Allow x, y, and z values to be transformed using the 3D depth effect

src/main/java/sh/ball/audio/effect/PerspectiveEffect.java

@@ -1,17 +1,27 @@
 package sh.ball.audio.effect;
 
+import org.luaj.vm2.LuaValue;
 import sh.ball.engine.Vector3;
+import sh.ball.parser.lua.LuaExecutor;
 import sh.ball.shapes.Vector2;
 
+import javax.xml.transform.Result;
+
 // 3D rotation effect
 public class PerspectiveEffect implements SettableEffect {
 
+  private final LuaExecutor executor;
+
   private double zPos = 1.0;
   private Vector3 baseRotation = new Vector3(Math.PI, Math.PI, 0);
   private Vector3 currentRotation = new Vector3();
   private double rotateSpeed = 0.0;
   private double effectScale = 1.0;
 
+  public PerspectiveEffect(LuaExecutor executor) {
+    this.executor = executor;
+  }
+
   @Override
   public Vector2 apply(int count, Vector2 vector) {
     currentRotation = currentRotation.add(baseRotation.scale(rotateSpeed));
@@ -19,10 +29,23 @@ public class PerspectiveEffect implements SettableEffect {
     Vector3 vertex = new Vector3(vector.x, vector.y, 0.0);
     vertex = vertex.rotate(baseRotation.add(currentRotation));
 
+    executor.setVariable("x", vertex.x);
+    executor.setVariable("y", vertex.y);
+    executor.setVariable("z", -zPos);
+    double x = vertex.x;
+    double y = vertex.y;
+    double z = -zPos;
+    try {
+      LuaValue result = executor.execute();
+      x = result.get(1).checkdouble();
+      y = result.get(2).checkdouble();
+      z = result.get(3).checkdouble();
+    } catch (Exception ignored) {}
+
     double focalLength = 1.0;
     return new Vector2(
-      (1 - effectScale) * vector.x + effectScale * (vertex.x * focalLength / (vertex.z - zPos)),
+      (1 - effectScale) * vector.x + effectScale * (x * focalLength / z),
-      (1 - effectScale) * vector.y + effectScale * (vertex.y * focalLength / (vertex.z - zPos))
+      (1 - effectScale) * vector.y + effectScale * (y * focalLength / z)
     );
   }
 

src/main/java/sh/ball/audio/engine/XtAudioEngine.java

@@ -1,6 +1,5 @@
 package sh.ball.audio.engine;
 
-import com.sun.javafx.PlatformUtil;
 import sh.ball.shapes.Vector2;
 import xt.audio.*;
 
@@ -237,13 +236,7 @@ public class XtAudioEngine implements AudioEngine {
 
   // connects to an XtAudio XtService in order of lowest latency to highest latency
   private XtService getService(XtPlatform platform) {
-    XtService service = null;
+    XtService service = platform.getService(platform.setupToSystem(Enums.XtSetup.SYSTEM_AUDIO));
-    if ((PlatformUtil.isLinux() || PlatformUtil.isUnix()) && !PlatformUtil.isMac()) {
-      service = platform.getService(Enums.XtSystem.JACK);
-    }
-    if (service == null) {
-      service = platform.getService(platform.setupToSystem(Enums.XtSetup.SYSTEM_AUDIO));
-    }
     if (service == null) {
       service = platform.getService(platform.setupToSystem(Enums.XtSetup.PRO_AUDIO));
     }

src/main/java/sh/ball/gui/Gui.java

@@ -31,6 +31,7 @@ import java.nio.file.Path;
 import java.text.SimpleDateFormat;
 import java.util.Date;
 import java.util.Objects;
+import java.util.function.BiConsumer;
 import java.util.logging.*;
 
 public class Gui extends Application {
@@ -40,12 +41,11 @@ public class Gui extends Application {
   public static String LOG_DIR = "./logs/";
   public static final Logger logger = Logger.getLogger(Gui.class.getName());
 
