Cell.java

package pw.dvd604.fsg;

import java.util.Random;

public class Cell extends Particle {

    public Cell(int x, int y, int r, int g, int b) {
        super(x, y, r, g, b);

    }

    @Override
    protected void doUpdates() {
        int dupeX = this.getX();
        int dupeY = this.getY();
        int dir = new Random().nextInt(4);
        if(dir == 3 || dir == 1){
            if(dir == 1){
                dupeX = dupeX + new Random().nextInt(4);
            } else {
                dupeX = dupeX - new Random().nextInt(4);
            }
        }
        if(dir == 2 || dir == 0){
            if(dir == 0){
                dupeY = dupeY+new Random().nextInt(4);
            } else {
                dupeY = dupeY-new Random().nextInt(4);
            }
        }

        Starter.canvas.listToAdd.add(new Cell(dupeX,dupeY,((int)(this.getX()/8 * new Random().nextInt(3))),((int)(this.getY()/6 * new Random().nextInt(3))),
                (int)(((new Random().nextInt(getX() + 1)+getY())/14) * 2.55)));
        this.setRequiresUpdate(false);
    }

}

Particle.java

package pw.dvd604.fsg;

import java.awt.Color;

public abstract class Particle {

    private int red;
    private int green;
    private int blue;
    private int x;
    private int y;
    private boolean doGravity = false;
    private boolean isMoving = true;
    private boolean requiresUpdate = true;

    public Particle(int x, int y, int r, int g, int b) {
        this.setX(x);
        this.setY(y);
        setRed(r);
        setGreen(g);
        setBlue(b);
    }

    public Particle(int x, int y, int r, int g, int b, boolean grav) {
        this.setX(x);
        this.setY(y);
        setRed(r);
        setGreen(g);
        setBlue(b);
        setDoGravity(grav);
    }

    protected void updatePart() {
        if (requiresUpdate) {
            if (doGravity) {
                if (this.isMoving) {
                    try{
                    if ((Starter.canvas.canvas.getRGB(this.x, this.y + 2) == Color.black
                            .getRGB())) {
                        this.y = this.y + 2;
                    } else {
                        if (Starter.canvas.canvas.getRGB(this.x, this.y + 2) == Color.gray
                                .getRGB()) {
                            this.isMoving = false;
                        }
                    }} catch(Exception e){}
                }
            }
            if(this.x>=799 || this.x<=1){
                Starter.partList.remove(this);
            }
            if(this.y>=599 || this.y<=1){
                Starter.partList.remove(this);
            }
            doUpdates();
        }
    }

    protected abstract void doUpdates();

    public int getRed() {
        return red;
    }

    public void setRed(int red) {
        this.red = red;
    }

    public int getGreen() {
        return green;
    }

    public void setGreen(int green) {
        this.green = green;
    }

    public int getBlue() {
        return blue;
    }

    public void setBlue(int blue) {
        this.blue = blue;
    }

    public int getX() {
        return x;
    }

    public void setX(int x) {
        this.x = x;
    }

    public int getY() {
        return y;
    }

    public void setY(int y) {
        this.y = y;
    }

    public boolean isDoGravity() {
        return doGravity;
    }

    public void setDoGravity(boolean doGravity) {
        this.doGravity = doGravity;
    }

    public boolean isMoving() {
        return isMoving;
    }

    public void setMoving(boolean isMoving) {
        this.isMoving = isMoving;
    }

    public boolean requiresUpdate() {
        return requiresUpdate;
    }

    public void setRequiresUpdate(boolean requiresUpdate) {
        this.requiresUpdate = requiresUpdate;
    }

}