Crash fixes

core/src/io/anuke/mindustry/core/Control.java

@@ -272,7 +272,7 @@ public class Control extends Module{
 
         for(int i = 0; i < Recipe.all().size; i++){
             Recipe recipe = Recipe.all().get(i);
-            if(!recipe.debugOnly && entity.items.has(recipe.requirements, 1.4f)){
+            if(!recipe.debugOnly && recipe.requirements != null && entity.items.has(recipe.requirements, 1.4f)){
                 if(control.database().unlockContent(recipe)){
                     ui.hudfrag.showUnlock(recipe);
                 }

core/src/io/anuke/mindustry/core/NetClient.java

@@ -217,7 +217,7 @@ public class NetClient extends Module{
                 int totalChunks = Mathf.ceil((float) totalLength / NetServer.maxSnapshotSize);
 
                 //reset status when a new snapshot sending begins
-                if(netClient.currentSnapshotID != snapshotID){
+                if(netClient.currentSnapshotID != snapshotID || netClient.recievedChunks == null){
                     netClient.currentSnapshotID = snapshotID;
                     netClient.currentSnapshot = new byte[totalLength];
                     netClient.recievedChunkCounter = 0;

core/src/io/anuke/mindustry/ui/fragments/HudFragment.java

@@ -146,7 +146,8 @@ public class HudFragment extends Fragment{
             });
 
             t.top().visible(() -> {
-                if(state.is(State.menu) ||  state.teams.get(players[0].getTeam()).cores.size == 0){
+                if(state.is(State.menu) || state.teams.get(players[0].getTeam()).cores.size == 0 ||
+                state.teams.get(players[0].getTeam()).cores.first().entity == null){
                     coreAttackTime = 0f;
                     return false;
                 }

core/src/io/anuke/mindustry/world/blocks/BuildBlock.java

@@ -53,6 +53,7 @@ public class BuildBlock extends Block{
 
     @Remote(called = Loc.server)
     public static void onConstructFinish(Tile tile, Block block, int builderID, byte rotation, Team team){
+        if(tile == null) return;
         tile.setRotation(rotation);
         world.setBlock(tile, block, team);
         Effects.effect(Fx.placeBlock, tile.drawx(), tile.drawy(), block.size);

core/src/io/anuke/mindustry/world/blocks/defense/turrets/ItemTurret.java

@@ -61,6 +61,7 @@ public class ItemTurret extends CooledTurret{
     @Override
     public void handleItem(Item item, Tile tile, Tile source){
         TurretEntity entity = tile.entity();
+        if(entity == null) return;
 
         AmmoType type = ammoMap.get(item);
         entity.totalAmmo += type.quantityMultiplier;

core/src/io/anuke/mindustry/world/blocks/distribution/MassDriver.java

@@ -264,7 +264,7 @@ public class MassDriver extends Block{
         //whether this mass driver is waiting for a bullet to hit it and deliver items
         public boolean isRecieving;
         //whether this driver just recieved some items and is now unloading
-        public boolean isUnloading;
+        public boolean isUnloading = true;
 
         public float reload = 0f;
 

core/src/io/anuke/mindustry/world/blocks/storage/CoreBlock.java

@@ -79,7 +79,7 @@ public class CoreBlock extends StorageBlock{
     @Remote(called = Loc.server)
     public static void setCoreSolid(Tile tile, boolean solid){
         CoreEntity entity = tile.entity();
-        entity.solid = solid;
+        if(entity != null) entity.solid = solid;
     }
 
     @Override

core/src/io/anuke/mindustry/world/consumers/ConsumePower.java

@@ -27,11 +27,13 @@ public class ConsumePower extends Consume{
 
     @Override
     public void update(Block block, TileEntity entity){
+        if(entity.power == null) return;
         entity.power.amount -= Math.min(use(block), entity.power.amount);
     }
 
     @Override
     public boolean valid(Block block, TileEntity entity){
+        if(entity.power == null) return false;
         return entity.power.amount >= use(block);
     }