Hello, i'm back from so far to mod on minecraft ( 1.6.4 ... on bukkit ) SO FAR.

I'm writting a similar version of my bukkit plugin with forge for 1.11.2 ( forge-1.11.2-13.20.1.2530-mdk ).

So one of the main thing of my mod is about one way teleport for player ( with a custom item and rightclick / leftclick event ) on single player, survival no cheat.

 

package com.kporal.lau.events;

import com.kporal.lau.init.ItemsInit;

import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.entity.player.EntityPlayerMP;
import net.minecraft.server.MinecraftServer;
import net.minecraft.util.math.BlockPos;
import net.minecraft.util.text.TextComponentString;
import net.minecraft.util.text.TextFormatting;
import net.minecraftforge.event.entity.player.PlayerInteractEvent;
import net.minecraftforge.fml.common.eventhandler.EventPriority;
import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;

public class OnPlayerInteract {
	
	@SubscribeEvent ( priority = EventPriority.HIGH )
	public void onPlayerRightClick( PlayerInteractEvent.RightClickBlock e ) {
		
		EntityPlayer p = e.getEntityPlayer();
		
		if( p.getHeldItemMainhand().getItem() == ItemsInit.windstaff ) {
			
			p.setSpawnPoint( e.getPos(), true );
			p.sendStatusMessage( new TextComponentString( TextFormatting.RED + "#LAU:" + TextFormatting.WHITE + " Teleport point set at " + e.getPos() ), true );
		}
	}
	
	@SubscribeEvent ( priority = EventPriority.HIGH )
	public void onPlayerLeftClick( PlayerInteractEvent.LeftClickEmpty e ) {
		
		EntityPlayer p = e.getEntityPlayer();
		
		if( p.getHeldItemMainhand().getItem() == ItemsInit.windstaff ) {
			
			BlockPos c = p.getBedLocation( p.dimension );
			//p.sendStatusMessage( new TextComponentString( TextFormatting.RED + "#LAU:" + TextFormatting.WHITE + " Telporting to " + c ), true );
			
			//c = p.getLookVec().
			//p.capabilities.allowFlying = true;
			//p.velocityChanged = true;
			//p.setPositionAndUpdate( c.getX(), c.getY(), c.getZ() );
			//net.minecraftforge.event.entity.living.EnderTeleportEvent tp = new net.minecraftforge.event.entity.living.EnderTeleportEvent(p, c.getX(), c.getY(), c.getZ(), 0);
	        //if (net.minecraftforge.common.MinecraftForge.EVENT_BUS.post(tp)) return;
			//p.attemptTeleport( c.getX(), c.getY(), c.getZ() );
			
			//(( EntityPlayerMP ) p).connection.setPlayerLocation( c.getX(), c.getY(), c.getZ(), p.rotationYaw, p.rotationPitch );
			//p.velocityChanged = false;
			//p.capabilities.allowFlying = false;
			
			
			//p.setGameType( GameType.CREATIVE );
			
			//if( !p.world.isRemote ) {
				//(( EntityPlayerMP ) p).connection.setPlayerLocation( c.getX(), c.getY(), c.getZ() + 1, p.rotationYaw, p.rotationPitch );
				//(( EntityPlayerMP ) p).respawnPlayer();
			//}
			
			//p.respawnPlayer();
			//p.capabilities.isCreativeMode = true;
			//p.setPositionAndUpdate( c.getX(), c.getY(), c.getZ() + 1 );
			//p.capabilities.isCreativeMode = false;
			//p.setGameType( GameType.SURVIVAL );
			
			//p.getServer().getCommandManager().executeCommand( p.getServer(), "tp " + c.getX() + " " + c.getY() + " " + c.getZ() );
			//p.getServer().getCommandManager().
			//p.getEntityWorld().getMinecraftServer().getCommandManager().executeCommand( p.getServer(), "/tp " + c.getX() + " " + c.getY() + " " + c.getZ() );
			
			p.sendStatusMessage( new TextComponentString( p.getEntityWorld().getMinecraftServer() + " " + p.getServer() + " " + p.getEntityWorld() ), true );
			
			//MinecraftServer.getCommandManager().executeCommand( p, "/tp 0 0 0");
			
		}
	}
}

 

Like you can see, i've tryed a lot of method to teleport the player, but nothing work or getting "player moved wrongly" every time, so rather than trying to do something weird in my code, i simply try a send a /tp command but ...

I think ... my error is here : p.getEntityWorld().getMinecraftServer() / p.getServer(), where each time return a null pointer, i'm stuck 2 day i'm trying to teleport my little boy without succes, if anyone can help me ... thank a lot !

Edited November 19, 20177 yr by Kporal
Editing title as solved

This way work but only in singleplayer with cheat allowed ... :

@SubscribeEvent ( priority = EventPriority.HIGH )
public void onPlayerLeftClick( PlayerInteractEvent.LeftClickEmpty e ) {
	
	EntityPlayer p = e.getEntityPlayer();
	
	if( p.getHeldItemMainhand().getItem() == ItemsInit.windstaff ) {
		
		BlockPos c = p.getBedLocation( p.dimension );
		double px = c.getX() + 0.5;
		double py = c.getY();
		double pz = c.getZ() + 0.5;
		Minecraft.getMinecraft().player.sendChatMessage( "/tp " + px + " " + py + " " + pz );
		
	}
}

So i would like to be able to teleport, in singleplayer but also in MP ( i know how to proceed for MP ), but keeping stuck at how teleport the player without cheat enabled with command ( from server no client to bypass cheat mode )

Ok, i've made some mistake ... now it work without cheat mode enabled ( should work too in MP ) :

package com.kporal.lau.events;

import com.kporal.lau.init.ItemsInit;

import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.server.MinecraftServer;
import net.minecraft.util.math.BlockPos;
import net.minecraft.util.text.TextComponentString;
import net.minecraft.util.text.TextFormatting;
import net.minecraftforge.event.entity.player.PlayerInteractEvent;
import net.minecraftforge.fml.common.FMLCommonHandler;
import net.minecraftforge.fml.common.eventhandler.EventPriority;
import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;

public class OnPlayerInteract {
	
	@SubscribeEvent ( priority = EventPriority.HIGH )
	public void onPlayerRightClick( PlayerInteractEvent.RightClickBlock e ) {
		
		EntityPlayer p = e.getEntityPlayer();
		
		if( p.getHeldItemMainhand().getItem() == ItemsInit.windstaff ) {

			p.setSpawnPoint( e.getPos(), true );
			p.sendStatusMessage( new TextComponentString( TextFormatting.RED + "#LAU:" + TextFormatting.WHITE + " Teleport point set at " + e.getPos() ), true );
		}
	}
	
	@SubscribeEvent ( priority = EventPriority.HIGH )
	public void onPlayerLeftClick( PlayerInteractEvent.LeftClickEmpty e ) {
		
		EntityPlayer p = e.getEntityPlayer();
		
		if( p.getHeldItemMainhand().getItem() == ItemsInit.windstaff ) {
			
			BlockPos c = p.getBedLocation( p.dimension );
			double px = c.getX() + 0.5;
			double py = c.getY() + 1;
			double pz = c.getZ() + 0.5;
			
			MinecraftServer s = FMLCommonHandler.instance().getMinecraftServerInstance();
			s.getCommandManager().executeCommand( s, "/tp " + p.getName() + " " + px + " " + py + " " + pz );
			p.sendStatusMessage( new TextComponentString( TextFormatting.RED + "#LAU:" + TextFormatting.WHITE + " Telporting to " + c ), true );
		}
	}
}

Hope this can help someone else