- added conversion macros to convert floating point angles to angle_t, using xs_Float.h, and replaced all occurences in the code with them (let's hope I found everything.)

Converting a floating point value that is out of range for a signed integer will result in 0x80000000 with SSE math, which is used exclusively for this purpose on modern Visual C++ compilers, so this cannot be used anywhere.
On ARM there's problems with float to unsigned int conversions.

xs_Float does not depend on these

src/p_udmf.cpp

@@ -260,7 +260,7 @@ fixed_t UDMFParserBase::CheckFixed(const char *key)
 
 angle_t UDMFParserBase::CheckAngle(const char *key)
 {
-	return angle_t(CheckFloat(key) * ANGLE_90 / 90.);
+	return FLOAT2ANGLE(CheckFloat(key));
 }
 
 bool UDMFParserBase::CheckBool(const char *key)