diff --git a/build.gradle b/build.gradle
index aa0a6a74ca..c11d09b0dd 100644
--- a/build.gradle
+++ b/build.gradle
@@ -13,13 +13,16 @@ buildscript {
         mavenCentral()
         maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
         jcenter()
-
+        maven{ url 'https://jitpack.io' } // for the anuken packr
     }
     dependencies {
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlinVersion"
         classpath 'de.richsource.gradle.plugins:gwt-gradle-plugin:0.6'
         classpath 'com.android.tools.build:gradle:3.5.2'
         classpath 'com.mobidevelop.robovm:robovm-gradle-plugin:2.3.1'
+
+        // This is for wrapping the .jar file into a standalone executable
+        classpath "com.github.anuken:packr:-SNAPSHOT"
     }
 }
 
@@ -56,7 +59,6 @@ allprojects {
 project(":desktop") {
     apply plugin: "kotlin"
 
-
     dependencies {
         implementation project(":core")
         implementation "com.badlogicgames.gdx:gdx-backend-lwjgl:$gdxVersion"
@@ -67,6 +69,7 @@ project(":desktop") {
         implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlinVersion" // This iss so the JAR works with Kotlin
 
         implementation 'com.github.MinnDevelopment:java-discord-rpc:v2.0.1'
+
     }
 
 }
diff --git a/core/src/com/unciv/ui/mapeditor/TileEditorOptionsTable.kt b/core/src/com/unciv/ui/mapeditor/TileEditorOptionsTable.kt
index 114b94cb36..1eab44f604 100644
--- a/core/src/com/unciv/ui/mapeditor/TileEditorOptionsTable.kt
+++ b/core/src/com/unciv/ui/mapeditor/TileEditorOptionsTable.kt
@@ -181,7 +181,7 @@ class TileEditorOptionsTable(val mapEditorScreen: MapEditorScreen): Table(Camera
             val tileInfo = TileInfo()
             if (terrain.type == TerrainType.TerrainFeature) {
                 tileInfo.baseTerrain = when {
-                    terrain.occursOn == null -> terrain.occursOn!!.first()
+                    terrain.occursOn != null -> terrain.occursOn.first()
                     else -> "Grassland"
                 }
                 tileInfo.terrainFeature = terrain.name
diff --git a/desktop/build.gradle b/desktop/build.gradle
index 86baa7fd1b..78772f5f5d 100644
--- a/desktop/build.gradle
+++ b/desktop/build.gradle
@@ -24,7 +24,7 @@ task debug(dependsOn: classes, type: JavaExec) {
     debug = true
 }
 
-task dist(type: Jar) {
+task dist(dependsOn: classes, type: Jar) {
     from files(sourceSets.main.output.resourcesDir)
     from files(sourceSets.main.output.classesDirs)
     // see Laurent1967's comment on https://github.com/libgdx/libgdx/issues/5491
@@ -39,7 +39,20 @@ task dist(type: Jar) {
     }
 }
 
-dist.dependsOn classes
+//task packrWindows(){
+//    PackrConfig config = new PackrConfig();
+//    config.platform = PackrConfig.Platform.Windows32;
+//    config.jdk = "/User/badlogic/Downloads/openjdk-for-mac.zip";
+//    config.executable = "myapp";
+//    config.classpath = Arrays.asList("myjar.jar");
+//    config.removePlatformLibs = config.classpath;
+//    config.mainClass = "com.my.app.MainClass";
+//    config.vmArgs = Arrays.asList("Xmx1G");
+//    config.minimizeJre = "soft";
+//    config.outDir = new File("out-mac");
+//
+//    new Packr().pack(config);
+//}
 
 eclipse {
     project {
@@ -58,8 +71,8 @@ task afterEclipseImport(description: "Post processing after project generation",
     printer.print(classpath)
   }
 }
-
-dependencies {
-    implementation "com.badlogicgames.gdx:gdx-freetype-platform:$gdxVersion:natives-desktop"
-    implementation project(path: ':core')
-}
\ No newline at end of file
+//
+//dependencies {
+//    implementation "com.badlogicgames.gdx:gdx-freetype-platform:$gdxVersion:natives-desktop"
+//    implementation project(path: ':core')
+//}
\ No newline at end of file
diff --git a/out-mac/config.json b/out-mac/config.json
new file mode 100644
index 0000000000..b133ce6533
--- /dev/null
+++ b/out-mac/config.json
@@ -0,0 +1,9 @@
+{
+  "classPath": [
+    "myjar.jar"
+  ],
+  "mainClass": "com.my.app.MainClass",
+  "vmArgs": [
+    "-Xmx1G"
+  ]
+}
\ No newline at end of file
diff --git a/tests/src/de/tomgrill/gdxtesting/examples/AssetExistsExampleTest.java b/tests/src/de/tomgrill/gdxtesting/examples/AssetExistsExampleTest.java
deleted file mode 100644
index 2413606c43..0000000000
--- a/tests/src/de/tomgrill/gdxtesting/examples/AssetExistsExampleTest.java
+++ /dev/null
@@ -1,30 +0,0 @@
-//  Taken from https://github.com/TomGrill/gdx-testing
-
-package de.tomgrill.gdxtesting.examples;
-
-import com.badlogic.gdx.Gdx;
-import com.unciv.models.gamebasics.GameBasics;
-
-import org.junit.Test;
-import org.junit.runner.RunWith;
-
-import de.tomgrill.gdxtesting.GdxTestRunner;
-
-import static org.junit.Assert.assertTrue;
-
-@RunWith(GdxTestRunner.class)
-public class AssetExistsExampleTest {
-
-	@Test
-	public void gamePngExists() {
-		assertTrue("This test will only pass when the game.png exists",
-				Gdx.files.local("game.png").exists());
-	}
-
-	@Test
-	public void gameBasicsLoad() {
-		assertTrue("This test will only pass when the game.png exists",
-				GameBasics.INSTANCE.getBuildings().size() > 0);
-	}
-
-}
diff --git a/tests/src/de/tomgrill/gdxtesting/examples/BasicTests.kt b/tests/src/de/tomgrill/gdxtesting/examples/BasicTests.kt
new file mode 100644
index 0000000000..4614f62d67
--- /dev/null
+++ b/tests/src/de/tomgrill/gdxtesting/examples/BasicTests.kt
@@ -0,0 +1,36 @@
+//  Taken from https://github.com/TomGrill/gdx-testing
+
+package de.tomgrill.gdxtesting.examples
+
+import com.badlogic.gdx.Gdx
+import com.unciv.UnCivGame
+import com.unciv.models.gamebasics.GameBasics
+import com.unciv.ui.mapeditor.MapEditorScreen
+import de.tomgrill.gdxtesting.GdxTestRunner
+import org.junit.Assert.assertTrue
+import org.junit.Test
+import org.junit.runner.RunWith
+
+@RunWith(GdxTestRunner::class)
+class BasicTests {
+
+    @Test
+    fun gamePngExists() {
+        assertTrue("This test will only pass when the game.png exists",
+                Gdx.files.local("game.png").exists())
+    }
+
+    @Test
+    fun gameBasicsLoad() {
+        assertTrue("This test will only pass when the GameBasics can initialize, and there are buildings",
+                GameBasics.Buildings.size > 0)
+    }
+
+    @Test
+    fun canOpenMapEditorScreen() {
+        UnCivGame.Current.setScreen(MapEditorScreen(UnCivGame.Current.gameInfo.tileMap))
+        assertTrue("This test will only pass when we can open the map editor screen",
+                GameBasics.Buildings.size > 0)
+    }
+
+}