# HG changeset patch
# User Mike Becker <universe@uap-core.de>
# Date 1784889882 -7200
# Node ID 5336e985bd6988215e4a18dce6015c9fadda6e92
# Parent  bad2d6d4b8619ce399c31f3f2331d880f8499b2f
rename INVALID_POSITION to PIECE_NOT_FOUND

because that is really what it is used for

diff -r bad2d6d4b861 -r 5336e985bd69 src/chess/rules.c
--- a/src/chess/rules.c	Fri Jul 24 12:42:57 2026 +0200
+++ b/src/chess/rules.c	Fri Jul 24 12:44:42 2026 +0200
@@ -350,7 +350,7 @@
     /* does piece exist */
     if ((msrc(gamestate->board, move)&(PIECE_MASK|COLOR_MASK))
            != (move->piece&(PIECE_MASK|COLOR_MASK))) {
-        return INVALID_POSITION;
+        return PIECE_NOT_FOUND;
     }
     
     /* can't capture own pieces */
@@ -683,7 +683,7 @@
     if (get_threats(gamestate, move->torow, move->tofile, color,
             threats, &threatcount)) {
         
-        int reason = INVALID_POSITION;
+        int reason = PIECE_NOT_FOUND;
         
         /* find threats for the specified position */
         for (uint8_t i = 0 ; i < threatcount ; i++) {            
@@ -718,7 +718,7 @@
         move->fromfile = threat->fromfile;
         return VALID_MOVE_SYNTAX;
     } else {
-        return INVALID_POSITION;
+        return PIECE_NOT_FOUND;
     }
 }
 
diff -r bad2d6d4b861 -r 5336e985bd69 src/chess/rules.h
--- a/src/chess/rules.h	Fri Jul 24 12:42:57 2026 +0200
+++ b/src/chess/rules.h	Fri Jul 24 12:44:42 2026 +0200
@@ -36,7 +36,7 @@
 #define VALID_MOVE_SYNTAX      0
 #define VALID_MOVE_SEMANTICS   0 /* use same code for a success */
 #define INVALID_MOVE_SYNTAX    1
-#define INVALID_POSITION       2
+#define PIECE_NOT_FOUND        2
 #define AMBIGUOUS_MOVE         3
 #define NEED_PROMOTION         4
 #define PIECE_PINNED           5
diff -r bad2d6d4b861 -r 5336e985bd69 src/main.c
--- a/src/main.c	Fri Jul 24 12:42:57 2026 +0200
+++ b/src/main.c	Fri Jul 24 12:44:42 2026 +0200
@@ -358,7 +358,7 @@
     case AMBIGUOUS_MOVE:
         printw("Ambiguous move - please specify the piece to move.");
         break;
-    case INVALID_POSITION:
+    case PIECE_NOT_FOUND:
         printw("No piece can be moved this way.");
         break;
     case NEED_PROMOTION: