updates

build.gradle

@@ -8,8 +8,8 @@ version = '1.0'
 repositories {
     mavenCentral()
     maven {
-        name = "spigotmc-repo"
-        url = "https://hub.spigotmc.org/nexus/content/repositories/snapshots/"
+        name "papermc-repo"
+        url "https://repo.papermc.io/repository/maven-public/"
     }
     maven {
         name = "sonatype"
@@ -18,7 +18,7 @@ repositories {
 }
 
 dependencies {
-    compileOnly "org.spigotmc:spigot-api:1.20.1-R0.1-SNAPSHOT"
+    compileOnly "io.papermc.paper:paper-api:1.20.1-R0.1-SNAPSHOT"
     compileOnly "org.reflections:reflections:0.10.2"
     implementation "org.jetbrains:annotations:23.0.0"
 }

src/main/java/app/simplexdev/arcanumocculta/ArcanumOcculta.java

@@ -1,19 +1,22 @@
 package app.simplexdev.arcanumocculta;
 
-import app.simplexdev.arcanumocculta.api.event.ExperienceUpdateEvent;
-import org.bukkit.Bukkit;
+import app.simplexdev.arcanumocculta.command.CasterCommand;
+import app.simplexdev.arcanumocculta.command.base.CommandLoader;
 import org.bukkit.plugin.java.JavaPlugin;
 
 public class ArcanumOcculta extends JavaPlugin
 {
 
-    @Override
-    public void onEnable() {
-        ;
-    }
-
     public static ArcanumOcculta getInstance()
     {
         return JavaPlugin.getPlugin(ArcanumOcculta.class);
     }
+
+    @Override
+    public void onEnable()
+    {
+        // Registers every command contained in the package which CasterCommand is located.
+        new CommandLoader(this)
+            .register(CasterCommand.class);
+    }
 }

src/main/java/app/simplexdev/arcanumocculta/api/spell/AbstractSpell.java

@@ -36,6 +36,19 @@ public abstract class AbstractSpell implements Spell
     private final long coolDown;
     private final SplittableRandom random = new SplittableRandom();
 
+    /**
+     * Creates a new spell with the given parameters.
+     *
+     * @param name             The display name of the spell.
+     * @param id               The actual id of the spell, typically the display name in all lowercase
+     *                         separated by underscores instead of spaces.
+     * @param description      The description of the spell.
+     * @param levelRequirement The level requirement (using {@link CasterLevel}) of the spell.
+     * @param baseDamage       The base damage (using {@link Damages}) of the spell.
+     * @param effectDuration   The duration (using {@link Durations}) of the spell's effects.
+     * @param manaCost         The mana cost (using {@link ManaCosts}) of the spell.
+     * @param coolDown         The cool down of the spell in seconds.
+     */
     protected AbstractSpell(final String name, final String id,
                             final String description, final CasterLevel levelRequirement,
                             final Damages baseDamage, final Durations effectDuration,
@@ -51,6 +64,15 @@ public abstract class AbstractSpell implements Spell
         this.coolDown = coolDown;
     }
 
+    /**
+     * Creates the actual "projectile," which is just an item display entity with a velocity.
+     *
+     * @param visual   The visual of the projectile
+     * @param world    The world to spawn the projectile in
+     * @param location The location to spawn the projectile at
+     * @param velocity The velocity of the projectile
+     * @return The projectile entity
+     */
     private static ItemDisplay createProjectile(final Material visual, final World world, final Location location,
                                                 final Vector velocity)
     {
@@ -136,6 +158,9 @@ public abstract class AbstractSpell implements Spell
             && caster.getCurrentLevel().isAtLeast(this.getLevelRequirement());
     }
 
+    /**
+     * @return A singular {@link SplittableRandom} instance for this spell.
+     */
     protected SplittableRandom random()
     {
         return random;
@@ -156,6 +181,12 @@ public abstract class AbstractSpell implements Spell
         return isValid;
     }
 
