Util Schematic saving, loading, and pasting

Hello guys. I have a small class that I created to save, load, and paste Minecraft schematics in game. As of right now it only supports block types, but if you want you can post an adaptation or later on I will add it in.

Code:java

 
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.i:confused:bjectInputStream;
import java.i:confused:bjectOutputStream;
import java.util.Arrays;
 
import org.bukkit.Location;
import org.bukkit.block.Block;
import org.bukkit.plugin.Plugin;
 
public class StructureAPI {
 
    Plugin plugin;
 
    public StructureAPI(Plugin pl){
        this.plugin = pl;
    }
 
    /**
    * Get all blocks between two points and return a 3d array
    */
 
    public int[][][] getStructure(Block block, Block block2){
        int minX, minZ, minY;
        int maxX, maxZ, maxY;
 
 
        //Couldv'e used Math.min()/Math.max(), but that didn't occur to me until after I finished this :D
        minX = block.getX() < block2.getX() ? block.getX() : block2.getX();
        minZ = block.getZ() < block2.getZ() ? block.getZ() : block2.getZ();
        minY = block.getY() < block2.getY() ? block.getY() : block2.getY();
 
        maxX = block.getX() > block2.getX() ? block.getX() : block2.getX();
        maxZ = block.getZ() > block2.getZ() ? block.getZ() : block2.getZ();
        maxY = block.getY() > block2.getY() ? block.getY() : block2.getY();
 
        int[][][] blocks = new int[maxX-minX+1][maxY-minY+1][maxZ-minZ+1];
 
        for(int x = minX; x <= maxX; x++){
 
            for(int y = minY; y <= maxY; y++){
 
                for(int z = minZ; z <= maxZ; z++){
 
                    Block b = block.getWorld().getBlockAt(x, y, z);
                    blocks[x-minX][y-minY][z-minZ] = b.getTypeId();
                }
            }
        }
 
        return blocks;
 
    }
 
 
    /**
    * Pastes a structure to a desired location
    */
 
    public void paste(int[][][] blocks, Location l){
        for(int x = 0; x < blocks.length; x++){
 
            for(int y = 0; y < blocks[x].length; y++){
 
                for(int z = 0; z < blocks[x][y].length; z++){
                    Location neww = l.clone();
                    neww.add(x, y, z);
                    Block b = neww.getBlock();
                    if(blocks[x][y][z] != 0){
                        b.setTypeId(blocks[x][y][z]);
                        b.getState().update(true);
                    }
                }
 
            }
        }
    }
 
    /**
    * Save a structure with a desired name
    */
 
    public void save(String name, int[][][] b){
        ObjectOutputStream oos = null;
        FileOutputStream fout = null;
 
        File f = new File(plugin.getDataFolder() + "/schematics/"+ name + ".schem");
        File dir = new File(plugin.getDataFolder() + "/schematics");
 
        try {
                dir.mkdirs();
                f.createNewFile();
        } catch (IOException e1) {
                e1.printStackTrace();
            }
 
        try{
               fout = new FileOutputStream(f);
               oos = new ObjectOutputStream(fout);
               oos.writeObject(b);
        } catch (Exception e) {
               e.printStackTrace();
        }finally {
               if(oos  != null){
                   try {
                        oos.close();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }
        }
    }
 
    /**
    * Load structure from file
    */
 
    public int[][][] load(String name){
 
        File f = new File(plugin.getDataFolder() + "/schematics/"+ name + ".schem");
 
        int[][][] loaded = new int[0][0][0];
 
        try {
            FileInputStream streamIn = new FileInputStream(f);
           ObjectInputStream objectinputstream = new ObjectInputStream(streamIn);
           loaded = (int[][][])objectinputstream.readObject();
 
           objectinputstream.close();
 
       } catch (Exception e) {
 
           e.printStackTrace();
    }
 
        return loaded;
    }
 
    /**
    * Some methods I used to test
    *
    */
 
    public void printArray(int[][][] a){
        for(int i = 0; i < a.length; i++){
            System.out.println(toString(a[I]));
        }
    }
 
    public String toString(int[][] a){
        String s = "";
        for (int row=0; row < a.length ; ++row) {
          s += Arrays.toString(a[row]) + "\n";
        }
        return s;
    }
 
 
 
}[/I]

 

You have an alternative here : http://bukkit.org/threads/pasting-loading-schematics.87129/.

