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yyFont.js
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yyFont.js
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// **********************************************************************************************************************
//
// Copyright (c)2011, YoYo Games Ltd. All Rights reserved.
//
// File: yyFont.js
// Created: 24/02/2011
// Author: Mike
// Project: HTML5
// Description:
//
// Date Version BY Comment
// ----------------------------------------------------------------------------------------------------------------------
// 24/02/2011
//
// **********************************************************************************************************************
/** @constructor */
function FontEffectParams( )
{
this.enabled = false;
this.thicknessMod = 0.0;
this.coreCol = 0xffffffff;
this.coreAlpha = 1.0;
this.glowEnabled = false;
this.glowStart = 0.0;
this.glowEnd = 32.0;
this.glowCol = 0xffffffff;
this.glowAlpha = 1.0;
this.outlineEnabled = false;
this.outlineDist = 1.0;
this.outlineCol = 0xffffffff;
this.outlineAlpha = 1.0;
this.dropShadowEnabled = false;
this.shadowWidth = 0;
this.shadowOffsetX = 0.0;
this.shadowOffsetY = 0.0;
this.shadowCol = 0xff000000;
this.shadowAlpha = 1.0;
}
// #############################################################################################
/// Function:<summary>
/// Initialise a Font from storage
/// </summary>
///
/// In: <param name="_pStorage"></param>
// #############################################################################################
// @if feature("fonts")
/** @constructor */
function yyFont( )
{
this.__type = "[Font]";
this.runtime_created = false;
this.spritefont = false;
this.pName = "";
this.pFontName = "";
this.size = 12;
this.ascenderOffset = 0;
this.ascender = 0;
this.bold = false;
this.italic = false;
this.first = 32; // FIRST chartacter we support
this.last = 127; // LAST character we support
this.fontstyle = ""; // used in "web fonts" to hold the font style
this.prop = false; // used in a sprite font to indicate proportional.
this.m_sep = 0;
this.stringMap = null;
this.SpriteMapDictionary = null;
this.antialias = 0;
this.charset = 0;
this.scalex = 1;
this.scaley = 1;
this.growth = 0.0; // As per revision 28698
this.glyphs = null;
this.TPEntry = null;
this.pSprites = null;
this.spriteIndex = -1;
this.max_glyph_height = 0;
this.sdf = false;
this.sdfSpread = 0;
this.effect_params = new FontEffectParams();
}
yyFont.prototype.SetEffectParams = function (_pParamObj)
{
if ((_pParamObj == undefined) || (_pParamObj == null))
return;
var pVal = null;
pVal = variable_struct_get(_pParamObj, "thickness");
if ((pVal != undefined) && (pVal != null))
{
var thickness = yyGetReal(pVal);
thickness = thickness < -32.0 ? -32.0 : (thickness > 32.0 ? 32.0 : thickness);
this.effect_params.thicknessMod = thickness;
}
pVal = variable_struct_get(_pParamObj, "coreColour");
if ((pVal == undefined) || (pVal == null)) pVal = variable_struct_get(_pParamObj, "coreColor");
if ((pVal != undefined) && (pVal != null))
{
this.effect_params.coreCol = yyGetInt32(pVal);
}
pVal = variable_struct_get(_pParamObj, "coreAlpha");
if ((pVal != undefined) && (pVal != null))
{
var alpha = yyGetReal(pVal);
alpha = alpha < 0.0 ? 0.0 : (alpha > 1.0 ? 1.0 : alpha);
this.effect_params.coreAlpha = alpha;
}
pVal = variable_struct_get(_pParamObj, "glowEnable");
if ((pVal != undefined) && (pVal != null))
{
this.effect_params.glowEnabled = yyGetBool(pVal);
}
pVal = variable_struct_get(_pParamObj, "glowStart");
if ((pVal != undefined) && (pVal != null))
{
