| Line 187: | Line 187: | ||
==IV: Butterflies== | ==IV: Butterflies== | ||
==III: Cat Eyes== | |||
{| border="1" | |||
|- | |||
! style="width: 50%" | Result | |||
! style="width: 50%" | Algorithm | |||
|- | |||
|[[File:butterflies (Konvertiert)-quicktime.mov]] | |||
|<source lang=java> | |||
int num=40; //number of butterflies, but actually around 5 "form" one... | |||
int stepLength=10; //tempo of them | |||
int x[]= new int [num]; | |||
int y[]= new int [num]; | |||
int w[]= new int [num]; | |||
int h[]= new int [num]; | |||
void setup() { | |||
rectMode(CENTER); | |||
size(400,1000); | |||
background(255); | |||
noStroke(); | |||
for(int i=0; i<x.length; i++){ | |||
x[i]=(int)random(width); // random position of the butterflies | |||
y[i]=(int)random(height); | |||
w[i]=(int)random(20,80); | |||
h[i]=(int)random(20,80); | |||
} | |||
} | |||
void draw() { | |||
background(255); | |||
rectMode(CENTER); | |||
for(int i=0; i<x.length-1; i++){ | |||
int newX=x[i]+=random(-stepLength,stepLength); //move the butterflies | |||
int newY=y[i]+=random(-stepLength,stepLength); | |||
if(newX<0) newX = width; | |||
else if(newX>width) newX = 0; | |||
if(newY<0) newY = height; //keep them | |||
else if(newY>height) newY = height; | |||
x = append(x, newX); | |||
y = append(y, newY); // I guess this results in "butterfly effect" | |||
if(x.length > num){ | |||
x = subset(x, 1); | |||
y = subset(y, 1); | |||
rect(x[i],y[i],w[i],h[i]); | |||
} | |||
fill(x[i],y[i],150); //mellow colours | |||
} | |||
} | |||
</source> | |||
|- | |||
|} | |||