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package sample;
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.canvas.Canvas;
import javafx.scene.canvas.GraphicsContext;
import javafx.scene.image.PixelWriter;
import javafx.scene.layout.BorderPane;
import javafx.stage.Stage;
public class _floor extends Application {
public static void main(String... args) {
Application.launch(args);
}
private static final int VIEW_W = 400, VIEW_H = 300;
private GraphicsContext gc;
@Override
public void start(Stage stage) throws Exception {
BorderPane pane = new BorderPane();
Scene scene = new Scene(pane);
stage.setScene(scene);
Canvas view = new Canvas(VIEW_W, VIEW_H);
pane.setCenter(view);
gc = view.getGraphicsContext2D();
draw();
stage.show();
}
private static final double SQUARE_L = 0.125;
private void draw() {
PixelWriter pw = gc.getPixelWriter();
boolean b_hanten = false, b_even;
int x, y = -VIEW_H / 2, next_y;
int n = 1;
while (true) {
next_y = (int)((-VIEW_H / 2) / (1 + n * SQUARE_L));
n++;
if (y == next_y) break;
for (; y < next_y; y++) {
for (x = -VIEW_W / 2; x < VIEW_W / 2; x++) {
b_even = ((int)(Math.abs(x / (y * 2 * SQUARE_L)) + 0.5)
% 2 == 0);
pw.setArgb(x + VIEW_W / 2, VIEW_H /2 - y,
(b_even != b_hanten) ? 0xff000000 : 0xffffffff);
}
}
b_hanten = !b_hanten;
}
}
}