start with an api

api/build.gradle

@@ -0,0 +1,34 @@
+plugins {
+    id "maven-publish"
+}
+
+dependencies {
+    compileOnly "org.spigotmc:spigot-api:1.19.4-R0.1-SNAPSHOT"
+    compileOnly "net.kyori:adventure-platform-bukkit:4.3.0"
+    compileOnly "com.github.retrooper.packetevents:spigot:2.0.0-SNAPSHOT"
+}
+
+publishing {
+    publications {
+        mavenJava(MavenPublication) {
+            from components.java
+
+            pom {
+                name.set("znpcsplus")
+                description.set("A fork of the ZNPCs plugin")
+                url.set("https://github.com/Pyrbu/ZNPCsPlus")
+            }
+        }
+    }
+    repositories {
+        maven {
+            if (properties.containsKey("DIST_USERNAME") && properties.containsKey("DIST_PASSWORD")) {
+                credentials {
+                    username properties.get("DIST_USERNAME")
+                    password properties.get("DIST_PASSWORD")
+                }
+            }
+            url = uri("https://repo.pyr.lol/releases/")
+        }
+    }
+}

api/src/main/java/lol/pyr/znpcsplus/api/Hologram.java

@@ -0,0 +1,11 @@
+package lol.pyr.znpcsplus.api;
+
+import net.kyori.adventure.text.Component;
+
+public interface Hologram {
+    void addLine(Component line);
+    Component getLine(int index);
+    void removeLine(int index);
+    void clearLines();
+    void insertLine(int index, Component line);
+}

api/src/main/java/lol/pyr/znpcsplus/api/NPCRegistry.java

@@ -0,0 +1,14 @@
+package lol.pyr.znpcsplus.api;
+
+import lol.pyr.znpcsplus.api.npc.NPC;
+
+import java.util.Collection;
+
+public interface NPCRegistry {
+    NPC get(String id);
+    Collection<? extends NPC> all();
+    NPC getByEntityId(int id);
+    Collection<String> getRegisteredIds();
+    void register(String id, NPC npc);
+    void unregister(String id);
+}

api/src/main/java/lol/pyr/znpcsplus/api/PropertyHolder.java

@@ -0,0 +1,8 @@
+package lol.pyr.znpcsplus.api;
+
+import lol.pyr.znpcsplus.api.npc.EntityProperty;
+
+public interface PropertyHolder {
+    <T> T getProperty(EntityProperty<T> key);
+    boolean hasProperty(EntityProperty<?> key);
+}

api/src/main/java/lol/pyr/znpcsplus/api/ZApi.java

@@ -0,0 +1,11 @@
+package lol.pyr.znpcsplus.api;
+
+import lol.pyr.znpcsplus.api.npc.NPC;
+import lol.pyr.znpcsplus.api.npc.NPCType;
+import lol.pyr.znpcsplus.util.ZLocation;
+import org.bukkit.World;
+
+public interface ZApi {
+    NPCRegistry getNPCRegistry();
+    NPC createNPC(World world, NPCType type, ZLocation location);
+}

api/src/main/java/lol/pyr/znpcsplus/api/ZApiProvider.java

@@ -0,0 +1,25 @@
+package lol.pyr.znpcsplus.api;
+
+public class ZApiProvider {
+    private static ZApi plugin = null;
+
+    private ZApiProvider() {
+        throw new UnsupportedOperationException();
+    }
+
+    public static ZApi get() {
+        if (plugin == null) throw new IllegalStateException(
+                "ZNPCsPlus plugin isn't enabled yet!\n" +
+                "Please add it to your plugin.yml as a depend or softdepend."
+        );
+        return plugin;
+    }
+
+    public static void register(ZApi plugin) {
+        ZApiProvider.plugin = plugin;
+    }
+
+    public static void unregister() {
+        ZApiProvider.plugin = null;
+    }
+}

api/src/main/java/lol/pyr/znpcsplus/api/npc/EntityProperty.java

@@ -1,6 +1,6 @@
-package lol.pyr.znpcsplus.entity;
+package lol.pyr.znpcsplus.api.npc;
 
-import lol.pyr.znpcsplus.skin.SkinDescriptor;
+import lol.pyr.znpcsplus.api.skin.SkinDescriptor;
 import net.kyori.adventure.text.Component;
 import net.kyori.adventure.text.format.NamedTextColor;
 

api/src/main/java/lol/pyr/znpcsplus/api/npc/NPC.java

@@ -0,0 +1,8 @@
+package lol.pyr.znpcsplus.api.npc;
+
+import lol.pyr.znpcsplus.api.Hologram;
+import lol.pyr.znpcsplus.api.PropertyHolder;
+
+public interface NPC extends PropertyHolder {
+    Hologram getHologram();
+}

api/src/main/java/lol/pyr/znpcsplus/api/npc/NPCType.java

@@ -1,10 +1,9 @@
-package lol.pyr.znpcsplus.npc;
+package lol.pyr.znpcsplus.api.npc;
 
 import com.github.retrooper.packetevents.PacketEvents;
 import com.github.retrooper.packetevents.manager.server.ServerVersion;
 import com.github.retrooper.packetevents.protocol.entity.type.EntityType;
 import com.github.retrooper.packetevents.protocol.entity.type.EntityTypes;
-import lol.pyr.znpcsplus.entity.EntityProperty;
 
 import java.util.*;
 
@@ -47,26 +46,31 @@ public class NPCType {
         return allowedProperties;
     }
 
-    private static void register(Builder builder) {
-        register(builder.build());
+    private static NPCType define(Builder builder) {
+        return define(builder.build());
     }
 
