diff --git a/.gitignore b/.gitignore
index 0dc7b4b..a1bead5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
-/.vscode
\ No newline at end of file
+/.vscode
+build
\ No newline at end of file
diff --git a/ap_case/apcase.3mf b/ap_case/apcase.3mf
new file mode 100644
index 0000000..d74a1fb
Binary files /dev/null and b/ap_case/apcase.3mf differ
diff --git a/ap_case/apcase.FCStd b/ap_case/apcase.FCStd
new file mode 100644
index 0000000..364b6ad
Binary files /dev/null and b/ap_case/apcase.FCStd differ
diff --git a/recever.py b/recever.py
index 41f2ed9..cd11a68 100644
--- a/recever.py
+++ b/recever.py
@@ -9,11 +9,7 @@ BOAT_STATE_INCTRL = 1
 BOAT_STATE_AVAILABLE = 0
 BOAT_STATE_LOCKED = -1
 
-boats = [
-    { "id": 0, "name": "test boat", "state": BOAT_STATE_AVAILABLE },
-    { "id": 1, "name": "varent object", "state": BOAT_STATE_AVAILABLE }
-]
-
+boats = []
 clients = []
 
 def onCMD(data):
@@ -61,6 +57,47 @@ async def echoClients(client):
             data += str(client['id']) + ";" + str(client['boat']) + ";" + str(client['state']) + ":"
         await client['ws'].send(data + '\n')
 
+async def takeControll(client, boat):
+    global boats
+    if (client['boat'] is not None):
+        boat["state"] = BOAT_STATE_AVAILABLE
+        client["boat"] = None
+    for b in boats:
+        if (b['id'] == int(boat)):
+            if (boat['state'] == BOAT_STATE_AVAILABLE):
+                boat["state"] = BOAT_STATE_INCTRL
+                print("take controll: " + str(client["id"]) + " -> " + boat["name"])
+                client["boat"] = b
+                return
+            else:
+                print("WARN: takeControll: " + boat["name"] + " not available (" + str(client["id"]) + ")")
+                break
+
+async def freeBoat(boat):
+    global boats, clients
+    for client in clients:
+        if (client["boat"]['id'] == boat):
+            client["boat"] = None
+            break
+    for b in boats:
+        if (b['id'] == int(boat)):
+            if (boat['state'] == BOAT_STATE_INCTRL):
+                boat["state"] = BOAT_STATE_AVAILABLE
+            break
+
+async def lockBoat(boat):
+    global boats, clients
+    for client in clients:
+        if (client["boat"]['id'] == boat):
+            client["boat"] = None
+            break
+    for b in boats:
+        if (b['id'] == int(boat)):
+            boat["state"] = BOAT_STATE_LOCKED
+            break
+    
+    
+
 async def onMessage(message, client):
     global boats
     data = message.replace('\n', '').split(';')
@@ -70,13 +107,15 @@ async def onMessage(message, client):
         if  (data[1] == "boats"):
             await echoBoats(client)
         elif(data[1] == "ctrl"):
-            print("controll")
+            takeControll(client, data[2])
         elif(data[1] == "end"):
-            print("end")
+            takeControll(client, -1)
         elif(data[1] == "free"):
-            print("free")
+            if (client["id"] == adminId):
+                freeBoat(data[2])
         elif(data[1] == "lock"):
-            print("lock")
+            if (client["id"] == adminId):
+                lockBoat(data[2])
         elif(data[1] == "locked"):
             await echoLockedBoats(client)
         elif(data[1] == "kick"):
@@ -84,9 +123,12 @@ async def onMessage(message, client):
         elif(data[1] == "clients"):
             await echoClients(client)
         elif(data[1] == "d"):
-            print("controll cmd (" + client['id'] + "): " + data[2])
+            if (client['boat'] is None):
+                print("WARN: controll cmd (" + client['id'] + ") to None: " + data[2])
+            else:
+                print("INFO: controll cmd (" + client['id'] + ") to " + client['boat']['name'] + ": " + data[2])
         else:
-            print("something else: '" + data[1] + "'")
+            print("WARN: invalid command (" + client['id'] + "): '" + data[1] + "'")
 
 async def newClient(clientId, ws):
     client = { "id": clientId, "boat": None, "ws": ws, "state": "active" }
@@ -115,11 +157,11 @@ async def run(ws, path):
     async for message in ws:
         message = message.split(';')
         if (len(message) == 3 and message[1] == "4675"):
-            client = await newClient(message[1], ws)
+            client = await newClient(message[0], ws)
             if (client is not None):
                 break
         elif (len(message) == 3 and message[1] == "3440"):
-            client = await newBoat(message[1], message[2], ws)
+            client = await newBoat(message[0], message[2], ws)
             if (client is not None):
                 break