Entity Spawning question

[GmaN98]

I have searched through the site but I haven't really found a concrete answer as I am working a mod that relies heavily on NPCs spawning on their own in the world. I am pretty new to modding and I have spent all day building the NPC, adding its AI, but for the life of me I cant figure out how to go about making sure it spawns when the world generates. Any and all suggestions are super welcome.

[Animefan8888]

How do you want them to spawn, normally, or at certain positions? If the first arenyou extending the vanilla villager classes?

[GmaN98]

I pretty much want them to spawn naturally as the world loads like animals and villagers. Actually this class is extending EntityCreature at the moment.

[Animefan8888]

I dont have a workspace, but you could search for where getCanSpawnHere and see where it is called. Look around and see what other stuff is checked.

[GmaN98]

Like as in look around in Forge, or on this site.

 

Also I did run into your Github from another forum earlier tonight and I just want to say thank you for the help it has given me tonight. You are awesome!

[Animefan8888]

  On 8/26/2016 at 5:50 AM, GmaN98 said:

Like as in look around in Forge, or on this site.

 

Also I did run into your Github from another forum earlier tonight and I just want to say thank you for the help it has given me tonight. You are awesome!

Oh your welcome i made that because people have a lot of difficulty with those things. I meant use the search feature in your IDE.

[GmaN98]

I use eclipse so Ill have to look that up too.

 

 

And I love how you code, you made everything more clearer. If it wasn't for you, id still be back at the beginning.

[Animefan8888]

  On 8/26/2016 at 5:59 AM, GmaN98 said:

I use eclipse so Ill have to look that up too.

 

 

And I love how you code, you made everything more clearer. If it wasn't for you, id still be back at the beginning.

I put the comments there for people looking at that code if what i code isnt open source i dont add those unless i need it for myself.

[GmaN98]

ok so I found getCanSpawnHere in EntityLiving so would it be safe to say I can apply that code to the actual Npc class, or would I have to make a separate class just to get it to spawn

[Animefan8888]

What you should do is look for where it is being called not where it is being made/overriden. This way you can check the other requirements for an entity to spawn. As i dont know what else is checked, but you should look at the super method of getCanSpawnHere and override it if one of those is a problem.

[GmaN98]

This is seriously going to make my head explode....

[Matryoshika]

You can simply add them to the spawnableCreatureList from the BiomeEvent#CreateDecorator event.

Create the event-handler, subscribe to the event. The passed argument BiomeGenBase is the biome in question.

Check if the biome is ok for your entity to spawn in, and then call biome.spawnableCreatureList.add(new Biome.SpawnListEntry(YourEntity.class, weight, min group count, max group count));

[Choonster]

  On 8/26/2016 at 8:18 AM, Matryoshika said:

You can simply add them to the spawnableCreatureList from the BiomeEvent#CreateDecorator event.

Create the event-handler, subscribe to the event. The passed argument BiomeGenBase is the biome in question.

Check if the biome is ok for your entity to spawn in, and then call biome.spawnableCreatureList.add(new Biome.SpawnListEntry(YourEntity.class, weight, min group count, max group count));

 

I'd recommend using

EntityRegistry.addSpawn

instead of the event handler, this adds an entry for your mob to the appropriate spawn list of each

Biome

you specified.

[Matryoshika]

  On 8/26/2016 at 8:57 AM, Choonster said:

I'd recommend using

EntityRegistry.addSpawn

instead of the event handler, this adds an entry for your mob to the appropriate spawn list of each

Biome

you specified.

>_< Forgot about the EntityRegistry way. Thanks for reminding me.

[GmaN98]

Can I add that to the Npc entity class or would I have to make that its own class like EntitySpawn?

[Choonster]

  On 8/26/2016 at 2:43 PM, GmaN98 said:

Can I add that to the Npc entity class or would I have to make that its own class like EntitySpawn?

 

You should have a class called something like

ModEntities

(the name doesn't really matter) that registers all of your entity classes, add the spawn from this class.

[GmaN98]

Ok I have created that, and I am looking at other examples on how to go about writing the code for this NPC. Most I have seen are for animals and items, BUT I am also using the EntityRegistry.class file in forge as reference as well....this is going to take a while just to spawn one NPC haha!

[jeffryfisher]

As chance would have it, I just finished (I hope) debugging a goat that will mow my tall grass for me. I chose to implement its spawning along with other registration calls by adding a static method to my mob's parent class (I have a parent-child class structure because I'm planning to add similar mobs that will share code). This gets called during my main class's preInit():

 

  static protected void regEntityEtc (Class<? extends classEntityBrowser> clazz, String name, int[] egg, BiomeGenBase[] biomes) {

    int weight = 3;    // TODO: Parameterize these when I add more mob species
    int min = 2;
    int max = 4;

    EntityRegistry.registerModEntity (clazz, name, mod.getNextEntityId (), mod, 80, 3, true);
    EntityRegistry.addSpawn (clazz, weight, min, max, EnumCreatureType.CREATURE, biomes);

    // TODO: Implement egg after upgrade from mc 1.8

  }

 

As you can see, "biomes" is an array of BiomeGenBase. I chose to declare one statically in each mob's child class:

  protected static final BiomeGenBase[] biomes = { BiomeGenBase.plains, BiomeGenBase.forest, BiomeGenBase.forestHills, BiomeGenBase.savanna };

 

If you have just one mob, you can collapse my parent-child class structure into something simpler.