26.09.2020

+ Added BoundingBoxes to Meshes
+ SM.Base.Objects.Mesh
+ Vertex Colors
+ ShowItem Collections + 2D Equlivant
+ Default Class to store Default Values
+ SM.OGL.GLSystem to store OpenGL specific system information

+ SM2D.DrawColor // not working yet
+ SM2D.DrawComplex to allow access to all features.
+ SM2D.DrawPolygon
+ Polygon system // for 2D only yet

~ Renamed SM.OGL.Mesh to SM.OGL.GenericMesh

SMCode/SM.Base/Defaults.cs

@@ -0,0 +1,14 @@
+using SM.Base.Objects;
+using SM.Base.Objects.Static;
+using SM.Base.Scene;
+using SM.Base.Shader;
+using SM.OGL.Mesh;
+
+namespace SM.Base
+{
+    public class Defaults
+    {
+        public static IShader DefaultShader;
+        public static Mesh DefaultMesh = Plate.Object;
+    }
+}

SMCode/SM.Base/Drawing/DrawingBasis.cs

@@ -1,5 +1,5 @@
 using SM.Base.Contexts;
-using SM.Base.StaticObjects;
+using SM.Base.Objects.Static;
 using SM.OGL.Mesh;
 
 namespace SM.Base.Scene
@@ -7,7 +7,7 @@ namespace SM.Base.Scene
     public abstract class DrawingBasis : IShowItem
     {
         protected Material _material = new Material();
-        protected Mesh _mesh = Plate.Object;
+        protected GenericMesh _mesh = Plate.Object;
         public virtual void Update(UpdateContext context)
         {
 

SMCode/SM.Base/Objects/Mesh.cs

@@ -0,0 +1,14 @@
+using SM.OGL.Mesh;
+
+namespace SM.Base.Objects
+{
+    public class Mesh : GenericMesh
+    {
+        public virtual VBO Color { get; }
+
+        protected Mesh()
+        {
+            AttribDataIndex.Add(3, Color);
+        }
+    }
+}

SMCode/SM.Base/Objects/Static/Plate.cs

@@ -1,7 +1,8 @@
-using OpenTK.Graphics.OpenGL4;
+using OpenTK;
+using OpenTK.Graphics.OpenGL4;
 using SM.OGL.Mesh;
 
-namespace SM.Base.StaticObjects
+namespace SM.Base.Objects.Static
 {
     public class Plate : Mesh
     {
@@ -13,8 +14,6 @@ namespace SM.Base.StaticObjects
             {-.5f, .5f, 0},
             {.5f, .5f, 0},
             {.5f, -.5f, 0},
-            {0,0,0},
-            {0,0,0},
         };
 
         public override VBO UVs { get; } = new VBO(pointerSize: 2)
@@ -23,12 +22,14 @@ namespace SM.Base.StaticObjects
             {0, 1},
             {1, 1},
             {1, 0},
-            {0, 0},
-            {0, 0},
         };
 
         public override PrimitiveType PrimitiveType { get; } = PrimitiveType.Quads;
 
+        public override BoundingBox BoundingBox { get; } = new BoundingBox(new Vector3(-.5f, -.5f, 0), new Vector3(.5f, .5f, 0));
+
+        //public override int[] Indices { get; set; } = new[] {0, 1, 2, 3};
+
         private Plate() {}
     }
 }

SMCode/SM.Base/SM.Base.csproj

@@ -21,6 +21,7 @@
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <LangVersion>latest</LangVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -29,6 +30,7 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <LangVersion>latest</LangVersion>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="OpenTK, Version=3.2.0.0, Culture=neutral, PublicKeyToken=bad199fe84eb3df4, processorArchitecture=MSIL">
@@ -45,14 +47,17 @@
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="Defaults.cs" />
     <Compile Include="Drawing\DrawingBasis.cs" />
     <Compile Include="Drawing\GenericTransformation.cs" />
     <Compile Include="Drawing\Instance.cs" />
     <Compile Include="Drawing\IShader.cs" />
+    <Compile Include="Objects\Mesh.cs" />
     <Compile Include="Scene\IShowCollection.cs" />
     <Compile Include="Scene\IShowItem.cs" />
     <Compile Include="Drawing\Material.cs" />
     <Compile Include="Scene\IBackgroundItem.cs" />
+    <Compile Include="Scene\GenericItemCollection.cs" />
     <Compile Include="Shader\InstanceShader.cs" />
     <Compile Include="Shader\Shaders.cs" />
     <Compile Include="Textures\Texture.cs" />
@@ -70,7 +75,7 @@
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="Scene\GenericCamera.cs" />
     <Compile Include="Scene\GenericScene.cs" />
-    <Compile Include="StaticObjects\Plate.cs" />
+    <Compile Include="Objects\Static\Plate.cs" />
   </ItemGroup>
   <ItemGroup>
     <None Include="OpenTK.dll.config" />

