Improved the hashing routine.

1 files changed, 8 insertions, 3 deletions

diff --git a/dbox.c b/dbox.c
index 2827083..7f162a5 100644
--- a/dbox.c
+++ b/dbox.c
@@ -627,20 +627,25 @@ static hash_t ROL(hash_t p_val, int p_bits)
 }
 
 
-/* This is almost certainly rubbish
+/* This is slightly better than the previous hash
 */
 static hash_t CreateHash(const level_t *p_level, const state_t *p_state)
 {
+    map_t *m;
     hash_t hash;
     int f;
 
-    hash = ROL(p_state->player.x, p_state->player.y);
+    m = CreateMap(p_level, p_state);
+
+    hash = p_state->player.x * p_state->player.y;
 
     for(f = 0; f < p_level->no_boxes; f++)
     {
-	hash ^= ROL(p_state->box[f].x, p_state->box[f].y);
+	hash ^= ROL(m[f], f);
     }
 
+    free(m);
+
     return hash;
 }