public void DrawString(string s, int x, int y, int size)
{
float curX = x;
float curY = y;
// TODO: replace with VAO creation
GL.Begin(BeginMode.Quads);
float scaleSize = size / (float)_characterSet.RenderedSize;
foreach (char c in s)
{
BitmapCharacter bc = _characterSet.GetCharacterByID((int)c);
// upper left
GL.TexCoord2((float)bc.X / (float)_characterSet.Width, (float)bc.Y / (float)_characterSet.Height);
GL.Vertex2(curX + bc.XOffset * scaleSize, curY + bc.YOffset * scaleSize);
// upper right
GL.TexCoord2((float)(bc.X + bc.Width) / (float)_characterSet.Width, (float)bc.Y / (float)_characterSet.Height);
GL.Vertex2(curX + bc.Width * scaleSize + bc.XOffset * scaleSize, curY + bc.YOffset * scaleSize);
// lower right
GL.TexCoord2((float)(bc.X + bc.Width) / (float)_characterSet.Width, (float)(bc.Y + bc.Height) / (float)_characterSet.Height);
GL.Vertex2(curX + bc.Width * scaleSize + bc.XOffset * scaleSize, curY + bc.Height * scaleSize + bc.YOffset * scaleSize);
// lower left
GL.TexCoord2((float)bc.X / (float)_characterSet.Width, (float)(bc.Y + bc.Height) / (float)_characterSet.Height);
GL.Vertex2(curX + bc.XOffset * scaleSize, curY + bc.Height * scaleSize + bc.YOffset * scaleSize);
curX += bc.XAdvance * scaleSize;
}
GL.End();
}
public Vector2 MeasureString(string s)
{
int height = _characterSet.LineHeight;
int width = 0;
int lineWidth = 0;
for (int i = 0; i < s.Length; i++)
{
BitmapCharacter bc = _characterSet.GetCharacterByID(s[i]);
if (s[i] == '\n')
{
height += _characterSet.LineHeight;
lineWidth += _characterSet.GetCharacterByID(s[i - 1]).Width;
if (lineWidth > width)
{
width = lineWidth;
}
lineWidth = 0;
}
//else if (i == s.Length - 1) // last character
//{
// lineWidth += bc.XOffset + _characterSet.PaddingLeft + bc.Width - (_characterSet.PaddingLeft + _characterSet.PaddingRight);
//}
else
{
lineWidth += (int)bc.XAdvance;
}
}
lineWidth += _characterSet.GetCharacterByID(s[s.Length - 1]).Width;
if (lineWidth > width)
{
width = lineWidth;
}
return(new Vector2(width, height));
}
public VertexPositionColorTexture[] Build(string s, Matrix4 world, int size, Color4 color, out ushort[] indices)
{
List <ushort> indexList = new List <ushort>();
List <VertexPositionColorTexture> vertices = new List <VertexPositionColorTexture>();
ushort index = 0;
float curX = 0;
float curY = 0;
float scaleSize = size != 0 ? size / (float)_characterSet.RenderedSize : 1f;
Vector4 vcolor = new Vector4(color.R, color.G, color.B, color.A);
foreach (char c in s)
{
if (c == '\n')
{
curY += _characterSet.LineHeight;
curX = 0;
continue;
}
BitmapCharacter bc = _characterSet.GetCharacterByID((int)c);
// upper left
vertices.Add(new VertexPositionColorTexture(Vector3.Transform(new Vector3(curX + bc.XOffset * scaleSize, curY + bc.YOffset * scaleSize, 0), world),
vcolor,
new Vector2((float)bc.X / (float)_characterSet.Width, (float)bc.Y / (float)_characterSet.Height)));
// upper right
vertices.Add(new VertexPositionColorTexture(Vector3.Transform(new Vector3(curX + bc.Width * scaleSize + bc.XOffset * scaleSize, curY + bc.YOffset * scaleSize, 0), world),
vcolor,
new Vector2((float)(bc.X + bc.Width) / (float)_characterSet.Width, (float)bc.Y / (float)_characterSet.Height)));
// lower left
vertices.Add(new VertexPositionColorTexture(Vector3.Transform(new Vector3(curX + bc.XOffset * scaleSize, curY + bc.Height * scaleSize + bc.YOffset * scaleSize, 0), world),
vcolor,
new Vector2((float)bc.X / (float)_characterSet.Width, (float)(bc.Y + bc.Height) / (float)_characterSet.Height)));
// lower right
vertices.Add(new VertexPositionColorTexture(Vector3.Transform(new Vector3(curX + bc.Width * scaleSize + bc.XOffset * scaleSize, curY + bc.Height * scaleSize + bc.YOffset * scaleSize, 0), world),
vcolor,
new Vector2((float)(bc.X + bc.Width) / (float)_characterSet.Width, (float)(bc.Y + bc.Height) / (float)_characterSet.Height)));
indexList.Add((ushort)(index + 0));
indexList.Add((ushort)(index + 2));
indexList.Add((ushort)(index + 1));
indexList.Add((ushort)(index + 1));
indexList.Add((ushort)(index + 2));
indexList.Add((ushort)(index + 3));
index += 4;
curX += bc.XAdvance * scaleSize;
}
indices = indexList.ToArray();
return(vertices.ToArray());
}
public VertexPositionTexture[] Build(string s, int x, int y, int size, float depth, out ushort[] indices)
{
List <ushort> indexList = new List <ushort>();
List <VertexPositionTexture> vertices = new List <VertexPositionTexture>();
float curX = x;
float curY = y;
float scaleSize = size != 0 ? size / (float)_characterSet.RenderedSize : 1f;
foreach (char c in s)
{
if (c == '\n')
{
curY += _characterSet.LineHeight;