-  public static ProjectSelectController projectSelectController;
   public static ShapeAudioPlayer audioPlayer;
   public static AudioDevice defaultDevice;
-  public static CodeEditor editor;
+
-  public static Stage editorStage;
+  private static CodeEditor editor;
-  public static Scene editorScene;
+  private static Stage editorStage;
 
   static {
     try {
@@ -79,13 +79,11 @@ public class Gui extends Application {
     new Thread(midiCommunicator).start();
   }
 
-  private Stage stage;
   private Scene scene;
   private Parent root;
 
   @Override
   public void start(Stage stage) throws Exception {
-    this.stage = stage;
     System.setProperty("prism.lcdtext", "false");
     System.setProperty("org.luaj.luajc", "true");
 
@@ -93,7 +91,7 @@ public class Gui extends Application {
 
     FXMLLoader projectSelectLoader = new FXMLLoader(getClass().getResource("/fxml/projectSelect.fxml"));
     Parent projectSelectRoot = projectSelectLoader.load();
-    projectSelectController = projectSelectLoader.getController();
+    ProjectSelectController projectSelectController = projectSelectLoader.getController();
     projectSelectController.setOpenBrowser(url -> getHostServices().showDocument(url));
 
     stage.getIcons().add(new Image(Objects.requireNonNull(getClass().getResourceAsStream("/icons/icon.png"))));
@@ -166,12 +164,11 @@ public class Gui extends Application {
     editor = new CodeEditor();
     editor.initialize();
     editorStage = new Stage();
-    editorScene = new Scene(editor, 900, 600, false, SceneAntialiasing.BALANCED);
+    Scene editorScene = new Scene(editor, 900, 600, false, SceneAntialiasing.BALANCED);
     editorStage.setScene(editorScene);
     editorStage.getIcons().add(new Image(Objects.requireNonNull(Gui.class.getResourceAsStream("/icons/icon.png"))));
     editor.prefHeightProperty().bind(editorStage.heightProperty());
     editor.prefWidthProperty().bind(editorStage.widthProperty());
-    editor.setCallback(controller::updateFileData);
   }
 
   public void launchMainApplication(MainController controller, String projectPath, Boolean muted) throws Exception {
@@ -194,20 +191,12 @@ public class Gui extends Application {
     }
   }
 
-  public static void launchCodeEditor(String code, String fileName) {
+  public static void launchCodeEditor(String code, String fileName, String mimeType, BiConsumer<byte[], String> callback) {
     editor.setCode(code, fileName);
+    editor.setCallback(callback);
     editorStage.show();
     editorStage.setTitle(fileName);
-
+    editor.setMode(mimeType);
-    if (LuaParser.isLuaFile(fileName)) {
-      editor.setMode("text/x-lua");
-    } else if (ObjParser.isObjFile(fileName)) {
-      editor.setMode("");
-    } else if (SvgParser.isSvgFile(fileName)) {
-      editor.setMode("text/html");
-    } else if (TextParser.isTxtFile(fileName)) {
-      editor.setMode("");
-    }
   }
 
   public static void closeCodeEditor() {

src/main/java/sh/ball/gui/controller/EffectsController.java

@@ -13,11 +13,15 @@ import org.w3c.dom.Element;
 import sh.ball.audio.FrequencyAnalyser;
 import sh.ball.audio.effect.*;
 import sh.ball.audio.engine.AudioDevice;
+import sh.ball.gui.Gui;
 import sh.ball.gui.components.EffectComponentGroup;
+import sh.ball.parser.lua.LuaExecutor;
+import sh.ball.parser.lua.LuaParser;
 import sh.ball.shapes.Shape;
 import sh.ball.shapes.Vector2;
 
 import java.net.URL;
+import java.nio.charset.StandardCharsets;
 import java.util.*;
 import java.util.function.Function;
 import java.util.stream.Collectors;
@@ -29,6 +33,8 @@ public class EffectsController implements Initializable, SubController {
 
   private static final int DEFAULT_SAMPLE_RATE = 192000;
 
