public boolean mutate() {
copyImage(_lastGeneration, _tempGeneration);
int centerX = _random.nextInt(_smallWidth);
int centerY = _random.nextInt(_smallHeight);
for (int id = 0; id < 4; id++) {
_xs[id] = (int) (centerX + _random.nextInt(_smallWidth) * X_SIGNS[id] * _random.nextDouble());
_ys[id] = (int) (centerY + _random.nextInt(_smallWidth) * Y_SIGNS[id] * _random.nextDouble());
}
Color color =
new Color(
_random.nextInt(256), _random.nextInt(256), _random.nextInt(256), _random.nextInt(256));
_tempGfx.setColor(color);
_tempGfx.fillPolygon(_xs, _ys, 4);
long fitness = _comparer.compare(_tempGeneration);
if (fitness <= _lastFitness) {
_lastFitness = fitness;
copyImage(_tempGeneration, _lastGeneration);
for (int i = 0; i < 4; i++) {
_xs[i] /= SCALE;
_ys[i] /= SCALE;
}
_finalGfx.setColor(color);
_finalGfx.fillPolygon(_xs, _ys, 4);
return true;
} else return false;
}
public GeneratedTest(BufferedImage base) {
_baseImage = base;
_smallWidth = (int) (base.getWidth() * SCALE);
_smallHeight = (int) (base.getHeight() * SCALE);
_smallBaseImage = new BufferedImage(_smallWidth, _smallHeight, BufferedImage.TYPE_INT_ARGB);
_smallBaseImage.createGraphics().drawImage(base, 0, 0, _smallWidth, _smallHeight, null);
_comparer = new ImageComparer(_smallBaseImage);
_lastGeneration = new BufferedImage(_smallWidth, _smallHeight, BufferedImage.TYPE_INT_RGB);
_tempGeneration = new BufferedImage(_smallWidth, _smallHeight, BufferedImage.TYPE_INT_RGB);
_tempGfx = _tempGeneration.createGraphics();
_finalImage =
new BufferedImage(
_baseImage.getWidth(), _baseImage.getHeight(), BufferedImage.TYPE_INT_RGB);
_finalGfx = _finalImage.createGraphics();
_finalGfx.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
_lastFitness = _comparer.compare(_lastGeneration);
System.out.println("Scaled to " + _smallWidth + "x" + _smallHeight);
}