+    /**
+     * Applies the contents of {@link #getSpellEffects()} to the given targets.
+     *
+     * @param targets The targets to apply the effects to
+     * @param caster  The caster who is casting the spell
+     */
     public void applyEffects(final List<Entity> targets, final Caster caster)
     {
         targets.stream()
@@ -167,16 +198,35 @@ public abstract class AbstractSpell implements Spell
                    getSpellEffects()));
     }
 
+    /**
+     * Simulates an explosion at the given location.
+     *
+     * @param location    The location to simulate the explosion at
+     * @param size        The size of the explosion
+     * @param breakBlocks Whether the explosion should break blocks or not.
+     */
     public void simulateExplosion(final Location location, final float size, boolean breakBlocks)
     {
         location.getWorld().createExplosion(location, size, true, breakBlocks);
     }
 
+    /**
+     * Creates a vector that points in the direction the caster is looking.
+     *
+     * @param caster The caster who is casting the spell
+     * @return A vector that points in the direction the caster is looking
+     */
     public Vector tracerVector(final Caster caster)
     {
         return caster.bukkit().getLocation().clone().getDirection().multiply(2);
     }
 
+    /**
+     * Gets the top most block at the caster's eye location.
+     *
+     * @param caster The caster who is casting the spell
+     * @return The top most block at the caster's eye location
+     */
     public Location topLocation(final Caster caster)
     {
         final World world = caster.bukkit().getWorld();
@@ -185,6 +235,12 @@ public abstract class AbstractSpell implements Spell
         return eyeLocation.add(0, diff, 0);
     }
 
+    /**
+     * Creates a vector that points downwards.
+     *
+     * @param caster The caster who is casting the spell
+     * @return A vector that points downwards
+     */
     public Vector meteorVector(final Caster caster)
     {
         final Location topLocation = topLocation(caster);
@@ -192,6 +248,14 @@ public abstract class AbstractSpell implements Spell
         return v.multiply(new Vector(0, -5, 0));
     }
 
+    /**
+     * Creates a projectile which fires from the caster's eye height.
+     *
+     * @param caster   The caster who is casting the spell
+     * @param visual   The visual of the projectile
+     * @param velocity The velocity of the projectile
+     * @return The projectile entity
+     */
     public Entity prepareProjectile(final Caster caster, final Material visual, final Vector velocity)
     {
         final double expMod = getLevelRequirement().getNextLevelExp();
@@ -205,6 +269,14 @@ public abstract class AbstractSpell implements Spell
         return projectile;
     }
 
+    /**
+     * Spawns a single particle with a random directional offset based on the standard gaussian distribution.
+     * This keeps the particles in a relatively straight line while giving them some minor movement.
+     *
+     * @param world    The world to spawn the particle in
+     * @param location The location to spawn the particle at
+     * @param particle The particle to spawn
+     */
     public void tracerDirectional(final World world, final Location location, final Particle particle)
     {
         world.spawnParticle(particle,
@@ -215,6 +287,16 @@ public abstract class AbstractSpell implements Spell
                             random().nextDouble(-2, 2));
     }
 
+    /**
+     * Spawns a single particle with a color based on the specified R G B values.
+     *
+     * @param world    The world to spawn the particle in
+     * @param location The location to spawn the particle at
+     * @param particle The particle to spawn
+     * @param r        The red value of the particle
+     * @param g        The green value of the particle
+     * @param b        The blue value of the particle
+     */
     public void tracerRGB(final World world, final Location location,
                           final Particle particle, final int r,
                           final int g, final int b)
@@ -222,6 +304,13 @@ public abstract class AbstractSpell implements Spell
         world.spawnParticle(particle, location, 0, r, g, b);
     }
 
+    /**
+     * Spawns a particle spiral with a radius of 2 and an incremental step of 5 at the given location.
+     *
+     * @param world    The world to spawn the particle in
+     * @param location The location to spawn the particle at
+     * @param particle The particle to spawn
+     */
     public void spiral(final World world, final Location location, final Particle particle)
     {
         final double step = 0.5;
@@ -229,14 +318,26 @@ public abstract class AbstractSpell implements Spell
         final double area = Math.PI * Math.pow(radius, 2);
         final double theta = area / step;
         final double phi = step / radius;
-        for (double i = 0; i < theta; i += phi)
+        for (double i = 0; i < 2 * Math.PI; i += step)
         {
-            final double x = radius * Math.cos(i);
-            final double z = radius * Math.sin(i);
-            world.spawnParticle(particle, location.clone().add(x, 0, z), 0);
+            final double x = theta * Math.cos(i);
+            final double y = phi * Math.sin(i);
+            world.spawnParticle(particle, location.clone().add(x, y, 0), 0);
         }
     }
 