SMCode/SM.Base/Scene/GenericItemCollection.cs

@@ -0,0 +1,25 @@
+using System.Collections.Generic;
+using SM.Base.Contexts;
+
+namespace SM.Base.Scene
+{
+    public abstract class GenericItemCollection<TItem, TTransformation> : IShowItem, IShowCollection<TItem>
+        where TItem : IShowItem
+        where TTransformation : GenericTransformation, new()
+    {
+        public List<TItem> Objects { get; } = new List<TItem>();
+        public TTransformation Transform = new TTransformation();
+        public void Update(UpdateContext context)
+        {
+            throw new System.NotImplementedException();
+        }
+
+        public virtual void Draw(DrawContext context)
+        {
+            context.View = Transform.GetMatrix() * context.View;
+
+            for (int i = 0; i < Objects.Count; i++)
+                Objects[i].Draw(context);
+        }
+    }
+}

SMCode/SM.Base/Scene/GenericScene.cs

@@ -4,18 +4,20 @@ using SM.Base.Contexts;
 
 namespace SM.Base.Scene
 {
-    public abstract class GenericScene<TCamera> : IShowCollection
+    public abstract class GenericScene<TCamera, TItem> : IShowCollection<TItem>
         where TCamera : GenericCamera, new()
+        where TItem : IShowItem
     {
 
         protected IBackgroundItem _background;
-        public List<IShowItem> HUD { get; } = new List<IShowItem>();
-        public List<IShowItem> Objects { get; } = new List<IShowItem>();
+        public List<TItem> HUD { get; } = new List<TItem>();
+        public List<TItem> Objects { get; } = new List<TItem>();
         public TCamera Camera { get; set; }
         public TCamera BackgroundCamera { get; set; } = new TCamera();
+        public TCamera HUDCamera { get; set; } = new TCamera();
         public Dictionary<string, TCamera> Cameras = new Dictionary<string, TCamera>();
 
-        public void Draw(DrawContext context)
+        public virtual void Draw(DrawContext context)
         {
             if (!context.ForceViewport && Camera != null) context.View = Camera.ViewMatrix;
 
@@ -26,7 +28,7 @@ namespace SM.Base.Scene
             for(int i = 0; i < Objects.Count; i++)
                 Objects[i].Draw(context);
 
-            context.View = Matrix4.Identity;
+            context.View = HUDCamera.CalculateViewMatrix();
             for (int i = 0; i < HUD.Count; i++) 
                 HUD[i].Draw(context);
         }

SMCode/SM.Base/Scene/IShowCollection.cs

@@ -1,9 +1,12 @@
 using System.Collections.Generic;
+using SM.Base.Contexts;
 
 namespace SM.Base.Scene
 {
-    public interface IShowCollection
+    public interface IShowCollection<TItem> where TItem : IShowItem
     {
-        List<IShowItem> Objects { get; }
+        List<TItem> Objects { get; }
+
+        void Draw(DrawContext context);
     }
 }

SMCode/SM.Base/Shader/Files/default.frag

@@ -1,6 +1,7 @@
 #version 330
 
 in vec2 vTexture;
+in vec4 vColor;
 
 uniform vec4 Tint;
 uniform bool UseTexture;
@@ -9,6 +10,6 @@ uniform sampler2D Texture;
 layout(location = 0) out vec4 color;
 
 void main() {
-    color = Tint;
+    color = vColor * Tint;
     if (UseTexture) color *= texture(Texture, vTexture);
 }

SMCode/SM.Base/Shader/Files/default.vert

@@ -2,16 +2,22 @@
 #define maxInstances 32
 layout(location = 0) in vec3 aPos;
 layout(location = 1) in vec2 aTex;
+layout(location = 3) in vec4 aColor;
 
 uniform mat4 MVP;
+uniform bool HasVColor;
 uniform mat4 ModelMatrix[maxInstances];
 uniform vec2 TextureOffset[maxInstances];
 uniform vec2 TextureScale[maxInstances];
 
 out vec2 vTexture;
+out vec4 vColor;
 
 void main() {
     vTexture = aTex * TextureScale[gl_InstanceID] + TextureOffset[gl_InstanceID];
 
+    if (HasVColor) vColor = aColor;
+    else vColor = vec4(1);
+
     gl_Position = MVP * ModelMatrix[gl_InstanceID] * vec4(aPos, 1);
 }

