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How to spawn structures in underground caves


TheRPGAdventurer
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Just now, TheRPGAdventurer said:

but my structure is not a big ass dungeon, it will not be found easily because miners in survival can't see it in caves that's why It needs a cave.

Then just check if the block at your x, y, z variables is air. Because then the origin is in a cave of some sort, but will not require 7x3x7 space.

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2 minutes ago, TheRPGAdventurer said:

can you please make it easy or show me how you edit the code?

if block at x y z == AIR then
generate

That is psuedo-code not actual java code.

VANILLA MINECRAFT CLASSES ARE THE BEST RESOURCES WHEN MODDING

I will be posting 1.15.2 modding tutorials on this channel. If you want to be notified of it do the normal YouTube stuff like subscribing, ect.

Forge and vanilla BlockState generator.

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Then look for ONE air block. 

Apparently I'm a complete and utter jerk and come to this forum just like to make fun of people, be confrontational, and make your personal life miserable.  If you think this is the case, JUST REPORT ME.  Otherwise you're just going to get reported when you reply to my posts and point it out, because odds are, I was trying to be nice.

 

Exception: If you do not understand Java, I WILL NOT HELP YOU and your thread will get locked.

 

DO NOT PM ME WITH PROBLEMS. No help will be given.

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19 hours ago, Kokkie said:

if(world.getBlockState(new BlockPos(x, y, z)).getBlock() == Blocks.AIR) {
	dragonNest.generate(world, random, new BlockPos(x,y,z));
}

Should be about right...

public void generateNestUnderground(World world, Random random, int chunkX, int chunkZ, Random rand) {        
        int x = chunkX * 16 + random.nextInt(16);
        int z = chunkZ * 16 + random.nextInt(16);
        int xy = x >> 4;
        int zy = z >> 4;
        int height = world.getChunkFromChunkCoords(xy, zy).getHeight(new BlockPos(x & 15, 0, z & 15));
        int y = height - random.nextInt(55); //30;
    
        if(world.getBiomeForCoordsBody(new BlockPos(x,y,z)).getBiomeClass().equals(BiomePlains.class)) {
            if((random.nextInt(10) + 1) <= 1) {
                                        
                if(world.getBlockState(new BlockPos(x, y, z)).getBlock() == Blocks.AIR) {
                     dragonNest.generate(world, random, new BlockPos(x,y,z));
                    
                   }
              }
         }
    }

update what do you think is wrong? when I add the method to spawn caves you guys suggested it will not work but if I remove it, it randomly spawns underground.

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Well, the problem here is that you blindly pick a block below the surface. If that block isn't air, you don't generate.

Apparently I'm a complete and utter jerk and come to this forum just like to make fun of people, be confrontational, and make your personal life miserable.  If you think this is the case, JUST REPORT ME.  Otherwise you're just going to get reported when you reply to my posts and point it out, because odds are, I was trying to be nice.

 

Exception: If you do not understand Java, I WILL NOT HELP YOU and your thread will get locked.

 

DO NOT PM ME WITH PROBLEMS. No help will be given.

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Try printing the coords (with System.out) of the picked position for your structure.

 

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