+  private final LuaExecutor executor = new LuaExecutor(LuaExecutor.STANDARD_GLOBALS);
+
   private final WobbleEffect wobbleEffect;
   private final PerspectiveEffect perspectiveEffect;
   private final TranslateEffect translateEffect;
@@ -88,10 +94,12 @@ public class EffectsController implements Initializable, SubController {
   private Button resetRotationButton;
   @FXML
   private Button resetPerspectiveRotationButton;
+  @FXML
+  private Button depthFunctionButton;
 
   public EffectsController() {
     this.wobbleEffect = new WobbleEffect(DEFAULT_SAMPLE_RATE);
-    this.perspectiveEffect = new PerspectiveEffect();
+    this.perspectiveEffect = new PerspectiveEffect(executor);
     this.translateEffect = new TranslateEffect(DEFAULT_SAMPLE_RATE, 1, new Vector2());
     this.rotateEffect = new RotateEffect(DEFAULT_SAMPLE_RATE);
   }
@@ -237,6 +245,14 @@ public class EffectsController implements Initializable, SubController {
       rotateSpeed3D.controller.slider.setValue(0);
       perspectiveEffect.resetRotation();
     });
+
+    String script = "return { x, y, z }";
+    executor.setScript(script);
+    depthFunctionButton.setOnAction(e -> Gui.launchCodeEditor(script, "3D Perspective Effect Depth Function", "text/x-lua", this::updateDepthFunction));
+  }
+
+  private void updateDepthFunction(byte[] fileData, String fileName) {
+    executor.setScript(new String(fileData, StandardCharsets.UTF_8));
   }
 
   private List<EffectComponentGroup> effects() {

src/main/java/sh/ball/gui/controller/MainController.java

@@ -4,10 +4,15 @@ import javafx.animation.KeyFrame;
 import javafx.animation.Timeline;
 import javafx.application.Platform;
 import javafx.collections.FXCollections;
+import javafx.event.Event;
 import javafx.scene.control.*;
 import javafx.scene.control.Menu;
 import javafx.scene.control.MenuItem;
 import javafx.scene.control.TextField;
+import javafx.scene.control.skin.ComboBoxListViewSkin;
+import javafx.scene.input.KeyCode;
+import javafx.scene.input.KeyEvent;
+import javafx.scene.input.MouseEvent;
 import javafx.scene.paint.Color;
 import javafx.scene.paint.Paint;
 import javafx.scene.shape.SVGPath;
@@ -61,6 +66,7 @@ import sh.ball.parser.lua.LuaParser;
 import sh.ball.parser.obj.ObjFrameSettings;
 import sh.ball.parser.obj.ObjParser;
 import sh.ball.parser.ParserFactory;
+import sh.ball.parser.svg.SvgParser;
 import sh.ball.parser.txt.FontStyle;
 import sh.ball.shapes.Shape;
 import sh.ball.shapes.ShapeFrameSource;
@@ -142,6 +148,8 @@ public class MainController implements Initializable, FrequencyListener, MidiLis
   @FXML
   private MenuItem openProjectMenuItem;
   @FXML
+  private Menu audioMenu;
+  @FXML
   private Menu recentProjectMenu;
   @FXML
   private MenuItem saveProjectMenuItem;
@@ -184,6 +192,8 @@ public class MainController implements Initializable, FrequencyListener, MidiLis
   @FXML
   private ComboBox<AudioDevice> deviceComboBox;
   @FXML
+  private CustomMenuItem audioDeviceMenuItem;
+  @FXML
   private Slider brightnessSlider;
   @FXML
   private CustomMenuItem recordLengthMenuItem;
@@ -1397,7 +1407,14 @@ public class MainController implements Initializable, FrequencyListener, MidiLis
   void openCodeEditor() {
     String code = new String(openFiles.get(currentFrameSource), StandardCharsets.UTF_8);
     closeCodeEditor();
-    launchCodeEditor(code, frameSourcePaths.get(currentFrameSource));
+    String name = frameSourcePaths.get(currentFrameSource);
+    String mimeType = "";
+    if (LuaParser.isLuaFile(name)) {
+      mimeType = "text/x-lua";
+    } else if (SvgParser.isSvgFile(name)) {
+      mimeType = "text/html";
+    }
+    launchCodeEditor(code, frameSourcePaths.get(currentFrameSource), mimeType, this::updateFileData);
   }
 
