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.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);