var distance = yyGetReal(pVal);
distance = distance < 0.0 ? 0.0 : (distance > 64.0 ? 64.0 : distance);
this.effect_params.glowStart = distance;
}
pVal = variable_struct_get(_pParamObj, "glowEnd");
if ((pVal != undefined) && (pVal != null))
{
var distance = yyGetReal(pVal);
distance = distance < 0.0 ? 0.0 : (distance > 64.0 ? 64.0 : distance);
this.effect_params.glowEnd = distance;
}
pVal = variable_struct_get(_pParamObj, "glowColour");
if ((pVal == undefined) || (pVal == null)) pVal = variable_struct_get(_pParamObj, "glowColor");
if ((pVal != undefined) && (pVal != null))
{
this.effect_params.glowCol = yyGetInt32(pVal);
}
pVal = variable_struct_get(_pParamObj, "glowAlpha");
if ((pVal != undefined) && (pVal != null))
{
var alpha = yyGetReal(pVal);
alpha = alpha < 0.0 ? 0.0 : (alpha > 1.0 ? 1.0 : alpha);
this.effect_params.glowAlpha = alpha;
}
pVal = variable_struct_get(_pParamObj, "outlineEnable");
if ((pVal != undefined) && (pVal != null))
{
this.effect_params.outlineEnabled = yyGetBool(pVal);
}
pVal = variable_struct_get(_pParamObj, "outlineDistance");
if ((pVal != undefined) && (pVal != null))
{
var distance = yyGetReal(pVal);
distance = distance < 0.0 ? 0.0 : (distance > 64.0 ? 64.0 : distance);
this.effect_params.outlineDist = distance;
}
pVal = variable_struct_get(_pParamObj, "outlineColour");
if ((pVal == undefined) || (pVal == null)) pVal = variable_struct_get(_pParamObj, "outlineColor");
if ((pVal != undefined) && (pVal != null))
{
this.effect_params.outlineCol = yyGetInt32(pVal);
}
pVal = variable_struct_get(_pParamObj, "outlineAlpha");
if ((pVal != undefined) && (pVal != null))
{
var alpha = yyGetReal(pVal);
alpha = alpha < 0.0 ? 0.0 : (alpha > 1.0 ? 1.0 : alpha);
this.effect_params.outlineAlpha = alpha;
}
pVal = variable_struct_get(_pParamObj, "dropShadowEnable");
if ((pVal != undefined) && (pVal != null))
{
this.effect_params.dropShadowEnabled = yyGetBool(pVal);
}
pVal = variable_struct_get(_pParamObj, "dropShadowSoftness");
if ((pVal != undefined) && (pVal != null))
{
var width = yyGetReal(pVal);
width = width < 0.0 ? 0.0 : (width > 64.0 ? 64.0 : width);
this.effect_params.shadowWidth = width;
}
pVal = variable_struct_get(_pParamObj, "dropShadowOffsetX");
if ((pVal != undefined) && (pVal != null))
{
var offset = yyGetReal(pVal);
this.effect_params.shadowOffsetX = offset;
}
pVal = variable_struct_get(_pParamObj, "dropShadowOffsetY");
if ((pVal != undefined) && (pVal != null))
{
var offset = yyGetReal(pVal);
this.effect_params.shadowOffsetY = offset;
}
pVal = variable_struct_get(_pParamObj, "dropShadowColour");
if ((pVal == undefined) || (pVal == null)) pVal = variable_struct_get(_pParamObj, "dropShadowColor");
if ((pVal != undefined) && (pVal != null))
{
this.effect_params.shadowCol = yyGetInt32(pVal);
}
pVal = variable_struct_get(_pParamObj, "dropShadowAlpha");
if ((pVal != undefined) && (pVal != null))
{
var alpha = yyGetReal(pVal);
alpha = alpha < 0.0 ? 0.0 : (alpha > 1.0 ? 1.0 : alpha);
this.effect_params.shadowAlpha = alpha;
}
};
yyFont.prototype.GetEffectParams = function()
{
var pParamObj = new GMLObject();
variable_struct_set(pParamObj, "thickness", this.effect_params.thicknessMod);
variable_struct_set(pParamObj, "coreColour", this.effect_params.coreCol);
variable_struct_set(pParamObj, "coreAlpha", this.effect_params.coreAlpha);
variable_struct_set(pParamObj, "glowEnable", this.effect_params.glowEnabled);
variable_struct_set(pParamObj, "glowStart", this.effect_params.glowStart);
variable_struct_set(pParamObj, "glowEnd", this.effect_params.glowEnd);
variable_struct_set(pParamObj, "glowColour", this.effect_params.glowCol);