-    private static void register(NPCType type) {
+    private static NPCType define(NPCType type) {
         BY_NAME.put(type.getName(), type);
-
+        return type;
     }
 
-    static {
-        register(new Builder("player", EntityTypes.PLAYER)
-                .addProperties(EntityProperty.SKIN, EntityProperty.SKIN_LAYERS)
-                .setHologramOffset(-0.45D));
-        register(new Builder("creeper", EntityTypes.CREEPER)
-                .setHologramOffset(-0.6D));
-        register(new Builder("zombie", EntityTypes.ZOMBIE)
-                .setHologramOffset(-0.3D));
-        register(new Builder("skeleton", EntityTypes.SKELETON)
-                .setHologramOffset(-0.3D));
-    }
+    public static final NPCType PLAYER = define(
+            new Builder("player", EntityTypes.PLAYER)
+                    .addProperties(EntityProperty.SKIN, EntityProperty.SKIN_LAYERS)
+                    .setHologramOffset(-0.45D));
+
+    public static final NPCType CREEPER = define(
+            new Builder("creeper", EntityTypes.CREEPER)
+                    .setHologramOffset(-0.6D));
+
+    public static final NPCType ZOMBIE = define(
+            new Builder("zombie", EntityTypes.ZOMBIE)
+                    .setHologramOffset(-0.3D));
+
+    public static final NPCType SKELETON = define(
+            new Builder("skeleton", EntityTypes.SKELETON)
+                    .setHologramOffset(-0.3D));
 
     private static final class Builder {
         private final String name;

api/src/main/java/lol/pyr/znpcsplus/api/skin/SkinDescriptor.java

@@ -0,0 +1,4 @@
+package lol.pyr.znpcsplus.api.skin;
+
+public interface SkinDescriptor {
+}

api/src/main/java/lol/pyr/znpcsplus/util/ZLocation.java

@@ -1,19 +1,18 @@
-package lol.pyr.znpcsplus.entity;
+package lol.pyr.znpcsplus.util;
 
 import com.github.retrooper.packetevents.util.Vector3d;
 import org.bukkit.Location;
 import org.bukkit.World;
 import org.bukkit.util.NumberConversions;
-import org.bukkit.util.Vector;
 
-public class PacketLocation {
+public class ZLocation {
     private final double x;
     private final double y;
     private final double z;
     private final float yaw;
     private final float pitch;
 
-    public PacketLocation(double x, double y, double z, float yaw, float pitch) {
+    public ZLocation(double x, double y, double z, float yaw, float pitch) {
         this.x = x;
         this.y = y;
         this.z = z;
@@ -21,7 +20,7 @@ public class PacketLocation {
         this.pitch = pitch;
     }
 
-    public PacketLocation(Location location) {
+    public ZLocation(Location location) {
         this(location.getX(), location.getY(), location.getZ(), location.getYaw(), location.getPitch());
     }
 
@@ -49,12 +48,8 @@ public class PacketLocation {
         return new Location(world, this.x, this.y, this.z, this.yaw, this.pitch);
     }
 
-    public PacketLocation withY(double y) {
-        return new PacketLocation(x, y, z, yaw, pitch);
-    }
-
-    public Vector toVector() {
-        return new Vector(x, y, z);
+    public ZLocation withY(double y) {
+        return new ZLocation(x, y, z, yaw, pitch);
     }
 
     public Vector3d toVector3d() {
@@ -64,16 +59,16 @@ public class PacketLocation {
     private static final double _2PI = 2 * Math.PI;
 
     public Location lookingAt(Location loc) {
-        return lookingAt(new PacketLocation(loc)).toBukkitLocation(loc.getWorld());
+        return lookingAt(new ZLocation(loc)).toBukkitLocation(loc.getWorld());
     }
 
-    public PacketLocation lookingAt(PacketLocation loc) {
+    public ZLocation lookingAt(ZLocation loc) {
         final double x = loc.getX() - this.x;
         final double z = loc.getZ() - this.z;
         final double y = loc.getY() - this.y;
 
         if (x == 0 && z == 0) {
-            return new PacketLocation(this.x, this.y, this.z, this.yaw, y > 0 ? -90 : 90);
+            return new ZLocation(this.x, this.y, this.z, this.yaw, y > 0 ? -90 : 90);
         }
 
         double x2 = NumberConversions.square(x);
@@ -84,6 +79,6 @@ public class PacketLocation {
         float yaw = (float) Math.toDegrees((theta + _2PI) % _2PI);
         float pitch = (float) Math.toDegrees(Math.atan(-y / xz));
 
-        return new PacketLocation(this.x, this.y, this.z, yaw, pitch);
+        return new ZLocation(this.x, this.y, this.z, yaw, pitch);
     }
 }

build.gradle

@@ -1,103 +1,20 @@
-plugins {
-    id "java"
-    id "maven-publish"
-    id "com.github.johnrengelman.shadow" version "8.1.1"
-    id "xyz.jpenilla.run-paper" version "2.0.1"
-}
+subprojects {
+    apply plugin: "java"
 
-repositories {
-    mavenCentral()
-    maven {
-        url "https://hub.spigotmc.org/nexus/content/repositories/snapshots/"
+    group "lol.pyr"
+    version "1.0.5"
+
+    compileJava {
+        options.release.set(16)
     }
-    maven {
-        url "https://repo.papermc.io/repository/maven-public/"
-    }
-    maven {
-        url "https://repo.extendedclip.com/content/repositories/placeholderapi/"
-    }
-    maven {
-        url "https://repo.codemc.io/repository/maven-snapshots/"
-    }
-    maven {
-        url "https://jitpack.io/"
-    }
-}
 
