Make the ball orbit in an ellipse instead of a circle. You can do this by using a different radius for the x and for the y calculations. Make multiple balls orbit the mouse at different speeds. E.g., make three. Make one move in the opposite direction (counter-clockwise).

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Programming language: JAVA: Processing

Exercise 2. In section 7.3, you made a ball orbit the mouse.

  1. Make the ball orbit in an ellipse instead of a circle. You can do this by using a different radius for the x and for the y calculations.
  2. Make multiple balls orbit the mouse at different speeds. E.g., make three.
  3. Make one move in the opposite direction (counter-clockwise).

 

Example in 7.3 codes attached with a photo. Cannot use advanced coding!

we have only learned active processing, user defined functions, float, simple trig so far

float theta = 0;
float delta = 0.1;
%3D
float radius
= 50;
float size = 10;
void setup()
{
size (500, 500);
}
void draw ()
{
background(0);
float x =
cos (theta)*radius;
float y = sin(theta)*radius;
ellipse (mouseX+x, mouseY+y, size, size);
theta
theta + delta;
%3D
Transcribed Image Text:float theta = 0; float delta = 0.1; %3D float radius = 50; float size = 10; void setup() { size (500, 500); } void draw () { background(0); float x = cos (theta)*radius; float y = sin(theta)*radius; ellipse (mouseX+x, mouseY+y, size, size); theta theta + delta; %3D
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