SMCode/SM.Base/Shader/InstanceShader.cs

@@ -4,7 +4,6 @@ using OpenTK;
 using OpenTK.Graphics.OpenGL4;
 using SM.Base.Contexts;
 using SM.Base.Scene;
-using SM.Base.StaticObjects;
 using SM.OGL.Shaders;
 
 namespace SM.Base.Shader
@@ -24,6 +23,7 @@ namespace SM.Base.Shader
             GL.UseProgram(this);
 
             Uniforms["MVP"].SetMatrix4(context.View * context.World);
+            Uniforms["HasVColor"].SetUniform1(context.Mesh.AttribDataIndex.ContainsKey(3) && context.Mesh.AttribDataIndex[3] != null);
 
             for (int i = 0; i < context.Instances.Length; i++) SetUniformVertex?.Invoke(Uniforms, context, i);
             
@@ -31,6 +31,8 @@ namespace SM.Base.Shader
 
             DrawObject(context.Mesh, context.Instances.Length, true);
 
+            CleanUp();
+
             GL.UseProgram(0);
         }
     }

SMCode/SM.Base/Text/TextDrawingBasis.cs

@@ -39,6 +39,8 @@ namespace SM.Base.Text
             set => _material.Tint = value;
         }
 
+        public float Spacing = 1;
+
         protected TextDrawingBasis(Font font)
         {
             _material.Texture = font;
@@ -57,8 +59,15 @@ namespace SM.Base.Text
             _modelMatrixs = new Instance[_text.Length];
 
             float x = 0;
+            CharParameter _last = new CharParameter();
             for (var i = 0; i < _text.Length; i++)
             {
+                if (_text[i] == 32)
+                {
+                    x += _last.Width * Spacing;
+                    continue;
+                }
+                
                 CharParameter parameter;
                 try
                 {
@@ -66,17 +75,20 @@ namespace SM.Base.Text
                 }
                 catch
                 {
-                    throw new Exception("Font doesn't contain '"+_text[i]+"'");
+                    throw new Exception("Font doesn't contain '" + _text[i] + "'");
                 }
 
-                Matrix4 matrix = Matrix4.CreateScale(parameter.Width, Font.Height, 1) * Matrix4.CreateTranslation(x, 0, 0);
+                Matrix4 matrix = Matrix4.CreateScale(parameter.Width, Font.Height, 1) *
+                                 Matrix4.CreateTranslation(x, 0, 0);
                 _modelMatrixs[i] = new Instance
                 {
                     ModelMatrix = matrix,
                     TexturePosition = new Vector2(parameter.RelativeX, 0),
                     TextureScale = new Vector2(parameter.RelativeWidth, 1)
                 };
-                x += parameter.Width;
+                
+                x += parameter.Width * Spacing;
+                _last = parameter;
             }
         }
     }

SMCode/SM.Base/Window/Contexts/DrawContext.cs

@@ -14,7 +14,7 @@ namespace SM.Base.Contexts
         public Matrix4 View;
         public Instance[] Instances;
 
-        public Mesh Mesh;
+        public GenericMesh Mesh;
         public Material Material;
 
         public Vector2 WorldScale;

SMCode/SM.Base/Window/GenericWindow.cs

@@ -4,14 +4,16 @@ using OpenTK;
 using OpenTK.Graphics;
 using OpenTK.Graphics.OpenGL4;
 using SM.Base.Contexts;
+using SM.Base.Objects.Static;
 using SM.Base.Scene;
-using SM.Base.StaticObjects;
+using SM.OGL;
 using SM.OGL.Shaders;
 
 namespace SM.Base
 {
-    public class GenericWindow<TScene, TCamera> : GameWindow
-        where TScene : GenericScene<TCamera>, new()
+    public class GenericWindow<TScene, TItem, TCamera> : GameWindow
+        where TScene : GenericScene<TCamera, TItem>, new()
+        where TItem : IShowItem
         where TCamera : GenericCamera, new()
     {
         private TCamera _viewportCamera;
@@ -30,6 +32,17 @@ namespace SM.Base
 
         protected override void OnLoad(EventArgs e)
         {
+            GLSystem.INIT_SYSTEM();
+
+            Console.Write("----------------------\n" +
+                          "--- OpenGL Loading ---\n" +
+                          "----------------------------------\n" +
+                          $"--- {"DeviceVersion",14}: {GLSystem.DeviceVersion,-10} ---\n" +
+                          $"--- {"ForcedVersion",14}: {GLSystem.ForcedVersion,-10} ---\n" +
+                          $"--- {"ShadingVersion",14}: {GLSystem.ShadingVersion,-10} ---\n" +
+                          $"--- {"Debugging",14}: {GLSystem.Debugging,-10} ---\n" +
+                          $"----------------------------------\n");
+
             base.OnLoad(e);
         }
 

