maze

package se.isark.robot;

import java.io.IOException;
import java.io.Reader;
import java.util.Arrays;

public class Maze {
    //Could have used some dynamic way of storing the values but I felt like writing functions for e.g. parsing the maximum (char)area of the file being read.
    private char[][] mazeData;
    private Reader mapping;
    private Position startPos;


    public Maze(Reader reader) throws IOException {
        mapping = reader;
        mazeData = initMazeSize();
        System.out.println(mazeData.length + ":" + mazeData[0].length);

    }

    public boolean isMovable() { //TODO: Inte säker än på ändamålet.

        return false;
    }

    public boolean isGoal(Position posToCheck) {
        return (posToCheck == startPos);
    }

    public Position getStartPosition() {
        return startPos;
    }

    private void fillArray() {
        for(char[] row : mazeData) {
            Arrays.fill(row, '*');
        }
    }

    private char[][] initMazeSize() throws IOException {
        String stringMap = getMap();

        int width = getWidth(stringMap);
        int height = getHeight(stringMap);

        return new char[width][height];
    }

    private String getMap() throws IOException {
        String map = "";

        char read = (char)mapping.read();

        while(read != (char)-1) {
            map += read;
            read = (char)mapping.read();
        }

        return map;
    }

    private int getWidth(String stringMap) {
        int currentMaxWidth = 0;
        int currentWidth = 0;
        int i = 0;
        while(i < stringMap.length()) {
            if(stringMap.charAt(i) == '\n') {
                if(currentWidth > currentMaxWidth) {
                    currentMaxWidth = currentWidth;
                }
                currentWidth = 0;
            } else {
                currentWidth++;
            }
            i++;
        }
        if(currentWidth > currentMaxWidth) {    // Last line might not contain a \n and thus the above won't account for the width of that line.
            currentMaxWidth = currentWidth;
        }
        return currentMaxWidth;
    }

    private int getHeight(String stringMap) {
        int height = 0;
        for(int i = 0; i < stringMap.length(); i++) {
            if(stringMap.charAt(i) == '\n') {
                height++;
            }
        }
        if(stringMap.charAt(stringMap.length()-1) != '\n') { // Last line might not contain a \n and thus the above won't account for that line.
            height++;
        }
        return height;
    }

}