Hey people.

I'm working on a game at the moment, I am stuck on something at the moment. I want to create a line which starts from a static starting position, and when I click it will gradually move towards where the mouse was clicked.

The code below shows what I want to achieve.

int endX;
int endY;
int endvar;
int startX;

void setup() {
  size(500, 500);
  startX = (int)random(150, 300);
  endY = 0;
  endvar = (int)random(-1 , 2);
  endX = startX;
 
}

void draw(){
  background (255);
  smooth();
  stroke(255,0,0);
  line(startX, 0, endX, endY);
  endY++;
  endX = endX + endvar;
}

(That is part of a separate section).

This is the code I have so far -

int endX;
int endY;
int startX;
int startY;

void setup(){
 size(500, 500);
 startX = 250;
 startY = 480;

}


void draw(){
  background (255);
 smooth();
 stroke(0,255,255);
}

void mousePressed() {
 
  smooth();
  stroke(255,0,0);
  line(250, 480, mouseX, mouseY);
}

I've tried integrating both pieces of code together, but this hasn't seemed to work at all and I think I need some sort of variable system. Could somebody lend me a hand with this?