-dependencies {
-    compileOnly "org.spigotmc:spigot-api:1.19.4-R0.1-SNAPSHOT"
-    compileOnly "me.clip:placeholderapi:2.11.1"
-
-    compileOnly "com.mojang:authlib:3.4.40"
-    compileOnly "com.mojang:datafixerupper:6.0.8"
-
-    implementation "commons-io:commons-io:2.11.0"
-    implementation "com.google.code.gson:gson:2.10.1"
-    implementation "org.bstats:bstats-bukkit:3.0.2"
-    implementation "com.github.robertlit:SpigotResourcesAPI:2.0"
-    implementation "net.kyori:adventure-platform-bukkit:4.3.0"
-    implementation "net.kyori:adventure-text-minimessage:4.13.1"
-    implementation "com.github.retrooper.packetevents:spigot:2.0.0-SNAPSHOT"
-    implementation "space.arim.dazzleconf:dazzleconf-ext-snakeyaml:1.2.1"
-}
-
-group "lol.pyr"
-version "1.0.5"
-
-compileJava {
-    options.release.set(17)
-}
-
-shadowJar {
-    archiveClassifier.set ""
-    relocate "org.bstats", "lol.pyr.znpcsplus.lib.bstats"
-    relocate "org.apache.commons", "lol.pyr.znpcsplus.lib.commons"
-    relocate "me.robertlit.spigotresources", "lol.pyr.znpcsplus.lib.spigotresources"
-    relocate "net.kyori", "lol.pyr.znpcsplus.lib.kyori"
-    relocate "org.checkerframework", "lol.pyr.znpcsplus.lib.checkerframework"
-    relocate "javax.annotation", "lol.pyr.znpcsplus.lib.javaxannotation"
-    relocate "com.google", "lol.pyr.znpcsplus.lib.google"
-
-    relocate "com.github.retrooper.packetevents", "lol.pyr.znpcsplus.lib.packetevents.api"
-    relocate "io.github.retrooper.packetevents", "lol.pyr.znpcsplus.lib.packetevents.impl"
-
-    relocate "org.yaml.snakeyaml", "lol.pyr.znpcsplus.lib.snakeyaml"
-    relocate "space.arim.dazzleconf", "lol.pyr.znpcsplus.lib.dazzleconf"
-    minimize()
-}
-
-processResources {
-    expand("version": version)
-}
-
-runServer {
-    minecraftVersion "1.19.4"
-}
-
-tasks.assemble.dependsOn shadowJar
-tasks.compileJava.dependsOn clean
-
-publishing {
-    publications {
-        mavenJava(MavenPublication) {
-            from components.java
-
-            pom {
-                name.set("znpcsplus")
-                description.set("A fork of the ZNPCs plugin")
-                url.set("https://github.com/Pyrbu/ZNPCsPlus")
-            }
-        }
-    }
     repositories {
+        mavenCentral()
         maven {
-            if (properties.containsKey("DIST_USERNAME") && properties.containsKey("DIST_PASSWORD")) {
-                credentials {
-                    username properties.get("DIST_USERNAME")
-                    password properties.get("DIST_PASSWORD")
-                }
-            }
-            url = uri("https://repo.pyr.lol/releases/")
+            url "https://hub.spigotmc.org/nexus/content/repositories/snapshots/"
+        }
+        maven {
+            url "https://repo.codemc.io/repository/maven-snapshots/"
         }
     }
 }

plugin/build.gradle

@@ -0,0 +1,64 @@
+plugins {
+    id "com.github.johnrengelman.shadow" version "8.1.1"
+    id "xyz.jpenilla.run-paper" version "2.0.1"
+}
+
+repositories {
+    maven {
+        url "https://repo.extendedclip.com/content/repositories/placeholderapi/"
+    }
+    maven {
+        url "https://jitpack.io/"
+    }
+    maven {
+        url "https://repo.papermc.io/repository/maven-public/"
+    }
+}
+
+dependencies {
+    compileOnly "org.spigotmc:spigot-api:1.19.4-R0.1-SNAPSHOT"
+    compileOnly "me.clip:placeholderapi:2.11.1"
+
+    compileOnly "com.mojang:authlib:3.4.40"
+    compileOnly "com.mojang:datafixerupper:4.0.26"
+
+    implementation "commons-io:commons-io:2.11.0"
+    implementation "com.google.code.gson:gson:2.10.1"
+    implementation "org.bstats:bstats-bukkit:3.0.2"
+    implementation "com.github.robertlit:SpigotResourcesAPI:2.0"
+    implementation "net.kyori:adventure-platform-bukkit:4.3.0"
+    implementation "net.kyori:adventure-text-minimessage:4.13.1"
+    implementation "com.github.retrooper.packetevents:spigot:2.0.0-SNAPSHOT"
+    implementation "space.arim.dazzleconf:dazzleconf-ext-snakeyaml:1.2.1"
+
+    implementation project(":api")
+}
+
+shadowJar {
+    archiveClassifier.set ""
+    relocate "org.bstats", "lol.pyr.znpcsplus.lib.bstats"
+    relocate "org.apache.commons", "lol.pyr.znpcsplus.lib.commons"
+    relocate "me.robertlit.spigotresources", "lol.pyr.znpcsplus.lib.spigotresources"
+    relocate "net.kyori", "lol.pyr.znpcsplus.lib.kyori"
+    relocate "org.checkerframework", "lol.pyr.znpcsplus.lib.checkerframework"
+    relocate "javax.annotation", "lol.pyr.znpcsplus.lib.javaxannotation"
+    relocate "com.google", "lol.pyr.znpcsplus.lib.google"
+
+    relocate "com.github.retrooper.packetevents", "lol.pyr.znpcsplus.lib.packetevents.api"
+    relocate "io.github.retrooper.packetevents", "lol.pyr.znpcsplus.lib.packetevents.impl"
+
+    relocate "org.yaml.snakeyaml", "lol.pyr.znpcsplus.lib.snakeyaml"
+    relocate "space.arim.dazzleconf", "lol.pyr.znpcsplus.lib.dazzleconf"
+    minimize()
+}
+
+processResources {
+    expand("version": version)
+}
+
+runServer {
+    minecraftVersion "1.19.4"
+}
+
+tasks.assemble.dependsOn shadowJar
+tasks.compileJava.dependsOn clean

