Added ui labels for debugging and playability

UI/CharData.cs

@@ -0,0 +1,47 @@
+public static class CharWidth
+{
+    private static readonly Dictionary<char, float> CharWidths = new Dictionary<char, float>();
+    
+    static CharWidth()
+    {
+        // Default for all ASCII
+        for (char c = (char)32; c <= (char)126; c++)
+            CharWidths[c] = 5.0f;
+        
+        // Override exceptions
+        CharWidths[' '] = 3.0f;
+        CharWidths['!'] = 1.0f;
+        CharWidths['"'] = 3.0f;
+        CharWidths['\''] = 1.0f;
+        CharWidths['('] = 3.0f;
+        CharWidths[')'] = 3.0f;
+        CharWidths['*'] = 3.0f;
+        CharWidths[','] = 1.0f;
+        CharWidths['.'] = 1.0f;
+        CharWidths[':'] = 1.0f;
+        CharWidths[';'] = 1.0f;
+        CharWidths['<'] = 4.0f;
+        CharWidths['>'] = 4.0f;
+        CharWidths['@'] = 6.0f;
+        CharWidths['I'] = 3.0f;
+        CharWidths['['] = 3.0f;
+        CharWidths[']'] = 3.0f;
+        CharWidths['`'] = 2.0f;
+        CharWidths['f'] = 4.0f;
+        CharWidths['i'] = 1.0f;
+        CharWidths['k'] = 4.0f;
+        CharWidths['l'] = 2.0f;
+        CharWidths['t'] = 3.0f;
+        CharWidths['{'] = 3.0f;
+        CharWidths['|'] = 1.0f;
+        CharWidths['}'] = 3.0f;
+        CharWidths['~'] = 6.0f;
+    }
+    
+    public static float GetWidth(char c)
+    {
+        if (CharWidths.TryGetValue(c, out float width))
+            return width;
+        return 5.0f;
+    }
+}

UI/GuiBatcher.cs

@@ -77,7 +77,10 @@ public class GuiBatcher
             );
 
             DrawQuad(currentX, y, size, size, uv, color);
-            currentX += size * 0.8f; // Tighten horizontal spacing
+
+            float charWidthPixels = (CharWidth.GetWidth(c) + 1) / 8;
+            float charWidthWorldUnits = size * charWidthPixels;
+            currentX += charWidthWorldUnits;
         }
     }
 }

UI/Label.cs

@@ -0,0 +1,21 @@
+using OpenTK.Mathematics;
+
+namespace Voxel.UI {
+    public class Label
+    {
+        public string Text;
+        public float X;
+        public float Y;
+        public float Size;
+        public Vector4 Color;
+
+        public Label(string text, float x, float y, float size, Vector4 color)
+        {
+            Text = text;
+            X = x;
+            Y = y;
+            Size = size;
+            Color = color;
+        }
+    }
+}