SMCode/SM.OGL/GLDebugging.cs

@@ -32,10 +32,10 @@ namespace SM.OGL
                 GL.Enable(EnableCap.DebugOutput);
                 GL.Enable(EnableCap.DebugOutputSynchronous);
             }
-            catch
+            catch (AccessViolationException)
             {
                 Console.WriteLine("Enableing proper GLDebugging failed. \n" +
-                                  "Often it fails, because your hardware doesn't provied proper OpenGL 4 \n" +
+                                  "Often it fails, because your hardware doesn't provide proper OpenGL 4 \n" +
                                   "    or KHR_debug extension support.");
 
             }

SMCode/SM.OGL/GLObject.cs

@@ -13,7 +13,7 @@ namespace SM.OGL
         {
             get
             {
-                if (AutoCompile && _id < 0) Compile();
+                if (AutoCompile && !WasCompiled) Compile();
                 return _id;
             }
         }
@@ -27,7 +27,7 @@ namespace SM.OGL
 
         public void Name(string name)
         {
-            GL.ObjectLabel(TypeIdentifier, _id, name.Length, name);
+            if (GLSystem.Debugging) GL.ObjectLabel(TypeIdentifier, _id, name.Length, name);
         }
 
         public static implicit operator int(GLObject glo) => glo.ID;

SMCode/SM.OGL/GLSystem.cs

@@ -0,0 +1,33 @@
+using System.Linq;
+using OpenTK.Graphics.OpenGL4;
+
+namespace SM.OGL
+{
+    public class GLSystem
+    {
+        private static bool _init = false;
+
+        public static Version DeviceVersion { get; private set; }
+        public static Version ForcedVersion { get; set; } = new Version();
+
+        public static Version ShadingVersion { get; private set; }
+        public static string[] Extensions { get; private set; }
+
+        public static bool Debugging { get; private set; }
+
+        public static void INIT_SYSTEM()
+        {
+            if (_init) return;
+
+            DeviceVersion = Version.CreateGLVersion(GL.GetString(StringName.Version));
+
+            ShadingVersion = Version.CreateGLVersion(GL.GetString(StringName.ShadingLanguageVersion));
+            Extensions = GL.GetString(StringName.Extensions).Split(' ');
+
+            Debugging = Extensions.Contains("KHR_debug");
+            if (Debugging) GLDebugging.EnableDebugging();
+
+            _init = true;
+        }
+    }
+}

SMCode/SM.OGL/Mesh/BoundingBox.cs

@@ -0,0 +1,40 @@
+using System;
+using System.Runtime.CompilerServices;
+using OpenTK;
+
+namespace SM.OGL.Mesh
+{
+    public class BoundingBox
+    {
+        public Vector3 Max = Vector3.Zero;
+        public Vector3 Min = Vector3.Zero;
+
+        public Vector3 this[bool x, bool y, bool z] => new Vector3(x ? Max.X : Min.X, y ? Max.Y : Min.Y, z ? Max.Z : Min.Z);
+
+        public BoundingBox() {}
+
+        public BoundingBox(Vector3 min, Vector3 max)
+        {
+            Min = min;
+            Max = max;
+        }
+
+        public void Update(Vector2 vector)
+        {
+            for (int i = 0; i < 2; i++)
+            {
+                Min[i] = Math.Min(Min[i], vector[i]);
+                Max[i] = Math.Max(Min[i], vector[i]);
+            }
+        }
+
+        public void Update(Vector3 vector)
+        {
+            for (int i = 0; i < 3; i++)
+            {
+                Min[i] = Math.Min(Min[i], vector[i]);
+                Max[i] = Math.Max(Min[i], vector[i]);
+            }
+        }
+    }
+}

SMCode/SM.OGL/Mesh/GenericMesh.cs

@@ -1,13 +1,12 @@
 using System;
 using System.Collections.Generic;
 using OpenTK.Graphics.OpenGL4;
+using Buffer = OpenTK.Graphics.OpenGL4.Buffer;
 
 namespace SM.OGL.Mesh
 {
-    public class Mesh : GLObject
+    public abstract class GenericMesh : GLObject
     {
-        public static int BufferSizeMultiplier = 3;
-
         protected override bool AutoCompile { get; } = true;
         public override ObjectLabelIdentifier TypeIdentifier { get; } = ObjectLabelIdentifier.VertexArray;
 
