ArrayList of objects
class Ball {
public:
float x;
float y;
float speed;
float gravity;
float w;
float life;
Ball(float tempX, float tempY, float tempW) {
x = tempX;
y = tempY;
w = tempW;
speed = 0;
gravity = 0.1;
life = 255;
}
void move() {
speed += gravity;
y += speed;
if (y > height) {
speed *= -0.8;
y = height;
}
}
bool finished() {
life--;
return life < 0;
}
void display() {
fill(0, life);
ellipse(x, y, w, w);
}
};
ArrayList<Ball> balls;
int ballWidth = 48;
void setup() {
size(640, 360);
noStroke();
balls = ArrayList<Ball>();
balls.add(new Ball(width / 2, 0, ballWidth));
}
void draw() {
background(255);
for (int i = balls.size() - 1; i >= 0; i--) {
Ball* b = balls.get(i);
b->move();
b->display();
if (b->finished()) {
balls.remove(i);
}
}
}
void mousePressed() {
balls.add(new Ball(mouseX, mouseY, ballWidth));
}