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- added range checks to UDMF coordinate fields.

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This commit is contained in:
Christoph Oelckers 2017-03-23 10:08:48 +01:00
parent e12f48699e
commit f31fb64750
2 changed files with 24 additions and 9 deletions
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32
src/p_udmf.cpp
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@ -254,6 +254,20 @@ double UDMFParserBase::CheckFloat(const char *key)
return sc.Float;
}
double UDMFParserBase::CheckCoordinate(const char *key)
{
if (sc.TokenType != TK_IntConst && sc.TokenType != TK_FloatConst)
{
sc.ScriptMessage("Floating point value expected for key '%s'", key);
}
if (sc.Float < -32768 || sc.Float > 32768)
{
sc.ScriptMessage("Value %f out of range for a coordinate '%s'. Valid range is ]-32768 .. 32768]", key);
sc.Float = clamp(sc.Float, -32768 + EQUAL_EPSILON*2, 32768 - EQUAL_EPSILON*2);
}
return sc.Float;
}
DAngle UDMFParserBase::CheckAngle(const char *key)
{
return DAngle(CheckFloat(key)).Normalized360();
@ -532,15 +546,15 @@ public:
break;
case NAME_X:
th->pos.X = CheckFloat(key);
th->pos.X = CheckCoordinate(key);
break;
case NAME_Y:
th->pos.Y = CheckFloat(key);
th->pos.Y = CheckCoordinate(key);
break;
case NAME_Height:
th->pos.Z = CheckFloat(key);
th->pos.Z = CheckCoordinate(key);
break;
case NAME_Angle:
@ -1370,11 +1384,11 @@ public:
switch(key)
{
case NAME_Heightfloor:
sec->SetPlaneTexZ(sector_t::floor, CheckFloat(key));
sec->SetPlaneTexZ(sector_t::floor, CheckCoordinate(key));
continue;
case NAME_Heightceiling:
sec->SetPlaneTexZ(sector_t::ceiling, CheckFloat(key));
sec->SetPlaneTexZ(sector_t::ceiling, CheckCoordinate(key));
continue;
case NAME_Texturefloor:
@ -1815,20 +1829,20 @@ public:
switch (key)
{
case NAME_X:
x = CheckFloat(key);
x = CheckCoordinate(key);
break;
case NAME_Y:
y = CheckFloat(key);
y = CheckCoordinate(key);
break;
case NAME_ZCeiling:
vd->zCeiling = CheckFloat(key);
vd->zCeiling = CheckCoordinate(key);
vd->flags |= VERTEXFLAG_ZCeilingEnabled;
break;
case NAME_ZFloor:
vd->zFloor = CheckFloat(key);
vd->zFloor = CheckCoordinate(key);
vd->flags |= VERTEXFLAG_ZFloorEnabled;
break;

1
src/p_udmf.h
View file

@ -16,6 +16,7 @@ protected:
FName ParseKey(bool checkblock = false, bool *isblock = NULL);
int CheckInt(const char *key);
double CheckFloat(const char *key);
double CheckCoordinate(const char *key);
DAngle CheckAngle(const char *key);
bool CheckBool(const char *key);
const char *CheckString(const char *key);