   private void updateTitle(String message, String projectName) {

src/main/java/sh/ball/parser/lua/LuaExecutor.java

@@ -0,0 +1,200 @@
+package sh.ball.parser.lua;
+
+import org.luaj.vm2.*;
+import org.luaj.vm2.lib.ThreeArgFunction;
+import org.luaj.vm2.lib.TwoArgFunction;
+import org.luaj.vm2.lib.jse.CoerceJavaToLua;
+import org.luaj.vm2.lib.jse.JsePlatform;
+
+import javax.script.ScriptException;
+import java.io.StringReader;
+import java.util.*;
+import java.util.logging.Level;
+
+import static sh.ball.gui.Gui.logger;
+
+public class LuaExecutor {
+
+  public static final Globals STANDARD_GLOBALS = JsePlatform.standardGlobals();
+
+  static {
+    org.luaj.vm2.luajc.LuaJC.install(STANDARD_GLOBALS);
+  }
+
+  private final Globals globals;
+  private final Map<LuaString, LuaValue> bindings = new HashMap<>();
+  private final Set<LuaString> programDefinedVariables = new HashSet<>();
+  private LuaFunction lastWorkingFunction;
+  private String lastWorkingTextScript;
+  private LuaFunction function;
+  private String textScript;
+  private long step = 1;
+
+  public LuaExecutor(Globals globals) {
+    this.globals = globals;
+  }
+
+  public void setScript(String script) {
+    LuaFunction f = LuaExecutor.STANDARD_GLOBALS.load(new StringReader(script), "script").checkfunction();
+    setFunction(script, f);
+  }
+
+  private void setFunction(String textScript, LuaFunction function) {
+    if (lastWorkingFunction == null) {
+      lastWorkingFunction = function;
+      lastWorkingTextScript = textScript;
+    }
+    this.function = function;
+    this.textScript = textScript;
+  }
+
+  public LuaValue execute() {
+    try {
+      boolean updatedFile = false;
+
+      globals.setmetatable(new BindingsMetatable(bindings));
+      bindings.put(LuaValue.valueOf("step"), LuaValue.valueOf((double) step));
+
+      LuaValue result;
+      try {
+        result = (LuaValue) LuaExecutor.eval(function, globals);
+        if (!lastWorkingTextScript.equals(textScript)) {
+          lastWorkingFunction = function;
+          lastWorkingTextScript = textScript;
+          updatedFile = true;
+        }
+      } catch (Exception e) {
+        logger.log(Level.INFO, e.getMessage(), e);
+        result = (LuaValue) LuaExecutor.eval(lastWorkingFunction, globals);
+      }
+      step++;
+
+      if (updatedFile) {
+        // reset variables
+        step = 1;
+        List<LuaString> variablesToRemove = new ArrayList<>();
+        bindings.keySet().forEach(name -> {
+          if (!programDefinedVariables.contains(name)) {
+            variablesToRemove.add(name);
+          }
+        });
+        variablesToRemove.forEach(bindings::remove);
+      }
+
+      return result;
+    } catch (Exception e) {
+      logger.log(Level.INFO, e.getMessage(), e);
+    }
+
+    return LuaValue.NIL;
+  }
+
+  public void setVariable(String variableName, Object value) {
+    LuaString name = LuaValue.valueOf(variableName);
+    programDefinedVariables.add(name);
+    bindings.put(name, toLua(value));
+  }
+
+  public void resetStep() {
+    step = 1;
+  }
+
+  /*
+MIT License
+
+Copyright (c) 2007 LuaJ. All rights reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit p ersons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+------------------------------
+
+The below functions have all been modified by James Ball to optimise Lua parsing
+on machines with poorer performance.
+
+
+   */
+
+  static class BindingsMetatable extends LuaTable {
+
+    BindingsMetatable(Map<LuaString, LuaValue> bindings) {
+      this.rawset(LuaValue.INDEX, new TwoArgFunction() {
+        public LuaValue call(LuaValue table, LuaValue key) {
+          LuaValue value = bindings.get(key.checkstring());
+          if (value == null) {
+            return LuaValue.NIL;
+          } else {
+            return value;
+          }
+        }
+      });
+      this.rawset(LuaValue.NEWINDEX, new ThreeArgFunction() {
+        public LuaValue call(LuaValue table, LuaValue key, LuaValue value) {
+          if (value == null || value.type() == LuaValue.TNIL) {
+            bindings.remove(key.checkstring());
+          } else {
+            bindings.put(key.checkstring(), value);
+          }
+          return LuaValue.NONE;
+        }
+      });
+    }
+  }
+
+  static private LuaValue toLua(Object javaValue) {
+    return javaValue == null? LuaValue.NIL:
+      javaValue instanceof LuaValue? (LuaValue) javaValue:
+        CoerceJavaToLua.coerce(javaValue);
+  }
+
+  static private Object toJava(LuaValue luajValue) {
+    return switch (luajValue.type()) {
+      case LuaValue.TNIL -> null;
+      case LuaValue.TSTRING -> luajValue.tojstring();
+      case LuaValue.TUSERDATA -> luajValue.checkuserdata(Object.class);
+      case LuaValue.TNUMBER -> luajValue.isinttype() ?
+        (Object) luajValue.toint() :
+        (Object) luajValue.todouble();
+      default -> luajValue;
+    };
+  }
+
+  static private Object toJava(Varargs v) {
+    final int n = v.narg();
+    switch (n) {
+      case 0: return null;
+      case 1: return toJava(v.arg1());
+      default:
+        Object[] o = new Object[n];
+        for (int i=0; i<n; ++i)
+          o[i] = toJava(v.arg(i+1));
+        return o;
+    }
+  }
+
+  static private Object eval(LuaFunction f, Globals g) throws ScriptException {
+    try {
+      f = f.getClass().newInstance();
+    } catch (Exception e) {
+      logger.log(Level.SEVERE, e.getMessage(), e);
+      throw new ScriptException(e);
+    }
+    f.initupvalue1(g);
+    return toJava(f.invoke(LuaValue.NONE));
+  }
+}

