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Random mob spawn onItemUse


AzureusNation123

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Is there a way to make a random mob spawn with onItemUse?

 

This is what i have so far, but not sure how to finish it.

 

Item Class

package com.azureusnation.mod.cards.unknown;

import java.util.List;

import net.minecraft.block.Block;
import net.minecraft.client.renderer.texture.IconRegister;
import net.minecraft.entity.monster.EntitySkeleton;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.util.MathHelper;
import net.minecraft.world.World;

import com.azureusnation.mod.Main;
import com.azureusnation.mod.ModInfo;
import com.azureusnation.mod.cards.main.CardDescriptions;
import com.azureusnation.mod.cards.main.Name;
import com.azureusnation.mod.cards.main.logic.RandomMob;
import com.azureusnation.mod.cards.main.misc.Icon;
import com.azureusnation.mod.cards.main.misc.Rarity;

import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;

public class UnknownMob extends Item {

public UnknownMob(int id) {
	super(id);
	this.setUnlocalizedName(Name.unknownMob_unlocalizedName);
	this.setMaxStackSize(16);
	this.setCreativeTab(Main.unknownTab);
}

public boolean onItemUse(ItemStack par1ItemStack, EntityPlayer par3EntityPlayer, World par2World, int x, int y, int z, int side, float xOffset, float yOffset, float zOffSet)
{
	if (!par2World.isRemote)
	{
		if (!par3EntityPlayer.capabilities.isCreativeMode)
		{
			--par1ItemStack.stackSize;
		}

		if (par2World.getBlockId(x, y, z) == 0 && (par2World.getBlockId(x, y, z) == Block.grass.blockID || par2World.getBlockId(x, y, z) == Block.stone.blockID || par2World.getBlockId(x, y, z) == Block.dirt.blockID || par2World.getBlockId(x, y, z) == Block.sand.blockID))
		{
			EntitySkeleton ent = new EntitySkeleton(par2World);
			ent.setLocationAndAngles(x, y + 1, z, MathHelper.wrapAngleTo180_float(par2World.rand.nextFloat() * 360.0F), 0.0F);
			par2World.spawnEntityInWorld(ent);
		}

		par2World.playSoundAtEntity(par3EntityPlayer, ModInfo.ID.toLowerCase()+":card", 1.0F, 1.0F);

	}
	return true;
}

@SideOnly(Side.CLIENT)
public boolean hasEffect(ItemStack par1ItemStack)
{
	return true;
}

public void addInformation(ItemStack par1ItemStack, EntityPlayer par2EntityPlayer, List par3List, boolean par4)
{
	par3List.add(Rarity.Unknown);
	par3List.add(CardDescriptions.UnknownHoe);
}

@Override
@SideOnly(Side.CLIENT)
public void registerIcons(IconRegister icon)
{    	
	itemIcon = icon.registerIcon(Icon.Unknown);
}
}

 

Random Selector Class

package com.azureusnation.mod.cards.main.logic;

import java.util.Random;

import net.minecraft.entity.EntityLiving;
import net.minecraft.entity.monster.EntityBlaze;
import net.minecraft.entity.monster.EntityCaveSpider;
import net.minecraft.entity.monster.EntityCreeper;
import net.minecraft.entity.monster.EntityEnderman;
import net.minecraft.entity.monster.EntityGhast;
import net.minecraft.entity.monster.EntityGiantZombie;
import net.minecraft.entity.monster.EntityGolem;
import net.minecraft.entity.monster.EntityIronGolem;
import net.minecraft.entity.monster.EntityMagmaCube;
import net.minecraft.entity.monster.EntityPigZombie;
import net.minecraft.entity.monster.EntitySilverfish;
import net.minecraft.entity.monster.EntitySkeleton;
import net.minecraft.entity.monster.EntitySlime;
import net.minecraft.entity.monster.EntitySnowman;
import net.minecraft.entity.monster.EntitySpider;
import net.minecraft.entity.monster.EntityWitch;

public class RandomMob
{
private static Random random = new Random();