variable_struct_set(pParamObj, "glowAlpha", this.effect_params.glowAlpha);
variable_struct_set(pParamObj, "outlineEnable", this.effect_params.outlineEnabled);
variable_struct_set(pParamObj, "outlineDistance", this.effect_params.outlineDist);
variable_struct_set(pParamObj, "outlineColour", this.effect_params.outlineCol);
variable_struct_set(pParamObj, "outlineAlpha", this.effect_params.outlineAlpha);
variable_struct_set(pParamObj, "dropShadowEnable", this.effect_params.dropShadowEnabled);
variable_struct_set(pParamObj, "dropShadowSoftness", this.effect_params.shadowWidth);
variable_struct_set(pParamObj, "dropShadowOffsetX", this.effect_params.shadowOffsetX);
variable_struct_set(pParamObj, "dropShadowOffsetY", this.effect_params.shadowOffsetY);
variable_struct_set(pParamObj, "dropShadowColour", this.effect_params.shadowCol);
variable_struct_set(pParamObj, "dropShadowAlpha", this.effect_params.shadowAlpha);
return pParamObj;
};
// #############################################################################################
/// Function: <summary>
/// Create a font from storage
/// </summary>
// #############################################################################################
yyFont.prototype.CreateFromStorage = function (_pStorage) {
this.spriteIndex = -1;
this.SpriteMapDictionary = null;
this.pName = _pStorage.pName;
this.pFontName = _pStorage.fontname;
this.size = _pStorage.size;
this.bold = _pStorage.bold;
this.italic = _pStorage.italic;
this.first = _pStorage.first & 0xffff;
this.runtime_created = false;
this.ascenderOffset = _pStorage.ascenderOffset;
this.ascender = _pStorage.ascender;
this.sdfSpread = _pStorage.sdfSpread;
this.max_glyph_height = _pStorage.lineHeight;
this.sdf = this.sdfSpread > 0 ? true : false;
this.antialias = 0;
this.charset = 0;
if (((_pStorage.first >> 16) & 0xff) !== 0) this.charset = (_pStorage.first >> 16) & 0xff;
if (((_pStorage.first >> 24) & 0xff) !== 0) this.antialias = ((_pStorage.first >> 24) & 0xff) - 1;
this.last = _pStorage.last;
this.scalex = _pStorage.scaleX;
this.scaley = _pStorage.scaleY;
this.glyphs = [];
var f = 99999999;
var l = -99999999;
var maxHeight = 0;
for (var glyph = 0; glyph < _pStorage.glyphs.length; glyph++)
{
var index = -2;
var pGlyph = _pStorage.glyphs[glyph];
if(pGlyph.c!=undefined) index = pGlyph.c.charCodeAt(0);
else if (pGlyph.i!=undefined) index = pGlyph.i;
this.glyphs[index] = pGlyph;
if( index<f ) f = index;
if( index>l ) l = index;
if (pGlyph.h > maxHeight) maxHeight = pGlyph.h;
}
if (this.max_glyph_height == 0)
{
this.max_glyph_height = maxHeight;
}
this.first = f;
this.last = l;
this.TPEntry = Graphics_GetTextureEntry(_pStorage.TPageEntry);
};
// #############################################################################################
/// Function: <summary>
/// Setup the font as a sprite font
/// </summary>
// #############################################################################################
yyFont.prototype.CreateFromSprite = function (_spr, _first, _prop, _sep, _stringmap) {
this.spriteIndex = _spr;
this.SpriteMapDictionary = null;
this.runtime_created = true;
this.pSprites = g_pSpriteManager.Get(_spr);
this.pName = "sprite_font: " + this.pSprites.pName;
this.pFontName = "spritefont";
this.size = _spr.width;
this.bold = false;
this.italic = false;
this.first = _first;
this.stringMap = _stringmap;
this.spritefont = true;
this.prop = _prop;
this.last = _first + this.pSprites.numb;
this.m_sep = _sep;
this.sdf = false;
this.sdfSpread = 0;
this.antialias = 0;
this.charset =10;
this.scalex = 1;
this.scaley = 1;
this.growth = 0.5;
// No longer need these...
