求求大佬问下这种java怎么转成p5.js qaq救救孩子

// The Nature of Code
// Daniel Shiffman
// http://natureofcode.com// Example 1-1: Bouncing Ball, no vectors
float x = 100;
float y = 100;
float xspeed = 2.5;
float yspeed = 2;void setup() {
size(800, 600);
smooth();
}void draw() {
background(255);
// Add the current speed to the position.
x = x + xspeed;
y = y + yspeed; if ((x > width) || (x < 0)) {
xspeed = xspeed * -1;
}
if ((y > height) || (y < 0)) {
yspeed = yspeed * -1;
}
// Display circle at x position
noStroke();
strokeWeight(2);
fill(255,155,60,100);
ellipse(x, y, 48, 48);
}