87 lines
2.2 KiB
Java
87 lines
2.2 KiB
Java
|
import java.awt.*;
|
||
|
|
import javax.swing.JFrame;
|
||
|
|
|
||
|
|
public class Flocon extends Polygon {
|
||
|
|
|
||
|
|
Vector2[] ptable;
|
||
|
|
|
||
|
|
public Flocon() {
|
||
|
|
super();
|
||
|
|
}
|
||
|
|
|
||
|
|
private int floc(int n, int offset) {
|
||
|
|
if (n < 0) return offset+1;
|
||
|
|
Vector2 local = ptable[offset].toLocal(ptable[offset+1]);
|
||
|
|
local.div(3);
|
||
|
|
|
||
|
|
Vector2 s1 = Vector2.add(ptable[offset], local);
|
||
|
|
ptable[offset+1] = s1;
|
||
|
|
|
||
|
|
if (n > 0) {
|
||
|
|
offset = floc(n-1, offset);
|
||
|
|
} else offset++;
|
||
|
|
|
||
|
|
Vector2 s2 = Vector2.add(s1, Vector2.rotate(local, -60));
|
||
|
|
ptable[offset+1] = s2;
|
||
|
|
|
||
|
|
if (n > 0) {
|
||
|
|
offset = floc(n-1, offset);
|
||
|
|
} else offset++;
|
||
|
|
|
||
|
|
Vector2 s3 = Vector2.add(s2, Vector2.rotate(local, 60));
|
||
|
|
ptable[offset+1] = s3;
|
||
|
|
|
||
|
|
if (n > 0) {
|
||
|
|
offset = floc(n-1, offset);
|
||
|
|
} else offset++;
|
||
|
|
|
||
|
|
Vector2 s4 = Vector2.add(s3, local);
|
||
|
|
ptable[offset+1] = s4;
|
||
|
|
|
||
|
|
if (n > 0) {
|
||
|
|
offset = floc(n-1, offset);
|
||
|
|
} else offset++;
|
||
|
|
|
||
|
|
return offset;
|
||
|
|
}
|
||
|
|
|
||
|
|
public void createFloc(int x, int y, int r, int n) {
|
||
|
|
int size = 4;
|
||
|
|
for (int i = 0; i < n; i++) size = size * 4 - 3;
|
||
|
|
this.ptable = new Vector2[size];
|
||
|
|
int offset = 0;
|
||
|
|
|
||
|
|
ptable[0] = Vector2.rotate(new Vector2(0, -r),-60).add(new Vector2(x, y));
|
||
|
|
ptable[1] = Vector2.rotate(new Vector2(0, -r), 60).add(new Vector2(x, y));
|
||
|
|
offset = floc(n-1, offset);
|
||
|
|
|
||
|
|
ptable[offset+1] = Vector2.rotate(new Vector2(0, -r), 180).add(new Vector2(x, y));
|
||
|
|
offset = floc(n-1, offset);
|
||
|
|
|
||
|
|
ptable[offset+1] = Vector2.rotate(new Vector2(0, -r), -60).add(new Vector2(x, y));
|
||
|
|
floc(n-1, offset);
|
||
|
|
|
||
|
|
|
||
|
|
for (Vector2 v : ptable) {
|
||
|
|
addPoint(v.x, v.y);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
public static void main(String[] args) {
|
||
|
|
|
||
|
|
|
||
|
|
JFrame f = new JFrame();
|
||
|
|
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
|
||
|
|
f.setLocation(100, 100);
|
||
|
|
f.setSize(1200, 1200);
|
||
|
|
|
||
|
|
Flocon p = new Flocon();
|
||
|
|
p.createFloc(f.getWidth() / 2, f.getHeight() / 2 - 100, 500, 5);
|
||
|
|
|
||
|
|
|
||
|
|
f.add(new FloconPanel(p));
|
||
|
|
|
||
|
|
f.setVisible(true);
|
||
|
|
}
|
||
|
|
}
|