Auto stash before revert of "f"

src/main/java/com/volmit/iris/util/hunk/storage/MappedSyncHunk.java

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+/*
+ * Iris is a World Generator for Minecraft Bukkit Servers
+ * Copyright (c) 2021 Arcane Arts (Volmit Software)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.volmit.iris.util.hunk.storage;
+
+import com.volmit.iris.util.collection.KMap;
+import com.volmit.iris.util.function.Consumer4;
+import com.volmit.iris.util.function.Consumer4IO;
+import com.volmit.iris.util.hunk.Hunk;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.Map;
+
+@SuppressWarnings({"DefaultAnnotationParam", "Lombok"})
+@Data
+@EqualsAndHashCode(callSuper = false)
+public class MappedSyncHunk<T> extends StorageHunk<T> implements Hunk<T> {
+    private final Map<Integer, T> data;
+
+    public MappedSyncHunk(int w, int h, int d) {
+        super(w, h, d);
+        data = new HashMap<>();
+    }
+
+    public int getEntryCount() {
+        return data.size();
+    }
+
+    public boolean isMapped() {
+        return true;
+    }
+
+    public boolean isEmpty() {
+        synchronized(data)
+        {
+            return data.isEmpty();
+        }
+    }
+
+    @Override
+    public void setRaw(int x, int y, int z, T t) {
+        synchronized(data) {
+            if (t == null) {
+                data.remove(index(x, y, z));
+                return;
+            }
+
+            data.put(index(x, y, z), t);
+        }
+    }
+
+    private Integer index(int x, int y, int z) {
+        return (z * getWidth() * getHeight()) + (y * getWidth()) + x;
+    }
+
+    @Override
+    public synchronized Hunk<T> iterateSync(Consumer4<Integer, Integer, Integer, T> c) {
+        synchronized(data)
+        {
+            int idx, z;
+
+            for (Map.Entry<Integer, T> g : data.entrySet()) {
+                idx = g.getKey();
+                z = idx / (getWidth() * getHeight());
+                idx -= (z * getWidth() * getHeight());
+                c.accept(idx % getWidth(), idx / getWidth(), z, g.getValue());
+            }
+
+            return this;
+        }
+    }
+
+    @Override
+    public synchronized Hunk<T> iterateSyncIO(Consumer4IO<Integer, Integer, Integer, T> c) throws IOException {
+        synchronized(data)
+        {
+            int idx, z;
+
+            for (Map.Entry<Integer, T> g : data.entrySet()) {
+                idx = g.getKey();
+                z = idx / (getWidth() * getHeight());
+                idx -= (z * getWidth() * getHeight());
+                c.accept(idx % getWidth(), idx / getWidth(), z, g.getValue());
+            }
+
+            return this;
+        }
+    }
+
+    @Override
+    public void empty(T b) {
+        synchronized(data)
+        {
+            data.clear();
+        }
+    }
+
+    @Override
+    public T getRaw(int x, int y, int z) {
+        synchronized(data)
+        {
+            return data.get(index(x, y, z));
+        }
+    }
+}