add SpriteBatch text rendering method overloads accepting a StringBuilder directly

Blarg.GameFramework/Graphics/SpriteBatch.cs

@@ -518,6 +518,61 @@ namespace Blarg.GameFramework.Graphics
 			}
 		}
 
+		public void Render(SpriteFont font, int x, int y, Color color, StringBuilder text)
+		{
+			Render(font, x, y, ref color, 1.0f, text);
+		}
+
+		public void Render(SpriteFont font, int x, int y, ref Color color, StringBuilder text)
+		{
+			Render(font, x, y, ref color, 1.0f, text);
+		}
+
+		public void Render(SpriteFont font, int x, int y, Color color, float scale, StringBuilder text)
+		{
+			Render(font, x, y, ref color, scale, text);
+		}
+
+		public void Render(SpriteFont font, int x, int y, ref Color color, float scale, StringBuilder text)
+		{
+			float scaledLetterHeight = (float)font.LetterHeight * scale;
+
+			y = (int)FixYCoord(y, scaledLetterHeight);
+
+			float drawX = (float)x;
+			float drawY = (float)y;
+
+			for (int i = 0; i < text.Length; ++i)
+			{
+				char c = text[i];
+				if (c == '\n')
+				{
+					// new line
+					drawX = (float)x;
+					drawY -= scaledLetterHeight;
+				}
+				else
+				{
+					RectF texCoords;
+					Rect dimensions;
+					font.GetCharTexCoords(c, out texCoords);
+					font.GetCharDimensions(c, out dimensions);
+
+					float scaledGlyphWidth = (float)dimensions.Width * scale;
+					float scaledGlyphHeight = (float)dimensions.Height * scale;
+
+					AddSprite(
+						font.Texture, 
+						drawX, drawY, drawX + scaledGlyphWidth, drawY + scaledGlyphHeight, 
+						texCoords.Left, texCoords.Top, texCoords.Right, texCoords.Bottom, 
+						ref color
+						);
+
+					drawX += scaledGlyphWidth;
+				}
+			}
+		}
+
 		public void Render(SpriteFont font, Vector3 worldPosition, Color color, string text)
 		{
 			Render(font, ref worldPosition, ref color, 1.0f, text);
@@ -593,6 +648,35 @@ namespace Blarg.GameFramework.Graphics
 			Render(font, ref worldPosition, ref color, scale, _buffer.ToString());
 		}
 
+		public void Render(SpriteFont font, Vector3 worldPosition, Color color, StringBuilder text)
+		{
+			Render(font, ref worldPosition, ref color, 1.0f, text);
+		}
+
+		public void Render(SpriteFont font, ref Vector3 worldPosition, ref Color color, StringBuilder text)
+		{
+			Render(font, ref worldPosition, ref color, 1.0f, text);
+		}
+
+		public void Render(SpriteFont font, Vector3 worldPosition, Color color, float scale, StringBuilder text)
+		{
+			Render(font, ref worldPosition, ref color, scale, text);
+		}
+
+		public void Render(SpriteFont font, ref Vector3 worldPosition, ref Color color, float scale, StringBuilder text)
+		{
+			var screenCoordinates = GraphicsDevice.ViewContext.Camera.Project(ref worldPosition, ref _previousModelView, ref _previousProjection);
+
+			int textWidth;
+			int textHeight;
+			font.MeasureString(out textWidth, out textHeight, scale, text);
+
+			screenCoordinates.X -= textWidth / 2;
+			screenCoordinates.Y -= textHeight / 2;
+
+			Render(font, screenCoordinates.X, screenCoordinates.Y, ref color, scale, text);
+		}
+
 		#endregion
 
 		#region Internal Sprite Addition / Management

Blarg.GameFramework/Graphics/SpriteFont.cs

@@ -97,36 +97,7 @@ namespace Blarg.GameFramework.Graphics
 
 		public void MeasureString(out int width, out int height, string format, params object[] args)
 		{
-			_buffer.Clear();
+			MeasureString(out width, out height, 1.0f, format, args);
-			_buffer.AppendFormat(format, args);
-
-			int textLength = _buffer.Length;
-
-			int currentMaxWidth = 0;
-			int left = 0;
-			int numLines = 1;
-
-			for (int i = 0; i < textLength; ++i)
-			{
-				char c = _buffer[i];
-				if (c == '\n')
-				{
-					// new line
-					left = 0;
-					++numLines;
-				}
-				else
-				{
-					Rect charSize = new Rect();
-					GetCharDimensions(c, out charSize);
-					left += charSize.Width;
-				}
-
-				currentMaxWidth = Math.Max(left, currentMaxWidth);
-			}
-
-			width = currentMaxWidth;
-			height = numLines * LetterHeight;
 		}
 
 		public void MeasureString(out int width, out int height, float scale, string format, params object[] args)
@@ -164,5 +135,43 @@ namespace Blarg.GameFramework.Graphics
 			width = (int)Math.Ceiling(currentMaxWidth);
 			height = (int)(numLines * scaledLetterHeight);
 		}
+
+		public void MeasureString(out int width, out int height, StringBuilder text)
+		{
+			MeasureString(out width, out height, 1.0f, text);
+		}
+
+		public void MeasureString(out int width, out int height, float scale, StringBuilder text)
+		{
+			int textLength = text.Length;
+
+			float scaledLetterHeight = (float)LetterHeight * scale;
+
+			float currentMaxWidth = 0.0f;
+			float left = 0.0f;
+			int numLines = 1;
+
+			for (int i = 0; i < textLength; ++i)
+			{
+				char c = text[i];
+				if (c == '\n')
+				{
+					// new line
+					left = 0.0f;
+					++numLines;
+				}
+				else
+				{
+					Rect charSize = new Rect();
+					GetCharDimensions(c, out charSize);
+					left += (float)charSize.Width * scale;
+				}
+
+				currentMaxWidth = Math.Max(left, currentMaxWidth);
+			}
+
+			width = (int)Math.Ceiling(currentMaxWidth);
+			height = (int)(numLines * scaledLetterHeight);
+		}
 	}
 }