+    /**
+     * Spawns a cloud effect using an area effect cloud.
+     * The PotionType parameter can be null if you don't want to apply a potion effect.
+     *
+     * @param world    The world to spawn the cloud in
+     * @param location The location to spawn the cloud at
+     * @param particle The particle to use for the cloud
+     * @param size     The size of the cloud
+     * @param duration The duration of the cloud
+     * @param effect   The potion effect to apply to the cloud, can be null.
+     * @return The cloud entity
+     */
     public AreaEffectCloud cloud(final World world,
                                  final Location location,
                                  final Particle particle,
@@ -259,6 +360,13 @@ public abstract class AbstractSpell implements Spell
         return cloud;
     }
 
+    /**
+     * Applies the given effects to the target.
+     *
+     * @param target  The target to apply the effects to
+     * @param caster  The caster who is casting the spell
+     * @param effects The effects to apply
+     */
     protected void applyEffectsIndividually(final LivingEntity target,
                                             final Caster caster, final SpellEffect... effects)
     {

src/main/java/app/simplexdev/arcanumocculta/command/CasterCommand.java

@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2023 Simplex Development Group
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * with the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS," WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package app.simplexdev.arcanumocculta.command;
+
+import app.simplexdev.arcanumocculta.command.base.CommandResponse;
+import app.simplexdev.arcanumocculta.command.base.Commander;
+import app.simplexdev.arcanumocculta.command.base.Completion;
+import app.simplexdev.arcanumocculta.command.base.Info;
+import app.simplexdev.arcanumocculta.command.base.Permissions;
+import org.bukkit.command.CommandSender;
+
+@Info(name = "caster", description = "Caster commands", usage = "/caster <subcommand> [args]")
+@Permissions("arcaneum.caster")
+@Completion(index = 0, args = {})
+@Completion(index = 1, args = {})
+public class CasterCommand implements Commander
+{
+    @Override
+    public CommandResponse run(CommandSender sender, String[] args)
+    {
+        return CommandResponse.of("Not implemented yet!");
+    }
+}

src/main/java/app/simplexdev/arcanumocculta/command/WandCommand.java

@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2023 Simplex Development Group
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * with the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS," WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package app.simplexdev.arcanumocculta.command;
+
+public class WandCommand
+{
+}

