87 lines
3.7 KiB
Java
87 lines
3.7 KiB
Java
package net.minecraft.world.level.block;
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import com.google.common.collect.Maps;
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import com.mojang.serialization.MapCodec;
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import com.mojang.serialization.codecs.RecordCodecBuilder;
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import java.util.Map;
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import java.util.function.Supplier;
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import net.minecraft.core.BlockPos;
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import net.minecraft.core.registries.BuiltInRegistries;
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import net.minecraft.server.level.ServerLevel;
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import net.minecraft.tags.EnchantmentTags;
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import net.minecraft.world.entity.EntitySpawnReason;
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import net.minecraft.world.entity.EntityType;
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import net.minecraft.world.entity.monster.Silverfish;
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import net.minecraft.world.item.ItemStack;
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import net.minecraft.world.item.enchantment.EnchantmentHelper;
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import net.minecraft.world.level.GameRules;
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import net.minecraft.world.level.block.state.BlockBehaviour;
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import net.minecraft.world.level.block.state.BlockState;
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import net.minecraft.world.level.block.state.properties.Property;
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public class InfestedBlock extends Block {
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public static final MapCodec<InfestedBlock> CODEC = RecordCodecBuilder.mapCodec(
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instance -> instance.group(BuiltInRegistries.BLOCK.byNameCodec().fieldOf("host").forGetter(InfestedBlock::getHostBlock), propertiesCodec())
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.apply(instance, InfestedBlock::new)
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);
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private final Block hostBlock;
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private static final Map<Block, Block> BLOCK_BY_HOST_BLOCK = Maps.<Block, Block>newIdentityHashMap();
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private static final Map<BlockState, BlockState> HOST_TO_INFESTED_STATES = Maps.<BlockState, BlockState>newIdentityHashMap();
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private static final Map<BlockState, BlockState> INFESTED_TO_HOST_STATES = Maps.<BlockState, BlockState>newIdentityHashMap();
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@Override
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public MapCodec<? extends InfestedBlock> codec() {
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return CODEC;
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}
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public InfestedBlock(Block hostBlock, BlockBehaviour.Properties properties) {
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super(properties.destroyTime(hostBlock.defaultDestroyTime() / 2.0F).explosionResistance(0.75F));
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this.hostBlock = hostBlock;
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BLOCK_BY_HOST_BLOCK.put(hostBlock, this);
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}
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public Block getHostBlock() {
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return this.hostBlock;
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}
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public static boolean isCompatibleHostBlock(BlockState state) {
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return BLOCK_BY_HOST_BLOCK.containsKey(state.getBlock());
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}
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private void spawnInfestation(ServerLevel level, BlockPos pos) {
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Silverfish silverfish = EntityType.SILVERFISH.create(level, EntitySpawnReason.TRIGGERED);
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if (silverfish != null) {
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silverfish.snapTo(pos.getX() + 0.5, pos.getY(), pos.getZ() + 0.5, 0.0F, 0.0F);
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level.addFreshEntity(silverfish);
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silverfish.spawnAnim();
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}
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}
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@Override
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protected void spawnAfterBreak(BlockState state, ServerLevel level, BlockPos pos, ItemStack stack, boolean dropExperience) {
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super.spawnAfterBreak(state, level, pos, stack, dropExperience);
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if (level.getGameRules().getBoolean(GameRules.RULE_DOBLOCKDROPS) && !EnchantmentHelper.hasTag(stack, EnchantmentTags.PREVENTS_INFESTED_SPAWNS)) {
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this.spawnInfestation(level, pos);
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}
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}
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public static BlockState infestedStateByHost(BlockState host) {
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return getNewStateWithProperties(HOST_TO_INFESTED_STATES, host, () -> ((Block)BLOCK_BY_HOST_BLOCK.get(host.getBlock())).defaultBlockState());
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}
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public BlockState hostStateByInfested(BlockState infested) {
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return getNewStateWithProperties(INFESTED_TO_HOST_STATES, infested, () -> this.getHostBlock().defaultBlockState());
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}
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private static BlockState getNewStateWithProperties(Map<BlockState, BlockState> stateMap, BlockState state, Supplier<BlockState> supplier) {
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return (BlockState)stateMap.computeIfAbsent(state, blockState -> {
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BlockState blockState2 = (BlockState)supplier.get();
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for (Property property : blockState.getProperties()) {
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blockState2 = blockState2.hasProperty(property) ? blockState2.setValue(property, blockState.getValue(property)) : blockState2;
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}
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return blockState2;
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});
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}
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}
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