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Fix cache wackiness

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dfsek
2020-11-22 00:27:12 -07:00
parent 3dd08f30a7
commit 21d606853a
2 changed files with 22 additions and 14 deletions
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21
src/main/java/com/dfsek/terra/math/NoiseFunction2.java
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@@ -4,8 +4,9 @@ import com.dfsek.terra.generation.config.NoiseBuilder;
import org.polydev.gaea.math.FastNoiseLite;
import parsii.eval.Expression;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
public class NoiseFunction2 implements NoiseFunction {
private final FastNoiseLite gen;
@@ -40,16 +41,20 @@ public class NoiseFunction2 implements NoiseFunction {
return true;
}
private static class Cache {
private final HashMap<Long, Double> map = new HashMap<>();
private static class Cache extends LinkedHashMap<Long, Double> {
private static final long serialVersionUID = 8915092734723467010L;
public double get(FastNoiseLite noise, int x, int z) {
long key = (((long) x) << 32) + z;
long key = (long) x << 32 | z & 0xFFFFFFFFL;
return map.computeIfAbsent(key, k -> {
if(map.size() > 512) map.clear();
return noise.getNoise(x, z);
});
return computeIfAbsent(key, k -> noise.getNoise(x, z));
}
@Override
protected boolean removeEldestEntry(Map.Entry<Long, Double> eldest) {
int maxSize = 512;
return size() > maxSize;
}
}
}