@@ -17,9 +16,13 @@ namespace SM.OGL.Mesh
         public virtual VBO UVs { get; }
         public virtual VBO Normals { get; }
 
+        public virtual BoundingBox BoundingBox { get; } = new BoundingBox();
+
         public virtual Dictionary<int, VBO> AttribDataIndex { get; }
 
-        public Mesh()
+        public virtual int[] Indices { get; set; }
+
+        protected GenericMesh()
         {
             AttribDataIndex = new Dictionary<int, VBO>()
             {

SMCode/SM.OGL/Mesh/VBO.cs

@@ -1,6 +1,8 @@
 using System;
 using System.Collections.Generic;
+using System.Linq;
 using OpenTK;
+using OpenTK.Graphics;
 using OpenTK.Graphics.OpenGL4;
 
 namespace SM.OGL.Mesh
@@ -29,6 +31,12 @@ namespace SM.OGL.Mesh
         public void Add(float x, float y) => AddRange(new[] {x,y});
         public void Add(float x, float y, float z) => AddRange(new[] {x,y,z});
         public void Add(float x, float y, float z, float w) => AddRange(new[] {x,y,z,w});
+        public void Add(Vector2 vector) => Add(vector.X, vector.Y);
+        public void Add(Vector2 vector, float z) => Add(vector.X, vector.Y, z);
+        public void Add(Vector2 vector, float z, float w) => Add(vector.X, vector.Y, z, w);
+        public void Add(Vector3 vector) => Add(vector.X, vector.Y, vector.Z);
+        public void Add(Vector4 vector) => Add(vector.X, vector.Y, vector.Z, vector.W);
+        public void Add(Color4 color) => Add(color.R, color.G, color.B, color.A);
 
         public void BindBuffer(int attribID)
         {
@@ -36,7 +44,7 @@ namespace SM.OGL.Mesh
 
             int buffer = GL.GenBuffer();
             GL.BindBuffer(BufferTarget.ArrayBuffer, buffer);
-            GL.BufferData(BufferTarget.ArrayBuffer, data.Length * Mesh.BufferSizeMultiplier, data, BufferUsageHint);
+            GL.BufferData(BufferTarget.ArrayBuffer, data.Length * sizeof(float), data, BufferUsageHint);
 
             GL.VertexAttribPointer(attribID, PointerSize, PointerType, Normalised, PointerStride, PointerOffset);
             GL.EnableVertexAttribArray(attribID);

SMCode/SM.OGL/SM.OGL.csproj

@@ -46,7 +46,9 @@
   <ItemGroup>
     <Compile Include="GLDebugging.cs" />
     <Compile Include="GLObject.cs" />
-    <Compile Include="Mesh\Mesh.cs" />
+    <Compile Include="GLSystem.cs" />
+    <Compile Include="Mesh\BoundingBox.cs" />
+    <Compile Include="Mesh\GenericMesh.cs" />
     <Compile Include="Mesh\TypeDefinition.cs" />
     <Compile Include="Mesh\VBO.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
@@ -56,6 +58,7 @@
     <Compile Include="Shaders\Uniform.cs" />
     <Compile Include="Shaders\UniformCollection.cs" />
     <Compile Include="Texture\TextureBase.cs" />
+    <Compile Include="Version.cs" />
   </ItemGroup>
   <ItemGroup />
   <ItemGroup>

SMCode/SM.OGL/Shaders/GenericShader.cs

@@ -48,10 +48,22 @@ namespace SM.OGL.Shaders
             Load();
         }
 
-        public void DrawObject(Mesh.Mesh mesh, int amount, bool bindVAO = false)
+        public void DrawObject(Mesh.GenericMesh mesh, int amount, bool bindVAO = false)
         {
             if (bindVAO) GL.BindVertexArray(mesh);
-            GL.DrawArraysInstanced(mesh.PrimitiveType, 0, mesh.Vertex.Count, amount);
+
+            if (mesh.Indices != null)
+                GL.DrawElementsInstanced(mesh.PrimitiveType, 0, DrawElementsType.UnsignedInt, mesh.Indices, amount);
+            else 
+                GL.DrawArraysInstanced(mesh.PrimitiveType, 0, mesh.Vertex.Count, amount);
+        }
+
+        protected void CleanUp()
+        {
+            Uniforms.NextTexture = 0;
+
+            GL.BindTexture(TextureTarget.Texture2D, 0);
+            GL.BindVertexArray(0);
         }
     }
 }

