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[1.9] Dragon wont move

Posted March 30, 20169 yr

Hello, I have a problem with the Ender Dragon that I spawn with my mod, when it spawn, it does nothing, it just stand still waving the wings and you can't attack him or anything.

I was told that in 1.9 it could be for something related with the phases of the dragon, but I'm not sure how should I set that phase before spawning the dragon in the world.

Any ideas?

This is how I spawned it with the code I had for 1.7

entityX1 = new EntityDragon(world);
   		entityX1.setPosition(pos.getX(), pos.getY()+2, pos.getZ());
   		world.spawnEntityInWorld(entityX1);

Quote

March 31, 20169 yr

First off, all that needs to be in a if(!worldObj.isRemote)

Second off, we're going to need a lot more code than that to help you. There's so many potential causes for something like that man, just post your source

"you seem to be THE best modder I've seen imo."

~spynathan

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Quote

March 31, 20169 yr

It's most likely that you are spawning the dragon on client side where you should be spawning it on server side

Quote

March 31, 20169 yr

Author

It's called when a block is break, it works on 1.7 and it works ok on servers from what I have seen also.

This part of the code, the one that can spawn the dragon, is called when the block that triggers it gets powered.

    public void onNeighborBlockChange(World world, BlockPos pos, IBlockState state, Block neighborBlock)
    {
        if (!world.isRemote)
        {
            if (this.activated && !world.isBlockPowered(pos))
            {
                world.scheduleBlockUpdate(pos, this, 4, 1);
            }
            else if (!this.activated && world.isBlockPowered(pos))
            {
                //world.setBlock(x, y, z, Blocks.lit_redstone_lamp, 0, 2);
            	gotActivated(world, pos);
            }
        }
    }

gotActivated is a little bit of code to decide different possibilities:

    public void gotActivated(World world, BlockPos pos)
    {
    	//Let's remove the water
    	MAMBuilder.placeBlock(world, pos.add(0,+2,0), Blocks.air.getDefaultState());
    	
    	//Let's remove the pressure plate
    	MAMBuilder.placeBlock(world, pos.add(0,+1,0), Blocks.air.getDefaultState());
    	
    	//Let's remove the block itself
    	MAMBuilder.placeBlock(world, pos, Blocks.air.getDefaultState());

    	
    	final int randOutput = (int) (Math.random() * 17);
    	
    	if(randOutput<=
    	{
    		goodThings(world, pos);
    	}
    	else if (randOutput>=9 && randOutput <=12)
    	{
    		regularThings(world, pos);
    	}
    	else
    	{
    		badThings(world, pos);
    	}
        
    }

badThings is the one that has the chance to spawn dragons.

public static void badThings(World world, BlockPos pos)
    {
    	
    	MAMBuilder.cleanAreaFromBlockBis(world, pos, 5, 5, 7, 0);
    	
    	final int badTimes = (int) (Math.random() * 6)+3;
    	
        for(int a=0; a <=badTimes; a++)
        {
    	
    	
	Entity entityX1;

	final int j = (int) ((Math.random() * 15)+5);

	final int rand = (int) (Math.random() * 19);

	if (ModInfo.DEBUG_MODE){ System.out.println("<< IrishLuck - SM IS: "+rand+" >>"); }
   	
   	switch(rand)
   	{
   	case 0: //BLAZE
   		for(int i=1; i<=j; i++) { entityX1 = new EntityBlaze(world);Stuff.setEntityPos(entityX1, pos.getX(), pos.getY(), pos.getZ());world.spawnEntityInWorld(entityX1);	}
   	break;
   	
   	case 1: //CAVE SPIDER
   		for(int i=1; i<=j; i++) { entityX1 = new EntityCaveSpider(world);Stuff.setEntityPos(entityX1, pos.getX(), pos.getY(), pos.getZ());world.spawnEntityInWorld(entityX1);	}
   	break;
   	
   	case 2: //CREEPER
   		for(int i=1; i<=j; i++) { entityX1 = new EntityCreeper(world);Stuff.setEntityPos(entityX1, pos.getX(), pos.getY(), pos.getZ());world.spawnEntityInWorld(entityX1);	}
   	break;
   	
   	case 3: //ENDERMAN
   		for(int i=1; i<=j; i++) { entityX1 = new EntityEnderman(world);Stuff.setEntityPos(entityX1, pos.getX(), pos.getY(), pos.getZ());world.spawnEntityInWorld(entityX1);	}
   	break;
   	
   	case 4: //GHAST
   		for(int i=1; i<=j; i++) { entityX1 = new EntityGhast(world);Stuff.setEntityPos(entityX1, pos.getX(), pos.getY(), pos.getZ());world.spawnEntityInWorld(entityX1);	}
   	break;
   	
   	case 5: //IRON GOLEM
   		for(int i=1; i<=j; i++) { entityX1 = new EntityIronGolem(world);Stuff.setEntityPos(entityX1, pos.getX(), pos.getY(), pos.getZ());world.spawnEntityInWorld(entityX1);	}
   	break;
   	
   	case 6: //MAGMA CUBE
   		for(int i=1; i<=j; i++) { entityX1 = new EntityMagmaCube(world);Stuff.setEntityPos(entityX1, pos.getX(), pos.getY(), pos.getZ());world.spawnEntityInWorld(entityX1);	}
   	break;
   	
   	case 7: //PIG ZOMBIE
   		for(int i=1; i<=j; i++) { entityX1 = new EntityPigZombie(world);Stuff.setEntityPos(entityX1, pos.getX(), pos.getY(), pos.getZ());world.spawnEntityInWorld(entityX1);	}
   	break;
   	
