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package net.minecraft.server;
import java.util.ArrayList;
import java.util.Arrays;
public class LongHashset<V> extends LongHash<V> {
long values[][][] = new long[256][][];
int count = 0;
public boolean isEmpty() {
return count == 0;
}
public void add(int msw, int lsw) {
add(toLong(msw, lsw));
}
public void add(long key) {
int mainIdx = (int) (key & 255);
int outerIdx = (int) ((key >> 32) & 255);
long outer[][] = values[mainIdx], inner[];
if(outer == null) values[mainIdx] = outer = new long[256][];
inner = outer[outerIdx];
if(inner == null) {
outer[outerIdx] = inner = new long[1];
inner[0] = key;
count++;
}
else {
int i;
for(i = 0; i < inner.length; i++) {
if(inner[i] == key) {
return;
}
}
outer[outerIdx] = inner = Arrays.copyOf(inner, i+1);
inner[i] = key;
count++;
}
}
public boolean containsKey(long key) {
int mainIdx = (int) (key & 255);
int outerIdx = (int) ((key >> 32) & 255);
long outer[][] = values[mainIdx], inner[];
if(outer == null) return false;
inner = outer[outerIdx];
if(inner == null) return false;
else {
for(long entry : inner) {
if(entry == key) return true;
}
return false;
}
}
public void remove(long key) {
long[][] outer = this.values[(int) (key & 255)];
if (outer == null) return;
long[] inner = outer[(int) ((key >> 32) & 255)];
if (inner == null) return;
int max = inner.length - 1;
for(int i = 0; i <= max; i++) {
if(inner[i] == key) {
count--;
if(i != max) {
inner[i] = inner[max];
}
outer[(int) ((key >> 32) & 255)] = (max == 0 ? null : Arrays.copyOf(inner, max));
return;
}
}
}
public long popFirst() {
for(long[][] outer : values) {
if(outer == null) continue;
for(int i = 0; i < outer.length ; i++) {
long[] inner = outer[i];
if(inner == null || inner.length == 0) continue;
count--;
long ret = inner[inner.length - 1];
outer[i] = Arrays.copyOf(inner, inner.length - 1);
return ret;
}
}
return 0;
}
public long[] keys() {
int index = 0;
long ret[] = new long[count];
for(long[][] outer : values) {
if(outer == null) continue;
for(long[] inner : outer) {
if(inner == null) continue;
for(long entry : inner) {
ret[index++] = entry;
}
}
}
return ret;
}
}
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