plugin/src/main/java/lol/pyr/znpcsplus/ZNPCsApi.java

@@ -0,0 +1,20 @@
+package lol.pyr.znpcsplus;
+
+import lol.pyr.znpcsplus.api.ZApi;
+import lol.pyr.znpcsplus.api.NPCRegistry;
+import lol.pyr.znpcsplus.api.npc.NPC;
+import lol.pyr.znpcsplus.api.npc.NPCType;
+import lol.pyr.znpcsplus.util.ZLocation;
+import org.bukkit.World;
+
+public class ZNPCsApi implements ZApi {
+    @Override
+    public NPCRegistry getNPCRegistry() {
+        return lol.pyr.znpcsplus.npc.NPCRegistry.get();
+    }
+
+    @Override
+    public NPC createNPC(World world, NPCType type, ZLocation location) {
+        return new lol.pyr.znpcsplus.npc.NPC(world, type, location);
+    }
+}

plugin/src/main/java/lol/pyr/znpcsplus/ZNPCsPlus.java

@@ -7,15 +7,15 @@ import io.github.retrooper.packetevents.factory.spigot.SpigotPacketEventsBuilder
 import io.github.znetworkw.znpcservers.listeners.InventoryListener;
 import io.github.znetworkw.znpcservers.utility.BungeeUtils;
 import io.github.znetworkw.znpcservers.utility.SchedulerUtils;
+import lol.pyr.znpcsplus.api.ZApiProvider;
+import lol.pyr.znpcsplus.api.npc.EntityProperty;
+import lol.pyr.znpcsplus.api.npc.NPCType;
 import lol.pyr.znpcsplus.config.Configs;
-import lol.pyr.znpcsplus.entity.EntityProperty;
-import lol.pyr.znpcsplus.entity.PacketLocation;
 import lol.pyr.znpcsplus.interaction.InteractionPacketListener;
 import lol.pyr.znpcsplus.interaction.types.ConsoleCommandAction;
 import lol.pyr.znpcsplus.interaction.types.MessageAction;
 import lol.pyr.znpcsplus.npc.NPC;
 import lol.pyr.znpcsplus.npc.NPCRegistry;
-import lol.pyr.znpcsplus.npc.NPCType;
 import lol.pyr.znpcsplus.skin.cache.SkinCache;
 import lol.pyr.znpcsplus.skin.cache.SkinCacheCleanTask;
 import lol.pyr.znpcsplus.skin.descriptor.FetchingDescriptor;
@@ -26,6 +26,7 @@ import lol.pyr.znpcsplus.updater.UpdateChecker;
 import lol.pyr.znpcsplus.updater.UpdateNotificationListener;
 import lol.pyr.znpcsplus.user.User;
 import lol.pyr.znpcsplus.user.UserListener;
+import lol.pyr.znpcsplus.util.ZLocation;
 import net.kyori.adventure.platform.bukkit.BukkitAudiences;
 import net.kyori.adventure.text.Component;
 import net.kyori.adventure.text.format.NamedTextColor;
@@ -126,6 +127,7 @@ public class ZNPCsPlus extends JavaPlugin {
         new UserListener(this);
         if (Configs.config().checkForUpdates()) new UpdateNotificationListener(this, new UpdateChecker(this));
 
+        ZApiProvider.register(new ZNPCsApi());
         enabled = true;
         log(ChatColor.WHITE + " * Loading complete! (" + (System.currentTimeMillis() - before) + "ms)");
         log("");
@@ -137,7 +139,7 @@ public class ZNPCsPlus extends JavaPlugin {
             World world = Bukkit.getWorld("world");
             if (world == null) world = Bukkit.getWorlds().get(0);
             for (NPCType type : NPCType.values()) {
-                NPC npc = new NPC(world, type, new PacketLocation(x * 3, 200, z * 3, 0, 0));
+                NPC npc = new NPC(world, type, new ZLocation(x * 3, 200, z * 3, 0, 0));
                 if (type.getType() == EntityTypes.PLAYER) {
                     SkinCache.fetchByName("Notch").thenAccept(skin -> npc.setProperty(EntityProperty.SKIN, new PrefetchedDescriptor(skin)));
                     npc.setProperty(EntityProperty.INVISIBLE, true);
@@ -145,27 +147,28 @@ public class ZNPCsPlus extends JavaPlugin {
                 npc.setProperty(EntityProperty.GLOW, NamedTextColor.RED);
                 // npc.setProperty(EntityProperty.FIRE, true);
                 npc.getHologram().addLine(Component.text("Hello, World!"));
-                NPCRegistry.register("debug_npc" + (z * wrap + x), npc);
+                NPCRegistry.get().register("debug_npc" + (z * wrap + x), npc);
                 if (x++ > wrap) {
                     x = 0;
                     z++;
                 }
             }
-            NPC npc = new NPC(world, NPCType.byName("player"), new PacketLocation(x * 3, 200, z * 3, 0, 0));
+            NPC npc = new NPC(world, NPCType.byName("player"), new ZLocation(x * 3, 200, z * 3, 0, 0));
             npc.setProperty(EntityProperty.SKIN, new FetchingDescriptor("jeb_"));
             npc.addAction(new MessageAction(1000L, "<red>Hi, I'm jeb!"));
-            NPCRegistry.register("debug_npc" + (z * wrap + x), npc);
+            NPCRegistry.get().register("debug_npc" + (z * wrap + x), npc);
             x++;
-            npc = new NPC(world, NPCType.byName("player"), new PacketLocation(x * 3, 200, z * 3, 0, 0));
+            npc = new NPC(world, NPCType.byName("player"), new ZLocation(x * 3, 200, z * 3, 0, 0));
             npc.setProperty(EntityProperty.SKIN, new MirrorDescriptor());
             npc.addAction(new ConsoleCommandAction(1000L, "kick {player}"));
-            NPCRegistry.register("debug_npc" + (z * wrap + x), npc);
+            NPCRegistry.get().register("debug_npc" + (z * wrap + x), npc);
         }
     }
 
