Newly registered users can now login on the game server,

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

@@ -1,6 +1,7 @@
 package net.simon987.cubotplugin;
 
 import net.simon987.server.game.*;
+import net.simon987.server.user.User;
 import org.json.simple.JSONObject;
 
 import java.util.ArrayList;
@@ -23,6 +24,8 @@ public class Cubot extends GameObject implements Updatable, ControllableUnit {
 
     private ArrayList<Integer> keyboardBuffer = new ArrayList<>();
 
+    private User parent;
+
     public Cubot() {
 
     }
@@ -67,6 +70,9 @@ public class Cubot extends GameObject implements Updatable, ControllableUnit {
         json.put("heldItem", heldItem);
         json.put("hp", hp);
         json.put("action", lastAction.ordinal());
+        if(parent != null){
+            json.put("parent", parent.getUsername()); //Only used client-side for now
+        }
 
         return json;
     }
@@ -80,6 +86,7 @@ public class Cubot extends GameObject implements Updatable, ControllableUnit {
         cubot.hp = (int)(long)json.get("hp");
         cubot.setDirection(Direction.getDirection((int)(long)json.get("direction")));
         cubot.heldItem = (int)(long)json.get("heldItem");
+        cubot.heldItem = (int)(long)json.get("heldItem");
 
         return cubot;
 
@@ -110,4 +117,12 @@ public class Cubot extends GameObject implements Updatable, ControllableUnit {
     public void setCurrentAction(CubotAction currentAction) {
         this.currentAction = currentAction;
     }
+
+    public User getParent() {
+        return parent;
+    }
+
+    public void setParent(User parent) {
+        this.parent = parent;
+    }
 }

Plugin Cubot/src/net/simon987/cubotplugin/event/UserCreationListener.java

@@ -7,6 +7,8 @@ import net.simon987.server.event.GameEventListener;
 import net.simon987.server.event.UserCreationEvent;
 import net.simon987.server.user.User;
 
+import java.awt.*;
+
 public class UserCreationListener implements GameEventListener {
     @Override
     public Class getListenedEventType() {
@@ -20,12 +22,18 @@ public class UserCreationListener implements GameEventListener {
 
 
         Cubot cubot = new Cubot();
+
         cubot.setWorld(GameServer.INSTANCE.getGameUniverse().getWorld(0,0));
+        cubot.getWorld().getGameObjects().add(cubot);
 
         cubot.setObjectId(GameServer.INSTANCE.getGameUniverse().getNextObjectId());
 
-        cubot.setX(6);
+        cubot.setParent(user);
-        cubot.setY(6);
+
+        Point point = cubot.getWorld().getRandomPassableTile();
+
+        cubot.setX(point.x);
+        cubot.setY(point.y);
 
         user.setControlledUnit(cubot);
 

Plugin Plant/src/net/simon987/plantplugin/event/WorldCreationListener.java

@@ -61,7 +61,7 @@ public class WorldCreationListener implements GameEventListener {
         outerLoop:
         for (int i = 0; i < treeCount; i++) {
 
-            Point p = WorldGenerator.getRandomPlainTile(world.getTileMap().getTiles());
+            Point p = world.getTileMap().getRandomPlainTile();
 
             if (p != null) {
 

Server/src/net/simon987/server/Main.java

@@ -10,9 +10,6 @@ import java.net.InetSocketAddress;
 public class Main {
     public static void main(String[] args){
 
-        //todo: User registration
-        //todo: Display usernames under cubot
-
         LogManager.initialize();
         ServerConfiguration config = new ServerConfiguration(new File("config.properties"));
 

Server/src/net/simon987/server/assembly/instruction/MulInstruction.java

@@ -18,7 +18,7 @@ public class MulInstruction extends Instruction {
     @Override
     public Status execute(Target src, int srcIndex, Status status) {
 
-        int result = (char)cpu.getRegisterSet().getRegister("A").getValue() * (char)src.get(srcIndex);
+        int result = cpu.getRegisterSet().getRegister("A").getValue() * (char)src.get(srcIndex);
 
         int hWord = Util.getHigherWord(result);
         if (hWord != 0) {

Server/src/net/simon987/server/game/ControllableUnit.java

@@ -1,5 +1,7 @@
 package net.simon987.server.game;
 
+import net.simon987.server.user.User;
+
 import java.util.ArrayList;
 
 public interface ControllableUnit {
@@ -8,6 +10,8 @@ public interface ControllableUnit {
 
     void setKeyboardBuffer(ArrayList<Integer> kbBuffer);
 
