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var st = {
spx: 5,
spy: 5,
x: 0,
y: 0,
};
let r;
let g;
let b;
function setup() {
createCanvas(900, 1000);
r = 0;
g = 0;
b = 0;
}
function draw() {
st.x = st.x + st.spx;
st.y = st.y + st.spy;
noStroke();
background(r, g, b);
rect(st.x, st.y, 100, 100);
if (st.x <= 0) {
st.spx = 2
fill(random(255), random(255), random(255));
r = random(255);
g = random(255);
b = random(255);
}
if (st.y <= 0) {
st.spy = 2;
fill(random(255), random(255), random(255));
r = random(255);
g = random(255);
b = random(255);
}
if (st.x >= 800) {
st.spx = -2;
fill(random(255), random(255), random(255));
r = random(255);
g = random(255);
b = random(255);
}
if (st.y >= 900) {
st.spy = -2;
fill(random(255), random(255), random(255));
r = random(255);
g = random(255);
b = random(255);
}
}