我们本次针对矿物生成进行设计

1.在 blocks 包下新建 ZSOre 类:

在ZSOre.java 中 编写代码:

package com.Joy187.newmod.blocks;

import java.util.Random;

import com.Joy187.newmod.init.ModItems;
import net.minecraft.block.SoundType;
import net.minecraft.block.material.Material;
import net.minecraft.block.state.IBlockState;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.item.Item;

public class ZSOre extends BlockBase{
                //矿物名称      矿物材质       放在创造栏的位置
    public ZSOre(String name, Material material,CreativeTabs tab) {
        super(name, material, tab);
        setSoundType(SoundType.STONE);  //方块音效
        setHardness(4.0f);      //方块坚硬程度
        setResistance(20.0f);   //方块挖掘抗性
        setHarvestLevel("pickaxe",2);   //方块挖掘等级(铁镐为2级)
        setLightLevel(12.0f);   //方块发光度
    }

    //方块挖掘后掉落物品
    @Override
    public Item getItemDropped(IBlockState state, Random rand, int fortune){
        return ModItems.ZS_INGOT;
    }

    //物品掉落个数
    @Override
    public int quantityDropped(Random rand){
        int min = 1;
        int max = 1;
        return rand.nextInt(max) + min;
    }
}

2.ModBlocks.java 中添加矿物信息:

public static final Block ZSORE_BLOCK = new ZSOre("zsore_block", Material.ROCK, Main.BLOCK_TAB);    

3.en_us.lang中添加物品信息，blockstate等文件中添加物品信息(和第四章步骤相同)：

第三章创建方块

4.创建 world 包

word 包中新建 ModWorldGen 类:

在 ModWorldGen.java 中编写矿石生成信息:

package com.Joy187.newmod.world;

import java.util.Random;

import com.Joy187.newmod.init.ModBlocks;

import net.minecraft.block.state.IBlockState;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.World;
import net.minecraft.world.chunk.IChunkProvider;
import net.minecraft.world.gen.IChunkGenerator;
import net.minecraft.world.gen.feature.WorldGenMinable;
import net.minecraftforge.fml.common.IWorldGenerator;

public class ModWorldGen implements IWorldGenerator{

    @Override
    public void generate(Random random, int chunkX, int chunkZ, World world, IChunkGenerator chunkGenerator,IChunkProvider chunkProvider) {

        //如果在0号世界(主世界),就生成矿物
        if (world.provider.getDimension() == 0){
            generateOverworld(random, chunkX, chunkZ, world, chunkGenerator, chunkProvider);
        }
    }

    //在世界生成矿物的信息
    private void generateOverworld(Random random, int chunkX, int chunkZ, World world, IChunkGenerator chunkGenerator,IChunkProvider chunkProvider) {

        generateOre(ModBlocks.ZSORE_BLOCK.getDefaultState(), world, random, chunkX*16, chunkZ*16, 5, 32, random.nextInt(2)+3, 10);

    }
                            //生成的矿物   生成矿物的世界 生成数(随机的)  生成的x ,z坐标   Y最小,Y最大坐标在(minY,maxY)高度区间中生成矿石 矿脉大小 生成概率
    private void generateOre(IBlockState ore, World world, Random random, int x, int z, int minY, int maxY, int size, int chances) {
        int deltaY = maxY - minY;
        for (int i = 0; i < chances; i++)
        {
            BlockPos pos = new BlockPos(x+random.nextInt(16), minY+random.nextInt(deltaY), z+random.nextInt(16));

            WorldGenMinable generator = new WorldGenMinable(ore, size);
            generator.generate (world, random, pos);
        }
    }
}

Note: Minecraft世界维度: 0:主世界 1:地狱 2:末地

Minecraft 矿石生成规则

5.在Main.java 中的PreInit()中添加矿物生成注册语句:

    @EventHandler
    public static void PreInit(FMLPreInitializationEvent event)
    {
        RegistryHandler.preInitRegistries( );
        GameRegistry.registerWorldGenerator(new ModWorldGen(), 3);
    }

保存文档 -> 启动游戏 -> 创建新的世界

打开F3，我们成功在21层(Y=21)找到了我们所生成的矿石!