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Enabled parsing of NaN in UDMF so that the existing buggy maps load; made it throw exceptions when a NaN vertex is added to the map

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This commit is contained in:
ZZYZX 2018-03-25 01:40:31 +02:00
parent efd2ded0b3
commit 995e23f290
3 changed files with 27 additions and 4 deletions
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11
Source/Core/IO/UniversalParser.cs
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@ -620,8 +620,15 @@ namespace CodeImp.DoomBuilder.IO
cs.Add(f);
if(!matches.ContainsKey(data[line])) matches.Add(data[line], f);
break;
default:
case "nan":
// Add float value
UniversalEntry nan = new UniversalEntry(key.ToString().Trim().ToLowerInvariant(), float.NaN);
cs.Add(nan);
if (!matches.ContainsKey(data[line])) matches.Add(data[line], nan);
break;
default:
// Unknown keyword
RaiseError(line, ERROR_KEYWORDUNKNOWN + "\n\nUnrecognized token: \"" + val.ToString().Trim() + "\"");
break;

8
Source/Core/IO/UniversalStreamReader.cs
View file

@ -459,6 +459,14 @@ namespace CodeImp.DoomBuilder.IO
float x = GetCollectionEntry(c, "x", true, 0.0f, where);
float y = GetCollectionEntry(c, "y", true, 0.0f, where);
// [ZZ] Correct location if it's NaN. Note that there cannot be any meaningful value here, so I just reset it to 0,0 to avoid triggering the NaN exception
// TODO: remove once the cause of NaN is reported
if (float.IsNaN(x) || float.IsNaN(y))
{
x = y = 0f;
General.ErrorLogger.Add(ErrorType.Warning, string.Format("Vertex {0} has NaN coordinates, resetting to 0,0", i));
}
// Create new item
Vertex v = map.CreateVertex(new Vector2D(x, y));
if(v != null)

12
Source/Core/Map/Vertex.cs
View file

@ -93,8 +93,16 @@ namespace CodeImp.DoomBuilder.Map
// Constructor
internal Vertex(MapSet map, int listindex, Vector2D pos)
{
// Initialize
this.elementtype = MapElementType.VERTEX; //mxd
// [ZZ] Check coordinates
// Something in GZDB creates vertices with NaN coordinates. This needs to be found.
if (float.IsNaN(pos.x) ||
float.IsNaN(pos.y))
{
throw new Exception("Tried to create a vertex at coordinates NaN,NaN");
}
// Initialize
this.elementtype = MapElementType.VERTEX; //mxd
this.map = map;
this.linedefs = new LinkedList<Linedef>();
this.listindex = listindex;