Fixed scripts not working on older Android phones

android/src/io/anuke/mindustry/rhino/AndroidContextFactory.java

@@ -0,0 +1,44 @@
+package io.anuke.mindustry.rhino;
+
+import android.os.*;
+import org.mozilla.javascript.*;
+
+import java.io.*;
+
+/**
+ * Ensures that the classLoader used is correct
+ * @author F43nd1r
+ * @since 11.01.2016
+ */
+public class AndroidContextFactory extends ContextFactory{
+
+    private final File cacheDirectory;
+
+    /**
+     * Create a new factory. It will cache generated code in the given directory
+     * @param cacheDirectory the cache directory
+     */
+    public AndroidContextFactory(File cacheDirectory){
+        this.cacheDirectory = cacheDirectory;
+        initApplicationClassLoader(createClassLoader(AndroidContextFactory.class.getClassLoader()));
+    }
+
+    /**
+     * Create a ClassLoader which is able to deal with bytecode
+     * @param parent the parent of the create classloader
+     * @return a new ClassLoader
+     */
+    @Override
+    public BaseAndroidClassLoader createClassLoader(ClassLoader parent){
+        if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.O){
+            return new InMemoryAndroidClassLoader(parent);
+        }
+        return new FileAndroidClassLoader(parent, cacheDirectory);
+    }
+
+    @Override
+    protected void onContextReleased(final Context cx){
+        super.onContextReleased(cx);
+        ((BaseAndroidClassLoader)cx.getApplicationClassLoader()).reset();
+    }
+}