this.glyphs = null;
this.TPEntry = null;
// Work out the size of spaces for sprite fonts where one hasn't been defined
this.biggestShift = 0;
for (var i = 0; i < this.pSprites.ppTPE.length; i++) {
var pTPE = this.pSprites.ppTPE[i];
if (this.prop) {
this.biggestShift = yymax(this.biggestShift, pTPE.CropWidth);
}
else {
this.biggestShift = yymax(this.biggestShift, pTPE.ow);
}
}
// create a map conversion dictionary
this.SpriteMapDictionary = [];
if (_stringmap) {
var minv = 9999999999;
var maxv = -1;
for (var i = 0; i < _stringmap.length; i++) {
var c = _stringmap.charCodeAt(i);
if (c < minv) minv = c;
if (c > maxv) maxv = c;
this.SpriteMapDictionary[c] = i;
}
this.first = minv;
this.last = maxv;
} else {
// ALWAYS remap
for (var i = _first; i < (_first + this.pSprites.numb) ; i++) {
this.SpriteMapDictionary[i] = i - _first;
}
}
this.SetSpriteFontHeight();
};
// #############################################################################################
/// Function:<summary>
/// Works out the maximum height for a sprite font
/// </summary>
// #############################################################################################
yyFont.prototype.SetSpriteFontHeight = function () {
var height = 0;
for (var n = 0; n < this.pSprites.ppTPE.length; n++) {
var pTPE = this.pSprites.ppTPE[n];
height = yymax(height, pTPE.oh);
}
this.size = height;
};
// #############################################################################################
/// Function:<summary>
/// Returns the height of the text
/// </summary>
///
/// In: <param name="str">String to get height of</param>
/// Out: <returns>
/// Height of the string provided
/// </returns>
// #############################################################################################
yyFont.prototype.TextHeight = function (_str) {
if ((!_str) || (0 === _str.length)) return 0;
if (this.runtime_created) {
return this.size * this.scalex;
}
else {
return this.max_glyph_height * this.scalex;
}
};
// #############################################################################################
/// Function:<summary>
/// Returns the width of the text
/// </summary>
///
/// In: <param name="str">String to get width of</param>
/// In: <param name="prepared">If set, the input is assumed to be already mapped and containing a single line</param>
/// Out: <returns>
/// Width of the text string provided
/// </returns>
// #############################################################################################
yyFont.prototype.TextWidth = function (_str, _prepared) {
if ((!_str) || (0 === _str.length)) return 0;
// Split the string into lines and return the longest line's worth
var lines;
if (_prepared) {
lines = [_str];
} else {
lines = g_pFontManager.Split_TextBlock(_str, -1, this);
}
if (this.runtime_created) {
if (this.spritefont) {
var Result = 0;
for (var i = 0; i < lines.length; i++) {
var lineLength = 0;
var line = lines[i];
for (var j = 0; j < line.length; j++) {
lineLength += this.GetShift(line.charCodeAt(j));
}
Result = yymax(Result, lineLength);
}
return Result;
}
else {
var Result = 0;
graphics.font = this.fontstyle;
if(graphics.measureText)
{
for (var i = 0; i < lines.length; i++)
{
var metrics = graphics.measureText(lines[i]);
Result = yymax(Result, metrics.width);
}
}
return Result;
}
}
else {
var Result = 0;
for (var i = 0; i < lines.length; i++) {
var lineLength = 0;
var line = lines[i];
for (var j = 0; j < line.length; j++) {
var c = line.charCodeAt(j);
var pGlyph = this.glyphs[c];
if (!pGlyph) {
pGlyph = this.glyphs[this.first];
}
lineLength += pGlyph.shift * this.scalex;
}
Result = yymax(Result, lineLength);
}
return Result;
}
};
// #############################################################################################
/// Function:<summary>
/// Returns the width of the text, only checks _numChars characters. Also only works
/// with single-line text
/// </summary>
///
/// In: <param name="_str">String to get width of</param>
/// In: <param name="_start">Character to start with</param>
/// In: <param name="_numChars">The number of chars to check</param>
