A simple spiral
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// You can find the Turtle API reference here: https://turtletoy.net/syntax Canvas.setpenopacity(1); // Global code will be evaluated once. const turtle = new Turtle(); const max = 1000 //min=100 max=2000 step=1 const pitch = 0.6 //min=0.1 max=1 step=0.1 n = 0; turtle.penup(); turtle.goto(-80,-90); turtle.pendown(); // The walk function will be called until it returns false. function walk(i) { turtle.forward(2); turtle.right(pitch + n); n = n + 0.008; return i < max }