44 lines
712 B
JavaScript
44 lines
712 B
JavaScript
let v1, v2;
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function setup() {
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createCanvas(800, 300);
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v1 = createVector(50, 250);
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v2 = createVector(750, 250);
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background(0);
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stroke(255);
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koch(v1, v2, 6);
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}
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function koch(p1, p2, i) {
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if (i === 1) connect(p1, p2);
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else {
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const {a, b, c, d, e} = generateEdges(p1, p2)
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koch(a, b, i-1)
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koch(b, c, i-1)
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koch(c, d, i-1)
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koch(d, e, i-1)
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}
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}
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function connect(p1, p2) {
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line(p1.x, p1.y, p2.x, p2.y);
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}
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function generateEdges(p1, p2) {
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let v = p5.Vector.sub(p2, p1);
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v.div(3);
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let a = p1.copy();
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let b = p5.Vector.add(p1, v);
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let d = p5.Vector.sub(p2, v);
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v.rotate(-PI/3);
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let c = p5.Vector.add(b, v);
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e = p2.copy();
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return {a, b, c, d, e}
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}
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