Little little little problem - syntax

p3tr4s

Little little little problem - syntax

in Contributed Library Questions • 1 year ago

How to make my script work as I t to use location.x, location.y coordinates instead of mouseX, mouseY. The problematic area is in red bold color:) Thank you.

import processing.opengl.*;
import peasy.*;
PeasyCam cam;
Mover[] movers = new Mover[2];
void setup() {
size(800, 800, OPENGL);
cam = new PeasyCam(this, 300, 300, 0, 1000);
cam.setMinimumDistance(1);
cam.setMaximumDistance(100000);
noStroke();
fill(160);
for (int i = 0; i < movers.length; i++) {
movers[i] = new Mover();
}
}
void draw() {
background(255);
ambientLight(95, 95, 95);
directionalLight(51, 102, 126, 0, 0, -1);
directionalLight(60, 60, 60, 1, 60, 0);
directionalLight(20, 20, 20, 0, -5, 0);
lightSpecular(0, 50, 0);
lightFalloff(1, 0, 0);
for (int i = 0; i < movers.length; i++) {
movers[i].update();
movers[i].display();
}
}
ArrayList coordinates = new ArrayList();
class Mover {
PVector location;
PVector velocity;
PVector acceleration;
float topspeed;
float a;
Mover() {
location = new PVector(random(width), random(height));
velocity = new PVector(0, 0);
topspeed = 5;
}
void update() {
PVector mouse = new PVector(mouseX, mouseY);
PVector acceleration = PVector.sub(mouse, location);
acceleration.normalize();
acceleration.mult(0.2);
velocity.add(acceleration);
velocity.limit(topspeed);
location.add(velocity);
a = a + 1;
}
void display() {
stroke(100);
strokeWeight(2);
fill(127, 200);
a = a + 1;
coordinates.add(new Coordinate(mouseX, mouseY)); // this has to be changed to location.x, location.y
// display circles at all the coordinates
for (int i=0; i<coordinates.size(); i++) {
Coordinate c = (Coordinate) coordinates.get(i);
stroke(1, a);
line(location.x, location.y, 0, location.x, location.y, a);
beginShape();
vertex(c.x, c.y, a);
vertex(c.x+48, c.y, a);
vertex(c.x+48, c.y+48, a);
vertex(c.x, c.y+48, a);
endShape(CLOSE);
}
// removes coordinates if there are more than 150, comment this out to keep all coordinates
if (coordinates.size() > 150) {
coordinates.remove(0);
}
}
}
class Coordinate {
int x, y;
Coordinate(int x, int y) {
this.x = x;
this.y = y;
}
}

Replies(1)

calsign

Re: Little little little problem - syntax

1 year ago

The error that you get is " The constructor Coordinate(float, float) does not exist"...
In other words, you are trying to pass two floats to a constructor that requires two ints. You can fix this by casting to an int:

coordinates.add(new Coordinate(((int) location.x, (int) location.y));

I think that you would find this much easier if you used PVector instead of your Coordinate class. You are already using PVector, and the implementation is exactly the same (but it has more utility functions like .add()).