Hykilpikonna
63 lines
2.0 KiB
Java
63 lines
2.0 KiB
Java
package kaptainwutax.seedcracker.cracker;
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import kaptainwutax.seedcracker.SeedCracker;
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import kaptainwutax.seedcracker.cracker.population.PopulationData;
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import kaptainwutax.seedcracker.util.Log;
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import kaptainwutax.seedcracker.util.Rand;
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import kaptainwutax.seedcracker.util.math.LCG;
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import net.minecraft.world.gen.ChunkRandom;
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import java.util.List;
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public class TimeMachine {
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private LCG inverseLCG = Rand.JAVA_LCG.combine(-2);
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public TimeMachine() {
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}
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public List<Long> buildStructureSeeds(int pillarSeed, List<StructureData> structureDataList, List<PopulationData> populationDataList, List<Long> structureSeeds) {
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ChunkRandom chunkRandom = new ChunkRandom();
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for(long i = 0; i < (1L << 32); i++) {
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if((i & ((1L << 28) - 1)) == 0) {
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Log.warn("Progress " + (i * 100.0f) / (1L << 32) + "%...");
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}
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long structureSeed = this.timeMachine(i, pillarSeed);
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boolean goodSeed = true;
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for(StructureData structureData: structureDataList) {
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if(!goodSeed)break;
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chunkRandom.setStructureSeed(structureSeed, structureData.getRegionX(),
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structureData.getRegionZ(), structureData.getSalt());
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if(!structureData.test(chunkRandom))goodSeed = false;
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}
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for(PopulationData populationData: populationDataList) {
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if(!goodSeed)break;
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if(!populationData.test(structureSeed))goodSeed = false;
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}
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if(goodSeed) {
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structureSeeds.add(structureSeed);
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}
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}
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return structureSeeds;
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}
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public long timeMachine(long partialWorldSeed, int pillarSeed) {
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long currentSeed = 0L;
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currentSeed |= (partialWorldSeed & 0xFFFF0000L) << 16;
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currentSeed |= (long)pillarSeed << 16;
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currentSeed |= partialWorldSeed & 0xFFFFL;
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currentSeed = this.inverseLCG.nextSeed(currentSeed);
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currentSeed ^= Rand.JAVA_LCG.multiplier;
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return currentSeed;
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}
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}
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