diff --git a/reborn.py b/reborn.py
index 4b57c36..535c9cf 100755
--- a/reborn.py
+++ b/reborn.py
@@ -44,6 +44,8 @@ class Warehouse:
         self.pos = pos
         self.items = items
 
+        self.plannedItems = self.items
+
     def near(pos):
         couples = []
         for el in __class__.ALL:
@@ -67,6 +69,8 @@ class Client:
         self.pos = pos
         self.needs = needs
 
+        self.plannedNeeds = self.needs
+
     def satisfied(self):
         return len(self.needs) == 0
 
@@ -94,8 +98,21 @@ class Drone:
         self.pos = Warehouse.get(0).pos
         self.items = []
         self.avail = 0
+
         self.tasks = []
 
+    def addTask(self, *task):
+        self.tasks.append(task)
+
+    def executeTask(self):
+        if self.available():
+            if len(self.tasks):
+                task = self.tasks[0]
+                getattr(self, task[0])(*task[1:])
+                self.tasks = self.tasks[1:]
+            else:
+                self.wait()
+
     def weight(self):
         s = 0
         for i in self.items:
@@ -223,26 +240,26 @@ readFile(sys.argv[1])
 def newTurn():
     global turn
     # Finishing turn
-    for drone in [drone for drone in Drone.ALL if drone.available()]:
-        drone.wait()
+    for drone in Drone.ALL:
+        drone.executeTask()
     # New turn
     turn += 1
     log("--- Turn", turn)
     availableDrones = [str(drone.id) for drone in Drone.ALL if drone.available()]
     log("Drones", ", ".join(availableDrones), "("+str(len(availableDrones))+")", "are available")
 
+SIMULATION = 2
 try:
     d = 0
-    c = Client.near(Warehouse.get(0).pos)[0]
-    N = c.needs.copy()
-    for n in N:
-        Drone.get(d).load(Warehouse.get(0), Product.get(n), 1)
-        d += 1
-    newTurn()
-    d = 0
-    for n in N:
-        Drone.get(d).deliver(c, Product.get(Drone.get(d).items[0]), 1)
-        d += 1
+    for c in Client.near(Warehouse.get(0).pos):
+        N = c.needs.copy()
+        for n in N:
+            if d < Drone.len():
+                Drone.get(d).addTask('load', Warehouse.get(0), Product.get(n), 1)
+                Drone.get(d).addTask('deliver', c, Product.get(n), 1)
+            d += 1
+    while turn < SIMULATION:
+        newTurn()
 
 
 except KeyboardInterrupt: