Basically finish the state system. Just 1 more bug that I'm encountering.

worldedit-bukkit/src/main/java/com/sk89q/worldedit/bukkit/BukkitBlockRegistry.java

@@ -28,7 +28,6 @@ import com.sk89q.worldedit.world.registry.PassthroughBlockMaterial;
 import org.bukkit.Material;
 
 import java.util.EnumMap;
-import java.util.List;
 import java.util.Map;
 
 import javax.annotation.Nullable;
@@ -39,17 +38,9 @@ public class BukkitBlockRegistry extends BundledBlockRegistry {
 
     @Nullable
     @Override
-    public BlockMaterial getMaterial(String id) {
-        return materialMap.computeIfAbsent(BukkitUtil.toMaterial(BlockTypes.get(id)),
-                material -> new BukkitBlockMaterial(BukkitBlockRegistry.super.getMaterial(id), material));
-    }
-
-    @Override
-    public List<Object> getPropertyValues(BlockType blockType, Property<?> property) {
-        if (WorldEditPlugin.getInstance().getBukkitImplAdapter() != null) {
-            return WorldEditPlugin.getInstance().getBukkitImplAdapter().getPropertyValues(blockType, property);
-        }
-        return super.getPropertyValues(blockType, property);
+    public BlockMaterial getMaterial(BlockType blockType) {
+        return materialMap.computeIfAbsent(BukkitUtil.toMaterial(blockType),
+                material -> new BukkitBlockMaterial(BukkitBlockRegistry.super.getMaterial(blockType), material));
     }
 
     @Nullable

worldedit-bukkit/src/main/java/com/sk89q/worldedit/bukkit/WorldEditPlugin.java

@@ -82,12 +82,13 @@ public class WorldEditPlugin extends JavaPlugin implements TabCompleter {
 
         WorldEdit worldEdit = WorldEdit.getInstance();
 
-        loadConfig(); // Load configuration
-        PermissionsResolverManager.initialize(this); // Setup permission resolver
-
         // Setup platform
         server = new BukkitServerInterface(this, getServer());
         worldEdit.getPlatformManager().register(server);
+        worldEdit.loadMappings();
+
+        loadConfig(); // Load configuration
+        PermissionsResolverManager.initialize(this); // Setup permission resolver
 
         // Register CUI
         getServer().getMessenger().registerIncomingPluginChannel(this, CUI_PLUGIN_CHANNEL, new CUIChannelListener(this));

worldedit-bukkit/src/main/java/com/sk89q/worldedit/bukkit/adapter/BukkitImplAdapter.java

@@ -28,7 +28,6 @@ import org.bukkit.Location;
 import org.bukkit.block.Biome;
 import org.bukkit.entity.Entity;
 
-import java.util.List;
 import java.util.Map;
 
 import javax.annotation.Nullable;
@@ -95,15 +94,6 @@ public interface BukkitImplAdapter {
     @Nullable
     Entity createEntity(Location location, BaseEntity state);
 
-
-    /**
-     * Get a list of values for a property.
-     *
-     * @param property The property
-     * @return The list of values
-     */
-    List<Object> getPropertyValues(BlockType blockType, Property<?> property);
-
     /**
      * Get a map of string -> properties
      *

worldedit-core/src/main/java/com/sk89q/worldedit/WorldEdit.java

@@ -100,9 +100,6 @@ public class WorldEdit {
     static {
         WorldEditPrefixHandler.register("com.sk89q.worldedit");
         getVersion();
-        BundledBlockData.getInstance(); // Load block registry
-        BundledItemData.getInstance(); // Load item registry
-        LegacyMapper.getInstance(); // Load item registry
     }
 
     private WorldEdit() {
@@ -283,6 +280,15 @@ public class WorldEdit {
         }
     }
 
+    /**
+     * Load the bundled mappings.
+     */
+    public void loadMappings() {
+        BundledBlockData.getInstance(); // Load block registry
+        BundledItemData.getInstance(); // Load item registry
+        LegacyMapper.getInstance(); // Load item registry
+    }
+
     /**
      * Checks to see if the specified radius is within bounds.
      *

worldedit-core/src/main/java/com/sk89q/worldedit/extension/factory/DefaultBlockParser.java

@@ -45,7 +45,6 @@ import com.sk89q.worldedit.world.block.BlockStateHolder;
 import com.sk89q.worldedit.world.block.BlockType;
 import com.sk89q.worldedit.world.block.BlockTypes;
 
-import java.util.Arrays;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.regex.Matcher;
@@ -78,7 +77,6 @@ class DefaultBlockParser extends InputParser<BlockStateHolder> {
     public BlockStateHolder parseFromInput(String input, ParserContext context)
             throws InputParseException {
         String originalInput = input;
-        input = input.replace("_", " ");
         input = input.replace(";", "|");
         Exception suppressed = null;
         try {
@@ -162,8 +160,7 @@ class DefaultBlockParser extends InputParser<BlockStateHolder> {
                         throw new NoMatchException("Bad state format in " + parseableData);
                     }
 
-                    Property propertyKey = WorldEdit.getInstance().getPlatformManager().queryCapability(Capability.GAME_HOOKS)
-                            .getRegistries().getBlockRegistry().getProperties(state.getBlockType()).get(parts[0]);
+                    Property propertyKey = state.getBlockType().getPropertyMap().get(parts[0]);
                     if (propertyKey == null) {
                         throw new NoMatchException("Unknown state " + parts[0] + " for block " + state.getBlockType().getName());
                     }
@@ -176,6 +173,7 @@ class DefaultBlockParser extends InputParser<BlockStateHolder> {
                 } catch (NoMatchException e) {
                     throw e; // Pass-through
                 } catch (Exception e) {
+                    e.printStackTrace();
                     throw new NoMatchException("Unknown state '" + parseableData + "'");
                 }
             }

worldedit-core/src/main/java/com/sk89q/worldedit/extension/platform/PlatformManager.java

@@ -165,6 +165,9 @@ public class PlatformManager {
         if (platform != null) {
             return platform;
         } else {
+            if (preferences.isEmpty()) {
+                return platforms.get(0); // Use the first available if preferences have not been decided yet.
+            }
             throw new NoCapablePlatformException("No platform was found supporting " + capability.name());
         }
     }

worldedit-core/src/main/java/com/sk89q/worldedit/extent/transform/BlockTransformExtent.java

@@ -22,20 +22,17 @@ package com.sk89q.worldedit.extent.transform;
 import static com.google.common.base.Preconditions.checkNotNull;
 
 import com.sk89q.worldedit.Vector;
-import com.sk89q.worldedit.WorldEdit;
 import com.sk89q.worldedit.WorldEditException;
 import com.sk89q.worldedit.blocks.BaseBlock;
 import com.sk89q.worldedit.blocks.LazyBlock;
-import com.sk89q.worldedit.world.block.BlockState;
-import com.sk89q.worldedit.world.block.BlockStateHolder;
-import com.sk89q.worldedit.extension.platform.Capability;
 import com.sk89q.worldedit.extent.AbstractDelegateExtent;
 import com.sk89q.worldedit.extent.Extent;
 import com.sk89q.worldedit.math.transform.Transform;
 import com.sk89q.worldedit.registry.state.DirectionalProperty;
 import com.sk89q.worldedit.registry.state.Property;
-
-import java.util.Map;
+import com.sk89q.worldedit.util.Direction;
+import com.sk89q.worldedit.world.block.BlockState;
+import com.sk89q.worldedit.world.block.BlockStateHolder;
 
 import javax.annotation.Nullable;
 
@@ -127,14 +124,7 @@ public class BlockTransformExtent extends AbstractDelegateExtent {
         checkNotNull(block);
         checkNotNull(transform);
 
-        Map<String, ? extends Property> states = WorldEdit.getInstance().getPlatformManager()
-                .queryCapability(Capability.GAME_HOOKS).getRegistries().getBlockRegistry().getProperties(block.getBlockType());
-
-        if (states == null) {
-            return changedBlock;
-        }
-
-        for (Property property : states.values()) {
+        for (Property property : block.getBlockType().getProperties()) {
             if (property instanceof DirectionalProperty) {
                 Vector value = (Vector) block.getState(property);
                 if (value != null) {
@@ -164,11 +154,11 @@ public class BlockTransformExtent extends AbstractDelegateExtent {
         double closest = -2;
         boolean found = false;
 
-        for (Vector v : state.getValues()) {
-            double dot = v.normalize().dot(newDirection);
+        for (Direction v : state.getValues()) {
+            double dot = v.toVector().normalize().dot(newDirection);
             if (dot >= closest) {
                 closest = dot;
-                newValue = v;
+                newValue = v.toVector();
                 found = true;
             }
         }

worldedit-core/src/main/java/com/sk89q/worldedit/registry/state/AbstractProperty.java

@@ -21,15 +21,21 @@ package com.sk89q.worldedit.registry.state;
 
 import static com.google.common.base.Preconditions.checkState;
 
+import java.util.List;
+
 public abstract class AbstractProperty<T> implements Property<T> {
 
     private String name;
+    private List<T> values;
 
-    public AbstractProperty() {
+    public AbstractProperty(final String name, final List<T> values) {
+        this.name = name;
+        this.values = values;
     }
 
-    public AbstractProperty(final String name) {
-        this.name = name;
+    @Override
+    public List<T> getValues() {
+        return this.values;
     }
 
     @Override

worldedit-core/src/main/java/com/sk89q/worldedit/registry/state/BooleanProperty.java

@@ -25,14 +25,17 @@ import javax.annotation.Nullable;
 
 public class BooleanProperty extends AbstractProperty<Boolean> {
 
-    @Override
-    public List<Boolean> getValues() {
-        return null;
+    public BooleanProperty(final String name, final List<Boolean> values) {
+        super(name, values);
     }
 
     @Nullable
     @Override
     public Boolean getValueFor(String string) {
-        return null;
+        boolean val = Boolean.parseBoolean(string);
+        if (!getValues().contains(val)) {
+            throw new IllegalArgumentException("Invalid boolean value: " + string + ". Must be in " + getValues().toString());
+        }
+        return val;
     }
 }

worldedit-core/src/main/java/com/sk89q/worldedit/registry/state/DirectionalProperty.java

@@ -19,21 +19,25 @@
 
 package com.sk89q.worldedit.registry.state;
 
-import com.sk89q.worldedit.Vector;
+import com.sk89q.worldedit.util.Direction;
 
 import java.util.List;
 
 import javax.annotation.Nullable;
 
-public class DirectionalProperty extends AbstractProperty<Vector> {
-    @Override
-    public List<Vector> getValues() {
-        return null;
+public class DirectionalProperty extends AbstractProperty<Direction> {
+
+    public DirectionalProperty(final String name, final List<Direction> values) {
+        super(name, values);
     }
 
     @Nullable
     @Override
-    public Vector getValueFor(final String string) {
-        return null;
+    public Direction getValueFor(final String string) {
+        Direction direction = Direction.valueOf(string);
+        if (!getValues().contains(direction)) {
+            throw new IllegalArgumentException("Invalid direction value: " + string + ". Must be in " + getValues().toString());
+        }
+        return direction;
     }
 }

worldedit-core/src/main/java/com/sk89q/worldedit/registry/state/EnumProperty.java