     @Override
     public void onDisable() {
         if (!enabled) return;
+        ZApiProvider.unregister();
         Bukkit.getOnlinePlayers().forEach(User::remove);
         ADVENTURE.close();
         ADVENTURE = null;

plugin/src/main/java/lol/pyr/znpcsplus/entity/PacketEntity.java

@@ -4,7 +4,9 @@ import com.github.retrooper.packetevents.protocol.entity.type.EntityType;
 import com.github.retrooper.packetevents.protocol.entity.type.EntityTypes;
 import io.github.znetworkw.znpcservers.reflection.Reflections;
 import io.github.znetworkw.znpcservers.utility.Utils;
+import lol.pyr.znpcsplus.api.PropertyHolder;
 import lol.pyr.znpcsplus.packets.PacketFactory;
+import lol.pyr.znpcsplus.util.ZLocation;
 import org.bukkit.entity.Player;
 
 import java.util.Collection;
@@ -16,9 +18,9 @@ public class PacketEntity {
     private final UUID uuid;
 
     private final EntityType type;
-    private PacketLocation location;
+    private ZLocation location;
 
-    public PacketEntity(PropertyHolder properties, EntityType type, PacketLocation location) {
+    public PacketEntity(PropertyHolder properties, EntityType type, ZLocation location) {
         this.properties = properties;
         this.entityId = reserveEntityID();
         this.uuid = UUID.randomUUID();
@@ -30,7 +32,7 @@ public class PacketEntity {
         return entityId;
     }
 
-    public PacketLocation getLocation() {
+    public ZLocation getLocation() {
         return location;
     }
 
@@ -42,7 +44,7 @@ public class PacketEntity {
         return type;
     }
 
-    public void setLocation(PacketLocation location, Collection<Player> viewers) {
+    public void setLocation(ZLocation location, Collection<Player> viewers) {
         this.location = location;
         for (Player viewer : viewers) PacketFactory.get().teleportEntity(viewer, this);
     }

plugin/src/main/java/lol/pyr/znpcsplus/hologram/Hologram.java

@@ -1,7 +1,7 @@
 package lol.pyr.znpcsplus.hologram;
 
 import lol.pyr.znpcsplus.config.Configs;
-import lol.pyr.znpcsplus.entity.PacketLocation;
+import lol.pyr.znpcsplus.util.ZLocation;
 import lol.pyr.znpcsplus.util.Viewable;
 import net.kyori.adventure.text.Component;
 import org.bukkit.entity.Player;
@@ -10,11 +10,11 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.Set;
 
-public class Hologram extends Viewable {
-    private PacketLocation location;
+public class Hologram extends Viewable implements lol.pyr.znpcsplus.api.Hologram {
+    private ZLocation location;
     private final List<HologramLine> lines = new ArrayList<>();
 
-    public Hologram(PacketLocation location) {
+    public Hologram(ZLocation location) {
         this.location = location;
     }
 
@@ -25,8 +25,8 @@ public class Hologram extends Viewable {
         for (Player viewer : getViewers()) newLine.show(viewer.getPlayer());
     }
 
-    public HologramLine getLine(int index) {
-        return lines.get(index);
+    public Component getLine(int index) {
+        return lines.get(index).getText();
     }
 
     public void removeLine(int index) {
@@ -57,7 +57,7 @@ public class Hologram extends Viewable {
         for (HologramLine line : lines) line.hide(player);
     }
 
-    public void setLocation(PacketLocation location) {
+    public void setLocation(ZLocation location) {
         this.location = location;
         relocateLines();
     }

plugin/src/main/java/lol/pyr/znpcsplus/hologram/HologramLine.java

@@ -1,10 +1,10 @@
 package lol.pyr.znpcsplus.hologram;
 
 import com.github.retrooper.packetevents.protocol.entity.type.EntityTypes;
-import lol.pyr.znpcsplus.entity.EntityProperty;
+import lol.pyr.znpcsplus.api.PropertyHolder;
+import lol.pyr.znpcsplus.api.npc.EntityProperty;
 import lol.pyr.znpcsplus.entity.PacketEntity;
-import lol.pyr.znpcsplus.entity.PacketLocation;
-import lol.pyr.znpcsplus.entity.PropertyHolder;
+import lol.pyr.znpcsplus.util.ZLocation;
 import net.kyori.adventure.text.Component;
 import org.bukkit.entity.Player;
 
@@ -14,7 +14,7 @@ public class HologramLine implements PropertyHolder {
     private Component text;
     private final PacketEntity armorStand;
 
-    public HologramLine(PacketLocation location, Component text) {
+    public HologramLine(ZLocation location, Component text) {
         this.text = text;
         armorStand = new PacketEntity(this, EntityTypes.ARMOR_STAND, location);
     }
@@ -35,20 +35,20 @@ public class HologramLine implements PropertyHolder {
         armorStand.despawn(player);
     }
 
