[WE] Pasting and undo-ing schematics

The title pretty much explains it.
How do I paste a schematic with the World Edit plugin and how do I undo it afterwards?

Thank you very much in advanced.

 

//undo (?)

 

I mean with code ^^
I don't want it spamming //Paste, //undo

 

Link

 

I've read what it says on there, but it also says: "whether anything was undone" Meaning it's not the action of doing //undo and //redo or am I totally in the wrong here?

 

It would return false if there was nothing left to undo.

 

Garris0n
I see, but the edit session needs to return something. What should it return? newBlockBag?
And how would I paste a schematic?
I've found some old threads about it but I get this certain error that tells me that the DataException class doesn't exist. Is there something wrong with my WorldEdit.jar or is it the code?
Code:

Code:

            WorldEditPlugin we = (WorldEditPlugin) this.getServer().getPluginManager().getPlugin("WorldEdit");
            LocalSession localSession = we.getSession(p);//Get player session
            com.sk89q.worldedit.LocalPlayer wePlayer = we.wrapCommandSender(sender);//if sender is player //convert to localplayer
 
            SchematicFormat schematic = SchematicFormat.getFormat(new File(this.getDataFolder(), "supervip.schematic"));
            CuboidClipboard clipboard = schematic.load(new File(this.getDataFolder(), "supervip.schematic"));
            clipboard.paste(localSession.createEditSession(wePlayer), BukkitUtil.toVector(b.getLocation()), true);
        } catch (NullPointerException ex) {
            System.out.println("Schematic need to be have .schematic");
        } catch (IOException | DataException | MaxChangedBlocksException e) {
            e.printStackTrace();
        }

Before that it also gives me the error: "Multi-catches are not supported in this language level" at the catches (I tried putting them away from each other and that's what gave the no class exists error).

 

Use Java 7 if you want those.

And perhaps the DataException was done away with.

 

Garris0n okay, but if I remove the DataException then schematic.load gets an error. It needs a DataException.

 

Well here it is:
https://github.com/sk89q/worldedit/.../com/sk89q/worldedit/world/DataException.java

 

Garris0n Hmmmm, that's weird.
Is the error not because of missing the class DataException?

Error:

Code:

[15:30:32 ERROR]: Could not load 'plugins/Susanoo.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: java.lang.NoClassDefFoundError: com/sk89q/worldedit/data/DataException
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:184) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
    at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:308) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
    at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:231) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
    at org.bukkit.craftbukkit.v1_7_R1.CraftServer.loadPlugins(CraftServer.java:255) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
    at org.bukkit.craftbukkit.v1_7_R1.CraftServer.reload(CraftServer.java:628) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
    at org.bukkit.Bukkit.reload(Bukkit.java:279) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
    at org.bukkit.command.defaults.ReloadCommand.execute(ReloadCommand.java:23) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
    at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:196) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
    at org.bukkit.craftbukkit.v1_7_R1.CraftServer.dispatchCommand(CraftServer.java:542) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
    at org.bukkit.craftbukkit.v1_7_R1.CraftServer.dispatchServerCommand(CraftServer.java:529) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
    at net.minecraft.server.v1_7_R1.DedicatedServer.aw(DedicatedServer.java:286) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
    at net.minecraft.server.v1_7_R1.DedicatedServer.u(DedicatedServer.java:251) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
    at net.minecraft.server.v1_7_R1.MinecraftServer.t(MinecraftServer.java:545) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
    at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:457) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
    at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
Caused by: java.lang.NoClassDefFoundError: com/sk89q/worldedit/data/DataException
    at java.lang.Class.forName0(Native Method) ~[?:1.7.0_51]
    at java.lang.Class.forName(Class.java:270) ~[?:1.7.0_51]
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:173) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
    ... 14 more
Caused by: java.lang.ClassNotFoundException: com.sk89q.worldedit.data.DataException
    at java.net.URLClassLoader$1.run(URLClassLoader.java:366) ~[?:1.7.0_51]
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355) ~[?:1.7.0_51]
    at java.security.AccessController.doPrivileged(Native Method) ~[?:1.7.0_51]
    at java.net.URLClassLoader.findClass(URLClassLoader.java:354) ~[?:1.7.0_51]
    at org.bukkit.plugin.java.PluginClassLoader.findClass0(PluginClassLoader.java:80) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
    at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:53) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
    at java.lang.ClassLoader.loadClass(ClassLoader.java:425) ~[?:1.7.0_51]
    at java.lang.ClassLoader.loadClass(ClassLoader.java:358) ~[?:1.7.0_51]
    at java.lang.Class.forName0(Native Method) ~[?:1.7.0_51]
    at java.lang.Class.forName(Class.java:270) ~[?:1.7.0_51]
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:173) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
    ... 14 more

