Made a checkMaxBrushRadius method for centralized use.

src/main/java/com/sk89q/worldedit/MaxBrushRadiusException.java

@@ -0,0 +1,10 @@
+package com.sk89q.worldedit;
+
+/**
+ * 
+ * Thrown when a maximum radius for a brush is reached.
+ *
+ */
+public class MaxBrushRadiusException extends MaxRadiusException {
+
+}

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

@@ -917,6 +917,18 @@ public class WorldEdit {
         }
     }
 
+    /**
+     * Checks to see if the specified brush radius is within bounds.
+     *
+     * @param radius
+     * @throws MaxBrushRadiusException
+     */
+    public void checkMaxBrushRadius(double radius) throws MaxBrushRadiusException {
+        if (config.maxBrushRadius > 0 && radius > config.maxBrushRadius) {
+            throw new MaxBrushRadiusException();
+        }
+    }
+
     /**
      * Get a file relative to the defined working directory. If the specified
      * path is absolute, then the working directory is not used.
@@ -1445,6 +1457,8 @@ public class WorldEdit {
         } catch (MaxChangedBlocksException e) {
             player.printError("Max blocks changed in an operation reached ("
                     + e.getBlockLimit() + ").");
+        } catch (MaxBrushRadiusException e) {
+            player.printError("Maximum allowed brush radius/height: " + config.maxBrushRadius);
         } catch (MaxRadiusException e) {
             player.printError("Maximum radius: " + config.maxRadius);
         } catch (UnknownDirectionException e) {

src/main/java/com/sk89q/worldedit/commands/BrushCommands.java

@@ -77,11 +77,7 @@ public class BrushCommands {
         LocalConfiguration config = we.getConfiguration();
 
         double radius = args.argsLength() > 1 ? args.getDouble(1) : 2;
-        if (radius > config.maxBrushRadius) {
+        we.checkMaxBrushRadius(radius);
-            player.printError("Maximum allowed brush radius: "
-                    + config.maxBrushRadius);
-            return;
-        }
 
         BrushTool tool = session.getBrushTool(player.getItemInHand());
         Pattern fill = we.getBlockPattern(player, args.getString(0));
@@ -116,18 +112,10 @@ public class BrushCommands {
         LocalConfiguration config = we.getConfiguration();
 
         double radius = args.argsLength() > 1 ? args.getDouble(1) : 2;
-        if (radius > config.maxBrushRadius) {
+        we.checkMaxBrushRadius(radius);
-            player.printError("Maximum allowed brush radius: "
-                    + config.maxBrushRadius);
-            return;
-        }
 
         int height = args.argsLength() > 2 ? args.getInteger(2) : 1;
-        if (height > config.maxBrushRadius) {
+        we.checkMaxBrushRadius(height);
-            player.printError("Maximum allowed brush radius/height: "
-                    + config.maxBrushRadius);
-            return;
-        }
 
         BrushTool tool = session.getBrushTool(player.getItemInHand());
         Pattern fill = we.getBlockPattern(player, args.getString(0));
@@ -170,13 +158,9 @@ public class BrushCommands {
 
         Vector size = clipboard.getSize();
 
-        if (size.getBlockX() > config.maxBrushRadius
+        we.checkMaxBrushRadius(size.getBlockX());
-                || size.getBlockY() > config.maxBrushRadius
+        we.checkMaxBrushRadius(size.getBlockY());
-                || size.getBlockZ() > config.maxBrushRadius) {
+        we.checkMaxBrushRadius(size.getBlockZ());
-            player.printError("Maximum allowed brush radius/height: "
-                    + config.maxBrushRadius);
-            return;
-        }
 
         BrushTool tool = session.getBrushTool(player.getItemInHand());
         tool.setBrush(new ClipboardBrush(clipboard, args.hasFlag('a')), "worldedit.brush.clipboard");
@@ -202,11 +186,7 @@ public class BrushCommands {
         LocalConfiguration config = we.getConfiguration();
 
         double radius = args.argsLength() > 0 ? args.getDouble(0) : 2;
-        if (radius > config.maxBrushRadius) {
+        we.checkMaxBrushRadius(radius);
-            player.printError("Maximum allowed brush radius: "
-                    + config.maxBrushRadius);
-            return;
-        }
 
         int iterations = args.argsLength() > 1 ? args.getInteger(1) : 4;
 
@@ -232,11 +212,7 @@ public class BrushCommands {
         LocalConfiguration config = we.getConfiguration();
 
         double radius = args.argsLength() > 1 ? args.getDouble(1) : 5;
-        if (radius > config.maxBrushRadius) {
+        we.checkMaxBrushRadius(radius);
-            player.printError("Maximum allowed brush radius: "
-                    + config.maxBrushRadius);
-            return;
-        }
 
         BrushTool tool = session.getBrushTool(player.getItemInHand());
         Pattern fill = new SingleBlockPattern(new BaseBlock(0));
@@ -268,11 +244,7 @@ public class BrushCommands {
         LocalConfiguration config = we.getConfiguration();
 
         double radius = args.argsLength() > 0 ? args.getDouble(0) : 5;
-        if (radius > config.maxBrushRadius) {
+        we.checkMaxBrushRadius(radius);
-            player.printError("Maximum allowed brush radius: "
-                    + config.maxBrushRadius);
-            return;
-        }
 
         BrushTool tool = session.getBrushTool(player.getItemInHand());
         tool.setSize(radius);

src/main/java/com/sk89q/worldedit/commands/ToolUtilCommands.java

@@ -152,11 +152,7 @@ public class ToolUtilCommands {
         LocalConfiguration config = we.getConfiguration();
 
         int radius = args.getInteger(0);
-        if (radius > config.maxBrushRadius) {
+        we.checkMaxBrushRadius(radius);
-            player.printError("Maximum allowed brush radius: "
-                    + config.maxBrushRadius);
-            return;
-        }
 
         session.getBrushTool(player.getItemInHand()).setSize(radius);
         player.print("Brush size set.");