-    public void setLocation(PacketLocation location, Collection<Player> viewers) {
+    public void setLocation(ZLocation location, Collection<Player> viewers) {
         armorStand.setLocation(location, viewers);
     }
 
     @SuppressWarnings("unchecked")
     @Override
     public <T> T getProperty(EntityProperty<T> key) {
-        if (key == EntityProperty.INVISIBLE) return (T) Boolean.TRUE;
-        if (key == EntityProperty.NAME) return (T) text;
+        if (key == lol.pyr.znpcsplus.api.npc.EntityProperty.INVISIBLE) return (T) Boolean.TRUE;
+        if (key == lol.pyr.znpcsplus.api.npc.EntityProperty.NAME) return (T) text;
         return key.getDefaultValue();
     }
 
     @Override
     public boolean hasProperty(EntityProperty<?> key) {
-        return key == EntityProperty.NAME || key == EntityProperty.INVISIBLE;
+        return key == lol.pyr.znpcsplus.api.npc.EntityProperty.NAME || key == lol.pyr.znpcsplus.api.npc.EntityProperty.INVISIBLE;
     }
 }

plugin/src/main/java/lol/pyr/znpcsplus/interaction/InteractionPacketListener.java

@@ -20,7 +20,7 @@ public class InteractionPacketListener implements PacketListener {
         User user = User.get(player);
         if (!user.canInteract()) return;
 
-        NPC npc = NPCRegistry.getByEntityId(packet.getEntityId());
+        NPC npc = NPCRegistry.get().getByEntityId(packet.getEntityId());
         if (npc == null) return;
 
         ZNPCsPlus.SCHEDULER.runNextTick(() -> {

plugin/src/main/java/lol/pyr/znpcsplus/npc/NPC.java

@@ -1,32 +1,32 @@
 package lol.pyr.znpcsplus.npc;
 
-import lol.pyr.znpcsplus.entity.EntityProperty;
+import lol.pyr.znpcsplus.api.npc.EntityProperty;
+import lol.pyr.znpcsplus.api.npc.NPCType;
 import lol.pyr.znpcsplus.entity.PacketEntity;
-import lol.pyr.znpcsplus.entity.PacketLocation;
-import lol.pyr.znpcsplus.entity.PropertyHolder;
 import lol.pyr.znpcsplus.hologram.Hologram;
 import lol.pyr.znpcsplus.interaction.NPCAction;
 import lol.pyr.znpcsplus.util.Viewable;
+import lol.pyr.znpcsplus.util.ZLocation;
 import org.bukkit.Bukkit;
 import org.bukkit.World;
 import org.bukkit.entity.Player;
 
 import java.util.*;
 
-public class NPC extends Viewable implements PropertyHolder {
+public class NPC extends Viewable implements lol.pyr.znpcsplus.api.npc.NPC {
     protected static final Set<NPC> _ALL_NPCS = new HashSet<>();
 
     private final Set<Player> viewers = new HashSet<>();
     private final String worldName;
     private PacketEntity entity;
-    private PacketLocation location;
+    private ZLocation location;
     private NPCType type;
     private final Hologram hologram;
 
     private final Map<EntityProperty<?>, Object> propertyMap = new HashMap<>();
     private final Set<NPCAction> actions = new HashSet<>();
 
-    public NPC(World world, NPCType type, PacketLocation location) {
+    public NPC(World world, NPCType type, ZLocation location) {
         this.worldName = world.getName();
         this.type = type;
         this.location = location;
@@ -50,11 +50,11 @@ public class NPC extends Viewable implements PropertyHolder {
         return entity;
     }
 
-    public PacketLocation getLocation() {
+    public ZLocation getLocation() {
         return location;
     }
 
-    public void setLocation(PacketLocation location) {
+    public void setLocation(ZLocation location) {
         this.location = location;
         entity.setLocation(location, viewers);
         hologram.setLocation(location.withY(location.getY() + type.getHologramOffset()));

plugin/src/main/java/lol/pyr/znpcsplus/npc/NPCRegistry.java

@@ -0,0 +1,46 @@
+package lol.pyr.znpcsplus.npc;
+
+import lol.pyr.znpcsplus.api.npc.NPC;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
+
+public class NPCRegistry implements lol.pyr.znpcsplus.api.NPCRegistry {
+    private final static NPCRegistry registry = new NPCRegistry();
+
+    public static NPCRegistry get() {
+        return registry;
+    }
+
+    private final Map<String, NPC> npcMap = new HashMap<>();
+
+    private NPCRegistry() {
+        if (registry != null) throw new UnsupportedOperationException("This class can only be instanciated once!");
+    }
+
+    public NPC get(String id) {
+        return npcMap.get(id);
+    }
+
+    public Collection<lol.pyr.znpcsplus.npc.NPC> all() {
+        return Collections.unmodifiableSet(lol.pyr.znpcsplus.npc.NPC._ALL_NPCS);
+    }
+
+    public lol.pyr.znpcsplus.npc.NPC getByEntityId(int id) {
+        return all().stream().filter(npc -> npc.getEntity().getEntityId() == id).findFirst().orElse(null);
+    }
+
+    public Collection<String> getRegisteredIds() {
+        return Collections.unmodifiableSet(npcMap.keySet());
+    }
+
+    public void register(String id, NPC npc) {
+        npcMap.put(id, npc);
+    }
+
+    public void unregister(String id) {
+        npcMap.remove(id);
+    }
+}

