init

Main.java

-import javafx.animation.KeyFrame;
-import javafx.animation.Timeline;
-import javafx.application.Application;
-import javafx.scene.Scene;
-import javafx.stage.Stage;
-import javafx.util.Duration;
-import java.util.HashSet;
-
-public class Main extends Application {
-    public static final double WIDTH = 1600;
-    public static final double HEIGHT = 800;
-    public static final int FRAMES_PER_SECOND = 60;
-    private static final int MILLISECOND_DELAY = 1000 / FRAMES_PER_SECOND;
-    private static final double SECOND_DELAY = 1.0 / FRAMES_PER_SECOND;
-    private HashSet<String> currentlyActiveKeys = new HashSet<>();
-
-    private App app;
-
-    @Override
-    public void start(Stage primaryStage) throws Exception {
-        primaryStage.setTitle("JavaFX canvas");
-
-        app = new App(primaryStage);
-
-        // timeline and fps
-        KeyFrame frame = new KeyFrame(Duration.millis(MILLISECOND_DELAY), e -> {
-            app.update(SECOND_DELAY);
-        });
-        Timeline animation = new Timeline();
-        animation.setCycleCount(Timeline.INDEFINITE);
-        animation.getKeyFrames().add(frame);
-        animation.play();
-
-        // Listeners
-        keyListener(app.getScene());
-    }
-
-    public void keyListener(Scene scene) {
-        scene.setOnKeyPressed(event -> {
-            String codeString = event.getCode().toString();
-            if (!currentlyActiveKeys.contains(codeString)) {
-                currentlyActiveKeys.add(codeString);
-                System.out.println(currentlyActiveKeys);
-                app.update(currentlyActiveKeys);
-            }
-        });
-        scene.setOnKeyReleased(event -> {
-            currentlyActiveKeys.remove(event.getCode().toString());
-            app.update(currentlyActiveKeys);
-        });
-    }
-
-    public static void main(String[] args) {
-        launch(args);
-    }
-
-}
+import javafx.animation.KeyFrame;
+import javafx.animation.Timeline;
+import javafx.application.Application;
+import javafx.scene.Scene;
+import javafx.stage.Stage;
+import javafx.util.Duration;
+import java.util.HashSet;
+
+public class Main extends Application {
+    public static final double WIDTH = 1600;
+    public static final double HEIGHT = 800;
+    public static final int FRAMES_PER_SECOND = 60;
+    private static final int MILLISECOND_DELAY = 1000 / FRAMES_PER_SECOND;
+    private static final double SECOND_DELAY = 1.0 / FRAMES_PER_SECOND;
+    private HashSet<String> currentlyActiveKeys = new HashSet<>();
+
+    private App app;
+
+    @Override
+    public void start(Stage primaryStage) throws Exception {
+        primaryStage.setTitle("JavaFX canvas");
+
+        app = new App(primaryStage);
+
+        // timeline and fps
+        KeyFrame frame = new KeyFrame(Duration.millis(MILLISECOND_DELAY), e -> {
+            app.update(SECOND_DELAY);
+        });
+        Timeline animation = new Timeline();
+        animation.setCycleCount(Timeline.INDEFINITE);
+        animation.getKeyFrames().add(frame);
+        animation.play();
+
+        // Listeners
+        keyListener(app.getScene());
+    }
+
+    public void keyListener(Scene scene) {
+        scene.setOnKeyPressed(event -> {
+            String codeString = event.getCode().toString();
+            if (!currentlyActiveKeys.contains(codeString)) {
+                currentlyActiveKeys.add(codeString);
+                System.out.println(currentlyActiveKeys);
+                app.update(currentlyActiveKeys);
+            }
+        });
+        scene.setOnKeyReleased(event -> {
+            currentlyActiveKeys.remove(event.getCode().toString());
+            app.update(currentlyActiveKeys);
+        });
+    }
+
+    public static void main(String[] args) {
+        launch(args);
+    }
+
+}