curX = x;
continue;
}
BitmapCharacter bc = _characterSet.GetCharacterByID((int)c);
// upper left
vertices.Add(new VertexPositionTexture(curX + bc.XOffset * scaleSize, curY + bc.YOffset * scaleSize, depth,
(float)bc.X / (float)_characterSet.Width, (float)bc.Y / (float)_characterSet.Height));
// upper right
vertices.Add(new VertexPositionTexture(curX + bc.Width * scaleSize + bc.XOffset * scaleSize, curY + bc.YOffset * scaleSize, depth,
(float)(bc.X + bc.Width) / (float)_characterSet.Width, (float)bc.Y / (float)_characterSet.Height));
// lower left
vertices.Add(new VertexPositionTexture(curX + bc.XOffset * scaleSize, curY + bc.Height * scaleSize + bc.YOffset * scaleSize, depth,
(float)bc.X / (float)_characterSet.Width, (float)(bc.Y + bc.Height) / (float)_characterSet.Height));
// lower right
vertices.Add(new VertexPositionTexture(curX + bc.Width * scaleSize + bc.XOffset * scaleSize, curY + bc.Height * scaleSize + bc.YOffset * scaleSize, depth,
(float)(bc.X + bc.Width) / (float)_characterSet.Width, (float)(bc.Y + bc.Height) / (float)_characterSet.Height));
indexList.Add(0);
indexList.Add(2);
indexList.Add(1);
indexList.Add(1);
indexList.Add(2);
indexList.Add(3);
curX += bc.XAdvance * scaleSize;
}
indices = indexList.ToArray();
return(vertices.ToArray());
}
public void DrawInto(SpriteBatch spriteBatch, string s, int x, int y, int size, Color4 color, float depth = 0f)
{
float curX = x;
float curY = y;
float scaleSize = size != 0 ? size / (float)_characterSet.RenderedSize : 1f;
foreach (char c in s)
{
if (c == '\n')
{
curY += _characterSet.LineHeight;
curX = x;
continue;
}
BitmapCharacter bc = _characterSet.GetCharacterByID((int)c);
spriteBatch.Draw(new Sprite(_texture, bc.X, bc.Y, bc.Width, bc.Height),
(int)(curX + bc.XOffset * scaleSize), (int)(curY + bc.YOffset * scaleSize), (int)(bc.Width * scaleSize), (int)(bc.Height * scaleSize), color);
curX += bc.XAdvance * scaleSize;
}
}
// load and parse a BMFont file
public void ParseFNTFile(string fntFile)
{
using (StreamReader stream = new StreamReader(fntFile))
{
string line;
char[] seperators = new char[] { ' ', '=' };
while ((line = stream.ReadLine()) != null)
{
string[] tokens = line.Split(seperators, StringSplitOptions.RemoveEmptyEntries);
if (tokens[0] == "info")
{
for (int i = 1; i < tokens.Length; i += 2)
{
if (tokens[i] == "size")
{
_characterSet.RenderedSize = int.Parse(tokens[i + 1]);
}
else if (tokens[i] == "padding")
{
int[] padding = tokens[i + 1].Split(new char[] { ',' }).Select(p => int.Parse(p)).ToArray();
_characterSet.PaddingUp = padding[0];
_characterSet.PaddingRight = padding[1];
_characterSet.PaddingDown = padding[2];
_characterSet.PaddingLeft = padding[3];
}
}
}
else if (tokens[0] == "common")
{
// BitmapCharacterSet fields
for (int i = 1; i < tokens.Length; i += 2)
{
if (tokens[i] == "lineHeight")
{
_characterSet.LineHeight = int.Parse(tokens[i + 1]);
}
else if (tokens[i] == "base")
{
_characterSet.Base = int.Parse(tokens[i + 1]);
}
else if (tokens[i] == "scaleW")
{
_characterSet.Width = int.Parse(tokens[i + 1]);
}
else if (tokens[i] == "scaleH")
{
_characterSet.Height = int.Parse(tokens[i + 1]);
}
}
}
else if (tokens[0] == "char")
{
// New Bitmap Character
BitmapCharacter character = new BitmapCharacter();
for (int i = 1; i < tokens.Length; i += 2)
{
if (tokens[i] == "id")
{
character.ID = int.Parse(tokens[i + 1]);
}
else if (tokens[i] == "x")
{
character.X = int.Parse(tokens[i + 1]);
}
else if (tokens[i] == "y")
{
character.Y = int.Parse(tokens[i + 1]);
}
else if (tokens[i] == "width")
{
character.Width = int.Parse(tokens[i + 1]);
}
else if (tokens[i] == "height")
{
character.Height = int.Parse(tokens[i + 1]);
}
else if (tokens[i] == "xoffset")
{
character.XOffset = int.Parse(tokens[i + 1]);
}
else if (tokens[i] == "yoffset")
{
character.YOffset = int.Parse(tokens[i + 1]);
}
else if (tokens[i] == "xadvance")
{
character.XAdvance = int.Parse(tokens[i + 1]);
}
}
_characterSet.Characters.Add(character);
}
else if (tokens[0] == "kerning")
{
int index = 0;
int second = 0;
int amount = 0;
for (int i = 1; i < tokens.Length; i += 2)
{
if (tokens[i] == "first")
{
index = int.Parse(tokens[i + 1]);
}
else if (tokens[i] == "second")
{
second = int.Parse(tokens[i + 1]);
}
else if (tokens[i] == "amount")
{
amount = int.Parse(tokens[i + 1]);
}
}
BitmapCharacter character = _characterSet.GetCharacterByID(index);
if (character != null)
{
character.Kerning[second] = amount;
}
}
}
}
}
public BitmapCharacter GetCharacterByID(int id)
{
BitmapCharacter character = Characters.FirstOrDefault(c => c.ID == id);
return(character);
}