Code:

Code:java

        try {
            WorldEditPlugin we = (WorldEditPlugin) this.getServer().getPluginManager().getPlugin("WorldEdit");
            LocalSession localSession = we.getSession(p);//Get player session
            com.sk89q.worldedit.LocalPlayer wePlayer = we.wrapCommandSender(sender);//if sender is player //convert to localplayer
 
            SchematicFormat schematic = SchematicFormat.getFormat(new File(this.getDataFolder(), "supervip.schematic"));
            CuboidClipboard clipboard = schematic.load(new File(this.getDataFolder(), "supervip.schematic"));
            clipboard.paste(localSession.createEditSession(wePlayer), BukkitUtil.toVector(p.getLocation()), true);
        } catch (NullPointerException ex) {
            System.out.println("Schematic need to be have .schematic");
        } catch (IOException e){
            e.printStackTrace();
        }catch (DataException e){
            e.printStackTrace();
        } catch (MaxChangedBlocksException e) {
            e.printStackTrace();
        }

 

It's in the worldedit jar, are you sure you're using the latest version of worldedit?

 

Yea. I just downloaded it a day ago.. I'll try again.

 

And you're using the same version in your build path as on the server?

 

Garris0n still gives me a no class error D:

 

What is the import you're using?

 

Garris0n

Code:

import com.sk89q.worldedit.*;
import com.sk89q.worldedit.bags.BlockBag;
import com.sk89q.worldedit.bukkit.BukkitUtil;
import com.sk89q.worldedit.bukkit.BukkitWorld;
import com.sk89q.worldedit.bukkit.WorldEditPlugin;
import com.sk89q.worldedit.data.DataException;
import com.sk89q.worldedit.schematic.SchematicFormat;

 

Do you have a dependency on worldedit in your plugin?

 

Garris0n You my good sir, is the besets, most sweetest person I know. Thank you for sticking through with me on this! If you ever need anything I will gladly help you!

Though now I have the need for how to do the //undo and //redo
The EditSession statements needs a return value. Should it just return the newBlockBag?

 

What do you mean? I haven't looked at the methods and I'm not sure I understand your question.

 

Garris0n The code:

Code:java

    public EditSession undo(BlockBag newBlockBag, LocalPlayer player){
 
    }

Needs to return an EditSession, but how can I return an EditSession?

 

Where is that code coming from?

 

Garris0n
Link

But I found out that you can do worldEditPlugin.getSession(p).undo(BlockBag, LocalPlayer)
Do you know what a BlockBag and a LocaPlayer is?

 

I'm guessing LocalPlayer is a WE representation of a player and the BlockBag docs say "Represents a source to get blocks from and store removed ones.".

My recommendation is to go find the /undo command in the WE source and see how it works.

 

Garris0n I've managed to sum it down to this code by looking at the WE way of doing it.

Code:java

    public void undo(LocalSession session, LocalPlayer player) throws WorldEditException {
            EditSession undone;
          undone = session.undo(session.getBlockBag(player), player);
    }

But it seems to not be doing anything at all.

 

How are you calling it?

 

Garris0n

Code:java

 try {
BukkitPlayer localPlayer = worldEditPlugin.wrapPlayer(p);
this.undo(worldEditPlugin.getSession(p), localPlayer);
return true;
} catch(WorldEditException e){
System.out.println("WorldEditException: " + e);
}

Like that.

 

And is it returning null? Are you undoing actions on the server or that schematic pasting thing, as if that's the case perhaps the scematic pasting isn't saving history properly.

 

Garris0n
Oh that might be it. I'll try doing a //paste beforehand.

You were completely right. It's undoing correctly. It's not saving the //paste though.

EDIT:
I've tried looking through world edits code, but I cannot find anything that works for me.
I've found out that they set the clipboard so that they can later undo it, but this code seems to not work:

Code:java

                SchematicFormat format = schematic == null ? null : SchematicFormat.getFormat(schematic);
 
                    undo.setClipboard(format.load(schematic));  // Undo is a LocalSession

 

I'm not really sure where WE is actually doing it, but you could try using LocalSession#remember(EditSession).