Code/net/minecraft/client/gui/screens/worldselection/WorldCreationContext.java

package net.minecraft.client.gui.screens.worldselection;

import java.util.Set;
import java.util.function.BiFunction;
import java.util.function.UnaryOperator;
import net.minecraft.core.LayeredRegistryAccess;
import net.minecraft.core.Registry;
import net.minecraft.core.RegistryAccess;
import net.minecraft.core.registries.Registries;
import net.minecraft.server.RegistryLayer;
import net.minecraft.server.ReloadableServerResources;
import net.minecraft.world.level.WorldDataConfiguration;
import net.minecraft.world.level.dimension.LevelStem;
import net.minecraft.world.level.levelgen.WorldDimensions;
import net.minecraft.world.level.levelgen.WorldGenSettings;
import net.minecraft.world.level.levelgen.WorldOptions;
import net.minecraftforge.api.distmarker.Dist;
import net.minecraftforge.api.distmarker.OnlyIn;

@OnlyIn(Dist.CLIENT)
public record WorldCreationContext(
    WorldOptions options,
    Registry<LevelStem> datapackDimensions,
    WorldDimensions selectedDimensions,
    LayeredRegistryAccess<RegistryLayer> worldgenRegistries,
    ReloadableServerResources dataPackResources,
    WorldDataConfiguration dataConfiguration,
    InitialWorldCreationOptions initialWorldCreationOptions
) {
    public WorldCreationContext(
        WorldGenSettings p_249130_, LayeredRegistryAccess<RegistryLayer> p_248513_, ReloadableServerResources p_251786_, WorldDataConfiguration p_248593_
    ) {
        this(
            p_249130_.options(),
            p_249130_.dimensions(),
            p_248513_,
            p_251786_,
            p_248593_,
            new InitialWorldCreationOptions(WorldCreationUiState.SelectedGameMode.SURVIVAL, Set.of(), null)
        );
    }

    public WorldCreationContext(
        WorldOptions p_249836_,
        WorldDimensions p_250641_,
        LayeredRegistryAccess<RegistryLayer> p_251794_,
        ReloadableServerResources p_250560_,
        WorldDataConfiguration p_248539_,
        InitialWorldCreationOptions p_367482_
    ) {
        this(
            p_249836_,
            p_251794_.getLayer(RegistryLayer.DIMENSIONS).lookupOrThrow(Registries.LEVEL_STEM),
            p_250641_,
            p_251794_.replaceFrom(RegistryLayer.DIMENSIONS),
            p_250560_,
            p_248539_,
            p_367482_
        );
    }

    public WorldCreationContext withSettings(WorldOptions p_249492_, WorldDimensions p_250298_) {
        return new WorldCreationContext(p_249492_, this.datapackDimensions, p_250298_, this.worldgenRegistries, this.dataPackResources, this.dataConfiguration, this.initialWorldCreationOptions);
    }

    public WorldCreationContext withOptions(WorldCreationContext.OptionsModifier p_252288_) {
        return new WorldCreationContext(
            p_252288_.apply(this.options), this.datapackDimensions, this.selectedDimensions, this.worldgenRegistries, this.dataPackResources, this.dataConfiguration, this.initialWorldCreationOptions
        );
    }

    public WorldCreationContext withDimensions(WorldCreationContext.DimensionsUpdater p_250676_) {
        return new WorldCreationContext(
            this.options, this.datapackDimensions, p_250676_.apply(this.worldgenLoadContext(), this.selectedDimensions), this.worldgenRegistries, this.dataPackResources, this.dataConfiguration, this.initialWorldCreationOptions
        );
    }

    public RegistryAccess.Frozen worldgenLoadContext() {
        return this.worldgenRegistries.compositeAccess();
    }

    public void validate() {
        for (LevelStem levelstem : this.datapackDimensions()) {
            levelstem.generator().validate();
        }
    }

    @FunctionalInterface
    @OnlyIn(Dist.CLIENT)
    public interface DimensionsUpdater extends BiFunction<RegistryAccess.Frozen, WorldDimensions, WorldDimensions> {
    }

    @OnlyIn(Dist.CLIENT)
    public interface OptionsModifier extends UnaryOperator<WorldOptions> {
    }
}