on the way to path extracting

[mc1516pa.git] / modelchecker / coord.h

diff --git a/modelchecker/coord.h b/modelchecker/coord.h
index 092bdb4..fb4a08b 100644 (file)
--- a/modelchecker/coord.h
+++ b/modelchecker/coord.h
@@ -13,12 +13,15 @@ typedef struct {
     variables vars;
 } state;
 
-typedef enum { ROOT, L, U, R, D } path_elt;
+typedef struct lurd {
+    char c;
+    struct lurd *next;
+} lurd_t;
 
 typedef struct {
     BDD bdd;
     variables vars;
-    path_elt origin;
+    lurd_t *lrd;
 } state_t;
 
 typedef struct trans {
@@ -44,6 +47,12 @@ int test_trans(state *s, trans_t *t);
 
 state *encode_goal(sokoban_screen *screen);
 
+int check_goal(BDD s, BDD g, BDDSET vars);
+
+int check_visited(BDD s, BDD v, BDDSET vars);
+
+lurd_t *lappend(lurd_t *l, char c);
+
 int test_relprod();
 
 #endif