src/main/java/app/simplexdev/arcanumocculta/command/base/CommandDelegate.java

@@ -0,0 +1,98 @@
+/*
+ * Copyright (c) 2023 Simplex Development Group
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * with the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS," WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package app.simplexdev.arcanumocculta.command.base;
+
+import app.simplexdev.arcanumocculta.ArcanumOcculta;
+import java.util.List;
+import org.bukkit.Bukkit;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandSender;
+import org.bukkit.command.ConsoleCommandSender;
+import org.bukkit.command.PluginIdentifiableCommand;
+import org.bukkit.plugin.Plugin;
+import org.jetbrains.annotations.NotNull;
+
+final class CommandDelegate extends Command implements PluginIdentifiableCommand
+{
+    final Commander command;
+    final ArcanumOcculta plugin;
+
+    public CommandDelegate(final ArcanumOcculta plugin, final Commander command)
+    {
+        super(command.getName());
+        this.plugin = plugin;
+        this.command = command;
+        this.setLabel(command.getName());
+        this.setDescription(command.getDescription());
+        this.setUsage(command.getUsage());
+        this.setPermission(command.getPermission());
+        this.setPermissionMessage(command.getPermissionMessage());
+        this.setAliases(command.getAliasList());
+    }
+
+    @Override
+    public boolean execute(@NotNull CommandSender sender, @NotNull String commandLabel, @NotNull String[] args)
+    {
+        if (!commandLabel.equalsIgnoreCase(command.getName())
+            || !command.getAliasList().contains(commandLabel))
+            return false;
+
+        if (!command.allowConsole() && sender instanceof ConsoleCommandSender)
+        {
+            sender.sendMessage("This command cannot be executed from the console.");
+            return true;
+        }
+
+        if (!sender.hasPermission(command.getPermission()))
+        {
+            sender.sendMessage(command.getPermissionMessage());
+            return true;
+        }
+
+        final CommandResponse response = command.run(sender, args);
+
+        if (response != null && !response.isEmpty())
+        {
+            sender.sendMessage(response.getResponse());
+            Bukkit.getLogger().info(response.getResponse());
+            return true;
+        }
+
+        return true;
+    }
+
+    @NotNull
+    @Override
+    public List<String> tabComplete(@NotNull CommandSender sender, @NotNull String alias, @NotNull String[] args)
+        throws IllegalArgumentException
+    {
+        return command.getTabCompletions(args);
+    }
+
+    @NotNull
+    @Override
+    public Plugin getPlugin()
+    {
+        return this.plugin;
+    }
+}

src/main/java/app/simplexdev/arcanumocculta/command/base/CommandLoader.java

@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2023 Simplex Development Group
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * with the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS," WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package app.simplexdev.arcanumocculta.command.base;
+
+import app.simplexdev.arcanumocculta.ArcanumOcculta;
+import java.util.Objects;
+import org.bukkit.Bukkit;
+import org.reflections.Reflections;
+
+public class CommandLoader
+{
+    private final ArcanumOcculta plugin;
+
+    public CommandLoader(final ArcanumOcculta plugin)
+    {
+        this.plugin = plugin;
+    }
+
+    private void registerCommand(final Commander command)
+    {
+        final CommandDelegate delegate = new CommandDelegate(this.plugin, command);
+        Bukkit.getCommandMap().register("arcaneum", delegate);
+    }
+
+    public void register(final Class<? extends Commander> reference)
+    {
+        new Reflections(reference.getPackage().getName())
+            .getSubTypesOf(Commander.class)
+            .stream()
+            .map(c ->
+                 {
+                     try
+                     {
+                         return c.getDeclaredConstructor();
+                     }
+                     catch (ReflectiveOperationException ex)
+                     {
+                         Bukkit.getLogger().severe(ex.getMessage());
+                         return null;
+                     }
+                 })
+            .filter(Objects::nonNull)
+            .map(c ->
+                 {
+                     try
+                     {
+                         return c.newInstance();
+                     }
+                     catch (ReflectiveOperationException ex)
+                     {
+                         Bukkit.getLogger().severe(ex.getMessage());
+                         return null;
+                     }
+                 })
+            .filter(Objects::nonNull)
+            .map(Commander.class::cast)
+            .forEach(this::registerCommand);
+    }
+}

src/main/java/app/simplexdev/arcanumocculta/command/base/CommandResponse.java

@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2023 Simplex Development Group
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * with the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS," WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package app.simplexdev.arcanumocculta.command.base;
+
+public final class CommandResponse
+{
+    private final String response;
+    private final boolean isEmpty;
+
+    private CommandResponse(final String response) {
+        if (response == null) {
+            this.isEmpty = true;
+            this.response = "";
+        }
+        else {
+            this.isEmpty = false;
+            this.response = response;
+        }
+    }
+
+    private CommandResponse() {
+        this(null);
+    }
+
+    public static CommandResponse empty() {
+        return new CommandResponse();
+    }
+
+    public static CommandResponse of(final String response) {
+        return new CommandResponse(response);
+    }
+
+    public String getResponse() {
+        return response;
+    }
+
+    public boolean isEmpty() {
+        return isEmpty;
+    }
+}