SMCode/SM.OGL/Version.cs

@@ -0,0 +1,31 @@
+namespace SM.OGL
+{
+    public struct Version
+    {
+        public int MajorVersion;
+        public int MinorVersion;
+
+        public Version(int majorVersion, int minorVersion)
+        {
+            MinorVersion = minorVersion;
+            MajorVersion = majorVersion;
+        }
+
+        public Version(string version)
+        {
+            string[] splits = version.Trim().Split(new []{'.'}, 2);
+            MajorVersion = int.Parse(splits[0]);
+            MinorVersion = int.Parse(splits[1]);
+        }
+
+        public override string ToString()
+        {
+            return $"{MajorVersion}.{MinorVersion}";
+        }
+
+        public static Version CreateGLVersion(string version)
+        {
+            return new Version(version.Substring(0, 3));
+        }
+    }
+}

SMCode/SM2D/Drawing/DrawBackground.cs

@@ -2,8 +2,8 @@
 using OpenTK;
 using OpenTK.Graphics;
 using SM.Base.Contexts;
+using SM.Base.Objects.Static;
 using SM.Base.Scene;
-using SM.Base.StaticObjects;
 using SM.Base.Textures;
 using SM.OGL.Texture;
 using SM2D.Types;

SMCode/SM2D/Drawing/DrawColor.cs

@@ -0,0 +1,35 @@
+using OpenTK.Graphics;
+using SM.Base.Contexts;
+using SM.Base.Scene;
+using SM2D.Scene;
+using SM2D.Types;
+
+namespace SM2D.Drawing
+{
+    public class DrawColor : DrawingBasis<Transformation>, I2DShowItem
+    {
+        public Color4 Tint
+        {
+            get => _material.Tint;
+            set => _material.Tint = value;
+        }
+
+        public int ZIndex { get; set; }
+
+        public DrawColor() {}
+
+        public DrawColor(Color4 color)
+        {
+            _material.Tint = color;
+        }
+
+        public override void Draw(DrawContext context)
+        {
+            base.Draw(context);
+            ApplyContext(ref context);
+            context.Instances[0].ModelMatrix = Transform.GetMatrix();
+
+            _material.Shader.Draw(context);
+        }
+    }
+}

SMCode/SM2D/Drawing/DrawComplex.cs

@@ -0,0 +1,35 @@
+using SM.Base.Contexts;
+using SM.Base.Scene;
+using SM.OGL.Mesh;
+using SM2D.Scene;
+using SM2D.Types;
+
+namespace SM2D.Drawing
+{
+    public class DrawComplex: DrawingBasis<Transformation>, I2DShowItem
+    {
+        public int ZIndex { get; set; }
+
+        public Material Material
+        {
+            get => _material;
+            set => _material = value;
+        }
+
+        public GenericMesh Mesh
+        {
+            get => _mesh;
+            set => _mesh = value;
+        }
+
+        public override void Draw(DrawContext context)
+        {
+            base.Draw(context);
+            ApplyContext(ref context);
+
+            context.Instances[0].ModelMatrix = Transform.GetMatrix();
+
+            _material.Shader.Draw(context);
+        }
+    }
+}

SMCode/SM2D/Drawing/DrawPolygon.cs

@@ -0,0 +1,38 @@
+using System.Drawing;
+using OpenTK.Graphics;
+using SM.Base.Textures;
+using SM.OGL.Texture;
+using SM2D.Object;
+
+namespace SM2D.Drawing
+{
+    public class DrawPolygon : DrawColor
+    {
+        public Polygon Polygon
+        {
+            get => (Polygon)_mesh;
+            set => _mesh = value;
+        }
+
+        public Texture Texture
+        {
+            get => (Texture)_material.Texture;
+            set => _material.Texture = value;
+        }
+
+        public DrawPolygon(Polygon polygon) {}
+
+        public DrawPolygon(Polygon polygon, Bitmap map) : this(polygon, map, Color4.White) {}
+
+        public DrawPolygon(Polygon polygon, Color4 color) : base(color)
+        {
+            _mesh = polygon;
+        }
+        public DrawPolygon(Polygon polygon, Bitmap map, Color4 tint) : base(tint)
+        {
+            _mesh = polygon;
+
+            _material.Texture = new Texture(map);
+        }
+    }
+}

SMCode/SM2D/Drawing/DrawText.cs

@@ -1,14 +1,17 @@
 using SM.Base.Contexts;
 using SM.Base.Text;
+using SM.Base.Types;
+using SM2D.Scene;
 using SM2D.Types;
 
 namespace SM2D.Drawing
 {
-    public class DrawText : TextDrawingBasis<Transformation>
+    public class DrawText : TextDrawingBasis<Transformation>, I2DShowItem
     {
         public DrawText(Font font, string text) : base(font)
         {
             _text = text;
+            Transform.Size = new Vector2(1);
         }
 
         public override void Draw(DrawContext context)
@@ -21,5 +24,7 @@ namespace SM2D.Drawing
 
