17.09.2020

+ Generic Scene
+ Generic Camera
+ Generic Window
+ Contexts for drawing and updateing

+ very basic 2D-implermention

SMCode/SM.Base/Scene/GenericCamera.cs

@@ -0,0 +1,26 @@
+using OpenTK;
+
+namespace SM.Base.Scene
+{
+    public abstract class GenericCamera
+    {
+        public static Matrix4 OrthographicWorld { get; protected set; }
+        public static Matrix4 PerspectiveWorld { get; protected set; }
+        public static Vector3 UpVector { get; set; } = Vector3.UnitY;
+        
+        public Matrix4 ViewMatrix { get; protected set; }
+
+        public Matrix4 World => Orthographic ? OrthographicWorld : PerspectiveWorld;
+
+        internal Matrix4 CalculateViewMatrix()
+        {
+            ViewMatrix = ViewCalculation();
+            return ViewMatrix;
+        }
+
+        public abstract Matrix4 ViewCalculation();
+
+        public abstract bool Orthographic { get; }
+        public abstract void RecalculateWorld(float width, float height);
+    }
+}

SMCode/SM.Base/Scene/GenericScene.cs

@@ -0,0 +1,23 @@
+using System.Collections.Generic;
+using SM.Base.Contexts;
+
+namespace SM.Base.Scene
+{
+    public abstract class GenericScene<TCamera> : IShowCollection
+        where TCamera : GenericCamera
+    {
+
+        public List<IShowItem> Objects { get; } = new List<IShowItem>();
+        public TCamera Camera { get; set; }
+        public Dictionary<string, TCamera> Cameras = new Dictionary<string, TCamera>();
+
+        public void Draw(DrawContext context)
+        {
+            if (!context.ForceViewport && Camera != null) context.View = Camera.ViewMatrix;
+
+            for(int i = 0; i < Objects.Count; i++)
+                Objects[i].Draw(context);
+        }
+
+    }
+}

SMCode/SM.Base/Scene/IShowCollection.cs

@@ -0,0 +1,9 @@
+using System.Collections.Generic;
+
+namespace SM.Base.Scene
+{
+    public interface IShowCollection
+    {
+        List<IShowItem> Objects { get; }
+    }
+}

SMCode/SM.Base/Scene/IShowItem.cs

@@ -0,0 +1,10 @@
+using SM.Base.Contexts;
+
+namespace SM.Base.Scene
+{
+    public interface IShowItem
+    {
+        void Update(UpdateContext context);
+        void Draw(DrawContext context);
+    }
+}