package sc;
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.image.BufferStrategy;
import java.awt.image.BufferedImage;
import javax.swing.JFrame;
import sc.math.SimplexNoise;
public final class ProceduralTextures extends JFrame {
private static final long serialVersionUID = 1L;
/** Constructs an instance of ProceduralTextures */
public ProceduralTextures(int width, int height) {
setSize(width, height);
setTitle("Procedural Textures");
setResizable(false);
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
setVisible(true);
}
/** Program entrypoint */
public static void main(String[] args) {
final int width = 640;
final int halfwidth = width / 2;
final int height = 480;
final int halfheight = height / 2;
// Create the JFrame application
ProceduralTextures p = new ProceduralTextures(width, height);
// Create a buffer strategry and graphics context
p.createBufferStrategy(2);
BufferStrategy s = p.getBufferStrategy();
Graphics2D g;
// Create a BufferedImage to paint noise on
BufferedImage img = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
int i = 100;
// Main loop repeats while JFrame is visible
while (p.isVisible()) {
// Paint noise
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++) {
double noise = SimplexNoise.noise(((x-halfwidth)/width) * i, ((y-halfheight)/height) * i, 0);
int shade = (int) ((noise + 1) * 128);
shade = (shade << 16) + (shade << 8) + shade;
img.setRGB(x, y, shade);
}
}
// Get the off screen graphics context
g = (Graphics2D) s.getDrawGraphics();
// Paint image to graphic context
g.drawImage(img, null, 0, 0);
// Swap the buffers
s.show();
i--;
}
}
}