added lavahoarder

src/main/java/de/jottyfan/quickiemod/block/BlockEmptyLavahoarder.java

@@ -0,0 +1,135 @@
+package de.jottyfan.quickiemod.block;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Random;
+import java.util.Set;
+
+import net.minecraft.block.AbstractBlock;
+import net.minecraft.block.Block;
+import net.minecraft.block.BlockState;
+import net.minecraft.block.Blocks;
+import net.minecraft.entity.ExperienceOrbEntity;
+import net.minecraft.entity.LivingEntity;
+import net.minecraft.item.ItemStack;
+import net.minecraft.loot.context.LootWorldContext.Builder;
+import net.minecraft.registry.RegistryKey;
+import net.minecraft.registry.RegistryKeys;
+import net.minecraft.server.world.ServerWorld;
+import net.minecraft.util.Identifier;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.world.World;
+import net.minecraft.world.tick.OrderedTick;
+
+/**
+ *
+ * @author jotty
+ *
+ */
+public class BlockEmptyLavahoarder extends Block {
+
+	public BlockEmptyLavahoarder(Identifier identifier) {
+		super(AbstractBlock.Settings.create().hardness(2.5f).registryKey(RegistryKey.of(RegistryKeys.BLOCK, identifier)));
+	}
+
+	@Override
+	public List<ItemStack> getDroppedStacks(BlockState state, Builder builder) {
+		List<ItemStack> list = new ArrayList<>();
+		list.add(new ItemStack(ModBlocks.BLOCK_EMPTYLAVAHOARDER));
+		return list;
+	}
+
+	@Override
+	protected void scheduledTick(BlockState state, ServerWorld world, BlockPos pos,
+			net.minecraft.util.math.random.Random random) {
+		boolean found = BlockLavahoarder.suckLava(world, pos.north());
+		found = found || BlockLavahoarder.suckLava(world, pos.south());
+		found = found || BlockLavahoarder.suckLava(world, pos.east());
+		found = found || BlockLavahoarder.suckLava(world, pos.west());
+		found = found || BlockLavahoarder.suckLava(world, pos.up());
+		found = found || BlockLavahoarder.suckLava(world, pos.down());
+		if (found) {
+			world.setBlockState(pos, ModBlocks.BLOCK_LAVAHOARDER.getDefaultState());
+		  world.getBlockTickScheduler().scheduleTick(OrderedTick.create(ModBlocks.BLOCK_LAVAHOARDER, pos));
+		} else {
+		  world.getBlockTickScheduler().scheduleTick(OrderedTick.create(this, pos));
+		}
+	}
+
+	private static final String stringOf(BlockPos pos) {
+		StringBuilder buf = new StringBuilder();
+		buf.append(pos.getX()).append(":");
+		buf.append(pos.getY()).append(":");
+		buf.append(pos.getZ());
+		return buf.toString();
+	}
+
+	private static final BlockPos blockPosOf(String s) {
+		if (s.contains(":")) {
+			String[] parts = s.split(":");
+			if (parts.length > 2) {
+				Integer x = Integer.valueOf(parts[0]);
+				Integer y = Integer.valueOf(parts[1]);
+				Integer z = Integer.valueOf(parts[2]);
+				return new BlockPos(x, y, z);
+			} else {
+				return null;
+			}
+		} else {
+			return null;
+		}
+	}
+
+	private void findAllAttachedLavaBlocks(Set<String> list, BlockPos pos, World world, Integer counter) {
+		if (counter < 1) {
+			return;
+		} else if (Blocks.LAVA.equals(world.getBlockState(pos).getBlock())) {
+			String p = stringOf(pos);
+			if (!list.contains(p)) {
+				list.add(p);
+				findAllAttachedLavaBlocks(list, pos.up(), world, counter - 1);
+				findAllAttachedLavaBlocks(list, pos.down(), world, counter - 1);
+				findAllAttachedLavaBlocks(list, pos.north(), world, counter - 1);
+				findAllAttachedLavaBlocks(list, pos.south(), world, counter - 1);
+				findAllAttachedLavaBlocks(list, pos.east(), world, counter - 1);
+				findAllAttachedLavaBlocks(list, pos.west(), world, counter - 1);
+			}
+		}
+	}
+
+	@Override
+	public void onPlaced(World world, BlockPos pos, BlockState state, LivingEntity placer, ItemStack stack) {
+		Set<String> positions = new HashSet<>();
+		Integer counter = 8; // TODO: make it level up - able
+		findAllAttachedLavaBlocks(positions, pos.up(), world, counter);
+		findAllAttachedLavaBlocks(positions, pos.down(), world, counter);
+		findAllAttachedLavaBlocks(positions, pos.north(), world, counter);
+		findAllAttachedLavaBlocks(positions, pos.south(), world, counter);
+		findAllAttachedLavaBlocks(positions, pos.east(), world, counter);
+		findAllAttachedLavaBlocks(positions, pos.west(), world, counter);
+		Integer amount = positions.size();
+		for (String p : positions) {
+			world.setBlockState(blockPosOf(p), Blocks.AIR.getDefaultState());
+		}
+		if (amount > 0) {
+			world.setBlockState(pos, ModBlocks.BLOCK_LAVAHOARDER.getDefaultState());
+			world.getBlockTickScheduler().scheduleTick(OrderedTick.create(ModBlocks.BLOCK_LAVAHOARDER, pos));
+			int count = 0;
+			Random random = new Random();
+			for (int i = 0; i < amount; i++) {
+				if (random.nextFloat() < 0.0125) {
+					count++;
+				}
+			}
+			BlockPos up = pos.up();
+			if (count > 0) {
+				BlockLavahoarder.spawnRandomItems(world, up, count);
+				world.spawnEntity(new ExperienceOrbEntity(world, (double) pos.getX() + 0.5D, (double) pos.getY() + 0.5D,
+						(double) pos.getZ() + 0.5D, count));
+			}
+		} else {
+			world.getBlockTickScheduler().scheduleTick(OrderedTick.create(this, pos));
+		}
+	}
+}