Make the "crystals' member into an enumeration.

[super-star-trek.git] / src / sst.h

diff --git a/src/sst.h b/src/sst.h
index f96ea03bbd1499f0e8f1c388b365911bf2af0395..a397ed25633ad63db6a05fad108280b8c47ae0b6 100644 (file)
--- a/src/sst.h
+++ b/src/sst.h
@@ -51,8 +51,7 @@ typedef struct {
     enum {M=0, N=1, O=2} pclass;
     int inhabited;     /* if NZ, an index into a name array */
 #define UNINHABITED    -1
-    int crystals; /* has crystals */
-#define MINED  -1      /* used to have crystals, but they were mined out */
+    enum {mined=-1, present=0, absent=1} crystals; /* has crystals */
     enum {unknown, known, shuttle_down} known;
 } planet;