Particle File

particle.java

package com.example.lieu;

import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Point;
import android.graphics.drawable.ShapeDrawable;
import android.graphics.drawable.shapes.OvalShape;

public class Particle {

    // Drawable object
    private ShapeDrawable fillShape;

    // Center point
    private Point center;

    // Radius of particle
    private int radius;

    // Constructor with optional color
    public Particle (Point center, int radius) {
        this.center = center;
        this.fillShape = new ShapeDrawable(new OvalShape());
        this.fillShape.getPaint().setColor(Color.WHITE);
    }

    // Positions the particle
    private void setBounds () {
        this.fillShape.setBounds(center.x - radius, center.y - radius, center.x + radius, center.y + radius);
    }

    // Draws the particle
    public void draw (Canvas canvas) {
        this.setBounds();
        this.fillShape.draw(canvas);
    }

}