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var brushHue = 10;
function setup() {
createCanvas(windowWidth, windowHeight);
background(0);
strokeWeight(50);
colorMode(HSB);
}
function draw() {
stroke(brushHue, 255, 255);
if(mouseIsPressed) {
line(pmouseX, pmouseY, mouseX, mouseY)
}
}
function mouseWheel(event) {
brushHue += event.delta/50;
if(brushHue > 360) {
brushHue = 0;
if(brushHue < 0) {
brushHue = 360
}
}
}