diff --git a/drone.lua b/drone.lua
index 78b5b66..a287c95 100644
--- a/drone.lua
+++ b/drone.lua
@@ -2,14 +2,21 @@ local drone = component.proxy(component.list("drone")())
 
 local function fly(dx, dy, dz)
     drone.move(dx, dy, dz)
+    drone.setStatusText(math.floor(dx) .. "," .. math.floor(dy) .. "," .. math.floor(dz))
 
-    while drone.getOffset() > 1 do
+    while drone.getOffset() > 0.5 do
         computer.pullSignal(0.1)
     end
 end
 while true do
-    fly(0,2,0)
-    fly(10,0,0)
-    fly(-10,0,0)
-    fly(0,-2,0)
+    local signal = table.pack(computer.pullSignal())
+    if signal[1] == "motion" then
+        if signal[6] == "Zombie" then
+            fly(signal[3], signal[4]+2, signal[5])
+            if drone.getOffset() < 1 then
+                drone.setStatusText('' .. drone.getOffset())
+                drone.swing(3) -- forward
+            end
+        end
+    end
 end