+    void setParent(User user);
+
     ArrayList<Integer> getKeyboardBuffer();
 
 }

Server/src/net/simon987/server/game/GameUniverse.java

@@ -1,6 +1,10 @@
 package net.simon987.server.game;
 
+import net.simon987.server.GameServer;
 import net.simon987.server.ServerConfiguration;
+import net.simon987.server.assembly.Assembler;
+import net.simon987.server.assembly.AssemblyResult;
+import net.simon987.server.assembly.CPU;
 import net.simon987.server.assembly.exception.CancelledException;
 import net.simon987.server.io.JSONSerialisable;
 import net.simon987.server.logging.LogManager;
@@ -82,6 +86,43 @@ public class GameUniverse implements JSONSerialisable{
         return null;
     }
 
+    public User getOrCreateUser(String username){
+        User user = getUser(username);
+
+        if(user != null) {
+            return user;
+        } else {
+
+            LogManager.LOGGER.info("Creating new User: " + username);
+
+            try {
+                user = new User();
+                user.setUsername(username);
+                user.setCpu(new CPU(GameServer.INSTANCE.getConfig(), user));
+                user.setUserCode(GameServer.INSTANCE.getConfig().getString("new_user_code"));
+
+                //Compile user code
+                AssemblyResult ar = new Assembler(user.getCpu().getInstructionSet(), user.getCpu().getRegisterSet(),
+                        GameServer.INSTANCE.getConfig()).parse(user.getUserCode());
+
+                user.getCpu().getMemory().clear();
+
+                //Write assembled code to mem
+                user.getCpu().getMemory().write((short) ar.origin, ar.bytes, ar.bytes.length);
+                user.getCpu().setCodeSegmentOffset(ar.origin);
+
+                users.add(user);
+
+                return user;
+
+            } catch (CancelledException e) {
+                e.printStackTrace();
+                return null;
+            }
+
+        }
+    }
+
     public GameObject getObject(int id) {
 
         for (World world : worlds) {

Server/src/net/simon987/server/game/TileMap.java

@@ -4,9 +4,11 @@ package net.simon987.server.game;
 import net.simon987.server.io.JSONSerialisable;
 import org.json.simple.JSONObject;
 
+import java.awt.*;
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.util.Base64;
+import java.util.Random;
 import java.util.zip.Deflater;
 import java.util.zip.DeflaterOutputStream;
 import java.util.zip.Inflater;
@@ -157,4 +159,27 @@ public class TileMap implements JSONSerialisable {
 
         return null;
     }
+
+    public Point getRandomPlainTile() {
+
+        Random random = new Random();
+
+        int counter = 0;
+        while (true) {
+            counter++;
+
+            //Prevent infinite loop
+            if (counter >= 2500) {
+                return null;
+            }
+
+            int rx = random.nextInt(World.WORLD_SIZE);
+            int ry = random.nextInt(World.WORLD_SIZE);
+
+            if (tiles[rx][ry] == TileMap.PLAIN_TILE) {
+                return new Point(rx, ry);
+            }
+        }
+
+    }
 }

Server/src/net/simon987/server/game/World.java

@@ -1,10 +1,13 @@
 package net.simon987.server.game;
 
+import net.simon987.server.game.pathfinding.Pathfinder;
 import net.simon987.server.io.JSONSerialisable;
 import org.json.simple.JSONArray;
 import org.json.simple.JSONObject;
 
+import java.awt.*;
 import java.util.ArrayList;
+import java.util.Random;
 
 public class World implements JSONSerialisable{
 
@@ -168,6 +171,42 @@ public class World implements JSONSerialisable{
 
     }
 
+    /**
+     * Get a random tile that is empty and passable
+     * The function ensures that a object spawned there will not be trapped
+     * and will be able to leave the World
+     * <br>
+     * Note: This function is quite expensive and shouldn't be used
+     * by some CpuHardware in its current state
+     *
+     * @return random non-blocked tile
+     */
+    public Point getRandomPassableTile(){
+        Random random = new Random();
+
+        int counter = 0;
+        while (true) {
+            counter++;
+
+            //Prevent infinite loop
+            if (counter >= 2500) {
+                return null;
+            }
+
+            int rx = random.nextInt(World.WORLD_SIZE);
+            int ry = random.nextInt(World.WORLD_SIZE);
+
+            if(!isTileBlocked(rx, ry)){
+
+                Object path = Pathfinder.findPath(this, rx, ry, 1,1,0);
+
+                if(path != null) {
+                    return new Point(rx, ry);
+                }
+            }
+        }
+    }
+
     /**
      * Get the list of game objects at a location
      *