/// In: <param name="_charSpacing">Any additional spacing between characters</param>
/// Out: <returns>
/// Width of the text string provided
/// </returns>
// #############################################################################################
yyFont.prototype.TextWidthN = function (_str, _start, _numChars, _charSpacing)
{
_start = yymin(_str.length, _start);
var end = yymin(_str.length, (_start + _numChars));
var charstocheck = end - _start;
if ((!_str) || (_start >= end))
return 0;
if (this.runtime_created)
{
if (this.spritefont)
{
var lineLength = 0;
for (var j = _start; j < end; j++)
{
lineLength += this.GetShift(_str.charCodeAt(j));
}
linelength += charstocheck * _charSpacing;
return lineLength;
}
else
{
var lineLength = 0;
graphics.font = this.fontstyle;
if(graphics.measureText)
{
var stringtocheck = _str.substring(_start, end);
lineLength = graphics.measureText(stringtocheck);
lineLength += charstocheck * _charSpacing;
}
return lineLength;
}
}
else
{
var lineLength = 0;
for (var j = _start; j < end; j++)
{
var c = _str.charCodeAt(j);
var pGlyph = this.glyphs[c];
if (!pGlyph)
{
pGlyph = this.glyphs[this.first];
}
lineLength += pGlyph.shift * this.scalex;
}
lineLength += charstocheck * _charSpacing;
return lineLength;
}
};
// #############################################################################################
/// Function:<summary>
/// Returns the shift for the character
/// </summary>
///
/// In: <param name="ch">character to get shift(Kerning?) of.</param>
/// Out: <returns>
/// SHIFT (kerning?) of the character
/// </returns>
// #############################################################################################
yyFont.prototype.GetShift = function (ch) {
if (this.runtime_created)
{
if (this.spritefont)
{
var Result = this.m_sep;
if ((ch >= this.first) && (ch <= this.last)) {
var ch2 = this.SpriteMapDictionary[ch];
var pTPE = this.pSprites.ppTPE[ch2];
if (!pTPE){
result = this.biggestShift;
}else if (this.prop) {
Result += pTPE.CropWidth;
}
else {
Result += pTPE.ow;
}
}
else if (ch === 32) {
Result += this.biggestShift;
}
return Result;
}
else {
graphics.font = this.fontstyle;
if (graphics.measureText) { // not on WebGL... not sure it should really get here though
var metrics = graphics.measureText(String.fromCharCode(ch));
return metrics.width;
}
return 0;
}
}
var pGlyph = this.glyphs[ch];
if (pGlyph) // get the character shift
{
return pGlyph.shift * this.scalex;
}
else if (0x20 >= this.first && 0x20 <= this.last) // make sure we HAVE a space in the character set
{
// Try and use SPACE if we don't have the letter
return this.glyphs[0x20].shift * this.scalex;
}
else
{
// failing all that, just use the 1st character in the font
return this.glyphs[this.first].shift * this.scalex;
}
};
function getKerningInfo( ch, pGlyph)
{
var ret = undefined;
var low = 0, high = (pGlyph.kerning.length/2)-1, midpoint=0;
while( low <= high) {
midpoint = low + ~~((high -low)/2);
var other = pGlyph.kerning[ midpoint*2 ];
if (ch == other) {
ret = pGlyph.kerning[ (midpoint*2) + 1];
break;
} // end if
else
if (ch < other)
high = midpoint - 1;
else
low = midpoint + 1;
} // end while
return ret;
}
// #############################################################################################
/// Function:<summary>
/// Draw a string in the indicated color at the indicated place
/// </summary>
///
/// In: <param name="_x">X coordinate to render at</param>
/// <param name="_y">Y coordinate to render at</param>
/// <param name="_pStr">string to draw</param>
/// <param name="_col">Colour to render with</param>
/// <param name="_alpha">Alpha value to draw with</param>
/// Out: <returns>
///
/// </returns>
// #############################################################################################
yyFont.prototype.Draw_String_GL_Full = function (_x, _y, _pStr, _xscale, _yscale, _angle, _col1, _col2,_col3,_col4, _charSpacing, _wordSpacing) //, _alpha) {
{
// @if feature("gl")
var TP = this.TPEntry; //g_Textures[this.TPEntry.tp];
if (!TP.texture.complete) return; // if texture hasn't loaded, return...
