Add splitter and fix a few bugs

src/main/java/com/yes/yes/behaviours/ConveyorBehaviour.java

@@ -8,11 +8,10 @@ public class ConveyorBehaviour extends Component {
     private final String receiveDataKey;
     private final String offerDataKey;
     private final int delay;
-    int count = 0;
-
+    int delayCount = 0;
     boolean isConveyed = false;
 
-    public ConveyorBehaviour(Entity entity, BlockContainer blockContainer, String receiveDataKey, String offerDataKey, int delay) {
+    public ConveyorBehaviour(Entity entity, BlockContainer blockContainer, int delay, String receiveDataKey, String offerDataKey) {
         super(entity, blockContainer);
         this.receiveDataKey = receiveDataKey;
         this.offerDataKey = offerDataKey;
@@ -26,15 +25,15 @@ public class ConveyorBehaviour extends Component {
 
     @Override
     public void update() {
-        if (count > delay) {
-            count = 0;
+        if (delayCount > delay) {
+            delayCount = 0;
 
             if (parent.getData(offerDataKey) != null) return;
 
             parent.setData(offerDataKey, parent.getData(receiveDataKey));
             isConveyed = true;
         } else if (parent.getData(receiveDataKey) != null && !isConveyed) {
-            count++;
+            delayCount++;
         }
 
         if (isConveyed && parent.getData(offerDataKey) == null) {

src/main/java/com/yes/yes/behaviours/ItemBehaviour.java

@@ -4,14 +4,19 @@ import com.yes.yes.utils.BlockContainer;
 import com.yes.yes.utils.Component;
 import com.yes.yes.utils.Entity;
 import com.yes.yes.utils.Item;
+import com.yes.yes.world.Chunk;
 import javafx.application.Platform;
 import javafx.geometry.Pos;
+import javafx.scene.layout.StackPane;
 import javafx.scene.layout.VBox;
+import javafx.scene.paint.Color;
+import javafx.scene.shape.Rectangle;
 import javafx.scene.transform.Scale;
+import javafx.scene.transform.Translate;
 
 public class ItemBehaviour extends Component {
 
-    private VBox itemGroup;
+    private StackPane itemGroup;
     private final String dataKey;
 
     public ItemBehaviour(Entity entity, BlockContainer blockContainer, String dataKey) {
@@ -25,6 +30,11 @@ public class ItemBehaviour extends Component {
             this.itemGroup.getChildren().clear();
             if (item != null)
                 this.itemGroup.getChildren().add(item);
+            else {
+                Rectangle alignmentRectangle = new Rectangle(Chunk.ENTITY_SIZE, Chunk.ENTITY_SIZE);
+                alignmentRectangle.setFill(Color.rgb(0,0,0,0));
+                this.itemGroup.getChildren().add(alignmentRectangle);
+            }
         });
         //System.out.println("Finished item update");
     }
@@ -33,14 +43,21 @@ public class ItemBehaviour extends Component {
     public void initialize() {
         parent.addListener(dataKey + "Changed", this, this::itemChanged);
 
-        itemGroup = new VBox();
+        itemGroup = new StackPane();
         itemGroup.setAlignment(Pos.CENTER);
-        //itemGroup.setRotate(-this.parent.getRotate());
+        itemGroup.setRotate(-this.parent.getRotate());
 
         this.parent.getChildren().add(itemGroup);
 
         Scale s = new Scale(0.7, 0.7);
         itemGroup.getTransforms().add(s);
+
+        Translate translate = new Translate(Chunk.ENTITY_SIZE/4,Chunk.ENTITY_SIZE/4);
+        itemGroup.getTransforms().add(translate);
+
+        Rectangle alignmentRectangle = new Rectangle(Chunk.ENTITY_SIZE, Chunk.ENTITY_SIZE);
+        alignmentRectangle.setFill(Color.rgb(0,0,0,0));
+        this.itemGroup.getChildren().add(alignmentRectangle);
     }
 
     @Override

src/main/java/com/yes/yes/behaviours/OfferBehaviour.java

@@ -1,6 +1,7 @@
 package com.yes.yes.behaviours;
 
 import com.yes.yes.utils.*;
+import javafx.util.Pair;
 
 public class OfferBehaviour extends Component {
 
@@ -58,7 +59,7 @@ public class OfferBehaviour extends Component {
         Item item = this.parent.getData(dataKey);
         if (item == null) return;
 
-        this.receiver.trigger("offerItem", item);
+        this.receiver.trigger("offerItem", new Pair(parent, item));
     }
 
     @Override

src/main/java/com/yes/yes/behaviours/ReceiveBehaviour.java

@@ -1,6 +1,7 @@
 package com.yes.yes.behaviours;
 
 import com.yes.yes.utils.*;
+import javafx.util.Pair;
 
 public class ReceiveBehaviour extends Component {
 
@@ -38,18 +39,17 @@ public class ReceiveBehaviour extends Component {
         this.parent.addListener("placed", this, this::placed);
     }
 
-    void receive(Item item) {
-        if (offerer == null) return;
+    void receive(Pair<Entity,Item> pair) {
+        if (offerer == null || offerer != pair.getKey()) return;
 
-        if (this.parent.getData(dataKey) == item)
+        if (this.parent.getData(dataKey) == pair.getValue())
             this.offerer.trigger("itemAccepted", this.parent);
 
         if (this.parent.getData(dataKey) != null) return;
 
-        this.parent.setData(dataKey, item);
-        this.parent.trigger(dataKey + "Changed", item);
+        this.parent.setData(dataKey, pair.getValue());
+        this.parent.trigger(dataKey + "Changed", pair.getValue());
         this.offerer.trigger("itemAccepted", this.parent);
-
     }
 
