private CreateTextGeometryResult createTextGeometry(Vector3 position, string text, int startIndex, int length, int quadStartIndex, bool lineIsIssuedFromLineCut, float scaleFactor, float lineMaxWidth, bool preserveWords)
{
CreateTextGeometryResult result = new CreateTextGeometryResult();
if (lineIsIssuedFromLineCut)
{
// trim spaces at start
while ((startIndex < startIndex + length) && ((text[startIndex] == 0x20) || (text[startIndex] == 0xA0)))
{
startIndex++;
length--;
result.processedCharCount++;
result.spaceRemovedAtBeginning++;
}
}
// float pageWidth = font.getRegion ().getRegionWidth ();
// float pageHeight = font.getRegion ().getRegionHeight ();
// Glyph glyph = null;
CharacterInfo glyph;
// Font.fontChar letterStruct = null;
Vector3 letterPosition = new Vector3();
Vector2 letterDimension = new Vector2();
Vector2 letterTopLeftUV = new Vector2();
Vector2 letterTopRightUV = new Vector2();
Vector2 letterBottomLeftUV = new Vector2();
Vector2 letterBottomRightUV = new Vector2();
float advance = 0;
int lastSpaceIndex = startIndex;
for (int i = startIndex; i < startIndex + length; i++)
{
char charToRender = text[i];
if (charToRender == 0xA0)
{
charToRender = (char)0x20; // convert unbreakable space into space
}
if (!font.GetCharacterInfo(charToRender, out glyph))
{
#if UNITY_EDITOR
if (charToRender != 0x0D)
{
if (errorMessage == null)
{
errorMessage = "";
}
errorMessage += "Font character unknown : '" + charToRender + "' (0x" + ((int)charToRender).ToString("X2") + "), used in text \"" + text + "\"" + "\n";
// Debug.LogWarning ( "Font character unknown : '" + charToRender + "' (0x" + ( (int)charToRender ).ToString ( "X2" ) + "), used in text \"" + text + "\"" );
if (!font.GetCharacterInfo(' ', out glyph))
{
errorMessage += "Font default replacement character [space] not defined.";
}
// Debug.LogError ( "Font default replacement character [space] not defined." );
}
#endif
}
// glyph = font.getData ().getGlyph ( charToRender );
// if (glyph == null)
// // throw new RuntimeException ( "Character '" + charToRender + "' is not defined in font" );
// glyph = font.getData ().getGlyph ( ' ' );
int kerning = 0; // kerning to add
// if (i > 0)
// {
// char previousCharToRender = text.charAt ( i - 1 );
// if (previousCharToRender == 0xA0)
// previousCharToRender = (char) 0x20; // convert unbreakable space into space
//
// font.kerningTable.TryGetValue ( new KeyValuePair<char, char> ( previousCharToRender, charToRender ), out kerning );
// }
if (charToRender == 0x20)
{
lastSpaceIndex = i; // keep index of last space
//
// // space special case
// letterPosition.x = advance + kerning + glyph.minX;
// letterPosition.y = ( glyph.minY + glyph.maxY - glyph.minY );
// letterDimension.x = (float)glyph.maxX - glyph.minX;
// letterDimension.y = glyph.maxY - glyph.minY; // 0.0f;
// letterTopLeftUV = glyph.uvTopLeft;
// letterTopRightUV = glyph.uvTopRight;
// letterBottomLeftUV = glyph.uvBottomLeft;
// letterBottomRightUV = glyph.uvBottomRight;
}
// else
{
letterPosition.x = advance + kerning + glyph.minX;
letterPosition.y = (glyph.minY + glyph.maxY - glyph.minY);
letterDimension.x = glyph.maxX - glyph.minX;
letterDimension.y = -(glyph.maxY - glyph.minY);
letterTopLeftUV = glyph.uvTopLeft;
letterTopRightUV = glyph.uvTopRight;
letterBottomLeftUV = glyph.uvBottomLeft;
letterBottomRightUV = glyph.uvBottomRight;
}
letterPosition *= scaleFactor; // apply scaling
letterDimension *= scaleFactor;
// check if text is over the max line width
if (letterPosition.x + letterDimension.x > lineMaxWidth)
{
// generation is not finished, return count of processed characters
if (preserveWords && (lastSpaceIndex > startIndex))
{
// cut where the last space char was found, will truncate and discard all chars after
result.processedCharCount -= (i - lastSpaceIndex);
result.renderedCharCount -= (i - lastSpaceIndex);
break;
}
else
{
break; // line break in the middle of a word
}
}
letterPosition += position; // then offset by position
// if ( charToRender != 0x20 )
quadBatch.setQuad(quadStartIndex + result.renderedCharCount, letterPosition, letterDimension, letterTopLeftUV, letterTopRightUV, letterBottomLeftUV, letterBottomRightUV, color);
// if ( glyph.flipped )
// quadBatch.flipUvs ( quadStartIndex + result.renderedCharCount );
if (letterSpacingMode == LetterSpacingMode.Add)
{
advance += (glyph.advance + letterSpacing.x);
}
else
{
advance += letterSpacing.x;
}
result.processedCharCount++;
result.renderedCharCount++;
}
return(result);
}
