Danpost do you mind explaining that bit of code?
DavidTshitenda wrote ...
2018/9/5
Back and forth movement
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No, you don't. You only get this error if your variable isn't static and you have to add a 'static' there to make it work. (Or use danpost's code.) Looks like I am still confused if the x-value should be changed (moving along the y-axis) or vice versa...
Explaining:
private int dirY = 1; // for the current direction ( 1 : up ; -1 : down)
private int distY = 0; // for steps taken in current direction
public void act()
{
setLocation(getX(), getY()+dirY); // move in direction
distY = (distY+1)%5; // increment step count (with wrap: zeroes when incremented to 5)
if (distY == 0) dirY = -dirY; // if 5 steps have been taken, reverse direction
}You need to login to post a reply.
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