diff --git a/core/assets/version.properties b/core/assets/version.properties
index 7c3841feb7..fbb0082b40 100644
--- a/core/assets/version.properties
+++ b/core/assets/version.properties
@@ -1,7 +1,7 @@
 #Autogenerated file. Do not modify.
-#Fri Apr 20 19:54:59 EDT 2018
+#Sat Apr 21 01:07:37 EDT 2018
 version=release
-androidBuildCode=1076
+androidBuildCode=1077
 name=Mindustry
 code=3.5
 build=custom build
diff --git a/core/src/io/anuke/mindustry/ai/OptimizedPathFinder.java b/core/src/io/anuke/mindustry/ai/OptimizedPathFinder.java
index 165519020e..834d48e803 100644
--- a/core/src/io/anuke/mindustry/ai/OptimizedPathFinder.java
+++ b/core/src/io/anuke/mindustry/ai/OptimizedPathFinder.java
@@ -26,9 +26,10 @@ public class OptimizedPathFinder {
     private static final byte OPEN = 1;
     private static final byte CLOSED = 2;
 
-    private static final boolean debug = true;
+    private static final boolean debug = false;
 
     public static boolean unop = false;
+    public static boolean step = true;
 
     public OptimizedPathFinder() {
         this.openList = new BinaryHeap<>();
@@ -70,6 +71,22 @@ public class OptimizedPathFinder {
         return false;
     }
 
+    public void runStep(Tile startNode, Tile endNode){
+        if(openList.size > 0) {
+            // Retrieve the node with smallest estimated total cost from the open list
+            current = openList.pop();
+            current.category = CLOSED;
+
+            // Terminate if we reached the goal node
+            if (current.node == endNode) return;
+
+            visitChildren(endNode);
+
+            cameFrom = current.node;
+
+        }
+    }
+
     public boolean search(PathFinderRequest<Tile> request, long timeToRun) {
 
         long lastTime = TimeUtils.nanoTime();
@@ -234,13 +251,6 @@ public class OptimizedPathFinder {
                     return;
                 }
             }else{ //moving diagonal
-                Tile sf = scanDir(rel(current, direction), end, direction);
-
-                if(sf != null){
-                    cons.accept(sf);
-                    return;
-                }
-
                 Tile sl = scanDir(rel(current, Mathf.mod(direction - 1, 8)), end, Mathf.mod(direction - 1, 8));
 
                 if(sl != null){
@@ -253,7 +263,12 @@ public class OptimizedPathFinder {
                     cons.accept(sr);
                 }
 
+                Tile sf = scanDir(rel(current, direction), end, direction);
 
+                if(sf != null){
+                    cons.accept(sf);
+                    return;
+                }
             }
 
             if(current == end){
@@ -286,6 +301,8 @@ public class OptimizedPathFinder {
                         (obstacle(rel(tile, direction - 3)) && !obstacle(rel(tile, direction - 2)) && !obstacle(rel(tile, direction + 2)))) {
                     if(debug) Effects.effect(Fx.node4, tile.worldx(), tile.worldy());
                     return tile;
+                }else{
+                    return null;
                 }
             }
             Tile next = rel(tile, direction);
@@ -302,7 +319,7 @@ public class OptimizedPathFinder {
     protected boolean obstacle(Tile tile){
         return tile == null || tile.solid();
     }
-;
+
     protected float estimate(Tile tile, Tile other){
         return Math.abs(tile.worldx() - other.worldx()) + Math.abs(tile.worldy() - other.worldy());
     }
diff --git a/core/src/io/anuke/mindustry/ai/Pathfinder.java b/core/src/io/anuke/mindustry/ai/Pathfinder.java
index ab1eb1f3c0..a7b3b2bed6 100644
--- a/core/src/io/anuke/mindustry/ai/Pathfinder.java
+++ b/core/src/io/anuke/mindustry/ai/Pathfinder.java
@@ -10,32 +10,33 @@ import io.anuke.ucore.core.Timers;
 import io.anuke.ucore.util.Log;
 
 public class Pathfinder {
-    private OptimizedPathFinder finder = new OptimizedPathFinder();
+    OptimizedPathFinder find = new OptimizedPathFinder();
+    Tile start, end;
 
     public Pathfinder(){
         Events.on(WorldLoadEvent.class, this::clear);
     }
 
     public void test(Tile start, Tile end){
+        this.start = start;
+        this.end = end;
         DefaultGraphPath<Tile> p = new DefaultGraphPath<>();
-/*
-        OptimizedPathFinder.unop = true;
-        Timers.markNs();
-        finder.searchNodePath(start, end, p);
-        for(Tile tile : p.nodes){
-            Effects.effect(Fx.breakBlock, tile.worldx(), tile.worldy());
-        }
-        Log.info("Normal elapsed: {0}", Timers.elapsedNs());*/
 
         OptimizedPathFinder.unop = false;
         Timers.markNs();
-        finder.searchNodePath(start, end, p);
-        for(Tile tile : p.nodes){
-            Effects.effect(Fx.breakBlock, tile.worldx(), tile.worldy());
+        find.searchNodePath(start, end, p);
+
+        for(Tile tile : p){
+            Effects.effect(Fx.node1, tile.worldx(), tile.worldy());
         }
+
         Log.info("JSFSAF elapsed: {0}", Timers.elapsedNs());
     }
 
+    public void step(){
+        find.runStep(start, end);
+    }
+
     private void clear(){
 
     }
diff --git a/core/src/io/anuke/mindustry/input/DesktopInput.java b/core/src/io/anuke/mindustry/input/DesktopInput.java
index 29efffda5c..22c9f58593 100644
--- a/core/src/io/anuke/mindustry/input/DesktopInput.java
+++ b/core/src/io/anuke/mindustry/input/DesktopInput.java
@@ -194,6 +194,10 @@ public class DesktopInput extends InputHandler{
 			world.pathfinder().test(world.tileWorld(player.x, player.y), world.tileWorld(Graphics.mouseWorld().x, Graphics.mouseWorld().y));
 		}
 
+		if(Inputs.keyTap(Input.L)){
+			world.pathfinder().step();
+		}
+
 		if(!ui.hasMouse()) {
 			if (showCursor)
 				Cursors.setHand();
diff --git a/core/src/io/anuke/mindustry/world/Tile.java b/core/src/io/anuke/mindustry/world/Tile.java
index eb1e25dfaf..c8d41d57f7 100644
--- a/core/src/io/anuke/mindustry/world/Tile.java
+++ b/core/src/io/anuke/mindustry/world/Tile.java
@@ -3,9 +3,9 @@ package io.anuke.mindustry.world;
 import com.badlogic.gdx.math.GridPoint2;
 import com.badlogic.gdx.utils.Array;
 import com.badlogic.gdx.utils.reflect.ClassReflection;
+import io.anuke.mindustry.content.blocks.Blocks;
 import io.anuke.mindustry.entities.TileEntity;
 import io.anuke.mindustry.game.Team;
-import io.anuke.mindustry.content.blocks.Blocks;
 import io.anuke.mindustry.world.blocks.types.modules.InventoryModule;
 import io.anuke.mindustry.world.blocks.types.modules.LiquidModule;
 import io.anuke.mindustry.world.blocks.types.modules.PowerModule;
@@ -328,7 +328,7 @@ public class Tile{
 
 		world.notifyChanged(this);
 	}
-	
+
 	@Override
 	public String toString(){
 		Block block = block();