var len = _pStr.length;
var charSpacing = 0.0;
var wordSpacing = 0.0;
if (_charSpacing !== undefined)
{
charSpacing = _charSpacing;
}
if (_wordSpacing !== undefined)
{
wordSpacing = _wordSpacing;
}
var pPrev = null;
for (var i = 0; i < len; i++)
{
var ch = _pStr.charCodeAt(i);
var pGlyph = this.glyphs[ch];
// Native completly ignores characters it doesn't know about
if (pGlyph) {
if ((pPrev != null) && (pGlyph.kerning != undefined)) {
var kerning = getKerningInfo( pPrev.i, pGlyph);
if (kerning != undefined) {
_x += _xscale * this.scalex * kerning;
} // end if
} // end if
pPrev = pGlyph;
if ((pGlyph.w * pGlyph.h) > 0) // don't draw zero-size glyphs (like spaces)
{
var xs = pGlyph.x;
var ys = pGlyph.y;
var ws = pGlyph.w;
var hs = pGlyph.h;
// use a matrix to rotate and position it..
if (Math.abs(_angle) < 0.001) {
graphics._drawImage(TP, xs + TP.x, ys + TP.y, ws, hs, _x + (pGlyph.offset * _xscale), _y, ws * this.scalex * _xscale, hs * this.scaley * _yscale, _col1, _col2, _col3, _col4);
}
else {
graphics._drawImage(TP, xs + TP.x, ys + TP.y, ws, hs, _x + (pGlyph.offset * _xscale), _y, ws, hs, _col1, _col2, _col3, _col4);
}
}
_x += _xscale * this.scalex * this.GetShift(ch);
_x += charSpacing;
if (_pStr[i] == " ")
_x += wordSpacing;
}
}
//if (Math.abs(_angle) > 0.001) Graphics_SetTransform();
// @endif
};
// #############################################################################################
/// Function:<summary>
/// Build a world matrix for rotating text (webgl)
/// </summary>
// #############################################################################################
yyFont.prototype.BuildWorldMatrix = function(_x, _y, _angle) {
// I appreciate this is probably a bit heavy handed, but sod it
var mt = new Matrix();
mt.SetTranslation(-_x, -_y, 0);
var mr = new Matrix();
mr.SetZRotation(_angle);
var mi = new Matrix();
mi.Multiply(mt, mr);
mt.SetTranslation(_x, _y, 0);
var mf = new Matrix();
mf.Multiply(mi, mt);
return mf;
};
// #############################################################################################
/// Function:<summary>
/// Draw a string in the indicated color at the indicated place for WebGL
/// </summary>
// #############################################################################################
yyFont.prototype.Draw_String_GL = function (_x, _y, _pStr, _xscale, _yscale, _angle, _col1, _col2,_col3,_col4, _charSpacing, _wordSpacing, _pFontParams) //, _alpha)
{
// @if feature("gl")
if( this.runtime_created)
{
//original
this.Draw_String_GL_Full(_x, _y, _pStr, _xscale, _yscale, _angle, _col1, _col2, _col3, _col4, _charSpacing, _wordSpacing);
}
var charSpacing = 0.0;
var wordSpacing = 0.0;
if (_charSpacing !== undefined)
{
charSpacing = _charSpacing;
}
if (_wordSpacing !== undefined)
{
wordSpacing = _wordSpacing;
}
//tizen optimised
var cached_image;
var TP = this.TPEntry;
if (!TP.texture.complete) return; // if texture hasn't loaded, return...
var len = _pStr.length;
if (GR_MarkVertCorners) {
_col1 &= 0xfffefffe; // clear out bits, ready for "marking"
_col2 &= 0xfffefffe; //
_col3 &= 0xfffefffe; //
_col4 &= 0xfffefffe; //
_col2 |= 0x00000001; // Mark which corner we're in!
