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MengerSpongeFractal.pde
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MengerSpongeFractal.pde
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ArrayList<Box> sponge;
void setup() {
size(800, 600, P3D);
sponge = new ArrayList<Box>();
Box bx = new Box(0,0,0, 250);
sponge.add(bx);
}
void draw() {
background(0);
translate(width/2, height/2);
rotateX(frameCount * 0.01);
rotateY(frameCount * 0.01);
lights();
for(Box bx: sponge){
bx.show();
}
//noLoop();
}
void mousePressed() {
ArrayList<Box> boxes = new ArrayList<Box>();
for(Box bx: sponge) {
boxes.addAll(bx.generate());
}
sponge = boxes;
}
class Box{
PVector pos;
float r;
Box(float x, float y, float z, float rr) {
pos = new PVector(x, y, z);
r = rr;
}
ArrayList<Box> generate() {
ArrayList<Box> boxes = new ArrayList<Box>();
float ratio = r / 3;
for(int x = -1; x < 2; x++) {
for(int y = -1; y < 2; y++) {
for(int z = -1; z < 2; z++) {
int zeros = 0;
if(x == 0) zeros++;
if(y == 0) zeros++;
if(z == 0) zeros++;
if(zeros < 2) {
Box bx = new Box(pos.x + ratio * x, pos.y + ratio * y, pos.z + ratio * z, ratio);
boxes.add(bx);
}
}
}
}
return boxes;
}
void show() {
pushMatrix();
stroke(80);
fill(250);
translate(pos.x, pos.y, pos.z);
box(r);
popMatrix();
}
}