Debugger added.

src/main/java/net/nuggetmc/ai/PlayerAI.java

@@ -1,7 +1,7 @@
 package net.nuggetmc.ai;
 
-import net.nuggetmc.ai.commands.CommandHandler;
 import net.nuggetmc.ai.bot.BotManager;
+import net.nuggetmc.ai.commands.CommandHandler;
 import org.bukkit.plugin.java.JavaPlugin;
 
 public class PlayerAI extends JavaPlugin {

src/main/java/net/nuggetmc/ai/bot/Bot.java

@@ -151,7 +151,7 @@ public class Bot extends EntityPlayer {
 
         double y;
 
-        if (isOnGround()) {
+        if (groundTicks != 0) {
             velocity.setY(0);
             addFriction();
             y = 0;
@@ -289,13 +289,12 @@ public class Bot extends EntityPlayer {
     }
 
     private void kb(Location loc1, Location loc2) {
-        Vector diff = loc1.toVector().subtract(loc2.toVector()).normalize();
-        diff.multiply(0.5);
-        diff.setY(kbUp);
+        Vector diff = loc1.toVector().subtract(loc2.toVector()).normalize().setY(kbUp);
+        Vector vel = velocity.clone().add(diff).multiply(0.5);
 
-        Vector vel = velocity.clone().add(diff);
         if (vel.length() > 1) vel.normalize();
-        if (vel.getY() > kbUp) vel.setY(kbUp);
+        if (groundTicks != 0) vel.multiply(0.8).setY(0.4);
+        else if (vel.getY() > kbUp) vel.setY(kbUp);
 
         velocity = vel;
         kbTicks = 10;

src/main/java/net/nuggetmc/ai/bot/BotManager.java

@@ -27,6 +27,12 @@ public class BotManager implements Listener {
 
     private final Set<Bot> bots = new HashSet<>();
 
+    public BotManager(PlayerAI plugin) {
+        this.plugin = plugin;
+        this.agent = new BotAgent(this);
+        this.numberFormat = NumberFormat.getInstance(Locale.US);
+    }
+
     public Set<Bot> fetch() {
         return bots;
     }
@@ -35,10 +41,8 @@ public class BotManager implements Listener {
         bots.add(bot);
     }
 
-    public BotManager(PlayerAI plugin) {
-        this.plugin = plugin;
-        this.agent = new BotAgent(this);
-        this.numberFormat = NumberFormat.getInstance(Locale.US);
+    public BotAgent getAgent() {
+        return agent;
     }
 
     public void createBots(Player sender, String name, String skin, int n) {

src/main/java/net/nuggetmc/ai/bot/agent/BotAgent.java

@@ -7,6 +7,7 @@ import net.nuggetmc.ai.utils.PlayerUtils;
 import org.bukkit.Bukkit;
 import org.bukkit.Location;
 import org.bukkit.entity.Player;
+import org.bukkit.scheduler.BukkitScheduler;
 import org.bukkit.util.Vector;
 
 public class BotAgent {
@@ -14,11 +15,32 @@ public class BotAgent {
     private PlayerAI plugin;
     private BotManager manager;
 
+    private final BukkitScheduler scheduler;
+
+    private boolean enabled;
+
+    private int taskID;
+
     public BotAgent(BotManager manager) {
         this.plugin = PlayerAI.getInstance();
         this.manager = manager;
+        this.scheduler = Bukkit.getScheduler();
 
-        Bukkit.getScheduler().scheduleSyncRepeatingTask(plugin, this::tick, 0, 1);
+        setEnabled(true);
+    }
+
+    public boolean isEnabled() {
+        return enabled;
+    }
+
+    public void setEnabled(boolean b) {
+        enabled = b;
+
+        if (b) {
+            taskID = scheduler.scheduleSyncRepeatingTask(plugin, this::tick, 0, 1);
+        } else {
+            scheduler.cancelTask(taskID);
+        }
     }
 
     private void tick() {
@@ -61,7 +83,7 @@ public class BotAgent {
             vel.checkFinite();
             vel.add(bot.velocity);
         } catch (IllegalArgumentException e) {
-            vel = bot.velocity;
+            vel = new Vector(0, 0.5, 0);
         }
 
         if (vel.length() > 1) vel.normalize();

src/main/java/net/nuggetmc/ai/commands/CommandHandler.java

@@ -18,7 +18,7 @@ public class CommandHandler {
 
     public CommandHandler(PlayerAI plugin) {
         drink = (DrinkCommandService) Drink.get(plugin);
-        drink.register(new PlayerAICommand(this), "bot", "playerai", "pai", "ai", "npc", "k");
+        drink.register(new PlayerAICommand(this), "bot", "playerai", "pai", "ai", "npc");
         drink.registerCommands();
 
         help = new HashMap<>();

src/main/java/net/nuggetmc/ai/commands/CommandInstance.java

@@ -2,7 +2,7 @@ package net.nuggetmc.ai.commands;
 
