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Add missing structure set seed configs

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The 4 missing structure set seed configs are strongholds, mineshafts,
buried treasure, and ancient cities.

Strongholds use a ring placement scheme which isn't random so they
utilize the world seed by default, this adds a config to override it
for just generating the ring positions.

Mineshafts and Buried Treasure structure sets are special cases
where the "salt" that can be defined for them via datapacks has 0
effect because the difference between the spacing and separation is 1
which is used as the upper bound in the random with salt. So the random
always returns the same int (0) so the salt has no effect. This adds
seeds/salts to the frequency reducer which has a similar effect.

Co-authored-by: William Blake Galbreath <blake.galbreath@gmail.com>
This commit is contained in:
Jake Potrebic
2022-01-13 23:05:53 -08:00
parent c0e7761df1
commit 83b4d889b7
6 changed files with 311 additions and 17 deletions
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77
paper-server/src/test/java/io/papermc/paper/world/structure/StructureSeedConfigTest.java Normal file
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package io.papermc.paper.world.structure;
import io.papermc.paper.configuration.PaperConfigurations;
import java.io.File;
import java.lang.reflect.Field;
import net.minecraft.core.Registry;
import net.minecraft.core.registries.Registries;
import net.minecraft.resources.ResourceKey;
import net.minecraft.resources.ResourceLocation;
import net.minecraft.world.level.levelgen.structure.BuiltinStructureSets;
import net.minecraft.world.level.levelgen.structure.StructureSet;
import net.minecraft.world.level.levelgen.structure.placement.StructurePlacement;
import org.bukkit.configuration.file.YamlConfiguration;
import org.bukkit.support.RegistryHelper;
import org.bukkit.support.environment.AllFeatures;
import org.jetbrains.annotations.NotNull;
import org.junit.jupiter.api.Test;
import org.spigotmc.SpigotConfig;
import org.spigotmc.SpigotWorldConfig;
import static org.junit.jupiter.api.Assertions.assertEquals;
@AllFeatures
public class StructureSeedConfigTest {
@Test
public void checkStructureSeedDefaults() throws ReflectiveOperationException {
SpigotConfig.config = new YamlConfiguration() {
@Override
public void save(final @NotNull File file) {
// no-op
}
};
final SpigotWorldConfig config = PaperConfigurations.SPIGOT_WORLD_DEFAULTS.get();
final Registry<StructureSet> structureSets = RegistryHelper.getRegistry().lookupOrThrow(Registries.STRUCTURE_SET);
for (final ResourceKey<StructureSet> setKey : structureSets.registryKeySet()) {
assertEquals(ResourceLocation.DEFAULT_NAMESPACE, setKey.location().getNamespace());
final StructureSet set = structureSets.getValueOrThrow(setKey);
if (setKey == BuiltinStructureSets.STRONGHOLDS) { // special case due to seed matching world seed
assertEquals(0, set.placement().salt);
continue;
}
int salt = switch (setKey.location().getPath()) {
case "villages" -> config.villageSeed;
case "desert_pyramids" -> config.desertSeed;
case "igloos" -> config.iglooSeed;
case "jungle_temples" -> config.jungleSeed;
case "swamp_huts" -> config.swampSeed;
case "pillager_outposts" -> config.outpostSeed;
case "ocean_monuments" -> config.monumentSeed;
case "woodland_mansions" -> config.mansionSeed;
case "buried_treasures" -> config.buriedTreasureSeed;
case "mineshafts" -> config.mineshaftSeed == null ? 0 : config.mineshaftSeed; // mineshaft seed is set differently
case "ruined_portals" -> config.portalSeed;
case "shipwrecks" -> config.shipwreckSeed;
case "ocean_ruins" -> config.oceanSeed;
case "nether_complexes" -> config.netherSeed;
case "nether_fossils" -> config.fossilSeed;
case "end_cities" -> config.endCitySeed;
case "ancient_cities" -> config.ancientCitySeed;
case "trail_ruins" -> config.trailRuinsSeed;
case "trial_chambers" -> config.trialChambersSeed;
default -> throw new AssertionError("Missing structure set seed in SpigotWorldConfig for " + setKey);
};
if (setKey == BuiltinStructureSets.BURIED_TREASURES) {
final Field field = StructurePlacement.class.getDeclaredField("HIGHLY_ARBITRARY_RANDOM_SALT");
field.trySetAccessible();
assertEquals(0, set.placement().salt);
assertEquals(field.get(null), salt, "Mismatched default seed for " + setKey + ". Should be " + field.get(null));
continue;
}
assertEquals(set.placement().salt, salt, "Mismatched default seed for " + setKey + ". Should be " + set.placement().salt);
}
}
}