X-Git-Url: https://jxself.org/git/?a=blobdiff_plain;f=advent.h;h=470e79ff5879d1a369dd30e308cf6f06a9d29789;hb=40ff648431dc1f2cb1e330d1f9a665c5f0a7cb68;hp=98a52d250e4f57376322a1ad7a365383f1e99d84;hpb=abf820bb5c8bcf51207ef941dbe00b7c425bf023;p=open-adventure.git

diff --git a/advent.h b/advent.h
index 98a52d2..470e79f 100644
--- a/advent.h
+++ b/advent.h
@@ -30,6 +30,10 @@
 #define STATE_FOUND	0	  // After discovered, before messed with
 #define STATE_IN_CAVITY	1	  // State value common to all gemstones
 
+/* Special fixed object-state values - integers > 0 are location */
+#define IS_FIXED -1
+#define IS_FREE 0
+
 /* Map a state property value to a negative range, where the object cannot be
  * picked up but the value can be recovered later.  Avoid colliding with -1,
  * which has its own meaning. */
@@ -238,6 +242,8 @@ extern int resume(void);
 extern int restore(FILE *);
 extern long initialise(void);
 extern int action(struct command_t *command);
+extern void state_change(long obj, long state);
+
 
 void bug(enum bugtype, const char *) __attribute__((__noreturn__));