src/main/java/app/simplexdev/arcanumocculta/command/base/Commander.java

@@ -0,0 +1,109 @@
+/*
+ * Copyright (c) 2023 Simplex Development Group
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * with the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS," WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package app.simplexdev.arcanumocculta.command.base;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.Stream;
+import org.bukkit.command.CommandSender;
+
+public interface Commander
+{
+    /**
+     * Runs the command.
+     *
+     * @param sender The sender of the command.
+     * @param args   The command arguments.
+     * @return A message which can be sent to both logs and the command sender.
+     * @see CommandResponse
+     */
+    CommandResponse run(final CommandSender sender, final String[] args);
+
+    default Info getInfoData()
+    {
+        return this.getClass().getDeclaredAnnotation(Info.class);
+    }
+
+    default Completion[] getCompletionData()
+    {
+        return this.getClass().getDeclaredAnnotationsByType(Completion.class);
+    }
+
+    default Permissions getPermissionData()
+    {
+        return this.getClass().getDeclaredAnnotation(Permissions.class);
+    }
+
+    default String getName()
+    {
+        return this.getInfoData().name();
+    }
+
+    default String getDescription()
+    {
+        return this.getInfoData().description();
+    }
+
+    default String getUsage()
+    {
+        return this.getInfoData().usage();
+    }
+
+    default List<String> getAliasList()
+    {
+        return List.of(getAliasArray());
+    }
+
+    default String[] getAliasArray()
+    {
+        return this.getInfoData().aliases();
+    }
+
+    default String getPermission()
+    {
+        return this.getPermissionData().permission();
+    }
+
+    default String getPermissionMessage()
+    {
+        return this.getPermissionData().permissionMessage();
+    }
+
+    default boolean allowConsole()
+    {
+        return this.getPermissionData().allowConsole();
+    }
+
+    default List<String> getTabCompletions(final String[] args)
+    {
+        final List<Completion> completions = List.of(this.getCompletionData());
+        final List<String> returnable = new ArrayList<>();
+        completions.stream()
+                   .filter(completion -> completion.index() == args.length - 1)
+                   .map(Completion::args)
+                   .flatMap(Stream::of)
+                   .filter(arg -> arg.startsWith(args[args.length - 1]))
+                   .forEach(returnable::add);
+        return returnable;
+    }
+}

src/main/java/app/simplexdev/arcanumocculta/command/base/Completion.java

@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2023 Simplex Development Group
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * with the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS," WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package app.simplexdev.arcanumocculta.command.base;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Repeatable;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Retention(RetentionPolicy.RUNTIME)
+@Target(ElementType.TYPE)
+@Repeatable(Completions.class)
+public @interface Completion
+{
+    int index();
+
+    String[] args();
+}

src/main/java/app/simplexdev/arcanumocculta/command/base/Completions.java

@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2023 Simplex Development Group
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * with the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS," WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package app.simplexdev.arcanumocculta.command.base;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Retention(RetentionPolicy.RUNTIME)
+@Target(ElementType.TYPE)
+public @interface Completions
+{
+    Completion[] value();
+}

src/main/java/app/simplexdev/arcanumocculta/command/base/Info.java

@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2023 Simplex Development Group
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * with the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS," WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package app.simplexdev.arcanumocculta.command.base;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Retention(RetentionPolicy.RUNTIME)
+@Target(ElementType.TYPE)
+public @interface Info
+{
+    String name();
+
+    String description() default "No description provided.";
+
+    String usage() default "/<command>";
+
+    String[] aliases() default {};
+}

src/main/java/app/simplexdev/arcanumocculta/command/base/Permissions.java

@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2023 Simplex Development Group
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * with the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS," WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package app.simplexdev.arcanumocculta.command.base;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Retention(RetentionPolicy.RUNTIME)
+@Target(ElementType.TYPE)
+public @interface Permissions
+{
+    String value();
+
+    String permissionMessage() default "You do not have permission to use this command!";
+
+    boolean allowConsole() default true;
+}

src/main/java/app/simplexdev/arcanumocculta/listener/PlayerListener.java

@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2023 Simplex Development Group
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * with the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS," WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package app.simplexdev.arcanumocculta.listener;
+
+import org.bukkit.event.Listener;
+
+public class PlayerListener implements Listener
+{
+
+}