51 lines
1.5 KiB
Java
51 lines
1.5 KiB
Java
package net.minecraft.util.datafix.fixes;
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import com.mojang.datafixers.DSL;
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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 java.util.Arrays;
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import java.util.Optional;
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import java.util.stream.IntStream;
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public class ChunkBiomeFix extends DataFix {
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public ChunkBiomeFix(Schema outputSchema, boolean changesType) {
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super(outputSchema, changesType);
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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.CHUNK);
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OpticFinder<?> opticFinder = type.findField("Level");
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return this.fixTypeEverywhereTyped("Leaves fix", type, typed -> typed.updateTyped(opticFinder, typedx -> typedx.update(DSL.remainderFinder(), dynamic -> {
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Optional<IntStream> optional = dynamic.get("Biomes").asIntStreamOpt().result();
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if (optional.isEmpty()) {
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return dynamic;
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} else {
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int[] is = ((IntStream)optional.get()).toArray();
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if (is.length != 256) {
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return dynamic;
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} else {
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int[] js = new int[1024];
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for (int i = 0; i < 4; i++) {
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for (int j = 0; j < 4; j++) {
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int k = (j << 2) + 2;
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int l = (i << 2) + 2;
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int m = l << 4 | k;
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js[i << 2 | j] = is[m];
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}
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}
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for (int i = 1; i < 64; i++) {
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System.arraycopy(js, 0, js, i * 16, 16);
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}
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return dynamic.set("Biomes", dynamic.createIntList(Arrays.stream(js)));
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}
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}
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})));
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}
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}
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