rnd-19981101-1

[rocksndiamonds.git] / src / files.c

diff --git a/src/files.c b/src/files.c
index 0de480e07354cc44929749acb9861785716a9b21..31ef77420ab43b6313fa39ce2c5f80db45fb62dd 100644 (file)
--- a/src/files.c
+++ b/src/files.c
@@ -262,7 +262,7 @@ void LoadLevelTape(int level_nr)
 
     for(j=0; j<MAX_PLAYERS; j++)
     {
-      if (levelrec_10 && j>0)
+      if (levelrec_10 && j > 0)
       {
        tape.pos[i].action[j] = MV_NO_MOVING;
        continue;
@@ -272,6 +272,34 @@ void LoadLevelTape(int level_nr)
 
     tape.pos[i].delay = fgetc(file);
 
+    if (levelrec_10)
+    {
+      /* eliminate possible diagonal moves in old tapes */
+      /* this is only for backward compatibility */
+
+      byte joy_dir[4] = { JOY_LEFT, JOY_RIGHT, JOY_UP, JOY_DOWN };
+      byte action = tape.pos[i].action[0];
+      int k, num_moves = 0;
+
+      for (k=0; k<4; k++)
+      {
+       if (action & joy_dir[k])
+       {
+         tape.pos[i + num_moves].action[0] = joy_dir[k];
+         if (num_moves > 0)
+           tape.pos[i + num_moves].delay = 0;
+         num_moves++;
+       }
+      }
+
+      if (num_moves > 1)
+      {
+       num_moves--;
+       i += num_moves;
+       tape.length += num_moves;
+      }
+    }
+
     if (feof(file))
       break;
   }