Properly validate blocks in particle api

CraftBukkit-Patches/0039-Particle-API.patch

@@ -1,4 +1,4 @@
-From b23f908193514fa253e4c41dc3db750f66f2f7ec Mon Sep 17 00:00:00 2001
+From 922b5a63c71b56026841350a392f429942414d0b Mon Sep 17 00:00:00 2001
 From: md_5 <md_5@live.com.au>
 Date: Sun, 2 Jun 2013 16:14:30 +1000
 Subject: [PATCH] Particle API
@@ -43,7 +43,7 @@ index 7de0de5..7eca388 100644
              datavalue = 0;
          }
 diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
-index 7601fb5..6d22e82 100644
+index 7601fb5..0faf5bf 100644
 --- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
 +++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
 @@ -765,31 +765,21 @@ public class CraftWorld implements World {
@@ -55,7 +55,7 @@ index 7601fb5..6d22e82 100644
 -        playEffect(loc, effect, datavalue, radius);
 +        if (data != null && data.getClass().equals(org.bukkit.material.MaterialData.class)) {
 +            org.bukkit.material.MaterialData materialData = (org.bukkit.material.MaterialData) data;
-+            Validate.isTrue(!materialData.getItemType().isBlock(), "Material must be block");
++            Validate.isTrue(materialData.getItemType().isBlock(), "Material must be block");
 +            spigot().playEffect(loc, effect, materialData.getItemType().getId(), materialData.getData(), 0, 0, 0, 1, 1, radius);
 +        } else {
 +            int datavalue = data == null ? 0 : CraftEffect.getDataValue(effect, data);
@@ -152,7 +152,7 @@ index 7601fb5..6d22e82 100644
  
      public Spigot spigot()
 diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
-index aa49c6c..9da9863 100644
+index e242f7d..4bae056 100644
 --- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
 +++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
 @@ -277,13 +277,11 @@ public class CraftPlayer extends CraftHumanEntity implements Player {