WallBasedPathfinder.java

package approach3.parallel;

import approach3.parallel.operations.Trace;
import structs.Int3;
import structs.Vec3;

import java.awt.*;
import java.util.ArrayList;

public class WallBasedPathfinder {


    public void find() {

        int beginX = SharedRessources.getInstance().getStart().x;
        int beginY = SharedRessources.getInstance().getStart().y;

        int endX = SharedRessources.getInstance().getEnd().x;
        int endY = SharedRessources.getInstance().getEnd().y;


        SharedRessources
                .getInstance()
                .getExecutor()
                .execute(new Trace(endX, endY, beginX, beginY, 0));


    }


    ArrayList<Point> debug = new ArrayList<>();


    public ArrayList<Point> calculatePath(int startX, int startY, int destX, int destY) {

        int x = startX;
        int y = startY;

        while (x != destX || y != destY) {

            debug.add(new Point(x, y));

            Int3 currentDir
                    =
                    SharedRessources.getInstance().getData(x, y);

            int dx = (int) currentDir.getX();
            int dy = (int) currentDir.getY();

            if (dx == 0 && dy == 0)
                break;

            x += dx;
            y += dy;


        }

        System.out.println("Done.");

        return debug;
    }


    public void draw(Graphics g) {


        for (int j = 0; j < SharedRessources.getInstance().getHeight(); j++) {
            for (int i = 0; i < SharedRessources.getInstance().getWidth(); i++) {
                if (SharedRessources.getInstance().isWall(i, j)) {
                    g.setColor(Color.blue);
                    g.fillRect(i * 5, j * 5, 5, 5);
                } else {
                    int dx = (int) SharedRessources.getInstance().getData(i, j).getX() * 5;
                    int dy = (int) SharedRessources.getInstance().getData(i, j).getY() * 5;

                    if (dx != 0 || dy != 0) {
                        int green = SharedRessources.getInstance().getStep(i, j);
                        if (green >= 255)
                            green = 255;
                        Color color
                                = new Color(0, 255, 0);

                        g.setColor(color);

                        g.fillRect(i * 5, j * 5, 5, 5);

                        g.setColor(Color.red);
                        g.drawLine(i * 5, j * 5, i * 5 + dx, j * 5 + dy);


                    } else {
                        g.setColor(Color.black);
                        g.fillRect(i * 5, j * 5, 5, 5);
                    }
                }
            }
        }

        if (SharedRessources.getInstance().getEnd() == null || SharedRessources.getInstance().getStart() == null)
            return;


        g.setColor(Color.yellow);
        g.fillRect(SharedRessources.getInstance().getEnd().x * 5,
                SharedRessources.getInstance().getEnd().y * 5, 5
                , 5);

        g.setColor(Color.red);
        g.fillRect(SharedRessources.getInstance().getStart().x * 5,
                SharedRessources.getInstance().getStart().y * 5
                , 5, 5);


        g.setColor(Color.red);

        for (int i = 0; i < debug.size(); i++)
            g.fillRect(debug.get(i).x * 5, debug.get(i).y * 5, 5, 5);

    }
}