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| 1 | package com.example.examplemod; | |
| 2 | ||
| 3 | import com.google.common.base.Throwables; | |
| 4 | import com.google.common.collect.ObjectArrays; | |
| 5 | import cpw.mods.fml.common.Mod; | |
| 6 | import cpw.mods.fml.common.Mod.EventHandler; | |
| 7 | import cpw.mods.fml.common.event.FMLPreInitializationEvent; | |
| 8 | import cpw.mods.fml.common.eventhandler.SubscribeEvent; | |
| 9 | import net.minecraft.world.biome.BiomeGenBase; | |
| 10 | import net.minecraft.world.gen.layer.GenLayer; | |
| 11 | import net.minecraft.world.gen.layer.GenLayerBiome; | |
| 12 | import net.minecraft.world.gen.layer.GenLayerRiverMix; | |
| 13 | import net.minecraft.world.gen.layer.MyModGenLayerAccessor; | |
| 14 | import net.minecraftforge.common.MinecraftForge; | |
| 15 | import net.minecraftforge.event.terraingen.WorldTypeEvent; | |
| 16 | ||
| 17 | import java.lang.reflect.Field; | |
| 18 | ||
| 19 | @Mod(modid = ExampleMod.MODID, version = ExampleMod.VERSION) | |
| 20 | public class ExampleMod | |
| 21 | {
| |
| 22 | public static final String MODID = "examplemod"; | |
| 23 | public static final String VERSION = "1.0"; | |
| 24 | ||
| 25 | public static BiomeGenBase myBiome; | |
| 26 | ||
| 27 | @EventHandler | |
| 28 | public void preInit(FMLPreInitializationEvent event) {
| |
| 29 | MinecraftForge.TERRAIN_GEN_BUS.register(this); | |
| 30 | ||
| 31 | myBiome = new BiomeGenBase(245) {
| |
| 32 | ||
| 33 | }; | |
| 34 | } | |
| 35 | ||
| 36 | private static Field biomePatternGeneratorChainField; | |
| 37 | private static Field biomeArrayField; | |
| 38 | ||
| 39 | static {
| |
| 40 | // TODO: SRG names for non-dev environment | |
| 41 | try {
| |
| 42 | biomePatternGeneratorChainField = GenLayerRiverMix.class.getDeclaredField("biomePatternGeneratorChain");
| |
| 43 | biomePatternGeneratorChainField.setAccessible(true); | |
| 44 | ||
| 45 | // this is just an example, there are 4 biome arrays in the class, i am not 100% what they do | |
| 46 | biomeArrayField = GenLayerBiome.class.getDeclaredField("field_151621_d");
| |
| 47 | biomeArrayField.setAccessible(true); | |
| 48 | } catch (NoSuchFieldException e) {
| |
| 49 | Throwables.propagate(e); | |
| 50 | } | |
| 51 | } | |
| 52 | ||
| 53 | @SubscribeEvent | |
| 54 | public void onGenLayerInit(WorldTypeEvent.InitBiomeGens event) throws IllegalAccessException {
| |
| 55 | GenLayer biomeLayer = event.originalBiomeGens[1]; | |
| 56 | do {
| |
| 57 | if (biomeLayer instanceof GenLayerRiverMix) {
| |
| 58 | biomeLayer = (GenLayer) biomePatternGeneratorChainField.get(biomeLayer); | |
| 59 | } else {
| |
| 60 | biomeLayer = MyModGenLayerAccessor.getParent(biomeLayer); | |
| 61 | } | |
| 62 | } while (biomeLayer != null && !(biomeLayer instanceof GenLayerBiome)); | |
| 63 | ||
| 64 | if (biomeLayer == null) {
| |
| 65 | throw new IllegalStateException("couldn't locate GenLayerBiome!");
| |
| 66 | } | |
| 67 | ||
| 68 | BiomeGenBase[] biomes = (BiomeGenBase[]) biomeArrayField.get(biomeLayer); | |
| 69 | biomes = ObjectArrays.concat(biomes, myBiome); | |
| 70 | biomeArrayField.set(biomeLayer, biomes); | |
| 71 | } | |
| 72 | ||
| 73 | } | |
| 74 | ||
| 75 | package net.minecraft.world.gen.layer; | |
| 76 | ||
| 77 | /** | |
| 78 | * @author diesieben07 | |
| 79 | */ | |
| 80 | public final class MyModGenLayerAccessor {
| |
| 81 | ||
| 82 | public static GenLayer getParent(GenLayer genLayer) {
| |
| 83 | return genLayer.parent; | |
| 84 | } | |
| 85 | ||
| 86 | } |
