20.09.2020

+ Instance Drawing
+ Text and Font

~ Made "DrawBackground" forced Background for 2D

- DrawEmpty

SMCode/SM.Base/Text/TextDrawingBasis.cs

@@ -0,0 +1,83 @@
+using System;
+using OpenTK;
+using OpenTK.Graphics;
+using SM.Base.Contexts;
+using SM.Base.Scene;
+using SM.Data.Fonts;
+
+namespace SM.Base.Text
+{
+    public abstract class TextDrawingBasis<TTransform> : DrawingBasis<TTransform>
+        where TTransform : GenericTransformation, new()
+    {
+        protected Instance[] _modelMatrixs;
+        protected string _text;
+
+        public Font Font
+        {
+            get => (Font) _material.Texture;
+            set
+            {
+                _material.Texture = value;
+                GenerateMatrixes();
+            }
+        }
+
+        public string Text
+        {
+            get => _text;
+            set
+            {
+                _text = value;
+                GenerateMatrixes();
+            }
+        }
+
+        public Color4 Color
+        {
+            get => _material.Tint;
+            set => _material.Tint = value;
+        }
+
+        protected TextDrawingBasis(Font font)
+        {
+            _material.Texture = font;
+        }
+
+        public override void Draw(DrawContext context)
+        {
+            base.Draw(context);
+            if (_modelMatrixs == null) GenerateMatrixes();
+        }
+
+        public void GenerateMatrixes()
+        {
+            if (!Font.WasCompiled) Font.RegenerateTexture();
+
+            _modelMatrixs = new Instance[_text.Length];
+
+            float x = 0;
+            for (var i = 0; i < _text.Length; i++)
+            {
+                CharParameter parameter;
+                try
+                {
+                    parameter = Font.Positions[_text[i]];
+                }
+                catch
+                {
+                    throw new Exception("Font doesn't contain '"+_text[i]+"'");
+                }
+
+                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;
+            }
+        }
+    }
+}