/// <summary>
/// Get the Buffer group where the sprite will be added, these compononents will be draw at the same time
/// </summary>
/// <param name="texture"></param>
/// <param name="sampler"></param>
/// <returns></returns>
public SpriteDrawInfo GetSpriteDrawInfo(SpriteTexture texture, SamplerState sampler, int drawGroupId, float textureRotation = 0)
{
SpriteDrawInfo spriteDrawInfo;
int textureHashCode = SpriteDrawInfo.ComputeHashCode(texture, sampler, drawGroupId, textureRotation);
if (_spritesByTexture.TryGetValue(textureHashCode, out spriteDrawInfo) == false)
{
//The sprite group for this texture is not existing => Create it !
if (textureRotation != 0f)
{
Matrix textureRotationMatrix = Matrix.Translation(-0.5f, -0.5f, 0) * Matrix.RotationYawPitchRoll(0f, 0f, textureRotation) * Matrix.Translation(0.5f, 0.5f, 0);
spriteDrawInfo = new SpriteDrawInfo(texture, sampler, textureRotationMatrix);
}
else
{
spriteDrawInfo = new SpriteDrawInfo(texture, sampler);
}
_spritesByTexture.Add(textureHashCode, spriteDrawInfo);
}
return(spriteDrawInfo);
}
public void DrawText(SpriteFont spriteFont, string text, ref Vector2 position, ref ByteColor color, float maxWidth = -1, int withCarret = -1, TextFontPosition textFontPosition = TextFontPosition.RelativeToFontUp, int drawGroupId = 0)
{
SpriteFont.WordInfo[] infos;
Vector2 textPosition = position;
if (textFontPosition == TextFontPosition.RelativeToFontBottom)
{
textPosition.Y -= spriteFont.CharHeight; //remove the char. height
}
bool isFirstChar = true;
int length = text.Length;
if (length == 0 && withCarret == -1)
{
return;
}
if (withCarret > -1)
{
_descCarret = spriteFont.CharDescriptors['|'];
}
withCarret--;
_spriteBuffer.AutoDepth -= 0.001f;
int numCharsToDraw = length;
//Get the SpriteDrawInfo group for this Font
SpriteDrawInfo spritesDrawFont = _spriteBuffer.GetSpriteDrawInfo(spriteFont.SpriteTexture, _spriteSamplerClamp, drawGroupId);
//If Carret at starup position
if (withCarret == -1)
{
spritesDrawFont.AddSprite(ref textPosition, ref _descCarret, true, 0, ref color, _spriteBuffer.AutoDepth); //Add Carret at startUp text Position
}
if (maxWidth == -1)
{
infos = new[] { new SpriteFont.WordInfo {
IndexStart = 0, Length = numCharsToDraw
} };
}
else
{
spriteFont.MeasureStringWords(text, maxWidth, out infos);
}
//For each Words
char previousChar = (char)0;
float currentLineWidth = 0;
foreach (SpriteFont.WordInfo info in infos)
{
// Check if we need to start a new line
if (info.Width == -1 ||
currentLineWidth + info.Width > maxWidth && info.Width < maxWidth)
{
InsertNewLine(ref textPosition, ref currentLineWidth, spriteFont, position.X);
//continue;
}
//For Each character in the word
for (int i = info.IndexStart; i < info.IndexStart + info.Length; i++)
{
char character = text[i];
if (character == '\r')
{
continue;
}
//Managing Space
if (character == ' ')
{
textPosition.X += spriteFont.SpaceWidth;
}
else
{
//Managing New Line
if (character == '\n')
{
InsertNewLine(ref textPosition, ref currentLineWidth, spriteFont, position.X);
}
else
{
//Apply Kerning
if (!isFirstChar && spriteFont.WithKerning)
{
int kerningAmount = spriteFont.GetKerning(previousChar, character);
textPosition.X += kerningAmount;
}
//All other characters goes here
RectangleF desc = spriteFont.CharDescriptors[character];
spritesDrawFont.AddSprite(ref textPosition, ref desc, true, 0, ref color, _spriteBuffer.AutoDepth); //Add Carret at startUp text Position
textPosition.X += desc.Width;
previousChar = character;
isFirstChar = false;
}
}
//Display carret ??
if (i == withCarret)
{
spritesDrawFont.AddSprite(ref textPosition, ref _descCarret, true, 0, ref color, _spriteBuffer.AutoDepth); //Add Carret at startUp text Position
}
}
//If in word max mode, then add a space after the word
if (maxWidth > -1)
{
//Display carret ??
if (info.Width > -1)
{
textPosition.X += spriteFont.SpaceWidth;
}
currentLineWidth += info.Width + spriteFont.SpaceWidth;
}
}
if (length > numCharsToDraw)
{
DrawText(spriteFont, text.Substring(numCharsToDraw - 1), ref textPosition, ref color, maxWidth, withCarret);
}
}