 +23,9 @@ namespace GlitchyEditor.EditWindows
 
 		public List<Entity> SelectedEntities => _selectedEntities;
 
-		public this(Scene scene)
+		public this(Editor editor, Scene scene)
 		{
+			_editor = editor;
 			SetContext(scene);
 		}
 
@@ -61,6 +62,23 @@ namespace GlitchyEditor.EditWindows
 				ImGui.EndPopup();
 			}
 
+			if (_editor.SceneViewportWindow.SelectionChanged)
+			{
+				if (Input.IsKeyReleased(.Control))
+				{
+					_selectedEntities.Clear();
+				}
+
+				var handle = _scene.[Friend]_ecsWorld.GetCurrentVersion(EcsEntity.[Friend]CreateEntityID(_editor.SceneViewportWindow.SelectedEntityId, 0));
+
+				if (handle case .Ok(let h))
+				{
+					Entity e = .(h, _scene);
+	
+					_selectedEntities.Add(e);
+				}
+			}
+
 			ShowEntityHierarchy();
 			
 			if ((ImGui.IsMouseDown(.Left) || ImGui.IsMouseDown(.Right)) && !ImGui.IsAnyItemHovered() && !ImGui.GetIO().KeyCtrl && ImGui.IsWindowHovered(.AllowWhenBlockedByPopup))
@@ -113,6 +131,8 @@ namespace GlitchyEditor.EditWindows
 			{
 				_scene.DestroyEntity(entity, true);
 			}
+
+			_selectedEntities.Clear();
 		}
 
 		private void ShowEntityHierarchyMenuBar()

GlitchyEditor/src/EditWindows/SceneViewportWindow.bf

@@ -5,6 +5,7 @@ using GlitchyEngine.Math;
 using GlitchyEngine;
 using GlitchyEngine.World;
 using ImGuizmo;
+using GlitchyEngine.Events;
 
 namespace GlitchyEditor.EditWindows
 {
@@ -15,6 +16,7 @@ namespace GlitchyEditor.EditWindows
 		private RenderTargetGroup _renderTarget ~ _?.ReleaseRef();
 
 		public Event<EventHandler<Vector2>> ViewportSizeChangedEvent ~ _.Dispose();
+		public Event<EventHandler<uint32>> EntityClickedEvent ~ _.Dispose();
 
 		public RenderTargetGroup RenderTarget
 		{
@@ -36,6 +38,9 @@ namespace GlitchyEditor.EditWindows
 		private ImGui.Vec2 oldViewportSize;
 		private bool viewPortChanged;
 
+		public uint32 SelectedEntityId;
+		public bool SelectionChanged;
+
 		protected override void InternalShow()
 		{
 			ImGui.PushStyleVar(.WindowPadding, ImGui.Vec2(1, 1));
@@ -94,35 +99,35 @@ namespace GlitchyEditor.EditWindows
 			if(_renderTarget != null)
 			{
 				//ImGui.Image(_renderTarget.GetViewBinding(0), viewportSize);
-				ImGui.Image(_editor.CurrentCamera.RenderTarget.GetViewBinding(0), viewportSize);
+				//ImGui.Image(_editor.CurrentCamera.RenderTarget.GetViewBinding(0), viewportSize);
+				ImGui.Image(_editor.CurrentScene.[Friend]_compositeTarget.GetViewBinding(0), viewportSize);
 			}
 			
+
+			bool gizmoUsed = DrawImGuizmo(viewportSize);
+
 			Vector2 relativeMouse = (Vector2)ImGui.GetMousePos() - (Vector2)ImGui.GetItemRectMin();
 
 			int x = Renderer.[Friend]_gBuffer.Target.Width;
 			int y = Renderer.[Friend]_gBuffer.Target.Height;
 