_col3 |= 0x00010000;
_col4 |= 0x00010001;
}
//inline WebGL_drawImage_Replacement_RELEASE, allocate all required verts at once
var pBuff, pCoords, pColours, pUVs;
if (!TP.texture.webgl_textureid) WebGL_BindTexture(TP);
//push on the transform if necessary
var worldMatrix;
if (Math.abs(_angle) > 0.001) {
worldMatrix = WebGL_GetMatrix(MATRIX_WORLD);
WebGL_SetMatrix(MATRIX_WORLD, this.BuildWorldMatrix(_x, _y, _angle));
}
var spreadoffset = 0;
if (this.sdf)
{
spreadoffset = this.sdfSpread;
}
var numVerts = len * 6;
pBuff = g_webGL.AllocVerts(yyGL.PRIM_TRIANGLE, TP.texture.webgl_textureid, g_webGL.VERTEX_FORMAT_2D, numVerts);
var stride = pBuff.GetStride() >> 2; // built-in vbuffer arrays have 4 byte long types
var index = stride * pBuff.Current;
pBuff.Current += numVerts;
var v0 = index,
v1 = v0 + stride,
v2 = v1 + stride,
v3 = v2 + stride,
v4 = v3 + stride,
v5 = v4 + stride;
pCoords = pBuff.Coords;
pColours = pBuff.Colours;
pUVs = pBuff.UVs;
var scaleX, scaleY;
//if (Math.abs(_angle) < 0.001)
//{
scaleX = this.scalex * _xscale;
scaleY = this.scaley * _yscale;
//}
//else {
//scaleX = this.scalex * _xscale;
//scaleY = this.scaley * _yscale;
//}
var skip = 0;
var s_growth = this.growth,
invWidth = 1.0 / TP.texture.width,
invHeight = 1.0 / TP.texture.height;
var bLerp=false;
if ( (_col1 != _col2) || (_col3 != _col4) ) {
var strWidth = this.TextWidth(_pStr, true);
var invStrWidth = 1/strWidth;
var alpha = _col1 & 0xff000000;
bLerp = true;
}
var pPrev = null;
for (var i = 0; i < len; i++)
{
var ch = _pStr.charCodeAt(i);
var pGlyph = this.glyphs[ch];
// Native completely ignores Glyphs it doesn't know about - so do the same
if (pGlyph) {
if ((pPrev != null) && (pGlyph.kerning != undefined)) {
var kerning = getKerningInfo( pPrev.i, pGlyph);
if (kerning != undefined) {
_x += scaleX * kerning;
} // end if
} // end if
pPrev = pGlyph;
if ((pGlyph.w * pGlyph.h) > 0) // don't draw zero-size glyphs (like spaces)
{
var ws = pGlyph.w + 2,
hs = pGlyph.h + 2;
var x = _x + (((pGlyph.offset - 1) - spreadoffset) * _xscale);
var y = _y - ((1 + spreadoffset) * _yscale);
pCoords[v0 + 0] = pCoords[v4 + 0] = pCoords[v5 + 0] = x - s_growth;
pCoords[v0 + 1] = pCoords[v1 + 1] = pCoords[v5 + 1] = y - s_growth;
pCoords[v1 + 0] = pCoords[v2 + 0] = pCoords[v3 + 0] = x + s_growth + (ws * scaleX);
pCoords[v2 + 1] = pCoords[v3 + 1] = pCoords[v4 + 1] = y + s_growth + (hs * scaleY);
pCoords[v0 + 2] = pCoords[v1 + 2] = pCoords[v2 + 2] = pCoords[v3 + 2] = pCoords[v4 + 2] = pCoords[v5 + 2] = GR_Depth;
var xs = pGlyph.x - 1,
ys = pGlyph.y - 1;
pUVs[v0 + 0] = pUVs[v4 + 0] = pUVs[v5 + 0] = (TP.x + xs - s_growth) * invWidth;
pUVs[v0 + 1] = pUVs[v1 + 1] = pUVs[v5 + 1] = (TP.y + ys - s_growth) * invHeight;
pUVs[v1 + 0] = pUVs[v2 + 0] = pUVs[v3 + 0] = (TP.x + xs + ws + s_growth) * invWidth;