 public abstract class CommandInstance {
 
-    private final CommandHandler commandHandler;
+    protected final CommandHandler commandHandler;
 
     public CommandInstance(CommandHandler commandHandler) {
         this.commandHandler = commandHandler;

src/main/java/net/nuggetmc/ai/commands/commands/PlayerAICommand.java

@@ -5,13 +5,13 @@ import com.jonahseguin.drink.annotation.OptArg;
 import com.jonahseguin.drink.annotation.Require;
 import com.jonahseguin.drink.annotation.Sender;
 import net.nuggetmc.ai.PlayerAI;
-import net.nuggetmc.ai.bot.Bot;
 import net.nuggetmc.ai.bot.BotManager;
+import net.nuggetmc.ai.bot.agent.BotAgent;
 import net.nuggetmc.ai.commands.CommandHandler;
 import net.nuggetmc.ai.commands.CommandInstance;
 import net.nuggetmc.ai.utils.ChatUtils;
+import net.nuggetmc.ai.utils.Debugger;
 import org.bukkit.ChatColor;
-import org.bukkit.Location;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
 
@@ -20,12 +20,14 @@ import java.util.Locale;
 
 public class PlayerAICommand extends CommandInstance {
 
+    private PlayerAI plugin;
     private BotManager manager;
 
     public PlayerAICommand(CommandHandler commandHandler) {
         super(commandHandler);
 
-        this.manager = PlayerAI.getInstance().getManager();
+        this.plugin = PlayerAI.getInstance();
+        this.manager = plugin.getManager();
     }
 
     @Command(name = "", desc = "The PlayerAI main command.")
@@ -34,7 +36,7 @@ public class PlayerAICommand extends CommandInstance {
         sender.sendMessage(ChatUtils.LINE);
         sender.sendMessage(ChatColor.GOLD + "PlayerAI" + ChatColor.GRAY + " [" + ChatColor.RED + "v" + PlayerAI.VERSION + ChatColor.GRAY + "]");
 
-        for (String line : getCommandHandler().getHelp(getClass())) {
+        for (String line : commandHandler.getHelp(getClass())) {
             sender.sendMessage(line);
         }
 
@@ -53,22 +55,16 @@ public class PlayerAICommand extends CommandInstance {
         manager.createBots(sender, name, skin, n);
     }
 
-    @Command(name = "debug", desc = "Debug bot stats.")
+    @Command(name = "debug", desc = "Debug plugin code.", usage = "<expression>")
     @Require("playerai.manage")
-    public void debugCommand(@Sender Player sender) {
-        // This will be used for miscellaneous code for testing as the plugin is worked on
-
-        Location loc = sender.getLocation();
-
-        for (Bot bot : PlayerAI.getInstance().getManager().fetch()) {
-            bot.faceLocation(loc);
-        }
+    public void debugCommand(@Sender CommandSender sender, String cmd) {
+        (new Debugger(sender)).execute(cmd);
     }
 
     @Command(name = "info", desc = "Information about loaded bots.")
     @Require("playerai.manage")
-    public void infoCommand(@Sender Player player) {
-        // This will be the future GUI where players can view information about every loaded bot
+    public void infoCommand(@Sender Player sender) {
+        sender.sendMessage("Bot GUI coming soon!");
     }
 
     @Command(name = "reset", desc = "Remove all loaded bots.")

src/main/java/net/nuggetmc/ai/utils/Debugger.java

@@ -0,0 +1,47 @@
+package net.nuggetmc.ai.utils;
+
+import net.nuggetmc.ai.PlayerAI;
+import net.nuggetmc.ai.bot.agent.BotAgent;
+import org.bukkit.ChatColor;
+import org.bukkit.command.CommandSender;
+
+import java.beans.Statement;
+
+public class Debugger {
+
+    private CommandSender sender;
+    private String prefix;
+
+    public Debugger(CommandSender sender) {
+        this.sender = sender;
+        this.prefix = ChatColor.YELLOW + "[DEBUG] " + ChatColor.RESET;
+    }
+
+    private void print(String msg) {
+        sender.sendMessage(msg);
+    }
+
+    public void execute(String cmd) {
+        try {
+            Statement statement = new Statement(this, cmd.replace("()", ""), new Object[]{});
+            print(prefix + "Running the expression \"" + ChatColor.AQUA + cmd + ChatColor.RESET + "\"...");
+            statement.execute();
+        }
+
+        catch (Exception e) {
+            print(prefix + "Error: the expression \"" + ChatColor.AQUA + cmd + ChatColor.RESET + "\" failed to execute.");
+            print(prefix + e.toString());
+        }
+    }
+
+    public void toggleAgent() {
+        BotAgent agent = PlayerAI.getInstance().getManager().getAgent();
+
+        boolean b = agent.isEnabled();
+        agent.setEnabled(!b);
+
+        print(prefix + "The Bot Agent is now "
+                + (b ? ChatColor.RED + "DISABLED" : ChatColor.GREEN + "ENABLED")
+                + ChatColor.RESET + ".");
+    }
+}