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stef's demo code

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git-svn-id: svn://svn.code.sf.net/p/actiongame/code/trunk/ac@1211 e016b1c5-ed68-44aa-a2f7-31cac88cffde
This commit is contained in:
driAn
2007-08-07 18:08:47 +00:00
parent 48ef16f292
commit d12cb198d0
4 changed files with 319 additions and 94 deletions
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source/src/protocol.cpp
+21
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@@ -74,6 +74,27 @@ void getstring(char *text, ucharbuf &p, int len)
while(*t++);
}
// machine independent float (single precision, 24 bit mantissa, 7 bit exponent, sign)
void putfloat(ucharbuf &p, float n)
{
int e;
double d = frexp((double) n, &e);
e += 64;
if (e < 0 || e > 127) e &= 0x7f; // hack: this float is not properly initialized...
int m = ((int) (d * (1<<24))) & ((1<<24)-1);
p.put(m); p.put(m>>8); p.put(m>>16); p.put(e | (d<0?0x80:0));
}
float getfloat(ucharbuf &p)
{
int m = p.get(); m |= p.get()<<8; m |= p.get()<<16;
int e = p.get();
m |= e & 0x80 ? (-1 ^ ((1<<24)-1)) : 0;
return (float) ldexp((double) m / (1<<24), (e & 0x7f) - 64);
}
void filtertext(char *dst, const char *src, bool whitespace, int len)
{
for(int c = *src; c; c = *++src)