private static final EntityLiving EntityBlaze = new EntityBlaze(null);
private static final EntityLiving EntityCaveSpider = new EntityCaveSpider(null);
private static final EntityLiving EntityCreeper = new EntityCreeper(null);
private static final EntityLiving EntityEnderman = new EntityEnderman(null);
private static final EntityLiving EntityGhast = new EntityGhast(null);
private static final EntityLiving EntityGiantZombie = new EntityGiantZombie(null);
private static final EntityLiving EntityIronGolem = new EntityIronGolem(null);
private static final EntityLiving EntityMagmaCube = new EntityMagmaCube(null);
private static final EntityLiving EntityPigZombie = new EntityPigZombie(null);
private static final EntityLiving EntitySilverfish = new EntitySilverfish(null);
private static final EntityLiving EntitySkeleton = new EntitySkeleton(null);
private static final EntityLiving EntitySlime = new EntitySlime(null);
private static final EntityLiving EntitySnowman = new EntitySnowman(null);
private static final EntityLiving EntitySpider = new EntitySpider(null);
private static final EntityLiving EntityWitch = new EntityWitch(null);

private static EntityLiving Mob [] =
	{
	EntityBlaze,
	EntityCaveSpider,
	EntityCreeper,
	EntityEnderman,
	EntityGhast,
	EntityGiantZombie,
	EntityIronGolem,
	EntityMagmaCube,
	EntityPigZombie,
	EntitySilverfish,
	EntitySkeleton,
	EntitySlime,
	EntitySnowman,
	EntitySpider,
	EntityWitch,
	};

public static void Mob()
{

}
}

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Without actually reading threw your code it should be as simple as making a list, shuffling the list, and then pulling out a random item from the list. You'll want to store either new Entity instances or classes in the list. Then do the rest after getting a valid Entity from the list.

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Replying with the code I gave you on IRC so people seeing this topic in the future can see

 

/**
* Item Author: Katrina S
* nekosune
**/


package com.nekokittygames.modjam.UnDeath;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;

import net.minecraft.block.Block;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityEggInfo;
import net.minecraft.entity.EntityList;
import net.minecraft.entity.EntityLiving;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.EntityLivingData;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.util.Facing;
import net.minecraft.util.MathHelper;
import net.minecraft.world.World;

public class TestItem extends Item {

        public TestItem(int par1) {
                super(par1);
                setMaxStackSize(64);
                setCreativeTab(CreativeTabs.tabMisc);
                setUnlocalizedName("testSpawner");
                func_111206_d("undeath:DebugItem");
        }
        public boolean onItemUse(ItemStack par1ItemStack, EntityPlayer par3EntityPlayer, World par2World, int x, int y, int z, int side, float xOffset, float yOffset, float zOffSet)
        {
                if (!par2World.isRemote)
                {
                        int i1 = par2World.getBlockId(x, y, z);
            x += Facing.offsetsXForSide[side];
            y += Facing.offsetsYForSide[side];
            z += Facing.offsetsZForSide[side];
            double d0 = 0.0D;

            if (side == 1 && Block.blocksList[i1] != null && Block.blocksList[i1].getRenderType() == 11)
            {
                d0 = 0.5D;
            }
                        Iterator iterator = EntityList.entityEggs.values().iterator();
                        List<Integer> ids=new ArrayList<Integer>();
                        while (iterator.hasNext())
                        {
                            EntityEggInfo entityegginfo = (EntityEggInfo)iterator.next();
                            ids.add(entityegginfo.spawnedID);
                        }
                        // shuffle and pick from ids
                        Collections.shuffle(ids);
                        int id=ids.get(0);
                        Entity entity = null;
                        entity = EntityList.createEntityByID(id,par2World);
                         
                        if (entity != null && entity instanceof EntityLivingBase)
                        {
                                EntityLiving entityliving = (EntityLiving)entity;
                        entity.setLocationAndAngles(x+0.5d, y+0.5d, z+0.5d, MathHelper.wrapAngleTo180_float(par2World.rand.nextFloat() * 360.0F), 0.0F);
                                            entityliving.rotationYawHead = entityliving.rotationYaw;
                                            entityliving.renderYawOffset = entityliving.rotationYaw;
                                            entityliving.func_110161_a((EntityLivingData)null);
                                           
                                            par2World.spawnEntityInWorld(entity);
                                            entityliving.playLivingSound();
                        }
                       
                }
                return true;
        }

}

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