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Add a class for drawing hilbert curves

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This commit is contained in:
Manuel Thalmann 2022-10-11 22:53:20 +02:00
parent 019c56c849
commit 983ef9cf60
1 changed files with 40 additions and 0 deletions
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app/src/main/java/ch/nuth/zhaw/exbox/HilbertServer.java Normal file
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package ch.nuth.zhaw.exbox;
/**
* Provides the functionality to draw hilbert curves.
*/
public class HilbertServer implements CommandExecutor {
@Override
public String execute(String command) {
int depth = Integer.parseInt(command);
Turtle turtle = Turtle.instance();
double dist = 0.8 / (Math.pow(2, depth + 1) - 1);
turtle.reset(0.1, 0.1);
hilbert(turtle, depth, dist, -90);
return turtle.getTrace();
}
private void hilbert(Turtle turtle, int depth, double dist, double angle) {
if (depth > 0) {
turtle.turn(-angle);
hilbert(turtle, depth - 1, dist, -angle);
turtle.move(dist);
turtle.turn(angle);
hilbert(turtle, depth - 1, dist, angle);
turtle.move(dist);
hilbert(turtle, depth - 1, dist, angle);
turtle.turn(angle);
turtle.move(dist);
hilbert(turtle, depth - 1, dist, -angle);
turtle.turn(-angle);
} else {
turtle.turn(-angle);
turtle.move(dist);
turtle.turn(angle);
turtle.move(dist);
turtle.turn(angle);
turtle.move(dist);
turtle.turn(-angle);
}
}
}