- Add rotator

- Fix `Entity.rotate` method

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

@@ -1,5 +1,7 @@
 package com.yes.yes.behaviours;
 
+import com.yes.yes.entities.parts.EmptyPart;
+import com.yes.yes.entities.parts.Square;
 import com.yes.yes.utils.*;
 import com.yes.yes.world.Chunk;
 import javafx.geometry.Pos;
@@ -25,8 +27,20 @@ public class ItemBehaviour extends Component {
 
                 this.itemGroup.getChildren().clear();
 
-                if (item != null)
+                if (item != null) {
-                    this.itemGroup.getChildren().add(item.clone());
+                    Item displayItem = item.clone();
+
+                    for (int layer = 0; layer < 4; layer++) {
+                        for (int quarter = 0; quarter < 4; quarter++) {
+                            if(displayItem.getPart(layer,quarter) == null)
+                            {
+                                displayItem.setPart(layer, quarter, new EmptyPart());
+                            }
+                        }
+                    }
+
+                    this.itemGroup.getChildren().add(displayItem);
+                }
                 else {
                     Rectangle alignmentRectangle = new Rectangle(Chunk.ENTITY_SIZE, Chunk.ENTITY_SIZE);
                     alignmentRectangle.setFill(Color.rgb(0, 0, 0, 0));

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

@@ -1,4 +1,50 @@
 package com.yes.yes.behaviours;
 
-public class RotateBehaviour {
+import com.yes.yes.utils.*;
+
+public class RotateBehaviour extends Component {
+    private final Coordinate rotationDirection;
+    private final String receiveDataKey;
+    private final String offerDataKey;
+    private final int processingDuration;
+    private int progress = 0;
+
+    public RotateBehaviour(Entity entity, BlockContainer blockContainer, Coordinate rotationDirection, String receiveDataKey, String offerDataKey, int processingDuration) {
+        super(entity, blockContainer);
+        this.rotationDirection = rotationDirection;
+        this.receiveDataKey = receiveDataKey;
+        this.offerDataKey = offerDataKey;
+        this.processingDuration = processingDuration;
+    }
+
+    @Override
+    public void initialize() {
+
+    }
+
+    @Override
+    public void update() {
+        if (progress > processingDuration) {
+            if (parent.getData(offerDataKey) != null) return;
+
+            Item item = parent.getData(receiveDataKey);
+            if (rotationDirection.equals(Direction.RIGHT)) {
+                item.rotate(1);
+            } else if (rotationDirection.equals(Direction.LEFT)) {
+                item.rotate(3);
+            }
+
+            parent.setData(offerDataKey, item);
+            parent.setData(receiveDataKey, null);
+
+            progress = 0;
+        } else if (parent.getData(receiveDataKey) != null) {
+            progress++;
+        }
+    }
+
+    @Override
+    public void destroy() {
+
+    }
 }

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

@@ -27,8 +27,6 @@ public class SplitBehaviour extends Component {
     @Override
     public void update() {
         if (delayCount > delay) {
-
-
             offerDataKeyIndex++;
             if (offerDataKeyIndex >= offerDataKeys.length)
                 offerDataKeyIndex = 0;

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

@@ -0,0 +1,38 @@
+package com.yes.yes.entities.machines;
+
+import com.yes.yes.behaviours.*;
+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.Circle;
+import javafx.scene.shape.Polygon;
+
+public class Rotator extends Entity {
+    public Rotator() {
+        super();
+        Circle c = new Circle(Chunk.ENTITY_SIZE / 2d);
+        c.setFill(Color.BLACK);
+        c.setCenterX(Chunk.ENTITY_SIZE / 2d);
+        c.setCenterY(Chunk.ENTITY_SIZE / 2d);
+
+        Polygon p = new Polygon();
+        p.getPoints().addAll(
+                Chunk.ENTITY_SIZE / 2d, 0.0,
+                Chunk.ENTITY_SIZE / 4d, (double) Chunk.ENTITY_SIZE,
+                (double) Chunk.ENTITY_SIZE / 4d * 3, (double) Chunk.ENTITY_SIZE);
+        p.setFill(new Color(1, 1, 0, 0.5));
+
+        this.getChildren().addAll(p);
+    }
+
+    @SuppressWarnings("unused") // Called dynamically
+    public Rotator(BlockContainer blockContainer) {
+        this();
+        this.addBehaviour(new PlaceBehaviour(this, blockContainer));
+        this.addBehaviour(new RotateBehaviour(this, blockContainer, Direction.RIGHT, "ReceivedItem", "OfferItem", 1));
+        this.addBehaviour(new ReceiveBehaviour(this, blockContainer, Direction.DOWN, "ReceivedItem"));
+        this.addBehaviour(new OfferBehaviour(this, blockContainer, Direction.UP, "OfferItem"));
+    }
+}

src/main/java/com/yes/yes/entities/parts/EmptyPart.java

@@ -0,0 +1,17 @@
+package com.yes.yes.entities.parts;
+
+import javafx.scene.paint.Color;
+import javafx.scene.shape.Rectangle;
+
+public class EmptyPart extends com.yes.yes.utils.Part {
+
+    public EmptyPart() {
+        Rectangle rect = new Rectangle(23, 23);
+        rect.setFill(new Color(0,0,0,0));
+        this.getChildren().add(rect);
+    }
+
+    @Override
+    protected void onColorChanged(Color color) {
+    }
+}

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

@@ -38,6 +38,7 @@ public class GameManager {
             EntityRegistry.register(new RegistryEntry("splitter", "Splitter", Splitter.class));
             EntityRegistry.register(new RegistryEntry("cutter", "Cutter", Cutter.class));
             EntityRegistry.register(new RegistryEntry("stacker", "Stacker", Stacker.class));
+            EntityRegistry.register(new RegistryEntry("rotator", "Rotator", Rotator.class));
         } catch (AlreadyExistsException e) {
             e.printStackTrace();
         }

src/main/java/com/yes/yes/utils/Item.java

@@ -36,23 +36,26 @@ public class Item extends javafx.scene.Group implements Cloneable {
     }
 
     public void rotate(int quarters) {
-        quarters %= 4;
+        quarters = (quarters + 2) % 4;
 
         for (int i = 0; i < quarters; i++) {
             for (int l = 0; l < 4; l++) {
                 Part[] rot = new Part[4];
 
-                rot[0] = parts[l][2];
+                rot[0] = parts[l][1];
-                rot[1] = parts[l][0];
+                rot[1] = parts[l][2];
                 rot[2] = parts[l][3];
-                rot[3] = parts[l][1];
+                rot[3] = parts[l][0];
 
                 parts[l] = rot;
             }
         }
         for (int i = 0; i < 4; i++) {
             for (int j = 0; j < 4; j++) {
-                parts[i][j].rotate(quarters);
+                Part part = parts[i][j];
+                if (part != null) {
+                    part.rotate(quarters);
+                }
             }
         }
     }