rnd-20001204-1-src

[rocksndiamonds.git] / src / libgame / types.h

diff --git a/src/libgame/types.h b/src/libgame/types.h
index e4aad2a3a5f6233600cc438f8bfac0896fd1b091..5722e05ddc3a512e24c1c2bfa167f0786494ee4c 100644 (file)
--- a/src/libgame/types.h
+++ b/src/libgame/types.h
@@ -1,14 +1,14 @@
 /***********************************************************
-*  Rocks'n'Diamonds -- McDuffin Strikes Back!              *
+* Artsoft Retro-Game Library                               *
 *----------------------------------------------------------*
-*  (c) 1995-98 Artsoft Entertainment                       *
-*              Holger Schemel                              *
-*              Oststrasse 11a                              *
-*              33604 Bielefeld                             *
-*              phone: ++49 +521 290471                     *
-*              email: aeglos@valinor.owl.de                *
+* (c) 1994-2000 Artsoft Entertainment                      *
+*               Holger Schemel                             *
+*               Detmolder Strasse 189                      *
+*               33604 Bielefeld                            *
+*               Germany                                    *
+*               e-mail: info@artsoft.org                   *
 *----------------------------------------------------------*
-*  types.h                                                 *
+* types.h                                                  *
 ***********************************************************/
 
 #ifndef 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 */