plugin/src/main/java/lol/pyr/znpcsplus/packets/PacketFactory.java

@@ -5,7 +5,7 @@ import com.github.retrooper.packetevents.manager.server.ServerVersion;
 import com.github.retrooper.packetevents.protocol.entity.data.EntityData;
 import lol.pyr.znpcsplus.ZNPCsPlus;
 import lol.pyr.znpcsplus.entity.PacketEntity;
-import lol.pyr.znpcsplus.entity.PropertyHolder;
+import lol.pyr.znpcsplus.api.PropertyHolder;
 import lol.pyr.znpcsplus.util.LazyLoader;
 import org.bukkit.entity.Player;
 

plugin/src/main/java/lol/pyr/znpcsplus/packets/V1_14Factory.java

@@ -2,9 +2,9 @@ package lol.pyr.znpcsplus.packets;
 
 import com.github.retrooper.packetevents.wrapper.play.server.WrapperPlayServerSpawnEntity;
 import lol.pyr.znpcsplus.entity.PacketEntity;
-import lol.pyr.znpcsplus.entity.PacketLocation;
-import lol.pyr.znpcsplus.entity.EntityProperty;
-import lol.pyr.znpcsplus.entity.PropertyHolder;
+import lol.pyr.znpcsplus.util.ZLocation;
+import lol.pyr.znpcsplus.api.npc.EntityProperty;
+import lol.pyr.znpcsplus.api.PropertyHolder;
 import org.bukkit.entity.Player;
 
 import java.util.Optional;
@@ -12,7 +12,7 @@ import java.util.Optional;
 public class V1_14Factory extends V1_9Factory {
     @Override
     public void spawnEntity(Player player, PacketEntity entity, PropertyHolder properties) {
-        PacketLocation location = entity.getLocation();
+        ZLocation location = entity.getLocation();
         sendPacket(player, new WrapperPlayServerSpawnEntity(entity.getEntityId(), Optional.of(entity.getUuid()), entity.getType(),
                 location.toVector3d(), location.getPitch(), location.getYaw(), location.getYaw(), 0, Optional.empty()));
         if (properties.hasProperty(EntityProperty.GLOW)) createTeam(player, entity, properties);

plugin/src/main/java/lol/pyr/znpcsplus/packets/V1_19Factory.java

@@ -6,7 +6,7 @@ import com.github.retrooper.packetevents.protocol.player.UserProfile;
 import com.github.retrooper.packetevents.wrapper.play.server.WrapperPlayServerPlayerInfoRemove;
 import com.github.retrooper.packetevents.wrapper.play.server.WrapperPlayServerPlayerInfoUpdate;
 import lol.pyr.znpcsplus.entity.PacketEntity;
-import lol.pyr.znpcsplus.entity.PropertyHolder;
+import lol.pyr.znpcsplus.api.PropertyHolder;
 import net.kyori.adventure.text.Component;
 import org.bukkit.entity.Player;
 

plugin/src/main/java/lol/pyr/znpcsplus/packets/V1_8Factory.java

@@ -11,12 +11,12 @@ import com.github.retrooper.packetevents.util.Vector3d;
 import com.github.retrooper.packetevents.wrapper.PacketWrapper;
 import com.github.retrooper.packetevents.wrapper.play.server.*;
 import lol.pyr.znpcsplus.ZNPCsPlus;
+import lol.pyr.znpcsplus.api.PropertyHolder;
+import lol.pyr.znpcsplus.api.npc.EntityProperty;
 import lol.pyr.znpcsplus.entity.PacketEntity;
-import lol.pyr.znpcsplus.entity.PacketLocation;
 import lol.pyr.znpcsplus.metadata.MetadataFactory;
-import lol.pyr.znpcsplus.entity.EntityProperty;
-import lol.pyr.znpcsplus.entity.PropertyHolder;
-import lol.pyr.znpcsplus.skin.SkinDescriptor;
+import lol.pyr.znpcsplus.skin.BaseSkinDescriptor;
+import lol.pyr.znpcsplus.util.ZLocation;
 import net.kyori.adventure.text.Component;
 import net.kyori.adventure.text.format.NamedTextColor;
 import org.bukkit.entity.Player;
@@ -31,7 +31,7 @@ public class V1_8Factory implements PacketFactory {
     public void spawnPlayer(Player player, PacketEntity entity, PropertyHolder properties) {
         addTabPlayer(player, entity, properties).thenAccept(ignored -> {
             createTeam(player, entity, properties);
-            PacketLocation location = entity.getLocation();
+            ZLocation location = entity.getLocation();
             sendPacket(player, new WrapperPlayServerSpawnPlayer(entity.getEntityId(),
                     entity.getUuid(), location.toVector3d(), location.getYaw(), location.getPitch(), List.of()));
             sendAllMetadata(player, entity, properties);
@@ -41,7 +41,7 @@ public class V1_8Factory implements PacketFactory {
 
     @Override
     public void spawnEntity(Player player, PacketEntity entity, PropertyHolder properties) {
-        PacketLocation location = entity.getLocation();
+        ZLocation location = entity.getLocation();
         EntityType type = entity.getType();
         ClientVersion clientVersion = PacketEvents.getAPI().getServerManager().getVersion().toClientVersion();
         sendPacket(player, type.getLegacyId(clientVersion) == -1 ?
@@ -60,7 +60,7 @@ public class V1_8Factory implements PacketFactory {
 
