it is done

core/src/mindustry/mod/Scripts.java

@@ -0,0 +1,84 @@
+package mindustry.mod;
+
+import arc.*;
+import arc.files.*;
+import arc.util.*;
+import arc.util.Log.*;
+import mindustry.*;
+import mindustry.mod.Mods.*;
+import org.mozilla.javascript.*;
+
+public class Scripts implements Disposable{
+    private final Context context;
+    private final String wrapper;
+    private Scriptable scope;
+    private boolean errored;
+
+    public Scripts(){
+        Time.mark();
+
+        context = Vars.platform.getScriptContext();
+        context.setClassShutter(type -> (ClassAccess.allowedClassNames.contains(type) || type.startsWith("$Proxy") ||
+            type.startsWith("adapter") || type.contains("PrintStream") ||
+            type.startsWith("io.anuke.mindustry")) && !type.equals("mindustry.mod.ClassAccess"));
+
+        scope = new ImporterTopLevel(context);
+        wrapper = Core.files.internal("scripts/wrapper.js").readString();
+
+        if(!run(Core.files.internal("scripts/global.js").readString(), "global.js")){
+            errored = true;
+        }
+        Log.debug("Time to load script engine: {0}", Time.elapsed());
+    }
+
+    public boolean hasErrored(){
+        return errored;
+    }
+
+    public String runConsole(String text){
+        try{
+            Object o = context.evaluateString(scope, text, "console.js", 1, null);
+            if(o instanceof NativeJavaObject){
+                o = ((NativeJavaObject)o).unwrap();
+            }
+            if(o instanceof Undefined){
+                o = "undefined";
+            }
+            return String.valueOf(o);
+        }catch(Throwable t){
+            return getError(t);
+        }
+    }
+
+    private String getError(Throwable t){
+        t.printStackTrace();
+        return t.getClass().getSimpleName() + (t.getMessage() == null ? "" : ": " + t.getMessage());
+    }
+
+    public void log(String source, String message){
+        log(LogLevel.info, source, message);
+    }
+
+    public void log(LogLevel level, String source, String message){
+        Log.log(level, "[{0}]: {1}", source, message);
+    }
+
+    public void run(LoadedMod mod, Fi file){
+        run(wrapper.replace("$SCRIPT_NAME$", mod.name + "/" + file.nameWithoutExtension()).replace("$CODE$", file.readString()).replace("$MOD_NAME$", mod.name), file.name());
+    }
+
+    private boolean run(String script, String file){
+        try{
+            context.evaluateString(scope, script, file, 1, null);
+            return true;
+        }catch(Throwable t){
+            log(LogLevel.err, file, "" + getError(t));
+            return false;
+        }
+    }
+
+    @Override
+    public void dispose(){
+        Context.exit();
+    }
+}