Boolean result of ComPort actions are stored in B register

Plugin Cubot/src/main/java/net/simon987/cubotplugin/Cubot.java

@@ -13,6 +13,8 @@ public class Cubot extends GameObject implements Updatable, ControllableUnit, Pr
     private static final char MAP_INFO = 0x0080;
     public static final int ID = 1;
 
+    public static int TYPE_ID = 2;
+
     private int hologram = 0;
     private String hologramString = "";
     private HologramMode hologramMode = HologramMode.CLEARED;
@@ -250,10 +252,13 @@ public class Cubot extends GameObject implements Updatable, ControllableUnit, Pr
     }
 
     @Override
-    public void sendMessage(char[] message) {
+    public boolean sendMessage(char[] message) {
 
         if (consoleMessagesBuffer.size() < CONSOLE_BUFFER_MAX_SIZE) {
             consoleMessagesBuffer.add(message);
+            return true;
+        } else {
+            return false;
         }
     }
 

Plugin Cubot/src/main/java/net/simon987/cubotplugin/CubotComPort.java

@@ -82,13 +82,15 @@ public class CubotComPort extends CpuHardware {
                         System.arraycopy(getCpu().getMemory().getWords(), x, message, 0, MESSAGE_LENGTH);
 
                         //Send it to the Programmable object
-                        ((Programmable) objects.get(0)).sendMessage(message);
-
-                        System.out.println("Sent message to " + ((Cubot) objects.get(0)).getParent().getUsername());
+                        getCpu().getRegisterSet().getRegister("B").setValue(
+                                ((Programmable) objects.get(0)).sendMessage(message) ? 1 : 0);
+                        return;
                     }
                 }
             }
 
+            getCpu().getRegisterSet().getRegister("B").setValue(0); //Failed
+
         } else if (a == COMPORT_SELF_OUT) {
 
             if (cubot.spendEnergy(1)) {
@@ -104,9 +106,12 @@ public class CubotComPort extends CpuHardware {
                     //Get MESSAGE_LENGTH-word message pointed by X
                     char[] message = new char[MESSAGE_LENGTH];
                     System.arraycopy(getCpu().getMemory().getWords(), x, message, 0, MESSAGE_LENGTH);
-                    cubot.sendMessage(message);
+                    getCpu().getRegisterSet().getRegister("B").setValue(cubot.sendMessage(message) ? 1 : 0);
+                    return;
                 }
             }
+
+            getCpu().getRegisterSet().getRegister("B").setValue(0); //Failed
         }
 
 

Plugin NPC/src/main/java/net/simon987/npcplugin/RadioTower.java

@@ -41,10 +41,13 @@ public class RadioTower extends GameObject implements Programmable, Updatable {
     }
 
     @Override
-    public void sendMessage(char[] message) {
+    public boolean sendMessage(char[] message) {
 
         if (message.length < MAX_MESSAGES) {
             messages.add(message);
+            return true;
+        } else {
+            return false;
         }
     }
 

Server/src/main/java/net/simon987/server/game/GameObject.java

@@ -68,6 +68,7 @@ public abstract class GameObject implements JSONSerialisable {
             newY = y;
         }
 
+
         //Check if out of World bounds / collision
         if (newX < 0) {
             //Move object to adjacent World (left)

Server/src/main/java/net/simon987/server/game/Programmable.java

@@ -2,6 +2,6 @@ package net.simon987.server.game;
 
 public interface Programmable {
 
-    void sendMessage(char[] message);
+    boolean sendMessage(char[] message);
 
 }