             _material.Shader.Draw(context);
         }
+
+        public int ZIndex { get; set; }
     }
 }

SMCode/SM2D/Drawing/DrawTexture.cs

@@ -5,48 +5,40 @@ using SM.Base.Contexts;
 using SM.Base.Scene;
 using SM.Base.Textures;
 using SM.Base.Types;
+using SM2D.Scene;
 using SM2D.Types;
 using Vector2 = SM.Base.Types.Vector2;
 
 namespace SM2D.Drawing
 {
-    public class DrawTexture : DrawingBasis<Transformation>
+    public class DrawTexture : DrawColor
     {
         public static float MasterScale = .25f;
 
+        public float Scale = 1;
         public Texture Texture
         {
             get => (Texture) _material.Texture;
             set => _material.Texture = value;
         }
 
-        public Color4 Tint
-        {
-            get => _material.Tint;
-            set => _material.Tint = value;
-        }
-
-        public float Scale = 1;
+        public DrawTexture() {}
 
+        protected DrawTexture(Color4 color) : base(color) { }
 
         public DrawTexture(Bitmap map) : this(map, Color4.White)
         { }
 
-        public DrawTexture(Bitmap map, Color4 tint)
+        public DrawTexture(Bitmap map, Color4 color)
         {
             _material.Texture = new Texture(map);
-            _material.Tint = tint;
+            _material.Tint = color;
         }
 
         public override void Draw(DrawContext context)
         {
+            Transform.Size = new Vector2(Texture.Map.Width * MasterScale * Scale, Texture.Map.Height * MasterScale * Scale);
             base.Draw(context);
-            ApplyContext(ref context);
-
-            Transform.Size = new Vector2(Texture.Map.Width * MasterScale * Scale, Texture.Map.Height  * MasterScale * Scale);
-            context.Instances[0].ModelMatrix = Transform.GetMatrix();
-
-            _material.Shader.Draw(context);
         }
     }
 }

SMCode/SM2D/GLWindow2D.cs

@@ -6,7 +6,7 @@ using SM2D.Scene;
 
 namespace SM2D
 {
-    public class GLWindow2D : GenericWindow<Scene.Scene, Camera>
+    public class GLWindow2D : GenericWindow<Scene.Scene, I2DShowItem, Camera>
     {
 
 

SMCode/SM2D/Object/Polygon.cs

@@ -0,0 +1,62 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using OpenTK;
+using OpenTK.Graphics;
+using OpenTK.Graphics.OpenGL4;
+using SM.Base.Objects;
+using SM.OGL.Mesh;
+
+namespace SM2D.Object
+{
+    public class Polygon : Mesh
+    {
+        public override VBO Vertex { get; } = new VBO();
+        public override VBO UVs { get; } = new VBO(pointerSize:2);
+        public override VBO Color { get; } = new VBO(pointerSize: 4);
+
+        public override PrimitiveType PrimitiveType { get; } = PrimitiveType.TriangleFan;
+
+
+
+        public Polygon(ICollection<Vector2> vertices)
+        {
+            foreach (Vector2 vertex in vertices)
+            {
+                Color.Add(Color4.White);
+                AddVertex(vertex);
+            }
+
+            foreach (Vector2 vertex in vertices)
+            {
+                AddUV(vertex);
+            }
+        }
+
+        public Polygon(ICollection<PolygonVertex> vertices)
+        {
+            foreach (PolygonVertex polygonVertex in vertices)
+            {
+                Color.Add(polygonVertex.Color);
+                AddVertex(polygonVertex.Vertex);
+            }
+
+            foreach (PolygonVertex vertex in vertices)
+            {
+                AddUV(vertex.Vertex);
+            }
+        }
+
+        private void AddVertex(Vector2 vertex)
+        {
+            BoundingBox.Update(vertex);
+            Vertex.Add(vertex, 0);
+        }
+
+        private void AddUV(Vector2 vertex)
+        {
+            Vector2 uv = Vector2.Divide(vertex, BoundingBox.Max.Xy) + BoundingBox.Min.Xy;
+            UVs.Add(uv);
+        }
+    }
+}

