check space helper added

[mc1516pa.git] / modelchecker / coord.h

diff --git a/modelchecker/coord.h b/modelchecker/coord.h
index 599b91b..bcab498 100644 (file)
--- a/modelchecker/coord.h
+++ b/modelchecker/coord.h
@@ -3,9 +3,26 @@
 
 #include "sokoban.h"
 
+typedef struct {
+       BDDSET varset;
+       int size;
+} variables;
+
+typedef struct
+{
+    BDD bdd;
+    variables vars;
+} state;
+
+typedef struct
+{
+    BDD bdd;
+    variables varset;
+} trans;
+
 typedef enum { LEFT, UP, RIGHT, DOWN } direction;
 
-BDD encode_screen(sokoban_screen *screen);
+state *encode_screen(sokoban_screen *screen);
 
 BDD encode_rel(sokoban_screen *screen);