I need to create an invisible barrier on my server through which the player will be able to pass freely but monsters can't, I figured I'd do it with a block created in mcraft but I was able to create only an invisible block through which you can pass or not, but everyone or no one can pass through, I need division players yes mobs no In mcreator I created something like this

 

package net.mcreator.test.block;

import net.minecraft.world.phys.shapes.VoxelShape;
import net.minecraft.world.phys.shapes.Shapes;
import net.minecraft.world.phys.shapes.CollisionContext;
import net.minecraft.world.level.storage.loot.LootContext;
import net.minecraft.world.level.pathfinder.BlockPathTypes;
import net.minecraft.world.level.material.Material;
import net.minecraft.world.level.block.state.BlockState;
import net.minecraft.world.level.block.state.BlockBehaviour;
import net.minecraft.world.level.block.SoundType;
import net.minecraft.world.level.block.Block;
import net.minecraft.world.level.BlockGetter;
import net.minecraft.world.item.ItemStack;
import net.minecraft.world.entity.Mob;
import net.minecraft.core.BlockPos;

import java.util.List;
import java.util.Collections;

public class NiewidzialnyblokBlock extends Block {
	public NiewidzialnyblokBlock() {
		super(BlockBehaviour.Properties.of(Material.GLASS).sound(SoundType.GRAVEL).strength(1f, 10f).noCollission().noOcclusion().isRedstoneConductor((bs, br, bp) -> false));
	}

	@Override
	public boolean propagatesSkylightDown(BlockState state, BlockGetter reader, BlockPos pos) {
		return true;
	}

	@Override
	public int getLightBlock(BlockState state, BlockGetter worldIn, BlockPos pos) {
		return 0;
	}

	@Override
	public VoxelShape getVisualShape(BlockState state, BlockGetter world, BlockPos pos, CollisionContext context) {
		return Shapes.empty();
	}

	@Override
	public BlockPathTypes getBlockPathType(BlockState state, BlockGetter world, BlockPos pos, Mob entity) {
		return BlockPathTypes.BLOCKED;
	}

	@Override
	public List<ItemStack> getDrops(BlockState state, LootContext.Builder builder) {
		List<ItemStack> dropsOriginal = super.getDrops(state, builder);
		if (!dropsOriginal.isEmpty())
			return dropsOriginal;
		return Collections.singletonList(new ItemStack(this, 1));
	}
}

 

responsible for collisions or lack thereof .noCollision() parameter, how to split it between players and mobs? if you have any other idea how to create a barrier that lets players through and mobs don't, you can write below

See how Dark Utils does it.