More multiplayer setup, possible android support

core/src/io/anuke/mindustry/net/Net.java

@@ -1,6 +1,7 @@
 package io.anuke.mindustry.net;
 
 import com.badlogic.gdx.Gdx;
+import com.badlogic.gdx.utils.IntArray;
 import com.badlogic.gdx.utils.IntMap;
 import com.badlogic.gdx.utils.ObjectMap;
 import io.anuke.mindustry.net.Streamable.StreamBegin;
@@ -48,6 +49,11 @@ public class Net{
 		server = false;
 		active = false;
 	}
+
+	/**Returns a list of all connections IDs.*/
+	public static IntArray getConnections(){
+		return serverProvider.getConnections();
+	}
 	
 	/**Send an object to all connected clients, or to the server if this is a client.*/
 	public static void send(Object object, SendMode mode){
@@ -182,6 +188,8 @@ public class Net{
 		public void sendExcept(int id, Object object, SendMode mode);
 		/**Close the server connection.*/
 		public void close();
+		/**Return all connected users.*/
+		public IntArray getConnections();
 		/**Register classes to be sent.*/
 		public void register(Class<?>... types);
 	}

core/src/io/anuke/mindustry/net/Packets.java

@@ -96,6 +96,6 @@ public class Packets {
     }
 
     public static class BlockUpdatePacket{
-        public int health;
+        public int health, position;
     }
 }

core/src/io/anuke/mindustry/net/Registrator.java

@@ -29,6 +29,8 @@ public class Registrator {
                 PathPacket.class,
                 BulletPacket.class,
                 EnemyDeathPacket.class,
+                BlockUpdatePacket.class,
+                BlockDestroyPacket.class,
 
                 Class.class,
                 byte[].class,

core/src/io/anuke/mindustry/net/Syncable.java

@@ -1,9 +1,14 @@
 package io.anuke.mindustry.net;
 
 import com.badlogic.gdx.math.Vector2;
+import io.anuke.mindustry.Vars;
 import io.anuke.mindustry.entities.Player;
 import io.anuke.mindustry.entities.enemies.Enemy;
+import io.anuke.mindustry.graphics.Fx;
+import io.anuke.ucore.core.Effects;
+import io.anuke.ucore.core.Timers;
 import io.anuke.ucore.entities.Entity;
+import io.anuke.ucore.util.Angles;
 import io.anuke.ucore.util.Mathf;
 
 //TODO clean up this giant mess
@@ -36,6 +41,11 @@ public interface Syncable {
                     entity.set(i.target.x, i.target.y);
                 }
 
+                if(Vars.android && i.target.dst(entity.x, entity.y) > 2f && Timers.get(entity, "dashfx", 3)){
+                    Angles.translation(entity.angle + 180, 3f);
+                    Effects.effect(Fx.dashsmoke, entity.x + Angles.x(), entity.y + Angles.y());
+                }
+
                 entity.x = Mathf.lerpDelta(entity.x, i.target.x, 0.4f);
                 entity.y = Mathf.lerpDelta(entity.y, i.target.y, 0.4f);
                 entity.angle = Mathf.lerpAngDelta(entity.angle, i.targetrot, 0.6f);