Server/src/net/simon987/server/game/WorldGenerator.java

@@ -81,29 +81,6 @@ public class WorldGenerator {
 
     }
 
-    public static Point getRandomPlainTile(int[][] tiles) {
-
-        Random random = new Random();
-
-        int counter = 0;
-        while (true) {
-            counter++;
-
-            //Prevent infinite loop
-            if (counter >= 1000) {
-                return null;
-            }
-
-            int rx = random.nextInt(World.WORLD_SIZE);
-            int ry = random.nextInt(World.WORLD_SIZE);
-
-            if (tiles[rx][ry] == TileMap.PLAIN_TILE) {
-                return new Point(rx, ry);
-            }
-        }
-
-    }
-
     /**
      * Generates an empty World
      */
@@ -192,7 +169,7 @@ public class WorldGenerator {
 
         for (int i = 0; i < ironCount; i++) {
 
-            Point p = getRandomPlainTile(world.getTileMap().getTiles());
+            Point p = world.getTileMap().getRandomPlainTile();
 
             if (p != null) {
                 world.getTileMap().getTiles()[p.x][p.y] = TileMap.IRON_TILE;
@@ -200,7 +177,7 @@ public class WorldGenerator {
         }
         for (int i = 0; i < copperCount; i++) {
 
-            Point p = getRandomPlainTile(world.getTileMap().getTiles());
+            Point p = world.getTileMap().getRandomPlainTile();
 
             if (p != null) {
                 world.getTileMap().getTiles()[p.x][p.y] = TileMap.COPPER_TILE;

Server/src/net/simon987/server/user/User.java

@@ -55,6 +55,8 @@ public class User implements JSONSerialisable{
         user.username = (String)userJson.get("username");
         user.userCode = (String)userJson.get("code");
 
+        user.getControlledUnit().setParent(user);
+
         user.cpu = CPU.deserialize((JSONObject)userJson.get("cpu"), user);
 
         return user;

Server/src/net/simon987/server/webserver/SocketServer.java

@@ -62,10 +62,14 @@ public class SocketServer extends WebSocketServer {
             } else {
                 LogManager.LOGGER.info("(WS) Received message from unauthenticated user " + conn.getRemoteSocketAddress());
 
-                String username = database.validateAuthToken(message);
+                //We expect a 128 characters long token
-                User user = GameServer.INSTANCE.getGameUniverse().getUser(username);
+                if(message.length() == 128) {
+
+                    String username = database.validateAuthToken(message);
+
+                    if (username != null) {
+                        User user = GameServer.INSTANCE.getGameUniverse().getOrCreateUser(username);
 
-                if (user != null) {
                         LogManager.LOGGER.info("(WS) User was successfully authenticated: " + user.getUsername());
 
                         onlineUser.setUser(user);
@@ -76,6 +80,8 @@ public class SocketServer extends WebSocketServer {
                     } else {
                         LogManager.LOGGER.info("(WS) Unsuccessful authentication attempt " + conn.getRemoteSocketAddress());
                         conn.send("{\"t\":\"auth\", \"m\":\"failed\"}");
+                        conn.close();
+                    }
                 }
 
 

config.properties

@@ -1,13 +1,13 @@
 # MySQL username
 mysql_user=mar
-# MySQL password
+# MySQL password/
 mysql_pass=mar
 # MySQL address
 mysql_url=jdbc:mysql://localhost:3306/mar?useSSL=false
 save_interval=10
 # Web server port
 webSocket_port=8887
-webSocket_host=localhost
+webSocket_host=0.0.0.0
 # ----------------------------------------------
 
 # Length of a tick in ms
@@ -29,13 +29,11 @@ new_user_worldY = 0
 # Effect when the new user's controlled unit spawns
 new_user_effect=WARNING
 # Default user code
-new_user_code=; TODO: Add link to wiki or something here\n\
+new_user_code=; Welcome to Much Assembly required!\n\
-  .data\n\
+  ; You will find useful information on the game here: https://github.com/simon987/Much-Assembly-Required/wiki\n\
-    ; Declare data here\n\
   .text\n\
-  main:\n\
+  \t; Write code here\n\
-    ; Write code here\n\
+  \tbrk
-    brk
 # Default held item
 new_user_item=0
 # ----------------------------------------------