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158 changes: 158 additions & 0 deletions
158
src/main/java/com/ldtteam/common/fakelevel/SingleBlockFakeLevel.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,158 @@ | ||
| package com.ldtteam.common.fakelevel; | ||
|
|
||
| import net.minecraft.CrashReportCategory; | ||
| import net.minecraft.core.BlockPos; | ||
| import net.minecraft.core.registries.BuiltInRegistries; | ||
| import net.minecraft.world.level.Level; | ||
| import net.minecraft.world.level.block.entity.BlockEntity; | ||
| import net.minecraft.world.level.block.state.BlockState; | ||
| import org.jetbrains.annotations.Nullable; | ||
| import java.util.Collection; | ||
| import java.util.function.Consumer; | ||
| import java.util.function.Function; | ||
|
|
||
| /** | ||
| * Simple implementation of {@link IFakeLevelBlockGetter} mostly for usage in methods where {@link Level} is needed for virtual | ||
| * BE/entities etc. | ||
| */ | ||
| public class SingleBlockFakeLevel extends FakeLevel<SingleBlockFakeLevel.SingleBlockFakeLevelGetter> | ||
| { | ||
| /** | ||
| * Creates simple fakeLevel instance | ||
| * | ||
| * @param realLevel actual valid vanilla instance to provide eg. registries | ||
| */ | ||
| public SingleBlockFakeLevel(final Level realLevel) | ||
| { | ||
| super(new SingleBlockFakeLevelGetter(), IFakeLevelLightProvider.USE_CLIENT_LEVEL, realLevel, null, true); | ||
| } | ||
|
|
||
| /** | ||
| * Do not forget to unset to prevent potential memory leaks | ||
| * | ||
| * @param blockState related to blockEntity | ||
| * @param blockEntity related to blockState | ||
| * @param realLevel actual valid vanilla instance to provide eg. registries | ||
| * @see #unset(FakeLevel, BlockEntity) | ||
| * @see FakeLevel#setEntities(Collection) FakeLevel#setEntities(Collection) if you want to add entities, do not forget to reset | ||
| */ | ||
| public void prepare(final BlockState blockState, @Nullable final BlockEntity blockEntity, final Level realLevel) | ||
| { | ||
| getLevelSource().blockEntity = blockEntity; | ||
| getLevelSource().blockState = blockState; | ||
| setRealLevel(realLevel); | ||
|
|
||
| if (blockEntity != null) | ||
| { | ||
| blockEntity.setLevel(this); | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * @param blockEntity to unlink level if needed | ||
| * @see #prepare(FakeLevel, BlockState, BlockEntity, Level) | ||
| */ | ||
| public void unset(@Nullable final BlockEntity blockEntity) | ||
| { | ||
| getLevelSource().blockEntity = null; | ||
| getLevelSource().blockState = null; | ||
| setRealLevel(null); | ||
|
|
||
| if (blockEntity != null) | ||
| { | ||
| try | ||
| { | ||
| blockEntity.setLevel(null); | ||
| } | ||
| catch (final NullPointerException e) | ||
| { | ||
| // setLevel impls sometimes violates nullability of level field | ||
| } | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * See related methods for more information. | ||
| * | ||
| * @param blockState related to blockEntity | ||
| * @param blockEntity related to blockState | ||
| * @param realLevel actual valid vanilla instance to provide eg. registries | ||
| * @param action context action | ||
| * @see #prepare(FakeLevel, BlockState, BlockEntity, Level) | ||
| * @see #unset(FakeLevel, BlockEntity) | ||
| */ | ||
| public void withFakeLevelContext(final BlockState blockState, | ||
| @Nullable final BlockEntity blockEntity, | ||
| final Level realLevel, | ||
| final Consumer<Level> action) | ||
| { | ||
| prepare(blockState, blockEntity, realLevel); | ||
| action.accept(this); | ||
| unset(blockEntity); | ||
| } | ||
|
|
||
| /** | ||
| * See related methods for more information. | ||
| * | ||
| * @param blockState related to blockEntity | ||
| * @param blockEntity related to blockState | ||
| * @param realLevel actual valid vanilla instance to provide eg. registries | ||
| * @param action context action | ||
| * @see #prepare(FakeLevel, BlockState, BlockEntity, Level) | ||
| * @see #unset(FakeLevel, BlockEntity) | ||
| */ | ||
| public <T> T useFakeLevelContext(final BlockState blockState, | ||
| @Nullable final BlockEntity blockEntity, | ||
| final Level realLevel, | ||
| final Function<Level, T> action) | ||
| { | ||
| prepare(blockState, blockEntity, realLevel); | ||
| final T result = action.apply(this); | ||
| unset(blockEntity); | ||
| return result; | ||
| } | ||
|
|
||
| public static class SingleBlockFakeLevelGetter implements IFakeLevelBlockGetter | ||
| { | ||
| public BlockState blockState = null; | ||
| public BlockEntity blockEntity = null; | ||
|
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||
| @Override | ||
| public BlockEntity getBlockEntity(final BlockPos pos) | ||
| { | ||
| return blockEntity; | ||
| } | ||
|
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| @Override | ||
| public BlockState getBlockState(final BlockPos pos) | ||
| { | ||
| return blockState; | ||
| } | ||
|
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||
| @Override | ||
| public int getHeight() | ||
| { | ||
| return 1; | ||
| } | ||
|
|
||
| @Override | ||
| public int getSizeX() | ||
| { | ||
| return 1; | ||
| } | ||
|
|
||
| @Override | ||
| public int getSizeZ() | ||
| { | ||
| return 1; | ||
| } | ||
|
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| @Override | ||
| public void describeSelfInCrashReport(final CrashReportCategory category) | ||
| { | ||
| category.setDetail("Single block", blockState::toString); | ||
| category.setDetail("Single block entity type", | ||
| () -> blockEntity == null ? null : BuiltInRegistries.BLOCK_ENTITY_TYPE.getKey(blockEntity.getType()).toString()); | ||
| } | ||
| } | ||
| } |
110 changes: 0 additions & 110 deletions
110
src/main/java/com/ldtteam/common/fakelevel/SingleBlockFakeLevelGetter.java
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