@@ -25,14 +25,16 @@ import javax.annotation.Nullable;
 
 public class EnumProperty extends AbstractProperty<String> {
 
-    @Override
-    public List<String> getValues() {
-        return null;
+    public EnumProperty(final String name, final List<String> values) {
+        super(name, values);
     }
 
     @Nullable
     @Override
     public String getValueFor(String string) {
-        return null;
+        if (!getValues().contains(string)) {
+            throw new IllegalArgumentException("Invalid value: " + string + ". Must be in " + getValues().toString());
+        }
+        return string;
     }
 }

worldedit-core/src/main/java/com/sk89q/worldedit/registry/state/IntegerProperty.java

@@ -25,14 +25,21 @@ import javax.annotation.Nullable;
 
 public class IntegerProperty extends AbstractProperty<Integer> {
 
-    @Override
-    public List<Integer> getValues() {
-        return null;
+    public IntegerProperty(final String name, final List<Integer> values) {
+        super(name, values);
     }
 
     @Nullable
     @Override
     public Integer getValueFor(String string) {
-        return null;
+        try {
+            int val = Integer.parseInt(string);
+            if (!getValues().contains(val)) {
+                throw new IllegalArgumentException("Invalid int value: " + string + ". Must be in " + getValues().toString());
+            }
+            return val;
+        } catch (NumberFormatException e) {
+            throw new IllegalArgumentException("Invalid int value: " + string + ". Not an int.");
+        }
     }
 }

worldedit-core/src/main/java/com/sk89q/worldedit/registry/state/Property.java

@@ -50,7 +50,8 @@ public interface Property<T> {
      *
      * @param string The string
      * @return The value, or null
+     * @throws IllegalArgumentException When the value is invalid.
      */
     @Nullable
-    T getValueFor(String string);
+    T getValueFor(String string) throws IllegalArgumentException;
 }

worldedit-core/src/main/java/com/sk89q/worldedit/world/block/BlockState.java

@@ -21,6 +21,7 @@ package com.sk89q.worldedit.world.block;
 
 import com.google.common.collect.ArrayTable;
 import com.google.common.collect.HashBasedTable;
+import com.google.common.collect.Lists;
 import com.google.common.collect.Maps;
 import com.google.common.collect.Table;
 import com.sk89q.worldedit.registry.state.Property;
@@ -28,8 +29,10 @@ import com.sk89q.worldedit.registry.state.Property;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.HashMap;
+import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.stream.Collectors;
 
 /**
  * An immutable class that represents the state a block can be in.
@@ -46,7 +49,7 @@ public class BlockState implements BlockStateHolder<BlockState> {
 
     BlockState(BlockType blockType) {
         this.blockType = blockType;
-        this.values = new HashMap<>();
+        this.values = new LinkedHashMap<>();
         this.fuzzy = false;
     }
 
@@ -62,6 +65,34 @@ public class BlockState implements BlockStateHolder<BlockState> {
         this.fuzzy = true;
     }
 
+    public static Map<Map<Property<?>, Object>, BlockState> generateStateMap(BlockType blockType) {
+        List<? extends Property> properties = blockType.getProperties();
+        List<List<Object>> valueLists = Lists.cartesianProduct(properties.stream().map(Property::getValues).collect(Collectors.toList()));
+        Map<Map<Property<?>, Object>, BlockState> stateMap = new LinkedHashMap<>();
+        for (int i = 0; i < valueLists.size(); i++) {
+            List<Object> valueList = valueLists.get(i);
+            Property<?> property = properties.get(i);
+            LinkedHashMap<Property<?>, Object> valueMap = new LinkedHashMap<>();
+            BlockState stateMaker = new BlockState(blockType);
+            for (Object value : valueList) {
+                valueMap.put(property, value);
+                stateMaker.setState(property, value);
+            }
+            stateMap.put(valueMap, stateMaker);
+        }
+
+        if (stateMap.isEmpty()) {
+            // No properties.
+            stateMap.put(new LinkedHashMap<>(), new BlockState(blockType));
+        }
+
+        for (BlockState state : stateMap.values()) {
+            state.populate(stateMap);
+        }
+
+        return stateMap;
+    }
+
     public void populate(Map<Map<Property<?>, Object>, BlockState> stateMap) {
         final Table<Property<?>, Object, BlockState> states = HashBasedTable.create();
 
