mirror of
https://github.com/dyne/FreeJ.git
synced 2026-02-05 12:39:15 +01:00
ae7b1ad056
processing-js 0.4 has been merged in some relevant parts basic and topic scripts added for test color handling fixed, more scripts show up now
40 lines
740 B
Plaintext
40 lines
740 B
Plaintext
float r;
|
|
|
|
// Angle and angular velocity, accleration
|
|
float theta;
|
|
float theta_vel;
|
|
float theta_acc;
|
|
|
|
void setup() {
|
|
size(200,200);
|
|
frameRate(30);
|
|
smooth();
|
|
|
|
// Initialize all values
|
|
r = 50.0f;
|
|
theta = 0.0f;
|
|
theta_vel = 0.0f;
|
|
theta_acc = 0.0001f;
|
|
}
|
|
|
|
void draw() {
|
|
background(0);
|
|
// Translate the origin point to the center of the screen
|
|
translate(width/2,height/2);
|
|
|
|
// Convert polar to cartesian
|
|
float x = r * cos(theta);
|
|
float y = r * sin(theta);
|
|
|
|
// Draw the ellipse at the cartesian coordinate
|
|
ellipseMode(CENTER);
|
|
noStroke();
|
|
fill(200);
|
|
ellipse(x,y,16,16);
|
|
|
|
// Apply acceleration and velocity to angle (r remains static in this example)
|
|
theta_vel += theta_acc;
|
|
theta += theta_vel;
|
|
|
|
}
|