src/main/java/sh/ball/parser/lua/LuaParser.java

@@ -1,25 +1,15 @@
 package sh.ball.parser.lua;
 
-import org.luaj.vm2.Globals;
-import org.luaj.vm2.LuaFunction;
-import org.luaj.vm2.lib.jse.JsePlatform;
 import sh.ball.audio.FrameSource;
 import sh.ball.parser.FileParser;
 import sh.ball.shapes.Vector2;
 
-import javax.script.*;
 import java.io.*;
 import java.util.stream.Collectors;
 
 public class LuaParser extends FileParser<FrameSource<Vector2>> {
 
-  private static final Globals globals = JsePlatform.standardGlobals();
+  private final LuaSampleSource sampleSource = new LuaSampleSource(LuaExecutor.STANDARD_GLOBALS);
-
-  static {
-    org.luaj.vm2.luajc.LuaJC.install(globals);
-  }
-
-  private final LuaSampleSource sampleSource = new LuaSampleSource(globals);
 
   private String script;
 
@@ -35,10 +25,7 @@ public class LuaParser extends FileParser<FrameSource<Vector2>> {
 
   @Override
   public FrameSource<Vector2> parse() throws Exception {
-    LuaFunction f = globals.load(new StringReader(script), "script").checkfunction();
+    sampleSource.setScript(script);
-
-    sampleSource.setFunction(script, f);
-
     return sampleSource;
   }
 

src/main/java/sh/ball/parser/lua/LuaSampleSource.java

@@ -18,69 +18,21 @@ import static sh.ball.gui.Gui.logger;
 
 public class LuaSampleSource implements FrameSource<Vector2> {
 
-  private final Globals globals;
+  private final LuaExecutor executor;
-  private final Map<LuaString, LuaValue> bindings = new HashMap<>();
-  private final Set<LuaString> programDefinedVariables = new HashSet<>();
-  private LuaFunction lastWorkingFunction;
-  private String lastWorkingTextScript;
-  private LuaFunction function;
-  private String textScript;
   private boolean active = true;
-  private long step = 1;
 
   public LuaSampleSource(Globals globals) {
-    this.globals = globals;
+    this.executor = new LuaExecutor(globals);
   }
 