@@ -154,7 +185,7 @@ public class BlockState implements BlockStateHolder<BlockState> {
      * @param value The value
      * @return The blockstate, for chaining
      */
-    private <V> BlockState setState(final Property<V> property, final V value) {
+    private BlockState setState(final Property<?> property, final Object value) {
         this.values.put(property, value);
         return this;
     }

worldedit-core/src/main/java/com/sk89q/worldedit/world/block/BlockType.java

@@ -19,15 +19,21 @@
 
 package com.sk89q.worldedit.world.block;
 
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableMap;
 import com.sk89q.worldedit.WorldEdit;
 import com.sk89q.worldedit.blocks.BlockMaterial;
 import com.sk89q.worldedit.extension.platform.Capability;
 import com.sk89q.worldedit.registry.NamespacedRegistry;
+import com.sk89q.worldedit.registry.state.Property;
 import com.sk89q.worldedit.world.item.ItemType;
 import com.sk89q.worldedit.world.item.ItemTypes;
 import com.sk89q.worldedit.world.registry.BundledBlockData;
 import com.sk89q.worldedit.world.registry.LegacyMapper;
 
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
 import java.util.function.Function;
 
 import javax.annotation.Nullable;
@@ -38,6 +44,8 @@ public class BlockType {
 
     private String id;
     private BlockState defaultState;
+    private Map<String, ? extends Property> properties;
+    private BlockMaterial blockMaterial;
 
     public BlockType(String id) {
         this(id, null);
@@ -49,7 +57,7 @@ public class BlockType {
             id = "minecraft:" + id;
         }
         this.id = id;
-        this.defaultState = new BlockState(this);
+        this.defaultState = new ArrayList<>(BlockState.generateStateMap(this).values()).get(0);
         if (values != null) {
             this.defaultState = values.apply(this.defaultState);
         }
@@ -78,6 +86,28 @@ public class BlockType {
         }
     }
 
+    /**
+     * Gets the properties of this BlockType in a key->property mapping.
+     *
+     * @return The properties map
+     */
+    public Map<String, ? extends Property> getPropertyMap() {
+        if (properties == null) {
+            properties = ImmutableMap.copyOf(WorldEdit.getInstance().getPlatformManager()
+                    .queryCapability(Capability.GAME_HOOKS).getRegistries().getBlockRegistry().getProperties(this));
+        }
+        return this.properties;
+    }
+
+    /**
+     * Gets the properties of this BlockType.
+     *
+     * @return the properties
+     */
+    public List<? extends Property> getProperties() {
+        return ImmutableList.copyOf(this.getPropertyMap().values());
+    }
+
     /**
      * Gets the default state of this block type.
      *
@@ -112,7 +142,10 @@ public class BlockType {
      * @return The material
      */
     public BlockMaterial getMaterial() {
-        return WorldEdit.getInstance().getPlatformManager().queryCapability(Capability.GAME_HOOKS).getRegistries().getBlockRegistry().getMaterial(this.id);
+        if (this.blockMaterial == null) {
+            this.blockMaterial = WorldEdit.getInstance().getPlatformManager().queryCapability(Capability.GAME_HOOKS).getRegistries().getBlockRegistry().getMaterial(this);
+        }
+        return this.blockMaterial;
     }
 
     /**

worldedit-core/src/main/java/com/sk89q/worldedit/world/registry/BlockRegistry.java

