}
} else if (horz || vert) {
switch (dir) {
case Canvas.UP:
case Canvas.LEFT:
if (location == LOWER) {
location = IN;
} else {
if (currentX > 0) {
currentX--;
repaint((currentX + 1) * dx, currentY * dy, dx, dy);
repaint(currentX * dx, currentY * dy, dx, dy);
} else if (currentY > 0) {
currentY--;
repaint(currentX * dx, (currentY + 1) * dy, dx, dy);
currentX = cols - 1;
repaint(currentX * dx, currentY * dy, dx, dy);
} else {