     @Override

src/main/java/com/yes/yes/behaviours/SplitBehaviour.java

@@ -0,0 +1,54 @@
+package com.yes.yes.behaviours;
+
+import com.yes.yes.utils.BlockContainer;
+import com.yes.yes.utils.Component;
+import com.yes.yes.utils.Entity;
+
+public class SplitBehaviour extends Component {
+
+    private final int delay;
+    private final String receiveDataKey;
+    private final String[] offerDataKeys;
+    private int delayCount = 0;
+    private int offerDataKeyIndex = 0;
+    private String offerDataKey;
+
+    public SplitBehaviour(Entity entity, BlockContainer blockContainer, int delay, String receiveDataKey, String... offerDataKeys) {
+        super(entity, blockContainer);
+        this.delay = delay;
+        this.receiveDataKey = receiveDataKey;
+        this.offerDataKeys = offerDataKeys;
+    }
+
+    @Override
+    public void initialize() {
+
+    }
+
+    @Override
+    public void update() {
+        if (delayCount > delay) {
+
+
+            offerDataKeyIndex++;
+            if (offerDataKeyIndex >= offerDataKeys.length)
+                offerDataKeyIndex = 0;
+
+            offerDataKey = offerDataKeys[offerDataKeyIndex];
+
+            if (parent.getData(offerDataKey) != null) return;
+
+            parent.setData(offerDataKey, parent.getData(receiveDataKey));
+            parent.setData(receiveDataKey, null);
+
+            delayCount = 0;
+        } else if (parent.getData(receiveDataKey) != null) {
+            delayCount++;
+        }
+    }
+
+    @Override
+    public void destroy() {
+
+    }
+}

src/main/java/com/yes/yes/entities/machines/ConveyorBelt.java

@@ -29,6 +29,6 @@ public class ConveyorBelt extends Entity {
         this.addBehaviour(new ReceiveBehaviour(this, blockContainer, Direction.LEFT, "ReceivedItem"));
         this.addBehaviour(new ReceiveBehaviour(this, blockContainer, Direction.RIGHT, "ReceivedItem"));
         this.addBehaviour(new OfferBehaviour(this, blockContainer, Direction.UP, "OfferItem"));
-        this.addBehaviour(new ConveyorBehaviour(this, blockContainer, "ReceivedItem", "OfferItem", 1));
+        this.addBehaviour(new ConveyorBehaviour(this, blockContainer, 1, "ReceivedItem", "OfferItem"));
     }
 }

src/main/java/com/yes/yes/entities/machines/Splitter.java

@@ -0,0 +1,40 @@
+package com.yes.yes.entities.machines;
+
+import com.yes.yes.behaviours.OfferBehaviour;
+import com.yes.yes.behaviours.PlaceBehaviour;
+import com.yes.yes.behaviours.ReceiveBehaviour;
+import com.yes.yes.behaviours.SplitBehaviour;
+import com.yes.yes.utils.BlockContainer;
+import com.yes.yes.utils.Direction;
+import com.yes.yes.utils.Entity;
+import com.yes.yes.world.Chunk;
+import javafx.scene.paint.Color;
+import javafx.scene.shape.Polygon;
+
+public class Splitter extends Entity {
+    public Splitter() {
+        super();
+        Polygon p1 = new Polygon();
+        p1.getPoints().addAll(
+                0.0, Chunk.ENTITY_SIZE / 2d,
+                Chunk.ENTITY_SIZE / 2d, 0.0,
+                (double) Chunk.ENTITY_SIZE, Chunk.ENTITY_SIZE / 2d,
+                Chunk.ENTITY_SIZE / 4d * 3, (double) Chunk.ENTITY_SIZE,
+                Chunk.ENTITY_SIZE / 2d, Chunk.ENTITY_SIZE / 2d,
+                Chunk.ENTITY_SIZE / 4d, (double) Chunk.ENTITY_SIZE
+        );
+        p1.setFill(new Color(0, 0, 0, 1));
+
+        this.getChildren().addAll(p1);
+    }
+
+    public Splitter(BlockContainer blockContainer) {
+        this();
+        this.addBehaviour(new PlaceBehaviour(this, blockContainer));
+        this.addBehaviour(new SplitBehaviour(this, blockContainer, 1, "ReceivedItem", "OfferItemLeft", "OfferItemRight", "OfferItemUp"));
+        this.addBehaviour(new ReceiveBehaviour(this, blockContainer, Direction.DOWN, "ReceivedItem"));
+        this.addBehaviour(new OfferBehaviour(this, blockContainer, Direction.LEFT, "OfferItemLeft"));
+        this.addBehaviour(new OfferBehaviour(this, blockContainer, Direction.RIGHT, "OfferItemRight"));
+        this.addBehaviour(new OfferBehaviour(this, blockContainer, Direction.UP, "OfferItemUp"));
+    }
+}

src/main/java/com/yes/yes/managers/GameManager.java

@@ -36,6 +36,7 @@ public class GameManager {
             EntityRegistry.register(new RegistryEntry("conveyorBelt", "Conveyor Belt", ConveyorBelt.class));
             EntityRegistry.register(new RegistryEntry("hub", "Central Hub", HubDisplay.class));
             EntityRegistry.register(new RegistryEntry("hubAcceptor", "Central Hub Acceptor", HubAcceptor.class));
+            EntityRegistry.register(new RegistryEntry("splitter", "Splitter", Splitter.class));
         } catch (AlreadyExistsException e) {
             e.printStackTrace();
         }