-			if (Input.IsMouseButtonPressing(.LeftButton) && relativeMouse.X >= 0 && relativeMouse.Y >= 0 &&
+			if (!gizmoUsed && !_editor.CurrentCamera.[Friend]BindMouse && Input.IsMouseButtonPressing(.LeftButton) && relativeMouse.X >= 0 && relativeMouse.Y >= 0 &&
 				relativeMouse.X < viewportSize.x && relativeMouse.Y < viewportSize.y &&
 				relativeMouse.X < x && relativeMouse.Y < y)
 			{
 				uint32 id = uint32.MaxValue;
 
-				_editor.CurrentCamera.RenderTarget.GetData<uint32>(&id, 1, (.)relativeMouse.X, (.)relativeMouse.Y, 1, 1);
+				_editor.CurrentScene.[Friend]_compositeTarget.GetData<uint32>(&id, 1, (.)relativeMouse.X, (.)relativeMouse.Y, 1, 1);
 
-				//_renderTarget.GetData<uint32>(&pixel, 0, );
+				SelectionChanged = true;
+				SelectedEntityId = id;
 
-				Log.EngineLogger.Info($"{relativeMouse} || ID = {id}");
+				EntityClickedEvent(this, id);
-
+			}
-				if (id != uint32.MaxValue)
+			else
 			{
-					//_editor.CurrentScene.[Friend]_ecsWorld.GetCurrentVersion()
+				SelectionChanged = false;
 			}
-					//_editor.EntityHierarchyWindow.SelectEntityWithId(id, true);
-				
-			}
-
-			DrawImGuizmo(viewportSize);
 			
 			ImGui.End();
 
@@ -203,7 +208,7 @@ namespace GlitchyEditor.EditWindows
 			}
 		}
 
-		private void DrawImGuizmo(ImGui.Vec2 viewportSize)
+		private bool DrawImGuizmo(ImGui.Vec2 viewportSize)
 		{
 			ImGuizmo.SetOrthographic(false);
 			ImGuizmo.SetDrawlist();
@@ -219,7 +224,7 @@ namespace GlitchyEditor.EditWindows
 			var projection = _editor.CurrentCamera.Projection;
 
 			if(_editor.EntityHierarchyWindow.SelectedEntities.Count == 0)
-				return;
+				return false;
 
 			var entity = _editor.EntityHierarchyWindow.SelectedEntities.Back;
 
@@ -245,6 +250,8 @@ namespace GlitchyEditor.EditWindows
 				// (probably because scaling a rotated matrix results in a skewed matrix, but unity can do it, so should we)
 				transformCmp.LocalTransform = parentView * worldTransform;
 			}
+
+			return ImGuizmo.IsUsing();
 		}
 	}
 }

GlitchyEditor/src/Editor.bf

@@ -35,7 +35,7 @@ namespace GlitchyEditor
 		/// Creates a new editor for the given world
 		public this(Scene scene)
 		{
-			_entityHierarchyWindow = new EntityHierarchyWindow(_scene);
+			_entityHierarchyWindow = new EntityHierarchyWindow(this, _scene);
 			CurrentScene = scene;
 
 			_componentEditWindow = new ComponentEditWindow(_entityHierarchyWindow);

GlitchyEngine/src/Renderer/Renderer.bf

@@ -341,11 +341,12 @@ namespace GlitchyEngine.Renderer
 
 				_lights.Clear();
 
-				// Copy EntityIDs to camera target
+				// Copy EntityIDs to compositionTarget
-				_gBuffer.Target.CopyTo(_sceneConstants.CameraTarget, 1, Int2.Zero, Int2(_sceneConstants.CameraTarget.Width, _sceneConstants.CameraTarget.Height), Int2.Zero, 5);
+				_gBuffer.Target.CopyTo(_sceneConstants.CompositionTarget, 1, Int2.Zero, Int2(_sceneConstants.CameraTarget.Width, _sceneConstants.CameraTarget.Height), Int2.Zero, 5);
 
 				RenderCommand.SetBlendState(_gBufferBlend);
 
+				RenderCommand.UnbindRenderTargets();
 				RenderCommand.SetRenderTargetGroup(_sceneConstants.CompositionTarget, true);
 				RenderCommand.BindRenderTargets();
 

