UltimateZoneBuilder/Source/Core/ZDoom/PatchStructure.cs

310 lines
9.2 KiB
C#
Executable file

#region ================== Copyright (c) 2007 Pascal vd Heiden
/*
* Copyright (c) 2007 Pascal vd Heiden, www.codeimp.com
* This program is released under GNU General Public License
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#endregion
#region ================== Namespaces
using System;
using System.Globalization;
using System.IO;
using CodeImp.DoomBuilder.Data;
using CodeImp.DoomBuilder.Rendering;
#endregion
namespace CodeImp.DoomBuilder.ZDoom
{
public sealed class PatchStructure
{
#region ================== Constants
// Some odd things in ZDoom
private const string IGNORE_SPRITE = "TNT1A0";
#endregion
#region ================== Variables
// Declaration
private readonly string name;
private readonly int offsetx;
private readonly int offsety;
private readonly bool flipx;
private readonly bool flipy;
private readonly float alpha;
private readonly int rotation; //mxd
private readonly TexturePathRenderStyle renderstyle; //mxd
private readonly PixelColor blendcolor; //mxd
private readonly TexturePathBlendStyle blendstyle; //mxd
private static readonly string[] renderStyles = { "copy", "translucent", "add", "subtract", "reversesubtract", "modulate", "copyalpha", "copynewalpha", "overlay" }; //mxd
private readonly bool skip; //mxd
#endregion
#region ================== Properties
public string Name { get { return name; } }
public int OffsetX { get { return offsetx; } }
public int OffsetY { get { return offsety; } }
public bool FlipX { get { return flipx; } }
public bool FlipY { get { return flipy; } }
public float Alpha { get { return alpha; } }
public int Rotation { get { return rotation; } } //mxd
public TexturePathRenderStyle RenderStyle { get { return renderstyle; } } //mxd
public TexturePathBlendStyle BlendStyle { get { return blendstyle; } }
public PixelColor BlendColor { get { return blendcolor; } }//mxd
public bool Skip { get { return skip; } } //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);
if(!parser.ReadTextureName(out name, TextureNamespace.PATCH)) return; //mxd
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, out 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;
}
}
}
#endregion
#region ================== Methods
// This reads the next token and sets a floating point value, returns false when failed
private static bool ReadTokenFloat(TexturesParser parser, string propertyname, out float value)
{
// Next token is the property value to set
parser.SkipWhitespace(true);
string strvalue = parser.ReadToken();
if(!string.IsNullOrEmpty(strvalue))
{
// Try parsing as value
if(!float.TryParse(strvalue, NumberStyles.Float, CultureInfo.InvariantCulture, out value))
{
parser.ReportError("Expected numeric value for property \"" + propertyname + "\"");
return false;
}
// Success
return true;
}
// Can't find the property value!
parser.ReportError("Expected a value for property \"" + propertyname + "\"");
value = 0.0f;
return false;
}
// This reads the next token and sets an integral value, returns false when failed
private static bool ReadTokenInt(TexturesParser parser, string propertyname, out int value)
{
// Next token is the property value to set
parser.SkipWhitespace(true);
string strvalue = parser.ReadToken();
if(!string.IsNullOrEmpty(strvalue))
{
// Try parsing as value
if(!int.TryParse(strvalue, NumberStyles.Integer, CultureInfo.InvariantCulture, out value))
{
parser.ReportError("Expected integral value for property \"" + propertyname + "\"");
return false;
}
// Success
return true;
}
// Can't find the property value!
parser.ReportError("Expected a value for property \"" + propertyname + "\"");
value = 0;
return false;
}
//mxd. This reads the next token and sets a string value, returns false when failed
private static bool ReadTokenString(TexturesParser parser, string propertyname, out string value)
{
parser.SkipWhitespace(true);
value = parser.StripTokenQuotes(parser.ReadToken());
if(string.IsNullOrEmpty(value))
{
// Can't find the property value!
parser.ReportError("Expected a value for property \"" + propertyname + "\"");
return false;
}
return true;
}
#endregion
}
}