Add text next to each hole

MusicBoxConverter/MusicBoxScoreGenerator.cs

@@ -130,6 +130,7 @@ namespace MusicBoxConverter
 			svg.WriteRectangle(Offset, area, "red", 0.75f);
 
 
+			int noteIndex = 0;
 			foreach (Note note in AllNotes())
 			{
 				if(Debug) {
@@ -155,6 +156,13 @@ namespace MusicBoxConverter
 					new Vector2(HoleSize, HoleSize)
 				);
 
+				svg.WriteText(
+					holePosition.Subtract(new Vector2(-HoleSize * 2, HoleSize/2 + -svg.FontSizeRegular/2)),
+					$"{noteIndex}",
+					"regular"
+				);
+
+				noteIndex++;
 			}
 
 			svg.Complete();

MusicBoxConverter/SvgWriter.cs

@@ -27,6 +27,10 @@ namespace MusicBoxConverter
 
 		public string UnitSuffix { get; set; } = "";
 
+		public float FontSizeRegular { get; set; } = 3;
+
+		private bool haveWrittenFontStyles = false;
+
 		public SvgWriter(string outputFilename, string widthspec = "100%", string heightspec = "100%", Rectangle viewBox = null)
 		{
 			xml = XmlWriter.Create(
@@ -57,6 +61,22 @@ namespace MusicBoxConverter
 			xml.Close();
 		}
 
+		public void WriteText(Vector2 pos, string text, string className)
+		{
+			if (!haveWrittenFontStyles)
+			{
+				xml.WriteElementString("style", $".regular {{ font: {FontSizeRegular}{UnitSuffix} sans-serif; }}");
+				haveWrittenFontStyles = true;
+			}
+
+			xml.WriteStartElement("text");
+			xml.WriteAttributeString("x", $"{pos.X}{UnitSuffix}");
+			xml.WriteAttributeString("y", $"{pos.Y}{UnitSuffix}");
+			xml.WriteAttributeString("class", className);
+			xml.WriteString(text);
+			xml.WriteEndElement();
+		}
+
 		public void WriteLine(Vector2 start, Vector2 end, string strokeStyle = "darkgreen", float strokeWidth = 3)
 		{
 			xml.WriteStartElement("line");