 

Yes, but that requires another library.

 

@AndrewAnderVille No.
EDIT : Well, you still need jnbt, but I think it is more stable.

 

"You will need this library: http://jnbt.svn.sourceforge.net/viewvc/jnbt/" - from that post.

Either way I don't think it matters. I created something I thought was worth sharing, so I posted it.

 

Nice

 

ObjectInputStream? You're serious right?

 

What do you mean? Is there something wrong with using that ? Could you suggest an alternative?

 

You must not know how slow Java's serialisation is.

 

Yeah, but I figured that loading and saving is mostly a one time thing. After that the objects can be held in memory so it shouldn't affect that much.

 

Edit: Forgot how 2 read

@AndrewAnderVille Can you give me an explanation on the paste method? It's somewhat confusing to me.

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

Code:java

 
    public void paste(int[][][] blocks, Location l){
        //loop through x values
        for(int x = 0; x < blocks.length; x++){
            //loop through y values for the current x value
            for(int y = 0; y < blocks[x].length; y++){
                //loop through all z values for the current x and y value
                for(int z = 0; z < blocks[x][y].length; z++){
                    Location neww = l.clone();
                    //goes to new location in relation to start
                    neww.add(x, y, z);
                    Block b = neww.getBlock();
                    //checks if the block is not air
                    if(blocks[x][y][z] != 0){
                        //if it isn't it will replace it with the id at the x y z coordinate
                        b.setTypeId(blocks[x][y][z]);
                        b.getState().update(true);
                    }
                }
 
            }
        }
    }

I hope this helps a little if you have another question could you elaborate on the specifics you're having issues with ?

 

@AndrewAnderVille

I'll read over it some more, but can I paste the schematic without any block type specifics? I don't see a need for that.. Say I had created a castle or anything, and in my plugin I wanted to load and paste it at a command, what would i put for x, y, z? Thanks

 

You either use getStructure or load to get the int[][][] object. Basically the array stores the block ids. The location of the block id in the array is the location it will be when it is pasted.

 

@AndrewAnderVille I apperciate you trying to explain but you're lib is really too hard to read. I'm not a noob, and I've coded a lot of things, but this just seems a little weird. Could you point me in the right direction? Here's my code so far.

Code:

StructureAPI.load("end");
            StructureAPI.paste(/* what goes here ;-; */, p.getLocation());

Your API is very confusing to me, please help and point me in the right direction. My code is in the other post ;-;

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

The load method returns what you put in "/* what goes here ;-; */". So you should have something like this.

Code:

            StructureAPI.paste(StructureAPI.load("end"), p.getLocation());

or load the 3d array before hand, store it and do something like

Code:

            StructureAPI.paste(end, p.getLocation());

Where 'end' is an int[][][]

 

Thank you man Sorry for not understanding xD

@AndrewAnderVille

Alright, I got the paste thing to work. But, the plugin can't seem to get the file? I created a file in the server folder called "schematics" and put a .schematic file from WorldEdit into it, assuming .schem and .schematic are the same.. Anyadvice?

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

This is just a simple schematic system. It's different than world edit format. I used this for a private project, however this util http://bukkit.org/threads/pasting-loading-schematics.87129/ can load and paste world edit format, but it does not save from the world.

 

@AndrewAnderVille

Yeah, i've looked at that util. It's just I was confused with the lib I downloaded, there wasn't a jar.
Anyways, is there anyway I can create schems that will work with this util, or do you has a tutorial on how to get the lib with the plugin for that one?

EDIT: If you use McEdit for the schem, I'll use that. xD

 

This is really helpful, thanks xxx