Desktop-specific scripting

desktop/src/io/anuke/mindustry/desktop/DesktopLauncher.java

@@ -22,6 +22,7 @@ import io.anuke.mindustry.core.GameState.*;
 import io.anuke.mindustry.core.Version;
 import io.anuke.mindustry.desktop.steam.*;
 import io.anuke.mindustry.game.EventType.*;
+import io.anuke.mindustry.mod.*;
 import io.anuke.mindustry.mod.Mods.*;
 import io.anuke.mindustry.net.*;
 import io.anuke.mindustry.net.Net.*;
@@ -264,6 +265,11 @@ public class DesktopLauncher extends ClientLauncher{
         });
     }
 
+    @Override
+    public Scripts createScripts(){
+        return new GraalScripts();
+    }
+
     @Override
     public Array<FileHandle> getWorkshopContent(Class<? extends Publishable> type){
         return !steam ? super.getWorkshopContent(type) : SVars.workshop.getWorkshopFiles(type);

desktop/src/io/anuke/mindustry/desktop/GraalScripts.java

@@ -0,0 +1,42 @@
+package io.anuke.mindustry.desktop;
+
+import io.anuke.arc.*;
+import io.anuke.arc.files.*;
+import io.anuke.arc.util.*;
+import io.anuke.mindustry.mod.*;
+import io.anuke.mindustry.mod.Mods.*;
+import org.graalvm.polyglot.*;
+
+import java.io.*;
+
+public class GraalScripts extends Scripts{
+    private static final Class[] denied = {FileHandle.class, InputStream.class, File.class, Scripts.class, Files.class, ClassAccess.class};
+    private final Context context;
+    private final String wrapper;
+
+    public GraalScripts(){
+        Time.mark();
+        Context.Builder builder = Context.newBuilder("js").allowHostClassLookup(ClassAccess.allowedClassNames::contains);
+
+        HostAccess.Builder hb = HostAccess.newBuilder();
+        hb.allowPublicAccess(true);
+        for(Class c : denied){
+            hb.denyAccess(c);
+        }
+        builder.allowHostAccess(hb.build());
+
+        context = builder.build();
+        wrapper = Core.files.internal("scripts/wrapper.js").readString();
+
+        run(Core.files.internal("scripts/global.js").readString());
+        Log.info("Time to load script engine: {0}", Time.elapsed());
+    }
+
+    public void run(LoadedMod mod, FileHandle file){
+        run(wrapper.replace("$SCRIPT_NAME$", mod.name + "_" +file.nameWithoutExtension().replace("-", "_").replace(" ", "_")).replace("$CODE$", file.readString()));
+    }
+
+    private void run(String script){
+        context.eval("js", script);
+    }
+}