Add files from mc-dev for diff visibility

src/main/java/net/minecraft/server/IntHashMap.java

@@ -0,0 +1,167 @@
+package net.minecraft.server;
+
+import java.util.HashSet;
+import java.util.Set;
+
+public class IntHashMap {
+
+    private transient IntHashMapEntry[] a = new IntHashMapEntry[16];
+    private transient int b;
+    private int c = 12;
+    private final float d = 0.75F;
+    private transient volatile int e;
+    private Set f = new HashSet();
+
+    public IntHashMap() {}
+
+    private static int g(int i) {
+        i ^= i >>> 20 ^ i >>> 12;
+        return i ^ i >>> 7 ^ i >>> 4;
+    }
+
+    private static int a(int i, int j) {
+        return i & j - 1;
+    }
+
+    public Object get(int i) {
+        int j = g(i);
+
+        for (IntHashMapEntry inthashmapentry = this.a[a(j, this.a.length)]; inthashmapentry != null; inthashmapentry = inthashmapentry.c) {
+            if (inthashmapentry.a == i) {
+                return inthashmapentry.b;
+            }
+        }
+
+        return null;
+    }
+
+    public boolean b(int i) {
+        return this.c(i) != null;
+    }
+
+    final IntHashMapEntry c(int i) {
+        int j = g(i);
+
+        for (IntHashMapEntry inthashmapentry = this.a[a(j, this.a.length)]; inthashmapentry != null; inthashmapentry = inthashmapentry.c) {
+            if (inthashmapentry.a == i) {
+                return inthashmapentry;
+            }
+        }
+
+        return null;
+    }
+
+    public void a(int i, Object object) {
+        this.f.add(Integer.valueOf(i));
+        int j = g(i);
+        int k = a(j, this.a.length);
+
+        for (IntHashMapEntry inthashmapentry = this.a[k]; inthashmapentry != null; inthashmapentry = inthashmapentry.c) {
+            if (inthashmapentry.a == i) {
+                inthashmapentry.b = object;
+                return;
+            }
+        }
+
+        ++this.e;
+        this.a(j, i, object, k);
+    }
+
+    private void h(int i) {
+        IntHashMapEntry[] ainthashmapentry = this.a;
+        int j = ainthashmapentry.length;
+
+        if (j == 1073741824) {
+            this.c = Integer.MAX_VALUE;
+        } else {
+            IntHashMapEntry[] ainthashmapentry1 = new IntHashMapEntry[i];
+
+            this.a(ainthashmapentry1);
+            this.a = ainthashmapentry1;
+            this.c = (int) ((float) i * this.d);
+        }
+    }
+
+    private void a(IntHashMapEntry[] ainthashmapentry) {
+        IntHashMapEntry[] ainthashmapentry1 = this.a;
+        int i = ainthashmapentry.length;
+
+        for (int j = 0; j < ainthashmapentry1.length; ++j) {
+            IntHashMapEntry inthashmapentry = ainthashmapentry1[j];
+
+            if (inthashmapentry != null) {
+                ainthashmapentry1[j] = null;
+
+                IntHashMapEntry inthashmapentry1;
+
+                do {
+                    inthashmapentry1 = inthashmapentry.c;
+                    int k = a(inthashmapentry.d, i);
+
+                    inthashmapentry.c = ainthashmapentry[k];
+                    ainthashmapentry[k] = inthashmapentry;
+                    inthashmapentry = inthashmapentry1;
+                } while (inthashmapentry1 != null);
+            }
+        }
+    }
+
+    public Object d(int i) {
+        this.f.remove(Integer.valueOf(i));
+        IntHashMapEntry inthashmapentry = this.e(i);
+
+        return inthashmapentry == null ? null : inthashmapentry.b;
+    }
+
+    final IntHashMapEntry e(int i) {
+        int j = g(i);
+        int k = a(j, this.a.length);
+        IntHashMapEntry inthashmapentry = this.a[k];
+
+        IntHashMapEntry inthashmapentry1;
+        IntHashMapEntry inthashmapentry2;
+
+        for (inthashmapentry1 = inthashmapentry; inthashmapentry1 != null; inthashmapentry1 = inthashmapentry2) {
+            inthashmapentry2 = inthashmapentry1.c;
+            if (inthashmapentry1.a == i) {
+                ++this.e;
+                --this.b;
+                if (inthashmapentry == inthashmapentry1) {
+                    this.a[k] = inthashmapentry2;
+                } else {
+                    inthashmapentry.c = inthashmapentry2;
+                }
+
+                return inthashmapentry1;
+            }
+
+            inthashmapentry = inthashmapentry1;
+        }
+
+        return inthashmapentry1;
+    }
+
+    public void c() {
+        ++this.e;
+        IntHashMapEntry[] ainthashmapentry = this.a;
+
+        for (int i = 0; i < ainthashmapentry.length; ++i) {
+            ainthashmapentry[i] = null;
+        }
+
+        this.b = 0;
+    }
+
+    private void a(int i, int j, Object object, int k) {
+        IntHashMapEntry inthashmapentry = this.a[k];
+
+        this.a[k] = new IntHashMapEntry(i, j, object, inthashmapentry);
+        if (this.b++ >= this.c) {
+            this.h(2 * this.a.length);
+        }
+    }
+
+    static int f(int i) {
+        return g(i);
+    }
+}