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protect against biome cell overflow

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This commit is contained in:
dfsek 2021-01-13 22:12:18 -07:00
parent 56a0d5d15b
commit 244f0fba11
5 changed files with 36 additions and 17 deletions
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2
common/src/main/java/com/dfsek/terra/biome/StandardBiomeProvider.java
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@ -16,7 +16,7 @@ import java.util.concurrent.ExecutionException;
public class StandardBiomeProvider implements BiomeProvider {
private final BiomePipeline pipeline;
private final LoadingCache<Vector2, BiomeHolder> holderCache = CacheBuilder.newBuilder()
.maximumSize(1024)
.maximumSize(64)
.build(
new CacheLoader<Vector2, BiomeHolder>() {
@Override

2
common/src/main/java/com/dfsek/terra/biome/pipeline/BiomeHolder.java
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@ -13,4 +13,6 @@ public interface BiomeHolder {
void fill(BiomeSource source);
TerraBiome getBiome(int x, int z);
TerraBiome getBiomeRaw(int x, int z);
}

15
common/src/main/java/com/dfsek/terra/biome/pipeline/TerraBiomeHolder.java
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@ -10,17 +10,21 @@ public class TerraBiomeHolder implements BiomeHolder {
private final Vector2 origin;
private final int width;
private TerraBiome[][] biomes;
private final int offset;
public TerraBiomeHolder(int width, Vector2 origin) {
width += 2;
this.width = width;
biomes = new TerraBiome[width][width];
this.origin = origin;
this.offset = 1;
}
private TerraBiomeHolder(TerraBiome[][] biomes, Vector2 origin, int width) {
private TerraBiomeHolder(TerraBiome[][] biomes, Vector2 origin, int width, int offset) {
this.biomes = biomes;
this.origin = origin;
this.width = width;
this.offset = 2 * offset;
}
@Override
@ -41,7 +45,7 @@ public class TerraBiomeHolder implements BiomeHolder {
biomes[x * 2 + 1][z * 2 + 1] = expander.getBetween(x + 1 + origin.getX(), z + 1 + origin.getZ(), old[x][z], old[x + 1][z + 1], old[x][z + 1], old[x + 1][z]);
}
}
return new TerraBiomeHolder(biomes, origin.setX(origin.getX() * 2 - 1).setZ(origin.getZ() * 2 - 1), newWidth);
return new TerraBiomeHolder(biomes, origin.setX(origin.getX() * 2 - 1).setZ(origin.getZ() * 2 - 1), newWidth, offset);
}
@Override
@ -65,6 +69,13 @@ public class TerraBiomeHolder implements BiomeHolder {
@Override
public TerraBiome getBiome(int x, int z) {
x += offset;
z += offset;
return getBiomeRaw(x, z);
}
@Override
public TerraBiome getBiomeRaw(int x, int z) {
if(x >= width || z >= width || x < 0 || z < 0) return null;
return biomes[x][z];
}

2
common/src/main/java/com/dfsek/terra/biome/pipeline/mutator/BiomeMutator.java
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@ -19,7 +19,7 @@ public interface BiomeMutator {
public TerraBiome getBiome(int x, int z) {
return biomes.getBiome(x + offX, z + offZ);
return biomes.getBiomeRaw(x + offX, z + offZ);
}
}
}

32
common/src/test/java/biome/BiomeTest.java
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@ -61,19 +61,25 @@ public class BiomeTest {
BiomeSource source = new RandomSource(climate, sourceSampler);
BiomeProvider provider = new StandardBiomeProvider.StandardBiomeProviderBuilder((seed) -> new BiomePipeline.BiomePipelineBuilder(3)
.addStage(new ExpanderStage(new FractalExpander(whiteNoise(1))))
.addStage(new MutatorStage(new ReplaceMutator("OCEAN_TEMP", oceanBiomes, whiteNoise(243))))
.addStage(new MutatorStage(new ReplaceMutator("LAND_TEMP", landBiomes, whiteNoise(243))))
.addStage(new ExpanderStage(new FractalExpander(whiteNoise(2))))
.addStage(new ExpanderStage(new FractalExpander(whiteNoise(2))))
.addStage(new MutatorStage(new SmoothMutator(whiteNoise(3))))
.addStage(new ExpanderStage(new FractalExpander(whiteNoise(4))))
.addStage(new MutatorStage(new BorderMutator("OCEAN", "LAND", whiteNoise(1234), beachBiomes)))
.addStage(new ExpanderStage(new FractalExpander(whiteNoise(5))))
.addStage(new ExpanderStage(new FractalExpander(whiteNoise(5))))
.addStage(new MutatorStage(new SmoothMutator(whiteNoise(6))))
.build(source)).build(0);
BiomeProvider provider = new StandardBiomeProvider.StandardBiomeProviderBuilder((seed) -> {
BiomePipeline pipeline = new BiomePipeline.BiomePipelineBuilder(2)
.addStage(new ExpanderStage(new FractalExpander(whiteNoise(1))))
.addStage(new MutatorStage(new ReplaceMutator("OCEAN_TEMP", oceanBiomes, whiteNoise(243))))
.addStage(new MutatorStage(new ReplaceMutator("LAND_TEMP", landBiomes, whiteNoise(243))))
.addStage(new ExpanderStage(new FractalExpander(whiteNoise(2))))
.addStage(new ExpanderStage(new FractalExpander(whiteNoise(2))))
.addStage(new MutatorStage(new SmoothMutator(whiteNoise(3))))
.addStage(new ExpanderStage(new FractalExpander(whiteNoise(4))))
.addStage(new ExpanderStage(new FractalExpander(whiteNoise(4))))
.addStage(new ExpanderStage(new FractalExpander(whiteNoise(4))))
.addStage(new ExpanderStage(new FractalExpander(whiteNoise(4))))
.addStage(new MutatorStage(new BorderMutator("OCEAN", "LAND", whiteNoise(1234), beachBiomes)))
.addStage(new MutatorStage(new SmoothMutator(whiteNoise(6))))
.addStage(new MutatorStage(new SmoothMutator(whiteNoise(6))))
.build(source);
System.out.println("Size: " + pipeline.getSize());
return pipeline;
}).build(0);
int size = 1000;