GlitchyEngine/src/World/EcsWorld.bf

@@ -161,10 +161,10 @@ namespace GlitchyEngine.World
 		}
 
 		/// Returns the entity with the same ID and the current version. Or null, if no such entity exists.
-		public EcsEntity? GetCurrentVersion(EcsEntity entity)
+		public Result<EcsEntity> GetCurrentVersion(EcsEntity entity)
 		{
 			if(entity.Index > _entities.Count)
-				return null;
+				return .Err;
 			
 			var listEntity = ref _entities[entity.Index];
 			

GlitchyEngine/src/World/Scene.bf

@@ -13,6 +13,8 @@ namespace GlitchyEngine.World
 		
 		private Dictionary<Type, function void(Entity entity, Type componentType, void* component)> _onComponentAddedHandlers = new .() ~ delete _;
 
+		private RenderTargetGroup _compositeTarget ~ _.ReleaseRef();
+
 		public Entity ActiveCamera => {
 			Entity cameraEntity = .();
 
@@ -42,6 +44,13 @@ namespace GlitchyEngine.World
 
 				cameraComponent.Camera.SetViewportSize(e.Scene.ViewportWidth, e.Scene.ViewportHeight);
 			});
+
+			RenderTargetGroupDescription desc = .(100, 100,
+				TargetDescription[](
+				RenderTargetFormat.R16G16B16A16_Float,
+				.(RenderTargetFormat.R32_UInt) {ClearColor = .UInt(uint32.MaxValue)}),
+				RenderTargetFormat.D24_UNorm_S8_UInt);
+			_compositeTarget = new RenderTargetGroup(desc);
 		}
 
 		public ~this()
@@ -50,6 +59,9 @@ namespace GlitchyEngine.World
 
 		public void UpdateRuntime(GameTime gameTime, RenderTargetGroup finalTarget)
 		{
+			// TODO: adapt changes from UpdateEditor!
+			Runtime.NotImplemented();
+			/*
 			Debug.Profiler.ProfileRendererFunction!();
 			
 			TransformSystem.Update(_ecsWorld);
@@ -109,6 +121,7 @@ namespace GlitchyEngine.World
 
 				renderTarget?.ReleaseRef();
 			}
+			*/
 		}
 
 		public void UpdateEditor(GameTime gameTime, EditorCamera camera, RenderTargetGroup viewportTarget, delegate void() DebugDraw3D, delegate void() DrawDebug2D)
@@ -120,7 +133,7 @@ namespace GlitchyEngine.World
 			TransformSystem.Update(_ecsWorld);
 
 			// 3D render
-			Renderer.BeginScene(camera, viewportTarget);
+			Renderer.BeginScene(camera, _compositeTarget);
 
 			for (var (entity, transform, mesh, meshRenderer) in _ecsWorld.Enumerate<TransformComponent, MeshComponent, MeshRendererComponent>())
 			{
@@ -136,9 +149,10 @@ namespace GlitchyEngine.World
 
 			Renderer.EndScene();
 
-			// TODO: alphablending
+			// TODO: alphablending (handle in Renderer2D)
+			// TODO: 2D-Postprocessing requires rendering into separate target instead of directly into compositeTarget
 
-			RenderCommand.SetRenderTargetGroup(camera.RenderTarget);
+			RenderCommand.SetRenderTargetGroup(_compositeTarget);
 			RenderCommand.BindRenderTargets();
 
 			// Sprite renderer
@@ -157,7 +171,7 @@ namespace GlitchyEngine.World
 
 			Renderer2D.EndScene();
 
-			// TODO: cameraTarget into viewportTarget (gamma correction!)
+			// TODO: compositeTarget into viewportTarget (gamma correction!)
 
 			viewportTarget.ReleaseRef();
 		}
@@ -206,6 +220,8 @@ namespace GlitchyEngine.World
 					cameraComponent.Camera.SetViewportSize(width, height);
 				}
 			}
+
+			_compositeTarget.Resize(ViewportWidth, ViewportHeight);
 		}
 
 		private void OnComponentAdded(Entity entity, Type componentType, void* component)