Moving in the maze

seb646

I just watched Dan's maze tutorial on coding train and I'd like to figure out how to get the highlighter moving with the arrow keys. I'm getting kinda stuck because I'm not sure how I can add in the parameters after it creates the maze pattern. Any help would be great!

http://alpha.editor.p5js.org/seb646/sketches/SkbygZYbW

NoName

I have this :

        if(keyIsPressed){
                if(keyCode == UP_ARROW){
                     y = y-w;
                     noStroke();
                     fill(random(0,255),random(0,255),random(0,255));
                     rect(x, y, w, w);
                }
                    if(keyCode == DOWN_ARROW){
                    y = y+w;
                  noStroke();
                    fill(random(0,255),random(0,255),random(0,255));
                    rect(x, y, w, w);
                }
                    if(keyCode == LEFT_ARROW){
                    x = x-w
                    noStroke();
                    fill(random(0,255),random(0,255),random(0,255));
                    rect(x, y, w, w);
                }
                    if(keyCode == RIGHT_ARROW){
                     x = x+w;
                     noStroke();
                     fill(random(0,255),random(0,255),random(0,255));
                   rect(x, y, w, w);
                }
            }

It's all what I can do