   	case 8: //SILVERFISH
   		for(int i=1; i<=j; i++) { entityX1 = new EntitySilverfish(world);Stuff.setEntityPos(entityX1, pos.getX(), pos.getY(), pos.getZ());world.spawnEntityInWorld(entityX1);	}
   	break;
   	
   	case 9: //SKELETON
   		for(int i=1; i<=j; i++) { entityX1 = new EntitySkeleton(world);Stuff.setEntityPos(entityX1, pos.getX(), pos.getY(), pos.getZ());world.spawnEntityInWorld(entityX1);	}
   	break;
   	
   	case 10: //SLIME
   		for(int i=1; i<=j; i++) { entityX1 = new EntitySlime(world);Stuff.setEntityPos(entityX1, pos.getX(), pos.getY(), pos.getZ());world.spawnEntityInWorld(entityX1);	}
   	break;
   	
   	case 11: //SNOWMAN
   		for(int i=1; i<=j; i++) { entityX1 = new EntitySnowman(world);Stuff.setEntityPos(entityX1, pos.getX(), pos.getY(), pos.getZ());world.spawnEntityInWorld(entityX1);	}
   	break;
   	
   	case 12: //SPIDER
   		for(int i=1; i<=j; i++) { entityX1 = new EntitySpider(world);Stuff.setEntityPos(entityX1, pos.getX(), pos.getY(), pos.getZ());world.spawnEntityInWorld(entityX1);	}
   	break;
   	
   	case 13: //WITCH
   		for(int i=1; i<=j; i++) { entityX1 = new EntityWitch(world);Stuff.setEntityPos(entityX1, pos.getX(), pos.getY(), pos.getZ());world.spawnEntityInWorld(entityX1);	}
   	break;
   	
   	case 14: //ZOMBIE
   		for(int i=1; i<=j; i++) { entityX1 = new EntityZombie(world);Stuff.setEntityPos(entityX1, pos.getX(), pos.getY(), pos.getZ());world.spawnEntityInWorld(entityX1);	}
   	break;
   	
   	case 15: //SHULKER
   		for(int i=1; i<=j; i++) { entityX1 = new EntityShulker(world);Stuff.setEntityPos(entityX1, pos.getX(), pos.getY(), pos.getZ());world.spawnEntityInWorld(entityX1);	}
   	break;
   	
   	case 16: //ENDERMITE
   		for(int i=1; i<=j; i++) { entityX1 = new EntityEndermite(world);Stuff.setEntityPos(entityX1, pos.getX(), pos.getY(), pos.getZ());world.spawnEntityInWorld(entityX1);	}
   	break;
   	
   	case 17: //WHITER
   		entityX1 = new EntityWither(world);Stuff.setEntityPos(entityX1, pos.getX(), pos.getY()+2, pos.getZ());world.spawnEntityInWorld(entityX1);
   	break;
   	
   	case 18: //DRAGON
   		entityX1 = new EntityDragon(world);
   		Stuff.setEntityPos(entityX1, pos.getX(), pos.getY()+2, pos.getZ());
   		world.spawnEntityInWorld(entityX1);
   	break;
   	
   	default: 
   		for(int i=1; i<=j; i++) { entityX1 = new EntityBlaze(world);Stuff.setEntityPos(entityX1, pos.getX(), pos.getY()+1, pos.getZ());world.spawnEntityInWorld(entityX1);	}

   	}


        }

Stuff.setEntityPos just do this

	 public static void setEntityPos(Entity entity, double x, double y, double z)
 {
	double doubleX = (Math.random()*2) - 1;
	double doubleZ = (Math.random()*2) - 1;

	entity.setPosition(x+0.5+doubleX, y+0.5, z+0.5+doubleZ);

 }

Any other mob works perfectly, either in 1.9 or 1.7, but the Dragon on 1.9 is broken somehow.

Quote

April 2, 20169 yr

Author

Anyone any hint?

I'm not sure how to set the Dragon to the correct phase, and even then, if that fixes the issue, or the dragon just wont move on the overworld.

Thanks a lot.

Quote

2 weeks later...

April 14, 20169 yr

Author

I'm trying this and still nothing. Not sure what I'm missing here.

	   		EntityDragon entityLocal = new EntityDragon(world);
   		Stuff.setEntityPos(entityLocal, pos.getX(), pos.getY()+2, pos.getZ());
   		entityLocal.getDataManager().set(entityLocal.PHASE, Integer.valueOf(PhaseList.STRAFE_PLAYER.getId()));
   		world.spawnEntityInWorld(entityLocal);

If anyone has any clue it would be great.

PS: Stuff.setEntityPos just do this

	public static void setEntityPos(Entity entity, double x, double y, double z)
{
	double doubleX = (Math.random()*2) - 1;
	double doubleZ = (Math.random()*2) - 1;

	entity.setPosition(x+0.5+doubleX, y+0.5, z+0.5+doubleZ);

}

Quote

2 weeks later...

April 27, 20169 yr

Author

Well, here is an update. Thanks to the help I got here http://www.minecraftforge.net/forum/index.php/topic,38425.0.html now I am able to spawn the Dragon with a Phase other than the 10 default and the Dragon will actually move now.

Problem is... Once spawned in the World, the dragon will flight towards 0/0 and this I have no idea how to fix, even if I do the entity to .setAttackTarget(player); it doesnt care, it just flights towards 0/0

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[1.9] Dragon wont move

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