Added freebuild / Power system fix / Net packet pool fix / Crash fixes

core/src/io/anuke/mindustry/entities/Player.java

@@ -610,7 +610,7 @@ public class Player extends Unit implements BuilderTrait, CarryTrait, ShooterTra
 				if (target == null) {
 					isShooting = false;
 					target = Units.getClosestTarget(team, x, y, inventory.getAmmoRange());
-				} else {
+				} else if(target.isValid()){
 					//rotate toward and shoot the target
 					rotation = Mathf.slerpDelta(rotation, angleTo(target), 0.2f);
 
@@ -697,12 +697,18 @@ public class Player extends Unit implements BuilderTrait, CarryTrait, ShooterTra
 	public void readSave(DataInput stream) throws IOException {
 		boolean local = stream.readBoolean();
 
-		if(local){
+		if(local && !headless){
 			byte mechid = stream.readByte();
 			int index = stream.readByte();
 			players[index].readSaveSuper(stream);
 			players[index].mech = Upgrade.getByID(mechid);
 			players[index].dead = false;
+		}else if(local){
+			byte mechid = stream.readByte();
+			stream.readByte();
+			readSaveSuper(stream);
+			mech = Upgrade.getByID(mechid);
+			dead = false;
 		}
 	}
 

core/src/io/anuke/mindustry/entities/effect/Fire.java

@@ -43,7 +43,7 @@ public class Fire extends TimedEntity implements SaveTrait, SyncTrait, Poolable
 
     /**Start a fire on the tile. If there already is a file there, refreshes its lifetime.*/
     public static void create(Tile tile){
-        if(Net.client()) return; //not clientside.
+        if(Net.client() || tile == null) return; //not clientside.
 
         Fire fire = map.get(tile.packedPosition());
 
@@ -62,7 +62,7 @@ public class Fire extends TimedEntity implements SaveTrait, SyncTrait, Poolable
 
     /**Attempts to extinguish a fire by shortening its life. If there is no fire here, does nothing.*/
     public static void extinguish(Tile tile, float intensity) {
-        if (map.containsKey(tile.packedPosition())) {
+        if (tile != null && map.containsKey(tile.packedPosition())) {
             map.get(tile.packedPosition()).time += intensity * Timers.delta();
         }
     }

core/src/io/anuke/mindustry/entities/effect/ItemDrop.java

@@ -69,6 +69,7 @@ public class ItemDrop extends SolidEntity implements SaveTrait, SyncTrait, DrawT
             Effects.effect(UnitFx.pickup, drop);
         }
         itemGroup.removeByID(itemid);
+        netClient.addRemovedEntity(itemid);
     }
 
     /**Internal use only!*/