import java.awt.*;
import javax.swing.*;
import java.util.Random;
import java.util.ArrayDeque;
import java.util.Timer;

public class JGrilleDeJeu extends JComponent {

	private static final int TAILLE_GRILLE = 25;
	private char[][] grille;
	private ArrayDeque<Point> coordSnake;

	public JGrilleDeJeu(ArrayDeque<Point> coordSnake) {
		this.grille = new char[TAILLE_GRILLE][TAILLE_GRILLE];
		this.coordSnake = coordSnake;

		for (int i = 0; i != TAILLE_GRILLE; i++) {
			for (int j = 0; j != TAILLE_GRILLE; j++) {
				this.grille[i][j] = 'g';
			}
		}

		for (Point point : coordSnake) {
			this.grille[point.x][point.y] = 'o';
		}

		Random r = new Random();
		int coordXPomme = Math.abs(r.nextInt() % TAILLE_GRILLE);
		int coordYPomme = Math.abs(r.nextInt() % TAILLE_GRILLE);

		this.grille[coordXPomme][coordYPomme] = 'r';

		Timer timer = new Timer();

		while (true) {
			timer.wait(1000L);
			this.avancerSnake();
		}
	}

	@Override
	public void paintComponent(Graphics pinceau) {
		Graphics secondPinceau = pinceau.create();

        if (this.isOpaque()) {
            secondPinceau.setColor(this.getBackground());
            secondPinceau.fillRect(0, 0, this.getWidth(), this.getHeight());
        }

        for (int i = 0; i != TAILLE_GRILLE; i++) {
			for (int j = 0; j != TAILLE_GRILLE; j++) {
				switch (grille[i][j]) {
					case 'g':
						secondPinceau.setColor(Color.GREEN);
						break;
					case 'r':
						secondPinceau.setColor(Color.RED);
						break;
					case 'o':
						secondPinceau.setColor(Color.ORANGE);
				}

				secondPinceau.fillRect(
					this.getWidth()/TAILLE_GRILLE*i,
					this.getHeight()/TAILLE_GRILLE*j,
					this.getWidth()/TAILLE_GRILLE,
					this.getHeight()/TAILLE_GRILLE
				);
			}
		}
	}

	public void avancerSnake() {
		this.coordSnake.removeFirst();
		this.coordSnake.addLast(new Point(this.coordSnake.getLast().x+1, this.coordSnake.getLast().y));
	}
}