X-Git-Url: https://git.artsoft.org/?p=rocksndiamonds.git;a=blobdiff_plain;f=src%2Flibgame%2Ftypes.h;h=bd32b02bdd7380110e9c3fa35ae1a5ca294cf1e9;hp=e4aad2a3a5f6233600cc438f8bfac0896fd1b091;hb=49221e59bff18cdfbef8c877b588280266ae5037;hpb=1465ca1ffdf2104d25b9a46ca9bf8a3f175403fd

diff --git a/src/libgame/types.h b/src/libgame/types.h
index e4aad2a3..bd32b02b 100644
--- a/src/libgame/types.h
+++ b/src/libgame/types.h
@@ -22,4 +22,20 @@ typedef unsigned char byte;
 #define TRUE		(!FALSE)
 #endif
 
+#ifndef MIN
+#define MIN(a,b) 	((a) < (b) ? (a) : (b))
+#endif
+
+#ifndef MAX
+#define MAX(a,b) 	((a) > (b) ? (a) : (b))
+#endif
+
+#ifndef ABS
+#define ABS(a)		((a) < 0 ? -(a) : (a))
+#endif
+
+#ifndef SIGN
+#define SIGN(a)		((a) < 0 ? -1 : ((a)>0 ? 1 : 0))
+#endif
+
 #endif /* TYPES_H */