Script fixes, padding improvements

tools/build.gradle

@@ -112,6 +112,7 @@ task scaleSprites(){
 
 task pack(){
     dependsOn 'cleanSprites', 'scaleSprites'
+    finalizedBy 'cleanup'
 
     doLast{
 
@@ -121,9 +122,15 @@ task pack(){
         }
 
         TexturePacker.process("core/assets-raw/sprites_out/", "core/assets/sprites/", "sprites.atlas")
+    }
+    
+}
 
-        delete{
-        //    delete outFolder
+task cleanup(){
+    doLast {
+        delete {
+            delete genFolder
+            delete outFolder
         }
     }
 }