33 lines
1.2 KiB
Java
33 lines
1.2 KiB
Java
package net.minecraft.util.datafix.fixes;
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import com.mojang.datafixers.DataFix;
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import com.mojang.datafixers.OpticFinder;
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import com.mojang.datafixers.TypeRewriteRule;
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import com.mojang.datafixers.schemas.Schema;
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import com.mojang.datafixers.types.Type;
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import net.minecraft.nbt.NbtFormatException;
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public class WorldGenSettingsDisallowOldCustomWorldsFix extends DataFix {
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public WorldGenSettingsDisallowOldCustomWorldsFix(Schema outputSchema) {
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super(outputSchema, false);
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}
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@Override
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protected TypeRewriteRule makeRule() {
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Type<?> type = this.getInputSchema().getType(References.WORLD_GEN_SETTINGS);
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OpticFinder<?> opticFinder = type.findField("dimensions");
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return this.fixTypeEverywhereTyped(
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"WorldGenSettingsDisallowOldCustomWorldsFix_" + this.getOutputSchema().getVersionKey(), type, typed -> typed.updateTyped(opticFinder, typedx -> {
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typedx.write().map(dynamic -> dynamic.getMapValues().map(map -> {
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map.forEach((dynamicx, dynamic2) -> {
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if (dynamic2.get("type").asString().result().isEmpty()) {
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throw new NbtFormatException("Unable load old custom worlds.");
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}
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});
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return map;
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}));
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return typedx;
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})
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);
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}
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}
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