38 lines
930 B
Rust
38 lines
930 B
Rust
//! Koch snowflake fractal example
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use turtle_lib_macroquad::*;
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fn koch(depth: u32, turtle: &mut TurtlePlan, distance: f32) {
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if depth == 0 {
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turtle.forward(distance);
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} else {
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let new_distance = distance / 3.0;
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koch(depth - 1, turtle, new_distance);
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turtle.left(60.0);
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koch(depth - 1, turtle, new_distance);
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turtle.right(120.0);
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koch(depth - 1, turtle, new_distance);
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turtle.left(60.0);
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koch(depth - 1, turtle, new_distance);
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}
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}
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#[turtle_main("Koch Snowflake")]
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fn draw(turtle: &mut TurtlePlan) {
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// Position turtle
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turtle.set_speed(1001);
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turtle.pen_up();
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turtle.backward(150.0);
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turtle.pen_down();
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// Draw Koch snowflake (triangle of Koch curves)
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for _ in 0..3 {
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koch(4, turtle, 300.0);
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turtle.right(120.0);
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turtle.set_speed(1200);
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}
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turtle.hide(); // Hide turtle when done
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}
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