Working on fixing plot setup

PlotSquared/src/main/java/com/intellectualcrafters/plot/util/SetBlockQueue.java

@@ -0,0 +1,198 @@
+package com.intellectualcrafters.plot.util;
+
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.Map.Entry;
+
+import com.intellectualcrafters.plot.PlotSquared;
+import com.intellectualcrafters.plot.object.PlotBlock;
+import com.intellectualcrafters.plot.util.TaskManager;
+
+public class SetBlockQueue {
+    
+    private volatile static HashMap<ChunkWrapper, PlotBlock[][]> blocks;
+    private volatile static int allocate = 50;
+    private volatile static boolean running = false;
+    private volatile static boolean locked = false;
+    private volatile static HashSet<Runnable> runnables;
+    
+    public synchronized static void allocate(int t) {
+        allocate = t;
+    }
+    
+    public synchronized static void addNotify(Runnable whenDone) {
+        if (runnables == null) {
+            TaskManager.runTask(whenDone);
+        }
+        else {
+            runnables.add(whenDone);
+        }
+    }
+    
+    public synchronized static void init() {
+        if (blocks == null) {
+            blocks = new HashMap<>();
+            runnables = new HashSet<>();
+        }
+        if (!running) {
+            TaskManager.index.increment();
+            final int current = TaskManager.index.intValue();
+            int task = TaskManager.runTaskRepeat(new Runnable() {
+                @Override
+                public void run() {
+                    if (locked) {
+                        return;
+                    }
+                    if (blocks.size() == 0) {
+                        PlotSquared.TASK.cancelTask(TaskManager.tasks.get(current));
+                        for (Runnable runnable : runnables) {
+                            TaskManager.runTask(runnable);
+                        }
+                        runnables = null;
+                        blocks = null;
+                        running = false;
+                        return;
+                    }
+                    long start = System.currentTimeMillis() + allocate;
+                    Iterator<Entry<ChunkWrapper, PlotBlock[][]>> i = blocks.entrySet().iterator();
+                    while (System.currentTimeMillis() < start && i.hasNext()) {
+                        if (locked) {
+                            return;
+                        }
+                        Entry<ChunkWrapper, PlotBlock[][]> n = i.next();
+                        i.remove();
+                        ChunkWrapper chunk = n.getKey();
+                        int X = chunk.x << 4;
+                        int Z = chunk.z << 4;
+                        PlotBlock[][] blocks = n.getValue();
+                        String world = chunk.world;
+                        for (int j = 0; j < blocks.length; j++) {
+                            PlotBlock[] blocksj = blocks[j];
+                            if (blocksj != null) {
+                                for (int k = 0; k < blocksj.length; k++) {
+                                    PlotBlock block = blocksj[k];
+                                    if (block != null) {
+                                        final int y = (j << 4) + (k >> 8);
+                                        final int a = (k - ((y & 0xF) << 8));
+                                        final int z = (a >> 4);
+                                        final int x = a - (z << 4);
+                                        BlockManager.manager.functionSetBlock(world, X + x, y, Z + z, block.id, block.data);
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+            }, 5);
+            TaskManager.tasks.put(current, task);
+            running = true;
+        }
+    }
+     
+    public static void setBlock(final String world, int x, final int y, int z, final PlotBlock block) {
+        locked = true;
+        if (!running) {
+            init();
+        }
+        int X = x >> 4;
+        int Z = z >> 4;
+        x -= X << 4;
+        z -= Z << 4;
+        
+        ChunkWrapper wrap = new ChunkWrapper(world, X, Z);
+        PlotBlock[][] result = blocks.get(wrap);
+        if (!blocks.containsKey(wrap)) {
+            result = new PlotBlock[16][];
+            blocks.put(wrap, result);
+        }
+        if (result[y >> 4] == null) {
+            result[y >> 4] = new PlotBlock[4096];
+        }
+        result[y >> 4][((y & 0xF) << 8) | (z << 4) | x] = block;
+        locked = false;
+    }
+    
+    private static int lastInt = 0;
+    private static PlotBlock lastBlock = new PlotBlock((short) 0, (byte) 0);
+    
+    public static void setBlock(final String world, int x, final int y, int z, final int id) {
+        locked = true;
+        if (!running) {
+            init();
+        }
+        int X = x >> 4;
+        int Z = z >> 4;
+        x -= X << 4;
+        z -= Z << 4;
+        
+        ChunkWrapper wrap = new ChunkWrapper(world, X, Z);
+        PlotBlock[][] result = blocks.get(wrap);
+        if (!blocks.containsKey(wrap)) {
+            result = new PlotBlock[16][];
+            blocks.put(wrap, result);
+        }
+        if (result[y >> 4] == null) {
+            result[y >> 4] = new PlotBlock[4096];
+        }
+        if (id == lastInt) {
+            result[y >> 4][((y & 0xF) << 8) | (z << 4) | x] = lastBlock;
+        }
+        else {
+            lastInt = id;
+            lastBlock = new PlotBlock((short) id, (byte) 0);
+        }
+        result[y >> 4][((y & 0xF) << 8) | (z << 4) | x] = lastBlock;
+        locked = false;
+    }
+    
+    public static class ChunkWrapper {
+        final int x; 
+        final int z;
+        final String world;
+        
+        public ChunkWrapper(String world, int x, int z) {
+            this.world = world;
+            this.x = x;
+            this.z = z;
+        }
+        
+        @Override
+        public int hashCode() {
+            int result;
+            if (this.x >= 0) {
+                if (this.z >= 0) {
+                    result = (this.x * this.x) + (3 * this.x) + (2 * this.x * this.z) + this.z + (this.z * this.z);
+                } else {
+                    final int y1 = -this.z;
+                    result = (this.x * this.x) + (3 * this.x) + (2 * this.x * y1) + y1 + (y1 * y1) + 1;
+                }
+            } else {
+                final int x1 = -this.x;
+                if (this.z >= 0) {
+                    result = -((x1 * x1) + (3 * x1) + (2 * x1 * this.z) + this.z + (this.z * this.z));
+                } else {
+                    final int y1 = -this.z;
+                    result = -((x1 * x1) + (3 * x1) + (2 * x1 * y1) + y1 + (y1 * y1) + 1);
+                }
+            }
+            result = result * 31 + world.hashCode();
+            return result;
+        }
+        
+        @Override
+        public boolean equals(Object obj) {
+            if (this == obj) {
+                return true;
+            }
+            if (obj == null) {
+                return false;
+            }
+            if (getClass() != obj.getClass()) {
+                return false;
+            }
+            final ChunkWrapper other = (ChunkWrapper) obj;
+            return ((this.x == other.x) && (this.z == other.z) && (this.world.equals(other.world)));
+        }
+    }
+}