I had this working in 1.7.2, but can't figure out what is going on in 1.8. 

 

For a custom dimension, I'm only allowing some custom creepers to spawn in it.  Rather than generate the list in biomes since i'm using the default biomes, I just did it in the custom chunkprovider.

 

I tested it and it is getting called and returning the list.  However, nothing ever spawns.  The world is set to eternal night and I've confirmed the light level is always nighttime to make sure something wierd isn't going on there.  The entities spawn just fine in other worlds so they are functional.

 

Here is the call

 

 

@Override
    public List func_177458_a(EnumCreatureType creatureType, BlockPos pos) {


        if (creatureType.equals(EnumCreatureType.MONSTER)) {
        	//System.out.println("  - creatureType : " + creatureType);
        	//System.out.println("  - monster");
        	
            List spawnableMonsterList = new ArrayList();
            
            // odds min max
            int multiplyer = 10;  // 6 worked as good balance, but wanted more
            
            // Generate the spawnlist
            //spawnableMonsterList.add(new SpawnListEntry(EntityCreeper.class, 25, 1, 5));
            spawnableMonsterList.add(new BiomeGenBase.SpawnListEntry(Creeper_Charged.class, 25, 4 * multiplyer, 8 * multiplyer));
            spawnableMonsterList.add(new BiomeGenBase.SpawnListEntry(Creeper_Red.class, 25, 10 * multiplyer, 12 * multiplyer));
            spawnableMonsterList.add(new BiomeGenBase.SpawnListEntry(Creeper_Breeder.class, 5, 1 * multiplyer, 4 * multiplyer));
            spawnableMonsterList.add(new BiomeGenBase.SpawnListEntry(Creeper_Blue.class, 5, 1 * multiplyer, 4 * multiplyer));
            spawnableMonsterList.add(new BiomeGenBase.SpawnListEntry(Creeper_Fire.class, 5, 1 * multiplyer, 4 * multiplyer));
            spawnableMonsterList.add(new BiomeGenBase.SpawnListEntry(MyEntityHumanoid.class, 5, 1 * multiplyer, 4 * multiplyer));
            
            // Return the result
            return spawnableMonsterList;
            
        } else {
        	
            return null;
            
        }

    }

 

 

Ok, just did that.

 

Struggling with what is failing thought.

 

It derails here.

    public boolean func_175732_a(EnumCreatureType p_175732_1_, BiomeGenBase.SpawnListEntry p_175732_2_, BlockPos p_175732_3_)
    {
        List list = this.getChunkProvider().func_177458_a(p_175732_1_, p_175732_3_);
        return list != null && !list.isEmpty() ? list.contains(p_175732_2_) : false;
    }

 

One iteration:

-List contains all my entities as it should.  Expanded it in Watch to verify that it has Creeper Red and it does.

-p_175732_2_ is Creeper red

- the function 'list.contains(p_175732_2_)' is returning false though.

 

Grabbed the valves from below the variables when hovering over them.  first is list, 2nd is p_175732_2_

[Creeper_Charged*(40-80):25, Creeper_Red*(100-120):25, Creeper_Breeder*(10-40):5, Creeper_Blue*(10-40):5, Creeper_Fire*(10-40):5, MyEntityHumanoid*(10-40):5]

Creeper_Red*(100-120):25

 

 

I don't see why its false.  Its probably obvious and I'm just missing it.  Hope you see something.

Slaps hand to forehead.

 

 

Thanks.  I'll change it.