Fix boatsanywhere not recognizing other than oak boats.

Other:
* Add and use BlockProperties.isWater.

NCPCore/src/main/java/fr/neatmonster/nocheatplus/checks/blockplace/BlockPlaceListener.java

@@ -48,6 +48,7 @@ import fr.neatmonster.nocheatplus.compat.Bridge1_9;
 import fr.neatmonster.nocheatplus.compat.BridgeMisc;
 import fr.neatmonster.nocheatplus.permissions.Permissions;
 import fr.neatmonster.nocheatplus.stats.Counters;
+import fr.neatmonster.nocheatplus.utilities.InventoryUtil;
 import fr.neatmonster.nocheatplus.utilities.ReflectionUtil;
 import fr.neatmonster.nocheatplus.utilities.TickTask;
 import fr.neatmonster.nocheatplus.utilities.map.BlockProperties;
@@ -331,7 +332,7 @@ public class BlockPlaceListener extends CheckListener {
 
         final BlockPlaceConfig cc = BlockPlaceConfig.getConfig(player);
         final Material type = stack.getType();
-        if (type == Material.BOAT) {
+        if (InventoryUtil.isBoat(type)) {
             if (cc.preventBoatsAnywhere) {
                 checkBoatsAnywhere(player, event);
             }
@@ -351,7 +352,7 @@ public class BlockPlaceListener extends CheckListener {
         final Material mat = block.getType();
 
         // TODO: allow lava ?
-        if (mat == Material.WATER || mat == Material.STATIONARY_WATER) {
+        if (BlockProperties.isWater(mat)) {
             return;
         }
 
@@ -359,7 +360,7 @@ public class BlockPlaceListener extends CheckListener {
         final Material relMat = relBlock.getType();
 
         // TODO: Placing inside of water, but not "against" ?
-        if (relMat == Material.WATER || relMat == Material.STATIONARY_WATER) {
+        if (BlockProperties.isWater(relMat)) {
             return;
         }
 

NCPCore/src/main/java/fr/neatmonster/nocheatplus/utilities/InventoryUtil.java

@@ -14,6 +14,11 @@
  */
 package fr.neatmonster.nocheatplus.utilities;
 
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Set;
+
 import org.bukkit.Material;
 import org.bukkit.entity.Player;
 import org.bukkit.event.inventory.InventoryType;
@@ -32,6 +37,50 @@ import fr.neatmonster.nocheatplus.utilities.map.BlockProperties;
  */
 public class InventoryUtil {
 
+    // TODO: Better location for the boat/item stuff than InventoryUtil.
+    private static final Set<Material> boats = new HashSet<Material>();
+
+    static {
+        boats.add(Material.BOAT);
+        boats.addAll(collectItemsByPrefix("BOAT_")); // Oops: prefix.
+    }
+
+    /**
+     * Collect non-block items by suffix of their Material name (case insensitive).
+     * @param suffix
+     * @return
+     */
+    public static List<Material> collectItemsBySuffix(String suffix) {
+        suffix = suffix.toLowerCase();
+        final List<Material> res = new LinkedList<Material>();
+        for (final Material mat : Material.values()) {
+            if (!mat.isBlock() && mat.name().toLowerCase().endsWith(suffix)) {
+                res.add(mat);
+            }
+        }
+        return res;
+    }
+
+    /**
+     * Collect non-block items by suffix of their Material name (case insensitive).
+     * @param prefix
+     * @return
+     */
+    public static List<Material> collectItemsByPrefix(String prefix) {
+        prefix = prefix.toLowerCase();
+        final List<Material> res = new LinkedList<Material>();
+        for (final Material mat : Material.values()) {
+            if (!mat.isBlock() && mat.name().toLowerCase().startsWith(prefix)) {
+                res.add(mat);
+            }
+        }
+        return res;
+    }
+
+    public static boolean isBoat(final Material mat) {
+        return boats.contains(mat);
+    }
+
     /**
      * Does not account for special slots like armor.
      *

NCPCore/src/main/java/fr/neatmonster/nocheatplus/utilities/map/BlockProperties.java

@@ -623,7 +623,7 @@ public class BlockProperties {
     public static final long F_MIN_HEIGHT16_1           = 0x80000000; // TODO: Lily pad min height of MC versions?
 
     // TODO: Convenience constants combining all height / minheight flags.
-    
+
     // TODO: When flags are out, switch to per-block classes :p.
 
     // Special case activation flags.
@@ -2100,6 +2100,25 @@ public class BlockProperties {
         return (blockFlags[id] & F_LIQUID) != 0;
     }
 
+    /**
+     * Test for water type of blocks.
+     * 
+     * @param blockType
+     * @return
+     */
+    public static final boolean isWater(final Material blockType) {
+        return isWater(getId(blockType));
+    }
+
+    /**
+     * Test for water type of blocks.
+     * @param id
+     * @return
+     */
+    public static final boolean isWater(final int id) {
+        return (blockFlags[id] & F_WATER) != 0;
+    }
+
     /**
      * Checks if is ice.
      *