Added CloudParticle

Fixed wrong particle when put a wet sponge on nether

src/main/java/cn/nukkit/block/BlockSponge.java

@@ -5,6 +5,7 @@
 import cn.nukkit.level.GlobalBlockPalette;
 import cn.nukkit.level.Level;
 import cn.nukkit.level.Sound;
+import cn.nukkit.level.particle.CloudParticle;
 import cn.nukkit.level.particle.SmokeParticle;
 import cn.nukkit.math.BlockFace;
 import cn.nukkit.network.protocol.LevelEventPacket;
@@ -71,8 +72,8 @@ public boolean place(Item item, Block block, Block target, BlockFace face, doubl
 
                 for (int i = 0; i < 8; ++i) {
                     this.getLevel().addParticle(
-                            //TODO: Use correct smoke particle
-                            new SmokeParticle(block.getLocation().add(Math.random(), 1, Math.random())));
+                            new CloudParticle(block.getLocation().add(Math.random(), 1, Math.random()))
+                    );
                 }
             } else if (this.getDamage() == DRY && performWaterAbsorb(block)) {
                 level.setBlock(block, Block.get(BlockID.SPONGE, WET));

src/main/java/cn/nukkit/level/particle/CloudParticle.java

@@ -0,0 +1,10 @@
+package cn.nukkit.level.particle;
+
+import cn.nukkit.math.Vector3;
+
+public class CloudParticle extends GenericParticle {
+    public CloudParticle(Vector3 pos) {
+        this(pos, 0);
+    }
+    public CloudParticle(Vector3 pos, int scale) { super(pos, Particle.TYPE_EVAPORATION, scale); }
+}