} //mxd
#endregion
#region ================== Constructor / Disposer
// Constructor
internal PatchStructure(TexturesParser parser)
{
// Initialize
alpha = 1.0f;
renderstyle = TexturePathRenderStyle.COPY; //mxd
blendstyle = TexturePathBlendStyle.NONE; //mxd
// There should be 3 tokens separated by 2 commas now:
// Name, Width, Height
// First token is the class name
parser.SkipWhitespace(true);
name = parser.StripTokenQuotes(parser.ReadToken(false)); //mxd. Don't skip newline
if (string.IsNullOrEmpty(name))
{
parser.ReportError("Expected patch name");
return;
}
//mxd. Skip what must be skipped
skip = (name.ToUpperInvariant() == IGNORE_SPRITE);
//mxd
name = name.Replace(Path.AltDirectorySeparatorChar, Path.DirectorySeparatorChar);
// Now we should find a comma
if (!parser.NextTokenIs(","))
{
return; //mxd
}
// Next is the patch width
parser.SkipWhitespace(true);
string tokenstr = parser.ReadToken();
if (string.IsNullOrEmpty(tokenstr) || !int.TryParse(tokenstr, NumberStyles.Integer, CultureInfo.InvariantCulture, out offsetx))
{
parser.ReportError("Expected offset in pixels");
return;
}
// Now we should find a comma again
if (!parser.NextTokenIs(","))
{
return; //mxd
}
// Next is the patch height
parser.SkipWhitespace(true);
tokenstr = parser.ReadToken();
if (string.IsNullOrEmpty(tokenstr) || !int.TryParse(tokenstr, NumberStyles.Integer, CultureInfo.InvariantCulture, out offsety))
{
parser.ReportError("Expected offset in pixels");
return;
}
// Next token is the beginning of the texture scope. If not, then the patch info ends here.
if (!parser.NextTokenIs("{", false))
{
return; //mxd
}
// Now parse the contents of texture structure
bool done = false; //mxd
while (!done && parser.SkipWhitespace(true))
{
string token = parser.ReadToken();
token = token.ToLowerInvariant();
switch (token)
{
case "flipx":
flipx = true;
break;
case "flipy":
flipy = true;
break;
case "alpha":
if (!ReadTokenFloat(parser, token, out alpha))
{
return;
}
alpha = General.Clamp(alpha, 0.0f, 1.0f);
break;
case "rotate":
if (!ReadTokenInt(parser, token, out rotation))
{
return;
}
rotation = rotation % 360; //Coalesce multiples
if (rotation < 0)
{
rotation += 360; //Force positive
}
if (rotation != 0 && rotation != 90 && rotation != 180 && rotation != 270)
{
parser.LogWarning("Unsupported rotation (" + rotation + ") in patch \"" + name + "\"");
rotation = 0;
}
break;
case "style": //mxd
string s;
if (!ReadTokenString(parser, token, out s))
{
return;
}
int index = Array.IndexOf(renderStyles, s.ToLowerInvariant());
renderstyle = index == -1 ? TexturePathRenderStyle.COPY : (TexturePathRenderStyle)index;
break;
case "blend": //mxd
parser.SkipWhitespace(false);
PixelColor color = new PixelColor();
// Blend <string color>[,<float alpha>] block?
token = parser.ReadToken(false);
if (!parser.ReadByte(token, ref color.r))
{
if (!ZDTextParser.GetColorFromString(token, ref color))
{
parser.ReportError("Unsupported patch blend definition");
return;
}
}
// That's Blend <int r>,<int g>,<int b>[,<float alpha>] block
else
{
if (!parser.SkipWhitespace(false) ||
!parser.NextTokenIs(",", false) || !parser.SkipWhitespace(false) || !parser.ReadByte(ref color.g) ||
!parser.NextTokenIs(",", false) || !parser.SkipWhitespace(false) || !parser.ReadByte(ref color.b))
{
parser.ReportError("Unsupported patch blend definition");
return;
}
}
// Alpha block?
float blendalpha = -1f;
parser.SkipWhitespace(false);
if (parser.NextTokenIs(",", false))
{
parser.SkipWhitespace(false);
if (!ReadTokenFloat(parser, token, out blendalpha))
{
parser.ReportError("Unsupported patch blend alpha value");
return;
}
}
// Blend may never be 0 when using the Tint effect
if (blendalpha > 0.0f)
{
color.a = (byte)General.Clamp((int)(blendalpha * 255), 1, 254);
blendstyle = TexturePathBlendStyle.TINT;
}
else if (blendalpha < 0.0f)
{
color.a = 255;
blendstyle = TexturePathBlendStyle.BLEND;
}
else
{
// Ignore Blend when alpha == 0
parser.LogWarning("Blend with zero alpha will be ignored by ZDoom");
break;
}
// Store the color
blendcolor = color;
break;
case "}":
// Patch scope ends here,
// break out of this parse loop
done = true;
break;
}
}
}