Sebastiaan_orsel_moduleopdracht3

// Rick van Lieshout (en I1E-n) Donderdag 11 September.
// Moduleopdrachten 3


int robotX, robotY = 0;
int robotSize = 100;
int circleSize = robotSize;
int circleX = 3*robotSize;
int circleY = 3*robotSize;
boolean attached = false;

void setup() {
  int size = 10*robotSize;
  size(size, size);
}

void draw() {
  background(#D600B3);
  drawGrid(); //draw an optional grid
  //use robot size for circle too, since they wil always be the same
  robotX = constrain(robotX, 0, width-robotSize);
  robotY = constrain(robotY, 0, height-robotSize);
  circleX = constrain(circleX, 0, width-circleSize);
  circleY = constrain(circleY, 0, width-circleSize);

  fill(#F7C50C);
  rect(robotX, robotY, robotSize, robotSize);
  ellipseMode(CORNER);
  fill(#DBDBDB);
  ellipse(circleX, circleY, circleSize, circleSize);
}

void keyPressed() {
  if (keyCode == ENTER || keyCode == RETURN) {
    if (robotX == circleX && robotY == circleY) {
      if (attached) {
        attached = false;
      } else {
        attached = true;
      }
    }
  }

  if (key == CODED) {
    switch(keyCode) {
    case UP:
      if (keyCode == UP) {
        robotY-=robotSize;
        if (attached) {
          circleY-=robotSize;
        }
      }
      break;
    case DOWN:
      if (keyCode == DOWN) {
        robotY+=robotSize;
        if (attached) {
          circleY+=robotSize;
        }
      }
      break;
    case LEFT:
      if (keyCode == LEFT) {
        robotX-=robotSize;
        if (attached) {
          circleX-=circleSize;
        }
      }
      break;
    case RIGHT:
      if (keyCode == RIGHT) {
        robotX+=robotSize;
        if (attached) {
          circleX+=circleSize;
        }
      }
      break;
    }
  }
}

void drawGrid() {
  for (int i = 0; i<= width; i+=robotSize) {
    stroke(126);
    line(i, 0, i, height);
    line(0, i, width, i);
  }
}