39 lines
946 B
Plaintext
39 lines
946 B
Plaintext
// The Nature of Code
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// Daniel Shiffman
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// http://natureofcode.com
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int x,y;
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void setup() {
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size(200,200);
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background(0);
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smooth();
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}
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void draw() {
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//create an alpha blended background
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fill(0,1);
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rect(0,0,width,height);
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//probabilities for 3 different cases (these need to add up to 100% since something always occurs here!)
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float p1 = 0.05; // 5% chance of pure white occurring
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float p2 = 0.80 + p1; // 80% chance of gray occuring
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//float p3 = 1.0 - p2 ; // 15% chance of black (we don't actually need this line since it is
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// by definit n, the "in all other cases" part of our else
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float num = random(1); // pick a random number between 0 and 1
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if (num <p1) {
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fill(255);
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} else if (num < p2) {
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fill(150);
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} else {
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fill(0);
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}
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stroke(200);
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rect(x,y,10,10);
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// X and Y walk through a grid
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x = (x + 10) % width;
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if (x == 0) y = (y + 10) % width;
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}
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