@@ -36,20 +36,11 @@ public interface BlockRegistry {
     /**
      * Get the material for the given block.
      *
-     * @param id the block
+     * @param blockType the block
      * @return the material, or null if the material information is not known
      */
     @Nullable
-    BlockMaterial getMaterial(String id);
-
-    /**
-     * Get an unmodifiable list of values for this property.
-     *
-     * @param blockType The block
-     * @param property the property
-     * @return the list of values
-     */
-    List<Object> getPropertyValues(BlockType blockType, Property<?> property);
+    BlockMaterial getMaterial(BlockType blockType);
 
     /**
      * Get an unmodifiable map of states for this block.

worldedit-core/src/main/java/com/sk89q/worldedit/world/registry/BundledBlockData.java

@@ -52,7 +52,7 @@ import javax.annotation.Nullable;
 public class BundledBlockData {
 
     private static final Logger log = Logger.getLogger(BundledBlockData.class.getCanonicalName());
-    private static final BundledBlockData INSTANCE = new BundledBlockData();
+    private static BundledBlockData INSTANCE;
 
     private final Map<String, BlockEntry> idMap = new HashMap<>();
 
@@ -125,6 +125,9 @@ public class BundledBlockData {
      * @return the instance
      */
     public static BundledBlockData getInstance() {
+        if (INSTANCE == null) {
+            INSTANCE = new BundledBlockData();
+        }
         return INSTANCE;
     }
 

worldedit-core/src/main/java/com/sk89q/worldedit/world/registry/BundledBlockRegistry.java

@@ -24,7 +24,6 @@ import com.sk89q.worldedit.registry.state.Property;
 import com.sk89q.worldedit.world.block.BlockType;
 
 import java.util.Collections;
-import java.util.List;
 import java.util.Map;
 
 import javax.annotation.Nullable;
@@ -37,13 +36,8 @@ public class BundledBlockRegistry implements BlockRegistry {
 
     @Nullable
     @Override
-    public BlockMaterial getMaterial(String id) {
-        return new PassthroughBlockMaterial(BundledBlockData.getInstance().getMaterialById(id));
-    }
-
-    @Override
-    public List<Object> getPropertyValues(BlockType blockType, Property<?> property) {
-        return Collections.emptyList(); // Oof
+    public BlockMaterial getMaterial(BlockType blockType) {
+        return new PassthroughBlockMaterial(BundledBlockData.getInstance().getMaterialById(blockType.getId()));
     }
 
     @Nullable

worldedit-core/src/main/java/com/sk89q/worldedit/world/registry/BundledItemData.java

@@ -51,7 +51,7 @@ import javax.annotation.Nullable;
 public class BundledItemData {
 
     private static final Logger log = Logger.getLogger(BundledItemData.class.getCanonicalName());
-    private static final BundledItemData INSTANCE = new BundledItemData();
+    private static BundledItemData INSTANCE;
 
     private final Map<String, ItemEntry> idMap = new HashMap<>();
 
@@ -108,6 +108,9 @@ public class BundledItemData {
      * @return the instance
      */
     public static BundledItemData getInstance() {
+        if (INSTANCE == null) {
+            INSTANCE = new BundledItemData();
+        }
         return INSTANCE;
     }
 

worldedit-core/src/main/java/com/sk89q/worldedit/world/registry/LegacyMapper.java

@@ -46,7 +46,7 @@ import javax.annotation.Nullable;
 public class LegacyMapper {
 
     private static final Logger log = Logger.getLogger(LegacyMapper.class.getCanonicalName());
-    private static final LegacyMapper INSTANCE = new LegacyMapper();
+    private static LegacyMapper INSTANCE;
 
     private BiMap<String, BlockState> blockMap = HashBiMap.create();
     private BiMap<String, ItemType> itemMap = HashBiMap.create();
@@ -141,6 +141,9 @@ public class LegacyMapper {
     }
 
     public static LegacyMapper getInstance() {
+        if (INSTANCE == null) {
+            INSTANCE = new LegacyMapper();
+        }
         return INSTANCE;
     }