diff --git a/build.gradle b/build.gradle
index adb7a5c3f1..838f12f916 100644
--- a/build.gradle
+++ b/build.gradle
@@ -9,6 +9,7 @@ buildscript {
     dependencies {
         classpath 'de.richsource.gradle.plugins:gwt-gradle-plugin:0.6'
         classpath 'com.android.tools.build:gradle:3.0.1'
+        classpath "com.badlogicgames.gdx:gdx-tools:1.9.8"
     }
 }
 
diff --git a/core/build.gradle b/core/build.gradle
index 45f183a492..bd295c0c39 100644
--- a/core/build.gradle
+++ b/core/build.gradle
@@ -3,14 +3,18 @@ sourceCompatibility = 1.8
 [compileJava, compileTestJava]*.options*.encoding = 'UTF-8'
 sourceSets.main.java.srcDirs = ["src/"]
 
-def TEXPACK_DIR = "$System.env.TEXPACK_DIR"
+import com.badlogic.gdx.tools.texturepacker.TexturePacker
 
-task packSprites(type: Exec){
-	commandLine "java", "-cp", TEXPACK_DIR, "com.badlogic.gdx.tools.texturepacker.TexturePacker", "assets-raw/sprites/", "assets/sprites/", "sprites.atlas"
+task packSprites(){
+	doLast {
+		TexturePacker.process("core/assets-raw/sprites/", "core/assets/sprites/", "sprites.atlas")
+	}
 }
 
-task packUI(type: Exec){
-	commandLine "java", "-cp", TEXPACK_DIR, "com.badlogic.gdx.tools.texturepacker.TexturePacker", "assets-raw/ui/", "assets/ui/", "uiskin.atlas"
+task packUI(){
+	doLast {
+		TexturePacker.process("core/assets-raw/ui/", "core/assets/ui/", "uiskin.atlas")
+	}
 }
 
 task pack(){
diff --git a/desktop/build.gradle b/desktop/build.gradle
index fcf8cffd46..f4e47fba0c 100644
--- a/desktop/build.gradle
+++ b/desktop/build.gradle
@@ -6,7 +6,7 @@ sourceSets.main.java.srcDirs = [ "src/" ]
 project.ext.mainClassName = "io.anuke.mindustry.desktop.DesktopLauncher"
 project.ext.assetsDir = new File("../core/assets");
 
-def PACKR_DIR = System.getenv('HOME') + "/Documents/Packr/"
+def PACKR_DIR = "$System.env.PACKR_DIR"
 def ICON_DIR = new File("core/assets/sprites/icon.icns")
 
 task run(dependsOn: classes, type: JavaExec) {
diff --git a/html/src/io/anuke/mindustry/GdxDefinition.gwt.xml b/html/src/io/anuke/mindustry/GdxDefinition.gwt.xml
index f7ce42f271..e1a5cefdca 100644
--- a/html/src/io/anuke/mindustry/GdxDefinition.gwt.xml
+++ b/html/src/io/anuke/mindustry/GdxDefinition.gwt.xml
@@ -1,5 +1,4 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE module PUBLIC "-//Google Inc.//DTD Google Web Toolkit trunk//EN" "https://raw.githubusercontent.com/gwtproject/gwt/master/distro-source/core/src/gwt-module.dtd">
 <module rename-to="html">
 	<inherits name='com.badlogic.gdx.backends.gdx_backends_gwt' />
 	<inherits name='com.badlogic.gdx.ai' />