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