Hi I want the mousePressed () function to be executed whenever the mousePressed function is executed by the parent without having to write it into the function of the parent …
I hope you can help me 
class Joystick extends PApplet {
PApplet parent;
PVector mainLoc;
PVector stickLoc;
PVector value;
float mainRadius;
float stickRadius;
boolean onStick = false;
boolean mouseDown = false;
boolean mouseUp = true;
Joystick(PApplet p, float x, float y, float rMain) {
super();
parent = p;
mainLoc = new PVector(x, y);
stickLoc = new PVector(x, y);
value = new PVector(0, 0);
mainRadius = rMain;
stickRadius = rMain/3;
}
void update(float x, float y) {
moveStick(x, y);
show();
updateValue();
}
void show() {
parent.fill(180);
parent.stroke(0);
parent.ellipse(mainLoc.x, mainLoc.y, mainRadius*2, mainRadius*2);
parent.fill(130);
parent.noStroke();
parent.ellipse(stickLoc.x, stickLoc.y, stickRadius*2, stickRadius*2);
}
void updateValue() {
float x = map(stickLoc.x, mainLoc.x-mainRadius, mainLoc.x+mainRadius, -1, 1);
float y = map(stickLoc.y, mainLoc.y-mainRadius, mainLoc.y+mainRadius, -1, 1);
value.set(x, y);
}
void moveStick(float x, float y) {
if (onStick) {
float d = dist(x, y, mainLoc.x, mainLoc.y);
if (d <= mainRadius) {
stickLoc.set(x, y);
} else {
PVector sub = PVector.sub(new PVector(x, y), mainLoc);
sub.normalize();
stickLoc.set(mainLoc.x+(sub.x*mainRadius), mainLoc.y+(sub.y*mainRadius));
}
} else {
stickLoc.set(mainLoc);
}
//if(parent.mousePressed && mouseDown == false){
// mousePressed();
// mouseDown = true;
//}
}
void mousePressed() {
float d = dist(mouseX, mouseY, mainLoc.x, mainLoc.y);
if (d <= mainRadius) {
onStick = true;
//stickLoc.set(mouseX, mouseY);
} else {
onStick = false;
}
}
void mouseReleased() {
onStick = false;
}
}