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package net.minecraft.server;
import java.util.ArrayList;
import java.util.List;
public class AABBPool {
private final int a;
private final int b;
private final List pool = new ArrayList();
private int d = 0;
private int largestSize = 0;
private int resizeTime = 0;
public AABBPool(int i, int j) {
this.a = i;
this.b = j;
}
public AxisAlignedBB a(double d0, double d1, double d2, double d3, double d4, double d5) {
// CraftBukkit - don't pool objects indefinitely if thread doesn't adhere to contract
if (this.resizeTime == 0) return new AxisAlignedBB(d0, d1, d2, d3, d4, d5);
AxisAlignedBB axisalignedbb;
if (this.d >= this.pool.size()) {
axisalignedbb = new AxisAlignedBB(d0, d1, d2, d3, d4, d5);
this.pool.add(axisalignedbb);
} else {
axisalignedbb = (AxisAlignedBB) this.pool.get(this.d);
axisalignedbb.b(d0, d1, d2, d3, d4, d5);
}
++this.d;
return axisalignedbb;
}
public void a() {
if (this.d > this.largestSize) {
this.largestSize = this.d;
}
// CraftBukkit start - Intelligent cache
if ((this.resizeTime++ & 0xff) == 0) {
int newSize = this.pool.size() - (this.pool.size() >> 3);
// newSize will be 87.5%, but if we were not in that range, we clear some of the cache
if (newSize > this.largestSize) {
// Work down from size() to prevent insane array copies
for (int i = this.pool.size() - 1; i > newSize; i--) {
this.pool.remove(i);
}
}
this.largestSize = 0;
// this.resizeTime = 0; // We do not reset to zero; it doubles for a flag
}
// CraftBukkit end
this.d = 0;
}
public int c() {
return this.pool.size();
}
public int d() {
return this.d;
}
}
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