58 lines
2.8 KiB
Java
58 lines
2.8 KiB
Java
package net.minecraft.advancements.critereon;
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import com.mojang.serialization.Codec;
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import com.mojang.serialization.DataResult;
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import com.mojang.serialization.codecs.RecordCodecBuilder;
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import java.util.Optional;
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import net.minecraft.advancements.CriteriaTriggers;
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import net.minecraft.advancements.Criterion;
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import net.minecraft.core.Holder;
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import net.minecraft.core.registries.BuiltInRegistries;
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import net.minecraft.server.level.ServerPlayer;
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import net.minecraft.world.level.block.Block;
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import net.minecraft.world.level.block.state.BlockState;
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public class EnterBlockTrigger extends SimpleCriterionTrigger<EnterBlockTrigger.TriggerInstance> {
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@Override
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public Codec<EnterBlockTrigger.TriggerInstance> codec() {
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return EnterBlockTrigger.TriggerInstance.CODEC;
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}
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public void trigger(ServerPlayer player, BlockState state) {
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this.trigger(player, triggerInstance -> triggerInstance.matches(state));
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}
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public record TriggerInstance(Optional<ContextAwarePredicate> player, Optional<Holder<Block>> block, Optional<StatePropertiesPredicate> state)
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implements SimpleCriterionTrigger.SimpleInstance {
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public static final Codec<EnterBlockTrigger.TriggerInstance> CODEC = RecordCodecBuilder.<EnterBlockTrigger.TriggerInstance>create(
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instance -> instance.group(
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EntityPredicate.ADVANCEMENT_CODEC.optionalFieldOf("player").forGetter(EnterBlockTrigger.TriggerInstance::player),
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BuiltInRegistries.BLOCK.holderByNameCodec().optionalFieldOf("block").forGetter(EnterBlockTrigger.TriggerInstance::block),
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StatePropertiesPredicate.CODEC.optionalFieldOf("state").forGetter(EnterBlockTrigger.TriggerInstance::state)
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)
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.apply(instance, EnterBlockTrigger.TriggerInstance::new)
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)
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.validate(EnterBlockTrigger.TriggerInstance::validate);
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private static DataResult<EnterBlockTrigger.TriggerInstance> validate(EnterBlockTrigger.TriggerInstance triggerInstance) {
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return (DataResult<EnterBlockTrigger.TriggerInstance>)triggerInstance.block
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.flatMap(
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holder -> triggerInstance.state
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.flatMap(statePropertiesPredicate -> statePropertiesPredicate.checkState(((Block)holder.value()).getStateDefinition()))
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.map(string -> DataResult.error(() -> "Block" + holder + " has no property " + string))
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)
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.orElseGet(() -> DataResult.success(triggerInstance));
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}
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public static Criterion<EnterBlockTrigger.TriggerInstance> entersBlock(Block block) {
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return CriteriaTriggers.ENTER_BLOCK
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.createCriterion(new EnterBlockTrigger.TriggerInstance(Optional.empty(), Optional.of(block.builtInRegistryHolder()), Optional.empty()));
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}
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public boolean matches(BlockState state) {
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return this.block.isPresent() && !state.is((Holder<Block>)this.block.get())
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? false
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: !this.state.isPresent() || ((StatePropertiesPredicate)this.state.get()).matches(state);
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}
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}
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}
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