Tiles.java

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// This file is part of MicropolisJ.
// Copyright (C) 2013 Jason Long
// Portions Copyright (C) 1989-2007 Electronic Arts Inc.
//
// MicropolisJ is free software; you can redistribute it and/or modify
// it under the terms of the GNU GPLv3, with additional terms.
// See the README file, included in this distribution, for details.

package micropolisj.engine;

import java.io.*;
import java.nio.charset.Charset;
import java.util.*;

public class Tiles {
        static final Charset UTF8 = Charset.forName("UTF-8");
        static TileSpec[] tiles;
        static Map<String, TileSpec> tilesByName = new HashMap<String, TileSpec>();
        static {
                try {
                        readTiles();
                        checkTiles();
                }
                catch(IOException e) {
                        throw new RuntimeException(e);
                }
        }

        static void readTiles() throws IOException {
                ArrayList<TileSpec> tilesList = new ArrayList<TileSpec>();

                Properties tilesRc = new Properties();
                tilesRc.load(new InputStreamReader(Tiles.class.getResourceAsStream("/tiles.rc"), UTF8));

                for(int i = 0;; i++) {
                        String tileName = Integer.toString(i);
                        String rawSpec = tilesRc.getProperty(tileName);
                        if(rawSpec == null) {
                                break;
                        }

                        TileSpec ts = TileSpec.parse(i, rawSpec, tilesRc);
                        tilesByName.put(tileName, ts);
                        tilesList.add(ts);
                }
                tiles = tilesList.toArray(new TileSpec[0]);

                for(int i = 0; i < tiles.length; i++) {
                        tiles[i].resolveReferences(tilesByName);

                        TileSpec.BuildingInfo bi = tiles[i].getBuildingInfo();
                        if(bi != null) {
                                for(int j = 0; j < bi.members.length; j++) {
                                        int tid = bi.members[j];
                                        int offx = (bi.width >= 3 ? -1 : 0) + j % bi.width;
                                        int offy = (bi.height >= 3 ? -1 : 0) + j / bi.width;

                                        if(tiles[tid].owner == null && (offx != 0 || offy != 0)) {
                                                tiles[tid].owner = tiles[i];
                                                tiles[tid].ownerOffsetX = offx;
                                                tiles[tid].ownerOffsetY = offy;
                                        }
                                }
                        }
                }
        }

        public static TileSpec get(int tileNumber) {
                if(tileNumber >= 0 && tileNumber < tiles.length) {
                        return tiles[tileNumber];
                }
                else {
                        return null;
                }
        }

        static void checkTiles() {
                for(int i = 0; i < tiles.length; i++) {
                        // do something here
                }
        }
}