calc_push op loop golf

Reorganizing conditionals saves tokens here.

chameleonic.p8

@@ -1690,17 +1690,11 @@ function rope:_calc_push(
 
  local ops2,blocked={},{}
  for o in all(ops) do
-  local mx,my,dmx,dmy=unpack(o)
-  if not level:mcoll(mx,my) then
-   -- great!
-  else
-   local crate=level:get_crate(mx,my)
-   if crate then
-    if not level:can_move(false,o,0,0) then
-     add(blocked,o)
-     break
-    end
-   else
+  local mx,my=unpack(o)
+  if level:mcoll(mx,my)
+   if not (level:get_crate(mx, my)) break
+   if not level:can_move(false,o,0,0) then
+    add(blocked,o)
     break
    end
    add(ops2,o)