Quiz_Array

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class Ball {

  float gravity = 0.1;  

  float x;

  float y;

  float diameter;

  float s = 0;

  Ball[] others;

  Ball(float xtemp, float ytemp, float dtemp, float speed, Ball[] oin) {

    x = xtemp;

    y = ytemp;

    diameter = dtemp;

    s = speed;

    others = oin;

  } 

  void gravity() {

    float rad = 400.0;

    fill(y/2,y/2,y);

    noStroke();

    ellipseMode(CENTER);

    strokeWeight(diameter/10);

    stroke(255, 300-(255 * y/rad));

    ellipse(x, y, diameter, diameter);

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    y = y + s;

    s = s + gravity;

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    if (y > height - 50) {

      s = s * -0.95;

      y = height - 50;

    }

  }

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  void display() {

    ellipse(x, y, diameter, diameter);

  }

}