114 lines
4.6 KiB
Java
114 lines
4.6 KiB
Java
package net.minecraft.world.level.block;
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import com.mojang.serialization.MapCodec;
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import net.minecraft.advancements.CriteriaTriggers;
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import net.minecraft.core.BlockPos;
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import net.minecraft.core.Direction;
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import net.minecraft.server.level.ServerPlayer;
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import net.minecraft.tags.BlockTags;
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import net.minecraft.world.Difficulty;
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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.LivingEntity;
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import net.minecraft.world.entity.boss.wither.WitherBoss;
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import net.minecraft.world.item.ItemStack;
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import net.minecraft.world.item.Items;
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import net.minecraft.world.level.Level;
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import net.minecraft.world.level.block.entity.SkullBlockEntity;
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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.pattern.BlockInWorld;
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import net.minecraft.world.level.block.state.pattern.BlockPattern;
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import net.minecraft.world.level.block.state.pattern.BlockPatternBuilder;
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import net.minecraft.world.level.block.state.predicate.BlockStatePredicate;
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import org.jetbrains.annotations.Nullable;
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public class WitherSkullBlock extends SkullBlock {
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public static final MapCodec<WitherSkullBlock> CODEC = simpleCodec(WitherSkullBlock::new);
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@Nullable
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private static BlockPattern witherPatternFull;
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@Nullable
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private static BlockPattern witherPatternBase;
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@Override
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public MapCodec<WitherSkullBlock> codec() {
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return CODEC;
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}
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protected WitherSkullBlock(BlockBehaviour.Properties properties) {
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super(SkullBlock.Types.WITHER_SKELETON, properties);
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}
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@Override
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public void setPlacedBy(Level level, BlockPos pos, BlockState state, @Nullable LivingEntity placer, ItemStack stack) {
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checkSpawn(level, pos);
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}
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public static void checkSpawn(Level level, BlockPos pos) {
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if (level.getBlockEntity(pos) instanceof SkullBlockEntity skullBlockEntity) {
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checkSpawn(level, pos, skullBlockEntity);
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}
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}
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public static void checkSpawn(Level level, BlockPos pos, SkullBlockEntity blockEntity) {
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if (!level.isClientSide) {
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BlockState blockState = blockEntity.getBlockState();
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boolean bl = blockState.is(Blocks.WITHER_SKELETON_SKULL) || blockState.is(Blocks.WITHER_SKELETON_WALL_SKULL);
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if (bl && pos.getY() >= level.getMinY() && level.getDifficulty() != Difficulty.PEACEFUL) {
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BlockPattern.BlockPatternMatch blockPatternMatch = getOrCreateWitherFull().find(level, pos);
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if (blockPatternMatch != null) {
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WitherBoss witherBoss = EntityType.WITHER.create(level, EntitySpawnReason.TRIGGERED);
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if (witherBoss != null) {
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CarvedPumpkinBlock.clearPatternBlocks(level, blockPatternMatch);
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BlockPos blockPos = blockPatternMatch.getBlock(1, 2, 0).getPos();
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witherBoss.snapTo(
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blockPos.getX() + 0.5, blockPos.getY() + 0.55, blockPos.getZ() + 0.5, blockPatternMatch.getForwards().getAxis() == Direction.Axis.X ? 0.0F : 90.0F, 0.0F
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);
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witherBoss.yBodyRot = blockPatternMatch.getForwards().getAxis() == Direction.Axis.X ? 0.0F : 90.0F;
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witherBoss.makeInvulnerable();
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for (ServerPlayer serverPlayer : level.getEntitiesOfClass(ServerPlayer.class, witherBoss.getBoundingBox().inflate(50.0))) {
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CriteriaTriggers.SUMMONED_ENTITY.trigger(serverPlayer, witherBoss);
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}
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level.addFreshEntity(witherBoss);
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CarvedPumpkinBlock.updatePatternBlocks(level, blockPatternMatch);
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}
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}
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}
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}
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}
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public static boolean canSpawnMob(Level level, BlockPos pos, ItemStack stack) {
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return stack.is(Items.WITHER_SKELETON_SKULL) && pos.getY() >= level.getMinY() + 2 && level.getDifficulty() != Difficulty.PEACEFUL && !level.isClientSide
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? getOrCreateWitherBase().find(level, pos) != null
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: false;
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}
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private static BlockPattern getOrCreateWitherFull() {
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if (witherPatternFull == null) {
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witherPatternFull = BlockPatternBuilder.start()
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.aisle("^^^", "###", "~#~")
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.where('#', blockInWorld -> blockInWorld.getState().is(BlockTags.WITHER_SUMMON_BASE_BLOCKS))
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.where(
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'^', BlockInWorld.hasState(BlockStatePredicate.forBlock(Blocks.WITHER_SKELETON_SKULL).or(BlockStatePredicate.forBlock(Blocks.WITHER_SKELETON_WALL_SKULL)))
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)
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.where('~', blockInWorld -> blockInWorld.getState().isAir())
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.build();
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}
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return witherPatternFull;
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}
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private static BlockPattern getOrCreateWitherBase() {
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if (witherPatternBase == null) {
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witherPatternBase = BlockPatternBuilder.start()
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.aisle(" ", "###", "~#~")
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.where('#', blockInWorld -> blockInWorld.getState().is(BlockTags.WITHER_SUMMON_BASE_BLOCKS))
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.where('~', blockInWorld -> blockInWorld.getState().isAir())
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.build();
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}
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return witherPatternBase;
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}
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}
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