pUVs[v2 + 1] = pUVs[v3 + 1] = pUVs[v4 + 1] = (TP.y + ys + hs + s_growth) * invHeight;
//#0029653 interpolate corner colours for each character vertex
if (bLerp) {
var x0 = pCoords[index];
var r1 = Math.min( Math.abs((pCoords[v0] - x0)) * invStrWidth, 1);
var r2 = Math.min( Math.abs((pCoords[v1] - x0)) * invStrWidth, 1);
var c1 = merge_color(_col1, _col2, r1) | alpha;
var c2 = merge_color(_col1, _col2, r2) | alpha;
var c3 = merge_color(_col4, _col3, r2) | alpha;
var c4 = merge_color(_col4, _col3, r1) | alpha;
pColours[v0] = pColours[v5] = c1;
pColours[v1] = c2;
pColours[v2] = pColours[v3] = c3;
pColours[v4] = c4;
} else {
pColours[v0] = pColours[v5] = _col1;
pColours[v1] = _col2;
pColours[v2] = pColours[v3] = _col3;
pColours[v4] = _col4;
}
v0 += (stride * 6);
v1 += (stride * 6);
v2 += (stride * 6);
v3 += (stride * 6);
v4 += (stride * 6);
v5 += (stride * 6);
}
else
{
skip++; // need to increment this so we can reclaim the vertex space after
}
_x += scaleX * pGlyph.shift;
} else {
skip++; // keep track of characters we DONT render
}
_x += charSpacing;
if (_pStr[i] == " ")
_x += wordSpacing;
}
pBuff.Current -= skip*6; // claim back unused space
// Reset the world matrix
if (worldMatrix != undefined) {
WebGL_SetMatrix(MATRIX_WORLD, worldMatrix);
}
// @endif
};
// #############################################################################################
/// Function:<summary>
/// Draw a string in the indicated color at the indicated place
/// </summary>
///
/// In: <param name="_x">X coordinate to render at</param>
/// <param name="_y">Y coordinate to render at</param>
/// <param name="_pStr">string to draw</param>
/// <param name="_col">Colour to render with</param>
/// <param name="_alpha">Alpha value to draw with</param>
/// Out: <returns>
///
/// </returns>
// #############################################################################################
yyFont.prototype.Draw_String = function (_x, _y, _pStr, _xscale, _yscale, _angle, _col1, _col2, _col3, _col4, _charSpacing, _wordSpacing) //, _alpha) {
{
// @if feature("2d")
var cached_image = null;
var ch;
var TP = g_Textures[this.TPEntry.tp];
if (!TP.complete) return; // if texture hasn't loaded, return...
var charSpacing = 0.0;
var wordSpacing = 0.0;
if (_charSpacing !== undefined)
{
charSpacing = _charSpacing;
}
if (_wordSpacing !== undefined)
{
wordSpacing = _wordSpacing;
}
var la = graphics.globalAlpha;
graphics.globalAlpha = ((_col1 >> 24)&0xff) / 255.0; // _alpha;
var len = _pStr.length;
// If coloured, then cache a "colourised" version
_col1 = _col1 & 0xffffff;
// Don't use a transform matrix unless we have an angle to use
_angle = RAD(_angle);
var pPrev = null;
if (Math.abs(_angle) > 0.00001)
{
Graphics_PushTransform(_x, _y, this.scalex * _xscale, this.scaley * _yscale, -_angle);
_x = 0;
_y = 0;
if (_col1 != 0xffffff)
{