(dchrstr, pchrstr, rptstr): New member d_uid, p_uid, r_uid.

(dchr, bigcity_dchr, pchr, rpt): Initialize it.
(dchr_ca, pchr_ca, rpt_ca): New selector uid for it.

include/news.h

@@ -54,6 +54,7 @@ struct nwsstr {
 #define	NUM_RPTS	2	/* number of story alternates */
 
 struct rptstr {
+    signed char r_uid;
     int r_good_will;		/* how "nice" the action is */
     int r_newspage;		/* which page this item belongs on */
     char *r_newstory[NUM_RPTS];	/* texts for fmt( */

include/product.h

@@ -43,6 +43,7 @@
 enum { MAXPRCON = 3 };
 
 struct pchrstr {
+    int p_uid;
     i_type p_ctype[MAXPRCON];	/* constituent types */
     u_short p_camt[MAXPRCON];	/* constituent amounts */
     i_type p_type;		/* product item type, or I_NONE if level */

include/sect.h

@@ -90,6 +90,7 @@ struct sctstr {
 };
 
 struct dchrstr {
+    unsigned char d_uid;
     int d_mnem;			/* map symbol */
     int d_prd;			/* product type */
     int d_mcst;			/* movement cost */