what the hell was I thinking when I wrote this

vacuum_gambit.p8

@@ -191,7 +191,8 @@ end
 function ones(n)
  local ret = 0
  while n != 0 do
-  ret += 1
+  if (n&0x0.0001) ret += 1
+  n >>= 1
  end
  return ret
 end
@@ -1591,7 +1592,7 @@ function flotilla:update()
 
  -- distribute across box:
  -- x = [4, 100)
- -- y = [4, 80)
+ -- y = [4, 60)
  
  local x_interval,x_offset = 0,52
  if min_col < max_col then
@@ -1601,8 +1602,8 @@ function flotilla:update()
 
  local y_interval,y_offset=0,40
  if live_rows > 1 then
-  y_interval=76/(live_rows-1)
-  x_offset=4-y_interval
+  y_interval=56/(live_rows-1)
+  y_offset=4-y_interval
  end
 
  -- now assign target locations
@@ -1615,8 +1616,8 @@ function flotilla:update()
      real_row += 1
      row_alive = true
     end
-    ship.want_x = ship.col * x_interval - x_offset
-    ship.want_y = real_row * y_interval - y_offset
+    ship.want_x = ship.col * x_interval + x_offset
+    ship.want_y = real_row * y_interval + y_offset
    end -- ship updated
   end -- row updated
  end -- table updated