Implemented null-items for sorters and item sources

build.gradle

@@ -8,12 +8,11 @@ buildscript {
     }
     dependencies {
         classpath 'com.mobidevelop.robovm:robovm-gradle-plugin:2.3.0'
-        classpath "com.badlogicgames.gdx:gdx-tools:1.9.8"
+        classpath "com.badlogicgames.gdx:gdx-tools:1.9.9"
     }
 }
 
 allprojects {
-    apply plugin: "eclipse"
     apply plugin: "idea"
 
     version = 'release'

core/src/io/anuke/mindustry/content/blocks/DebugBlocks.java

@@ -92,8 +92,11 @@ public class DebugBlocks extends BlockList implements ContentList{
             @Override
             public void update(Tile tile){
                 SorterEntity entity = tile.entity();
+                if(entity.sortItem == null) return;
+
                 entity.items.set(entity.sortItem, 1);
                 tryDump(tile, entity.sortItem);
+                entity.items.set(entity.sortItem, 0);
             }
 
             @Override

core/src/io/anuke/mindustry/ui/dialogs/JoinDialog.java

@@ -156,7 +156,7 @@ public class JoinDialog extends FloatingDialog{
                 versionString = Bundles.get("text.server.outdated");
             }else if(host.version < Version.build && Version.build != -1){
                 versionString = Bundles.get("text.server.outdated") + "\n" +
-                        Bundles.format("text.server.version", host.version);
+                        Bundles.format("text.server.version", host.version, "");
             }else if(host.version > Version.build && Version.build != -1){
                 versionString = Bundles.get("text.server.outdated.client") + "\n" +
                         Bundles.format("text.server.version", host.version, "");

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

@@ -4,43 +4,32 @@ import com.badlogic.gdx.utils.Array;
 import io.anuke.mindustry.type.Item;
 import io.anuke.ucore.function.Consumer;
 import io.anuke.ucore.function.Supplier;
-import io.anuke.ucore.graphics.Draw;
 import io.anuke.ucore.scene.style.TextureRegionDrawable;
 import io.anuke.ucore.scene.ui.ButtonGroup;
 import io.anuke.ucore.scene.ui.ImageButton;
 import io.anuke.ucore.scene.ui.layout.Table;
 
-import static io.anuke.mindustry.Vars.*;
+import static io.anuke.mindustry.Vars.content;
+import static io.anuke.mindustry.Vars.control;
 
 public interface SelectionTrait{
 
     default void buildItemTable(Table table, Supplier<Item> holder, Consumer<Item> consumer){
-        buildItemTable(table, false, holder, consumer);
-    }
-
-    default void buildItemTable(Table table, boolean nullItem, Supplier<Item> holder, Consumer<Item> consumer){
 
         Array<Item> items = content.items();
 
         ButtonGroup<ImageButton> group = new ButtonGroup<>();
+        group.setMinCheckCount(0);
         Table cont = new Table();
         cont.defaults().size(38);
 
         int i = 0;
 
-        if(nullItem){
-            ImageButton button = cont.addImageButton("white", "clear-toggle", 24, () -> consumer.accept(null)).group(group).get();
-            button.getStyle().imageUp = new TextureRegionDrawable(Draw.region("icon-nullitem"));
-            button.setChecked(holder.get() == null);
-
-            i ++;
-        }
-
         for(Item item : items){
             if(!control.unlocks.isUnlocked(item)) continue;
 
-            ImageButton button = cont.addImageButton("white", "clear-toggle", 24, () -> consumer.accept(item))
+            ImageButton button = cont.addImageButton("white", "clear-toggle", 24, () -> {}).group(group).get();
-                    .group(group).get();
+            button.changed(() -> consumer.accept(button.isChecked() ? item : null));
             button.getStyle().imageUp = new TextureRegionDrawable(item.region);
             button.setChecked(holder.get() == item);
 

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

@@ -48,7 +48,9 @@ public class Sorter extends Block implements SelectionTrait{
     @Remote(targets = Loc.both, called = Loc.both, forward = true)
     public static void setSorterItem(Player player, Tile tile, Item item){
         SorterEntity entity = tile.entity();
-        if(entity != null) entity.sortItem = item;
+        if(entity != null){
+            entity.sortItem = item;
+        }
     }
 
     @Override
@@ -56,6 +58,7 @@ public class Sorter extends Block implements SelectionTrait{
         super.draw(tile);
 
         SorterEntity entity = tile.entity();
+        if(entity.sortItem == null) return;
 
         Draw.color(entity.sortItem.color);
         Draw.rect("blank", tile.worldx(), tile.worldy(), 4f, 4f);
@@ -130,16 +133,17 @@ public class Sorter extends Block implements SelectionTrait{
     }
 
     public static class SorterEntity extends TileEntity{
-        public Item sortItem = content.item(0);
+        public Item sortItem;
 
         @Override
         public void writeConfig(DataOutput stream) throws IOException{
-            stream.writeByte(sortItem.id);
+            stream.writeByte(sortItem == null ? -1 : sortItem.id);
         }
 
         @Override
         public void readConfig(DataInput stream) throws IOException{
-            sortItem = content.items().get(stream.readByte());
+            byte b = stream.readByte();
+            sortItem = b == -1 ? null : content.items().get(b);
         }
     }
 }

core/src/io/anuke/mindustry/world/blocks/power/PowerNode.java

@@ -67,7 +67,7 @@ public class PowerNode extends PowerBlock{
 
     @Remote(targets = Loc.both, called = Loc.server, forward = true)
     public static void unlinkPowerNodes(Player player, Tile tile, Tile other){
-        if(tile.entity.power == null) return;
+        if(tile.entity.power == null || other.entity == null || other.entity.power == null) return;
 
         TileEntity entity = tile.entity();
 

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

@@ -65,7 +65,7 @@ public class SortedUnloader extends Unloader implements SelectionTrait{
     @Override
     public void buildTable(Tile tile, Table table){
         SortedUnloaderEntity entity = tile.entity();
-        buildItemTable(table, true, () -> entity.sortItem, item -> Call.setSortedUnloaderItem(null, tile, item));
+        buildItemTable(table, () -> entity.sortItem, item -> Call.setSortedUnloaderItem(null, tile, item));
     }
 
     @Override

tools/build.gradle

@@ -3,7 +3,6 @@ apply plugin: "java"
 sourceCompatibility = 1.8
 sourceSets.main.java.srcDirs = [ "src/" ]
 
-
 import com.badlogic.gdx.graphics.Color
 import com.badlogic.gdx.tools.texturepacker.TexturePacker