int direction = MovDir[x][y];
int dx = (direction == MV_LEFT ? -1 : direction == MV_RIGHT ? +1 : 0);
int dy = (direction == MV_UP ? -1 : direction == MV_DOWN ? +1 : 0);
- int horiz_move = (dx!=0);
+ int horiz_move = (dx != 0);
int newx = x + dx, newy = y + dy;
int step = (horiz_move ? dx : dy) * TILEX / 8;