Add build ui;

Fixed naming mistake in MainController

src/main/java/com/yes/yes/MainController.java

@@ -1,8 +1,6 @@
 package com.yes.yes;
 
-import com.yes.yes.managers.GameManager;
-import com.yes.yes.managers.PlayerManager;
-import com.yes.yes.utils.Coordinate;
+import com.yes.yes.managers.*;
 import javafx.application.Platform;
 import javafx.fxml.FXML;
 import javafx.scene.layout.VBox;
@@ -14,11 +12,14 @@ public class MainController {
 
     public void initialize() {
         GameManager gameManager = new GameManager(root);
-        gameManager.setup();
+        gameManager.initialize();
 
         Platform.runLater(() -> {
-            PlayerManager playerManager = new PlayerManager(gameManager.getWorld());
-            playerManager.setup();
+            UiManager uiManager = new UiManager(root);
+            uiManager.initialize();
+
+            PlayerManager playerManager = new PlayerManager(gameManager.getWorld(), uiManager.getBuildBox());
+            playerManager.initialize();
         });
 
     }

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

@@ -13,6 +13,10 @@ public class UiManager {
 
     public void initialize() {
         buildBox = new BuildBox();
-        root.getChildren().add(0,buildBox);
+        root.getChildren().add(0, buildBox);
+    }
+
+    public BuildBox getBuildBox() {
+        return buildBox;
     }
 }

src/main/java/com/yes/yes/ui/BuildBox.java

@@ -1,11 +1,22 @@
 package com.yes.yes.ui;
 
+import com.yes.yes.utils.EntityRegistry;
 import javafx.application.Platform;
 import javafx.scene.control.ScrollPane;
 import javafx.scene.layout.HBox;
 
-public class BuildBox
-        extends javafx.scene.Group {
+import java.util.function.Function;
+
+public class BuildBox extends javafx.scene.Group {
+    String selectedEntity;
+
+
+    Function<String, Void> changeItem = i -> {
+        System.out.println(i);
+        this.selectedEntity = i;
+        return null;
+    };
+
     public BuildBox() {
         ScrollPane pane = new ScrollPane();
         HBox hbox = new HBox();
@@ -17,14 +28,14 @@ public class BuildBox
 
         this.getChildren().add(pane);
 
-        Platform.runLater(() ->
-                {
-                    pane.prefWidthProperty()
-                            .bind(this.getScene()
-                                    .getWindow()
-                                    .widthProperty());
-                }
-        );
+        this.setViewOrder(-1);
+
+        Platform.runLater(() -> pane.prefWidthProperty().bind(this.getScene().getWindow().widthProperty()));
+
+        EntityRegistry.getKeys().forEach(e -> hbox.getChildren().add(new BuildItem(e, changeItem)));
     }
 
+    public String getSelectedEntity() {
+        return selectedEntity;
+    }
 }

src/main/java/com/yes/yes/ui/BuildItem.java

@@ -0,0 +1,38 @@
+package com.yes.yes.ui;
+
+import com.yes.yes.utils.EntityRegistry;
+import com.yes.yes.world.Chunk;
+import javafx.scene.Node;
+import javafx.scene.control.Button;
+
+import java.util.function.Function;
+
+public class BuildItem extends javafx.scene.layout.StackPane {
+    String display_name;
+    String name;
+    Class<?> entity;
+
+    public BuildItem(String name, Function<String,Void> onClick) {
+        super();
+
+        this.display_name = EntityRegistry.getEntity(name).getDisplayName();
+        this.entity = EntityRegistry.getEntity(name).getEntity();
+        this.name = name;
+
+        this.prefWidth(Chunk.ENTITY_SIZE);
+        this.prefHeight(Chunk.ENTITY_SIZE+10);
+
+        try {
+            this.getChildren().add((Node)entity.getConstructor().newInstance());
+        } catch (Exception ignored){}
+
+        Button button = new Button();
+
+        button.setStyle("-fx-background-color: null; -fx-border-color: null");
+        button.setPrefSize(Chunk.ENTITY_SIZE,Chunk.ENTITY_SIZE);
+        button.setMinSize(Chunk.ENTITY_SIZE,Chunk.ENTITY_SIZE);
+        button.setOnAction((e)-> onClick.apply(this.name));
+
+        this.getChildren().add(button);
+    }
+}