-  public void setFunction(String textScript, LuaFunction function) {
+  public void setScript(String textScript) {
-    if (lastWorkingFunction == null) {
+    executor.setScript(textScript);
-      lastWorkingFunction = function;
-      lastWorkingTextScript = textScript;
-    }
-    this.function = function;
-    this.textScript = textScript;
   }
 
   @Override
   public Vector2 next() {
-    try {
+    LuaValue result = executor.execute();
-      boolean updatedFile = false;
-
-      globals.setmetatable(new BindingsMetatable(bindings));
-      bindings.put(LuaValue.valueOf("step"), LuaValue.valueOf((double) step));
-
-      LuaValue result;
-      try {
-        result = (LuaValue) LuaSampleSource.eval(function, globals);
-        if (!lastWorkingTextScript.equals(textScript)) {
-          lastWorkingFunction = function;
-          lastWorkingTextScript = textScript;
-          updatedFile = true;
-        }
-      } catch (Exception e) {
-        logger.log(Level.INFO, e.getMessage(), e);
-        result = (LuaValue) LuaSampleSource.eval(lastWorkingFunction, globals);
-      }
-      step++;
-
-      if (updatedFile) {
-        // reset variables
-        step = 1;
-        List<LuaString> variablesToRemove = new ArrayList<>();
-        bindings.keySet().forEach(name -> {
-          if (!programDefinedVariables.contains(name)) {
-            variablesToRemove.add(name);
-          }
-        });
-        variablesToRemove.forEach(bindings::remove);
-      }
-
     return new Vector2(result.get(1).checkdouble(), result.get(2).checkdouble());
-    } catch (Exception e) {
-      logger.log(Level.INFO, e.getMessage(), e);
-    }
-
-    return new Vector2();
   }
 
   @Override
@@ -107,110 +59,10 @@ public class LuaSampleSource implements FrameSource<Vector2> {
   }
 
   public void setVariable(String variableName, Object value) {
-    programDefinedVariables.add(LuaValue.valueOf(variableName));
+    executor.setVariable(variableName, value);
-    bindings.put(LuaValue.valueOf(variableName), toLua(value));
   }
 
