kopia lustrzana https://github.com/villares/sketch-a-day
109 wiersze
2.9 KiB
Plaintext
109 wiersze
2.9 KiB
Plaintext
// The Nature of Code
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// Daniel Shiffman
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// http://natureofcode.com
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// Interactive Selection
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// http://www.genarts.com/karl/papers/siggraph91.html
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// The class for our "organism", contains DNA sequence, fitness value, position on screen
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// Fitness Function f(t) = t (where t is "time" mouse rolls over organism)
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class Organism {
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DNA dna; // organism's DNA
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float fitness; // How good is this organism?
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float x, y; // Position on screen
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int wh = 110; // Size of square enclosing organism
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boolean mouseIsOver; // Are we rolling over this organism?
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// Create a new organism
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Organism(DNA dna_, float x_, float y_) {
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dna = dna_;
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x = x_;
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y = y_;
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fitness = 1;
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}
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// Display the organism
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void display() {
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// We are using the organism's DNA to pick properties for this organism
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// Now, since every gene is a floating point between 0 and 1, we map the values
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int n = int(map(dna.genes[0]+dna.genes[39], 0, 2, 3, 19));
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pushMatrix();
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pushStyle();
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translate(x, y);
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for (int i = 2; i < n; i = i + 2) {
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stroke(1);
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fill(dna.genes[i-1], 1, 1);
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//noFill();
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float x1 = map(dna.genes[i], 0, 1, -wh/4, wh/4);
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float y1 = map(dna.genes[i+1], 0, 1, -wh/4, wh/4);
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float x2 = map(dna.genes[i*2], 0, 1, -wh/4, wh/4);
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float y2 = map(dna.genes[i*2+1], 0, 1, -wh/4, wh/4);
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float x3 = map(dna.genes[i-1], 0, 1, wh/10, wh/4);
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float y3 = map(dna.genes[i*2-1], 0, 1, wh/10, wh/4);
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triangle(x1, y1, x2, y2, x3, y3);
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}
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// Draw the bounding box
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popStyle();
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rectMode(CENTER);
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if (mouseIsOver) stroke(0, 1, 1);
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else stroke(1);
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noFill();
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rect(0, 0, wh, wh);
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stroke(0.5);
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line(-wh/2, 0, wh/2, 0);
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line(0, -wh/2, 0, wh/2);
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popMatrix();
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// Display fitness value
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getFitness();
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textAlign(CENTER);
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fill(1);
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text(fitness, x, y+70);
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}
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float getFitness() {
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int q1, q2, q3, q4;
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int cx = int(x-wh/2);
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int cy = int(y-wh/2);
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q1 = getNonBlack(cx, cy, int(x), int(y));
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q2 = getNonBlack(int(x),cy , cx+wh,int(y));
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q3 = getNonBlack(cx, int(y), int(x), cy+wh);
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q4 = getNonBlack(int(x), int(y), cx+wh, cy+wh);
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int t = getNonBlack(cx, cy, cx+wh, cy+wh);
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fitness = t - abs(q1-q2) - abs(q3 - q4) - abs(q1 - q3) - abs(q2 - q2);
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return fitness;
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}
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DNA getDNA() {
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return dna;
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}
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int getNonBlack(int x1, int y1, int x2, int y2) {
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int count = 0;
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for (int x = x1; x < x2; x++) {
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for (int y = y1; y < y2; y++) {
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if (get(x, y) != color(0)) count++;
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}
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}
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return count;
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}
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// Increment fitness if mouse is rolling over organism
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void checkMouseOver(int mx, int my) {
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int cx = int(x-wh/2);
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int cy = int(y-wh/2);
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if (mx > cx && mx < cx + wh && my > cy && my < cy + wh) {
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mouseIsOver = true;
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if (mousePressed) fitness += 0.25;
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} else {
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mouseIsOver = false;
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}
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}
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}
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