2019-08-30 22:38:15 +00:00
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/*
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* This file is part of Baritone.
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*
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* Baritone is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Baritone is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with Baritone. If not, see <https://www.gnu.org/licenses/>.
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*/
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package baritone.api.utils;
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2019-09-01 03:43:03 +00:00
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import baritone.api.accessor.IItemStack;
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2019-08-31 17:28:01 +00:00
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import com.google.common.collect.ImmutableSet;
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2019-08-30 22:38:15 +00:00
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import net.minecraft.block.Block;
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import net.minecraft.block.state.IBlockState;
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import net.minecraft.item.ItemStack;
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import net.minecraft.util.ResourceLocation;
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2019-08-31 17:28:01 +00:00
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import net.minecraft.util.Rotation;
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2019-08-30 22:38:15 +00:00
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import javax.annotation.Nonnull;
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import javax.annotation.Nullable;
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2019-09-01 03:43:03 +00:00
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import java.util.HashSet;
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import java.util.Random;
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import java.util.Set;
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2019-08-30 22:38:15 +00:00
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import java.util.regex.MatchResult;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import java.util.stream.Collectors;
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2019-08-30 22:38:15 +00:00
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import static java.util.Objects.isNull;
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public final class BlockOptionalMeta {
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private final Block block;
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private final int meta;
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private final boolean noMeta;
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private final Set<IBlockState> blockstates;
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private final ImmutableSet<Integer> stateHashes;
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private final ImmutableSet<Integer> stackHashes;
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2019-08-30 22:38:15 +00:00
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private static final Pattern pattern = Pattern.compile("^(.+?)(?::(\\d+))?$");
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2019-09-01 03:43:03 +00:00
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private static Set<IBlockState> getStates(@Nonnull Block block, @Nullable Integer meta) {
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return block.getBlockState().getValidStates().stream()
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.filter(blockstate -> meta == null || block.getMetaFromState(blockstate.withRotation(Rotation.NONE)) == meta)
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.collect(Collectors.toCollection(HashSet::new));
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}
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2019-09-01 03:43:03 +00:00
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private static ImmutableSet<Integer> getStateHashes(Set<IBlockState> blockstates) {
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return ImmutableSet.copyOf(
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blockstates.stream()
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.map(IBlockState::hashCode)
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.toArray(Integer[]::new)
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);
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}
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private static ImmutableSet<Integer> getStackHashes(Set<IBlockState> blockstates) {
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//noinspection ConstantConditions
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return ImmutableSet.copyOf(
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blockstates.stream()
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.map(state -> new ItemStack(
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state.getBlock().getItemDropped(state, new Random(), 0),
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state.getBlock().damageDropped(state)
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))
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.map(stack -> ((IItemStack) (Object) stack).getBaritoneHash())
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.toArray(Integer[]::new)
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);
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}
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2019-08-30 22:38:15 +00:00
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public BlockOptionalMeta(@Nonnull Block block, @Nullable Integer meta) {
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this.block = block;
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this.noMeta = isNull(meta);
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this.meta = noMeta ? 0 : meta;
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this.blockstates = getStates(block, meta);
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this.stateHashes = getStateHashes(blockstates);
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this.stackHashes = getStackHashes(blockstates);
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}
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public BlockOptionalMeta(@Nonnull Block block) {
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this(block, null);
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}
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public BlockOptionalMeta(@Nonnull String selector) {
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Matcher matcher = pattern.matcher(selector);
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if (!matcher.find()) {
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throw new IllegalArgumentException("invalid block selector");
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}
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MatchResult matchResult = matcher.toMatchResult();
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2019-08-31 00:12:05 +00:00
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noMeta = matchResult.group(2) == null;
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ResourceLocation id = new ResourceLocation(matchResult.group(1));
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if (!Block.REGISTRY.containsKey(id)) {
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throw new IllegalArgumentException("Invalid block ID");
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}
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block = Block.REGISTRY.getObject(id);
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meta = noMeta ? 0 : Integer.parseInt(matchResult.group(2));
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2019-09-01 03:58:22 +00:00
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blockstates = getStates(block, getMeta());
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stateHashes = getStateHashes(blockstates);
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stackHashes = getStackHashes(blockstates);
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}
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public Block getBlock() {
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return block;
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}
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public Integer getMeta() {
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return noMeta ? null : meta;
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}
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2019-08-31 00:12:05 +00:00
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public boolean matches(@Nonnull Block block) {
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return block == this.block;
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}
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public boolean matches(@Nonnull IBlockState blockstate) {
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Block block = blockstate.getBlock();
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return block == this.block && stateHashes.contains(blockstate.hashCode());
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}
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public boolean matches(ItemStack stack) {
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//noinspection ConstantConditions
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2019-09-01 03:58:22 +00:00
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int hash = ((IItemStack) (Object) stack).getBaritoneHash();
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if (noMeta) {
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hash -= stack.getItemDamage();
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}
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return stackHashes.contains(hash);
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}
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@Override
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public String toString() {
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return String.format("BlockOptionalMeta{block=%s,meta=%s}", block, getMeta());
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}
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public static IBlockState blockStateFromStack(ItemStack stack) {
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//noinspection deprecation
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return Block.getBlockFromItem(stack.getItem()).getStateFromMeta(stack.getMetadata());
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}
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}
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