Functions
The drawTarget() function makes it easy to draw many distinct *targets. Each call to drawTarget() specifies the position, size, and number of *rings for each target.
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function setup() {
createCanvas(720, 400);
background(51);
noStroke();
noLoop();
}
function draw() {
drawTarget(width * 0.25, height * 0.4, 200, 4);
drawTarget(width * 0.5, height * 0.5, 300, 10);
drawTarget(width * 0.75, height * 0.3, 120, 6);
}
function drawTarget(xloc, yloc, size, num) {
const grayvalues = 255 / num;
const steps = size / num;
for (let i = 0; i < num; i++) {
fill(i * grayvalues);
ellipse(xloc, yloc, size - i * steps, size - i * steps);
}
}