SMCode/SM2D/Object/PolygonVertex.cs

@@ -0,0 +1,17 @@
+using OpenTK;
+using OpenTK.Graphics;
+
+namespace SM2D.Object
+{
+    public struct PolygonVertex
+    {
+        public Vector2 Vertex;
+        public Color4 Color;
+
+        public PolygonVertex(Vector2 vertex = default, Color4 color = default)
+        {
+            Vertex = vertex;
+            Color = color;
+        }
+    }
+}

SMCode/SM2D/SM2D.csproj

@@ -46,11 +46,18 @@
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Drawing\DrawBackground.cs" />
+    <Compile Include="Drawing\DrawColor.cs" />
+    <Compile Include="Drawing\DrawComplex.cs" />
+    <Compile Include="Drawing\DrawPolygon.cs" />
     <Compile Include="Drawing\DrawText.cs" />
     <Compile Include="Drawing\DrawTexture.cs" />
     <Compile Include="GLWindow2D.cs" />
+    <Compile Include="Object\Polygon.cs" />
+    <Compile Include="Object\PolygonVertex.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="Scene\Camera.cs" />
+    <Compile Include="Scene\I2DShowItem.cs" />
+    <Compile Include="Scene\ItemCollection.cs" />
     <Compile Include="Scene\Scene.cs" />
     <Compile Include="Types\Transformation.cs" />
   </ItemGroup>

SMCode/SM2D/Scene/Camera.cs

@@ -12,12 +12,12 @@ namespace SM2D.Scene
 
         protected override Matrix4 ViewCalculation()
         {
-            return Matrix4.LookAt(Position.X, Position.Y, -1, Position.X, Position.Y, 0, 0, 1, 0);
+            return Matrix4.LookAt(Position.X, Position.Y, 2, Position.X, Position.Y, 0, 0, 1, 0);
         }
 
         public override void RecalculateWorld(OpenTK.Vector2 world, float aspect)
         {
-            OrthographicWorld = Matrix4.CreateOrthographicOffCenter(world.X / 2, -world.X / 2, world.Y / 2, -world.Y / 2, 0.1f, 100);
+            OrthographicWorld = Matrix4.CreateOrthographicOffCenter(-world.X / 2, world.X / 2, world.Y / 2, -world.Y / 2, 0.1f, 4f);
         }
     }
 }

SMCode/SM2D/Scene/I2DShowItem.cs

@@ -0,0 +1,10 @@
+using SM.Base.Scene;
+
+namespace SM2D.Scene
+{
+    public interface I2DShowItem : IShowItem
+    {
+        int ZIndex { get; set; }
+
+    }
+}

SMCode/SM2D/Scene/ItemCollection.cs

@@ -0,0 +1,24 @@
+using SM.Base.Contexts;
+using SM.Base.Scene;
+using SM.Base.Types;
+using SM2D.Types;
+
+namespace SM2D.Scene
+{
+    public class ItemCollection : GenericItemCollection<I2DShowItem, Transformation>, I2DShowItem
+    {
+        public ItemCollection()
+        {
+            Transform.Size = new Vector2(1);
+        }
+
+        public override void Draw(DrawContext context)
+        {
+            Objects.Sort((x, y) => x.ZIndex - y.ZIndex);
+
+            base.Draw(context);
+        }
+
+        public int ZIndex { get; set; }
+    }
+}

SMCode/SM2D/Scene/Scene.cs

@@ -1,10 +1,11 @@
 using OpenTK.Graphics;
+using SM.Base.Contexts;
 using SM.Base.Scene;
 using SM2D.Drawing;
 
 namespace SM2D.Scene
 {
-    public class Scene : GenericScene<Camera>
+    public class Scene : GenericScene<Camera, I2DShowItem>
     {
         public DrawBackground Background => (DrawBackground)_background;
 
@@ -12,5 +13,11 @@ namespace SM2D.Scene
         {
             _background = new DrawBackground(Color4.Black);
         }
+
+        public override void Draw(DrawContext context)
+        {
+            Objects.Sort((x,y) => x.ZIndex - y.ZIndex);
+            base.Draw(context);
+        }
     }
 }

SMCode/SM2D/Types/Transformation.cs

@@ -9,12 +9,13 @@ namespace SM2D.Types
         public Vector2 Position = new Vector2(0);
         public Vector2 Size = new Vector2(50);
         public float Rotation;
+        public int ZIndex = 0;
 
         public override Matrix4 GetMatrix()
         {
             return Matrix4.CreateScale(Size.X, Size.Y, 1) *
                    Matrix4.CreateRotationZ(MathHelper.DegreesToRadians(Rotation)) *
-                   Matrix4.CreateTranslation(Position.X, Position.Y, 1);
+                   Matrix4.CreateTranslation(Position.X, Position.Y, ZIndex);
         }
     }
 }