Example implementation

src/main/java/org/openautonomousconnection/luascript/hosts/AudioHost.java

@@ -0,0 +1,9 @@
+package org.openautonomousconnection.luascript.hosts;
+
+import java.io.File;
+
+public interface AudioHost {
+
+    void play(File audioFile);
+
+}

src/main/java/org/openautonomousconnection/luascript/hosts/HostServices.java

@@ -45,6 +45,8 @@ public interface HostServices {
      */
     Optional<ConsoleHost> console();
 
+    Optional<AudioHost> audio();
+
     /**
      * Simple immutable implementation.
      */
@@ -54,6 +56,7 @@ public interface HostServices {
         private final EventHost events;
         private final ResourceHost resources;
         private final ConsoleHost console;
+        private final AudioHost audioHost;
 
         /**
          * Creates a HostServices container.
@@ -64,12 +67,13 @@ public interface HostServices {
          * @param resources resource host
          * @param console   console host
          */
-        public Default(UiHost ui, DomHost dom, EventHost events, ResourceHost resources, ConsoleHost console) {
+        public Default(UiHost ui, DomHost dom, EventHost events, ResourceHost resources, ConsoleHost console, AudioHost audioHost) {
             this.ui = ui;
             this.dom = dom;
             this.events = events;
             this.resources = resources;
             this.console = console;
+            this.audioHost = audioHost;
         }
 
         @Override
@@ -96,6 +100,11 @@ public interface HostServices {
         public Optional<ConsoleHost> console() {
             return Optional.ofNullable(console);
         }
+
+        @Override
+        public Optional<AudioHost> audio() {
+            return Optional.ofNullable(audioHost);
+        }
     }
 
     /**

src/main/java/org/openautonomousconnection/luascript/runtime/FxLuaScriptEngine.java

@@ -7,6 +7,7 @@ import org.openautonomousconnection.luascript.fx.FxDomHost;
 import org.openautonomousconnection.luascript.fx.FxEventHost;
 import org.openautonomousconnection.luascript.fx.FxUiHost;
 import org.openautonomousconnection.luascript.fx.FxWebViewResourceHost;
+import org.openautonomousconnection.luascript.hosts.AudioHost;
 import org.openautonomousconnection.luascript.hosts.HostServices;
 import org.openautonomousconnection.luascript.security.LuaExecutionPolicy;
 import org.openautonomousconnection.luascript.utils.LuaGlobalsFactory;
@@ -86,7 +87,8 @@ public final class FxLuaScriptEngine implements AutoCloseable {
         FxUiHost uiHost = new FxUiHost(engine, dom);
         FxWebViewResourceHost resourceHost = new FxWebViewResourceHost(engine);
         FxEventHost eventHost = new FxEventHost(dom);
-        HostServices services = new HostServices.Default(uiHost, dom, eventHost, resourceHost, console);
+        // TODO: Default implementation or parameter for "audioHost"
+        HostServices services = new HostServices.Default(uiHost, dom, eventHost, resourceHost, console, audioHost);
         LuaRuntime rt = new LuaRuntime(globals, services, policy);
         eventHost.setRouter(rt.eventRouter());
 

src/main/java/org/openautonomousconnection/luascript/tables/AudioTable.java

@@ -0,0 +1,29 @@
+package org.openautonomousconnection.luascript.tables;
+
+import org.luaj.vm2.LuaValue;
+import org.luaj.vm2.lib.OneArgFunction;
+import org.openautonomousconnection.luascript.hosts.AudioHost;
+import org.openautonomousconnection.luascript.hosts.HostServices;
+import org.openautonomousconnection.luascript.utils.ScriptTable;
+
+import java.io.File;
+
+public class AudioTable extends ScriptTable {
+    protected AudioTable() {
+        super("audio");
+    }
+
+    @Override
+    protected void define(HostServices services) {
+        AudioHost audioHost = services.audio().orElseThrow(() -> new IllegalStateException("DomHost not provided"));
+
+        table().set("play", new OneArgFunction() {
+            @Override
+            public LuaValue call(LuaValue arg) {
+                String fileName = arg.checkjstring();
+                audioHost.play(new File(fileName));
+                return LuaValue.NIL;
+            }
+        });
+    }
+}