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implement caching biome provider

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dfsek
2021-12-30 16:01:19 -07:00
parent 74237e7568
commit d36fc7dec1
10 changed files with 74 additions and 50 deletions
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4
common/api/src/main/java/com/dfsek/terra/api/world/biome/generation/BiomeProvider.java
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@@ -59,4 +59,8 @@ public interface BiomeProvider {
* @return {@link Iterable} of all biomes this provider can generate.
*/
Iterable<Biome> getBiomes();
default BiomeProvider caching() {
return new CachingBiomeProvider(this);
}
}

38
common/api/src/main/java/com/dfsek/terra/api/world/biome/generation/CachingBiomeProvider.java Normal file
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@@ -0,0 +1,38 @@
package com.dfsek.terra.api.world.biome.generation;
import com.dfsek.terra.api.Handle;
import com.dfsek.terra.api.util.MathUtil;
import com.dfsek.terra.api.world.biome.Biome;
import java.util.HashMap;
import java.util.Map;
/**
* A biome provider implementation that lazily evaluates biomes, and caches them.
*
* This is for use in chunk generators, it makes the assumption that <b>the seed remains the same for the duration of its use!</b>
*/
public class CachingBiomeProvider implements BiomeProvider, Handle {
private final BiomeProvider delegate;
private final Map<Long, Biome> cache = new HashMap<>();
protected CachingBiomeProvider(BiomeProvider delegate) {
this.delegate = delegate;
}
@Override
public BiomeProvider getHandle() {
return delegate;
}
@Override
public Biome getBiome(int x, int z, long seed) {
return cache.computeIfAbsent(MathUtil.squash(x, z), key -> delegate.getBiome(x, z, seed));
}
@Override
public Iterable<Biome> getBiomes() {
return delegate.getBiomes();
}
}

3
common/api/src/main/java/com/dfsek/terra/api/world/chunk/generation/ChunkGenerator.java
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@@ -7,6 +7,7 @@
package com.dfsek.terra.api.world.chunk.generation;
import com.dfsek.terra.api.world.biome.generation.BiomeProvider;
import com.dfsek.terra.api.world.info.WorldProperties;
import org.jetbrains.annotations.NotNull;
@@ -18,7 +19,7 @@ import com.dfsek.terra.api.world.WritableWorld;
public interface ChunkGenerator {
void generateChunkData(@NotNull ProtoChunk chunk, @NotNull WorldProperties world,
void generateChunkData(@NotNull ProtoChunk chunk, @NotNull WorldProperties world, @NotNull BiomeProvider biomeProvider,
int chunkX, int chunkZ);
BlockState getBlock(WorldProperties world, int x, int y, int z);