Updated Android tool versions

android/build.gradle

@@ -36,8 +36,8 @@ task deploy(type: Copy){
 }
 
 android {
-    buildToolsVersion '27.0.3'
-    compileSdkVersion 27
+    buildToolsVersion '28.0.2'
+    compileSdkVersion 28
     sourceSets {
         main {
             manifest.srcFile 'AndroidManifest.xml'
@@ -137,6 +137,7 @@ task copyAndroidNatives() {
         }
     }
 }
+
 task run(type: Exec) {
     def path
     def localProperties = project.file("../local.properties")
@@ -158,36 +159,7 @@ task run(type: Exec) {
     def adb = path + "/platform-tools/adb"
     commandLine "$adb", 'shell', 'am', 'start', '-n', 'io.anuke.mindustry/io.anuke.mindustry.AndroidLauncher'
 }
-// sets up the Android Eclipse project, using the old Ant based build.
-eclipse {
-    // need to specify Java source sets explicitly, SpringSource Gradle Eclipse plugin
-    // ignores any nodes added in classpath.file.withXml
-    sourceSets {
-        main {
-            java.srcDirs "src", 'gen'
-        }
-    }
 
-    jdt {
-        sourceCompatibility = 1.7
-        targetCompatibility = 1.7
-    }
-
-    classpath {
-        plusConfigurations += [project.configurations.compile]
-        containers 'com.android.ide.eclipse.adt.ANDROID_FRAMEWORK', 'com.android.ide.eclipse.adt.LIBRARIES'
-    }
-
-    project {
-        name = appName + "-android"
-        natures 'com.android.ide.eclipse.adt.AndroidNature'
-        buildCommands.clear()
-        buildCommand "com.android.ide.eclipse.adt.ResourceManagerBuilder"
-        buildCommand "com.android.ide.eclipse.adt.PreCompilerBuilder"
-        buildCommand "org.eclipse.jdt.core.javabuilder"
-        buildCommand "com.android.ide.eclipse.adt.ApkBuilder"
-    }
-}
 // sets up the Android Idea project, using the old Ant based build.
 idea {
     module {

build.gradle

@@ -9,7 +9,7 @@ buildscript {
     dependencies {
         classpath 'com.mobidevelop.robovm:robovm-gradle-plugin:2.3.0'
         classpath 'de.richsource.gradle.plugins:gwt-gradle-plugin:0.6'
-        classpath 'com.android.tools.build:gradle:3.1.3'
+        classpath 'com.android.tools.build:gradle:3.2.0'
         classpath "com.badlogicgames.gdx:gdx-tools:1.9.8"
     }
 }

core/src/io/anuke/mindustry/world/blocks/power/PowerGraph.java

@@ -133,4 +133,15 @@ public class PowerGraph{
             }
         }
     }
+
+    @Override
+    public String toString(){
+        return "PowerGraph{" +
+        "producers=" + producers +
+        ", consumers=" + consumers +
+        ", all=" + all +
+        ", lastFrameUpdated=" + lastFrameUpdated +
+        ", graphID=" + graphID +
+        '}';
+    }
 }

core/src/io/anuke/mindustry/world/blocks/power/PowerNode.java

@@ -74,22 +74,22 @@ public class PowerNode extends PowerBlock{
 
         TileEntity entity = tile.entity();
 
-        entity.power.links.removeValue(other.packedPosition());
-
-        if(other.block() instanceof PowerNode){
-            other.entity.power.links.removeValue(tile.packedPosition());
-        }
-
         //clear all graph data first
         PowerGraph tg = entity.power.graph;
         tg.clear();
+
+        entity.power.links.removeValue(other.packedPosition());
+        other.entity.power.links.removeValue(tile.packedPosition());
+
         //reflow from this point, covering all tiles on this side
         tg.reflow(tile);
 
-        //create new graph for other end
-        PowerGraph og = new PowerGraph();
-        //reflow from other end
-        og.reflow(other);
+        if(other.entity.power.graph != tg){
+            //create new graph for other end
+            PowerGraph og = new PowerGraph();
+            //reflow from other end
+            og.reflow(other);
+        }
     }
 
     @Override