package pathgame.tilemap;

import java.util.Iterator;
import java.util.LinkedList;

public class TileMap {
    private static class TownConverter {
        private int x;
        private int y;
        private int ticks = 0;
        private int index = -1;
    }

    private int towns = 0;
    private final int width;
    private final int height;
    private final int[][] tiles;
    private boolean dirty = true;
    private final LinkedList<TownConverter> townConverters = new LinkedList<>();

    private int homeX;
    private int homeY;

    public TileMap(int width, int height) {
        this.width = width;
        this.height = height;
        tiles = new int[width][height];
    }

    public int getWidth() {
        return width;
    }

    public int getHeight() {
        return height;
    }

    public void setTile(int x, int y, Tile tile) {
        dirty = true;
        if(tiles[x][y] == Tiles.TOWN.getId()) {
            towns--;
        }
        if(tile == Tiles.TOWN) {
            towns++;
        }
        tiles[x][y] = tile.getId();
    }

    public Tile getTile(int x, int y) {
        return Tile.fromId(tiles[x][y]);
    }

    public boolean isDirty() {
        return dirty;
    }

    public void clean() {
        dirty = false;
    }

    public void tick() {
        Iterator<TownConverter> iter = townConverters.iterator();
        while(iter.hasNext()) {
            TownConverter tc = iter.next();
            tc.ticks++;
            if(tc.ticks % 10 == 0) {
                tc.index++;
                if(tc.index >= Tiles.TOWN_BLOCKED.length) {
                    iter.remove();
                    continue;
                }
                setTile(tc.x, tc.y, Tiles.TOWN_BLOCKED[tc.index]);
            }
        }
    }

    public void convertTown(int x, int y) {
        TownConverter tc = new TownConverter();
        tc.x = x;
        tc.y = y;
        townConverters.add(tc);
    }

    public int getNumberOfTowns() {
        return towns;
    }

    public void setHomeTown(int x, int y) {
        homeX = x;
        homeY = y;
    }

    public int getHomeX() {
        return homeX;
    }

    public int getHomeY() {
        return homeY;
    }
}