   public void resetStep() {
-    step = 1;
+    executor.resetStep();
-  }
-
-  /*
-MIT License
-
-Copyright (c) 2007 LuaJ. All rights reserved.
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit p ersons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
-
-------------------------------
-
-The below functions have all been modified by James Ball to optimise Lua parsing
-on machines with poorer performance.
-
-
-   */
-
-  static class BindingsMetatable extends LuaTable {
-
-    BindingsMetatable(Map<LuaString, LuaValue> bindings) {
-      this.rawset(LuaValue.INDEX, new TwoArgFunction() {
-        public LuaValue call(LuaValue table, LuaValue key) {
-          LuaValue value = bindings.get(key.checkstring());
-          if (value == null) {
-            return LuaValue.NIL;
-          } else {
-            return value;
-          }
-        }
-      });
-      this.rawset(LuaValue.NEWINDEX, new ThreeArgFunction() {
-        public LuaValue call(LuaValue table, LuaValue key, LuaValue value) {
-          if (value == null || value.type() == LuaValue.TNIL) {
-            bindings.remove(key.checkstring());
-          } else {
-            bindings.put(key.checkstring(), value);
-          }
-          return LuaValue.NONE;
-        }
-      });
-    }
-  }
-
-  static private LuaValue toLua(Object javaValue) {
-    return javaValue == null? LuaValue.NIL:
-      javaValue instanceof LuaValue? (LuaValue) javaValue:
-        CoerceJavaToLua.coerce(javaValue);
-  }
-
-  static private Object toJava(LuaValue luajValue) {
-    return switch (luajValue.type()) {
-      case LuaValue.TNIL -> null;
-      case LuaValue.TSTRING -> luajValue.tojstring();
-      case LuaValue.TUSERDATA -> luajValue.checkuserdata(Object.class);
-      case LuaValue.TNUMBER -> luajValue.isinttype() ?
-        (Object) luajValue.toint() :
-        (Object) luajValue.todouble();
-      default -> luajValue;
-    };
-  }
-
-  static private Object toJava(Varargs v) {
-    final int n = v.narg();
-    switch (n) {
-      case 0: return null;
-      case 1: return toJava(v.arg1());
-      default:
-        Object[] o = new Object[n];
-        for (int i=0; i<n; ++i)
-          o[i] = toJava(v.arg(i+1));
-        return o;
-    }
-  }
-
-  static private Object eval(LuaFunction f, Globals g) throws ScriptException {
-    try {
-      f = f.getClass().newInstance();
-    } catch (Exception e) {
-      logger.log(Level.SEVERE, e.getMessage(), e);
-      throw new ScriptException(e);
-    }
-    f.initupvalue1(g);
-    return toJava(f.invoke(LuaValue.NONE));
   }
 }

src/main/resources/fxml/effects.fxml

@@ -85,7 +85,12 @@
                      </children>
                   </AnchorPane>
                   <EffectComponentGroup fx:id="depthScale" increment="0.005" label="depthScale" majorTickUnit="0.1" max="1.0" min="0.0" name="3D Perspective" type="DEPTH_3D" value="1.0" />
-                  <EffectComponentGroup fx:id="zPos" alwaysEnabled="true" increment="0.005" label="zPos" max="1.0" name="3D Distance" type="Z_POS_3D" value="0.1" />
+                  <AnchorPane prefHeight="34.0" prefWidth="602.0">
+                     <children>
+                        <Button fx:id="depthFunctionButton" layoutX="232.0" layoutY="1.0" mnemonicParsing="false" text="Modify Depth Function" />
+                     </children>
+                  </AnchorPane>
+                  <EffectComponentGroup fx:id="zPos" alwaysEnabled="true" increment="0.005" label="zPos" max="1.0" name="3D Distance (z)" type="Z_POS_3D" value="0.1" />
                   <EffectComponentGroup fx:id="rotateSpeed3D" alwaysEnabled="true" increment="0.005" label="rotateSpeed3d" majorTickUnit="0.2" max="1.0" min="-1.0" name="3D Rotate speed" type="ROTATE_SPEED_3D" value="0.0" />
                   <EffectComponentGroup fx:id="rotateX" alwaysEnabled="true" increment="0.01" label="imageRotateX" majorTickUnit="0.2" max="1.0" min="-1.0" name="Rotate x" type="ROTATE_X" value="1.0" />
                   <EffectComponentGroup fx:id="rotateY" alwaysEnabled="true" increment="0.01" label="imageRotateY" majorTickUnit="0.2" max="1.0" min="-1.0" name="Rotate y" type="ROTATE_Y" value="1.0" />

src/main/resources/fxml/main.fxml

@@ -39,11 +39,11 @@
                </MenuItem>
             </items>
        </Menu>
-         <Menu mnemonicParsing="false" text="Audio">
+         <Menu fx:id="audioMenu" mnemonicParsing="false" text="Audio">
             <items>
-               <CustomMenuItem hideOnClick="false" mnemonicParsing="false" text="Audio Device">
+               <CustomMenuItem fx:id="audioDeviceMenuItem" hideOnClick="false" mnemonicParsing="false" text="Audio Device">
                   <content>
-                     <AnchorPane>
+                     <AnchorPane focusTraversable="true">
                         <children>
                            <ComboBox fx:id="deviceComboBox" prefHeight="26.0" prefWidth="376.0" />
                         </children>