Android Open Source - Spidermine World

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License

The source code is released under:

Copyright ? 2014 PEMapModder This software is open-source and everyone is welcome to share redistributions or modifications, as long as it is clearly specified that this project's original source is ...

Java Source Code

package pemapmodder.old_spidermine.world;
//  w w w.  j  ava2s.c  o m
import java.io.File;
import java.io.FileOutputStream;
import java.io.OutputStreamWriter;

import pemapmodder.old_spidermine.SpiderServer;
import pemapmodder.old_spidermine.utils.io.MyReader;
import pemapmodder.old_spidermine.utils.math.Position;
import pemapmodder.old_spidermine.world.populator.WorldPopulator;

public class World{
  public final File dir;
  public final File chunksDir;
  public SpiderServer server;
  private Chunk[][] chunks;
  public short type;
  public World(SpiderServer server, String name, Object seed, short type) {
    this.type=type;
    this.server=server;
    dir=new File(server.dir+"worlds/"+name+"/");
    chunksDir=new File(dir+"chunks/");
    boolean isNew=dir.mkdir();
    try{
      if(isNew){
        for(int cx=0;cx<16;cx++){
          for(int cz=0;cz<16;cz++)
            chunks[cx][cz]=new Chunk(this);
        }
        WorldPopulator.populate(this, seed, type);
        outSave();
      }else{
        inRead();
      }
    }
    catch(Exception e){
      server.err(e);
    }
  }
  private void inRead()throws Exception{
    for(int cx=0;cx<16;cx++){
      for(int cz=0;cz<16;cz++){
        Chunk oc=new Chunk(this);
        File file=new File(chunksDir, Integer.toHexString(cx)+'-'+Integer.toHexString(cz)+".chunk");
        MyReader is=new MyReader(file);
        String magic=is.readLength(17);
        if(!magic.equals("SPIDERMINE_CHUNK\n")){
          //TODO what to do if chunk corrupted
          is.close();
          throw new Exception("CHUNK_FILE_CORRUPTED");
        }
        for(int x=0;x<16;x++){
          String id=is.readLength(8);;
          if(!id.substring(0, 5).equals("PLANE")||!id.substring(6).equals("\n\n")){
            //TODO what to do if chunk corrupted
            is.close();
            throw new Exception("CHUNK_FILE_CORRUPTED");
          }
          if((id.charAt(5)+"")!=Integer.toHexString(x)){
            //TODO when the planes are mixed up;
          }
          for(int z=0;z<16;z++){
            String idz=is.readLength(8);
            if(!id.substring(0, 6).equals("PILLAR")||id.charAt(7)!='\n'){
              //TODO what to do if chunk corrupted
              is.close();
              throw new Exception("CHUNK_FILE_CORRUPTED");
            }
            if((idz.charAt(6)+"")!=Integer.toHexString(z)){
              //TODO when the pillars are mixed up
            }
            String pillar=is.readLength(256);
            for(int y=0;y<128;y++){
              oc.setBlock(x, y, z, new Block(pillar.charAt(y*2), pillar.charAt(y*2+1)), false);
            }
          }
        }
        is.close();
        chunks[cx][cz]=oc;
      }
    }
  }
  private void outSave()throws Exception{
    chunksDir.mkdir();
    for(int cx=0;cx<16;cx++){
      for(int cz=0;cz<16;cz++){
        File chunkFile=new File(chunksDir, Integer.toHexString(cx)+'-'+Integer.toHexString(cz)+".chunk");
        chunkFile.delete();
        OutputStreamWriter os=new OutputStreamWriter(new FileOutputStream(chunkFile));
        Chunk c=chunks[cx][cz];
        //count: 67712+17=>67729 bytes approx. 66 KB
        os.append("SPIDERMINE_CHUNK\n");//magic
        for(int x=0;x<16;x++){//count: 4232*16=>67712 bytes
          os.write("PLANE"+Integer.toHexString(x)+"\n\n");//length: 8
          for(int z=0;z<16;z++){//count: 264*16=>4224 bytes
            os.write("PILLAR"+Integer.toHexString(z)+"\n");//length: 8
            for(int y=0;y<128;y++){//count: 128*2=>256 bytes
              os.write(c.getBlock(x, y, z).getId());//1
              os.write(c.getBlock(x, y, z).getDamage());//1
            }
          }
        }
        os.flush();
        os.close();
      }
    }
  }
  public void setBlock(Position p, Block bl, boolean update){
    chunks[(int) (p.getX()/16)][(int) (p.getZ()/16)].setBlock((int)p.getX(), (int)p.getY(), (int)p.getZ(), bl, update);
  }
  public Block getBlock(Position p){
    return chunks[(int) (p.getX()/16)][(int) (p.getZ()/16)].getBlock((int) p.getX(), (int) p.getY(), (int) p.getZ()); 
  }
  @Override public int hashCode(){//just for fun
    int ret=0xb60a;
    ret*=0xd809;
    ret+=this.dir.hashCode();
    ret*=0xd809;
    ret+=(int)this.type^(this.type>>>32);
    ret*=0xd809;
    return ret;
  }
}

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