     @Override
     public void teleportEntity(Player player, PacketEntity entity) {
-        PacketLocation location = entity.getLocation();
+        ZLocation location = entity.getLocation();
         sendPacket(player, new WrapperPlayServerEntityTeleport(entity.getEntityId(),
                 location.toVector3d(), location.getYaw(), location.getPitch(), true));
     }
@@ -127,7 +127,7 @@ public class V1_8Factory implements PacketFactory {
 
     protected CompletableFuture<UserProfile> skinned(Player player, PropertyHolder properties, UserProfile profile) {
         if (!properties.hasProperty(EntityProperty.SKIN)) return CompletableFuture.completedFuture(profile);
-        SkinDescriptor descriptor = properties.getProperty(EntityProperty.SKIN);
+        BaseSkinDescriptor descriptor = (BaseSkinDescriptor) properties.getProperty(EntityProperty.SKIN);
         if (descriptor.supportsInstant(player)) {
             descriptor.fetchInstant(player).apply(profile);
             return CompletableFuture.completedFuture(profile);

plugin/src/main/java/lol/pyr/znpcsplus/packets/V1_9Factory.java

@@ -4,8 +4,8 @@ import com.github.retrooper.packetevents.protocol.entity.data.EntityData;
 import com.github.retrooper.packetevents.protocol.entity.type.EntityTypes;
 import lol.pyr.znpcsplus.entity.PacketEntity;
 import lol.pyr.znpcsplus.metadata.MetadataFactory;
-import lol.pyr.znpcsplus.entity.EntityProperty;
-import lol.pyr.znpcsplus.entity.PropertyHolder;
+import lol.pyr.znpcsplus.api.npc.EntityProperty;
+import lol.pyr.znpcsplus.api.PropertyHolder;
 import org.bukkit.entity.Player;
 
 import java.util.ArrayList;

plugin/src/main/java/lol/pyr/znpcsplus/skin/BaseSkinDescriptor.java

@@ -4,7 +4,7 @@ import org.bukkit.entity.Player;
 
 import java.util.concurrent.CompletableFuture;
 
-public interface SkinDescriptor {
+public interface BaseSkinDescriptor {
     CompletableFuture<Skin> fetch(Player player);
     Skin fetchInstant(Player player);
     boolean supportsInstant(Player player);

plugin/src/main/java/lol/pyr/znpcsplus/skin/cache/SkinCache.java

@@ -22,11 +22,11 @@ import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.ConcurrentHashMap;
 
 public class SkinCache {
-    private final static Map<String, Skin> cache = new ConcurrentHashMap<>();
+    private final static Map<String, lol.pyr.znpcsplus.skin.Skin> cache = new ConcurrentHashMap<>();
     private final static Map<String, CachedId> idCache = new ConcurrentHashMap<>();
 
     public static void cleanCache() {
-        for (Map.Entry<String, Skin> entry : cache.entrySet()) if (entry.getValue().isExpired()) cache.remove(entry.getKey());
+        for (Map.Entry<String, lol.pyr.znpcsplus.skin.Skin> entry : cache.entrySet()) if (entry.getValue().isExpired()) cache.remove(entry.getKey());
         for (Map.Entry<String, CachedId> entry : idCache.entrySet()) if (entry.getValue().isExpired()) cache.remove(entry.getKey());
     }
 
@@ -68,16 +68,16 @@ public class SkinCache {
         if (!idCache.containsKey(name)) return false;
         CachedId id = idCache.get(name);
         if (id.isExpired() || !cache.containsKey(id.getId())) return false;
-        Skin skin = cache.get(id.getId());
+        lol.pyr.znpcsplus.skin.Skin skin = cache.get(id.getId());
         return !skin.isExpired();
     }
 
-    public static Skin getFullyCachedByName(String s) {
+    public static lol.pyr.znpcsplus.skin.Skin getFullyCachedByName(String s) {
         String name = s.toLowerCase();
         if (!idCache.containsKey(name)) return null;
         CachedId id = idCache.get(name);
         if (id.isExpired() || !cache.containsKey(id.getId())) return null;
-        Skin skin = cache.get(id.getId());
+        lol.pyr.znpcsplus.skin.Skin skin = cache.get(id.getId());
         if (skin.isExpired()) return null;
         return skin;
     }
@@ -87,7 +87,7 @@ public class SkinCache {
         if (player != null && player.isOnline()) return CompletableFuture.completedFuture(getFromPlayer(player));
 
         if (cache.containsKey(uuid)) {
-            Skin skin = cache.get(uuid);
+            lol.pyr.znpcsplus.skin.Skin skin = cache.get(uuid);
             if (!skin.isExpired()) return CompletableFuture.completedFuture(skin);
         }
 
@@ -98,7 +98,7 @@ public class SkinCache {
                 connection = (HttpURLConnection) url.openConnection();
                 connection.setRequestMethod("GET");
                 try (Reader reader = new InputStreamReader(connection.getInputStream(), StandardCharsets.UTF_8)) {
-                    Skin skin = new Skin(JsonParser.parseReader(reader).getAsJsonObject());
+                    lol.pyr.znpcsplus.skin.Skin skin = new lol.pyr.znpcsplus.skin.Skin(JsonParser.parseReader(reader).getAsJsonObject());
                     cache.put(uuid, skin);
                     return skin;
                 }
@@ -115,7 +115,7 @@ public class SkinCache {
         try {
             Object playerHandle = Reflections.GET_HANDLE_PLAYER_METHOD.get().invoke(player);
             GameProfile gameProfile = (GameProfile) Reflections.GET_PROFILE_METHOD.get().invoke(playerHandle, new Object[0]);
-            return new Skin(gameProfile.getProperties());
+            return new lol.pyr.znpcsplus.skin.Skin(gameProfile.getProperties());
         } catch (IllegalAccessException | InvocationTargetException e) {
             throw new RuntimeException(e);
         }

plugin/src/main/java/lol/pyr/znpcsplus/skin/descriptor/FetchingDescriptor.java

@@ -1,15 +1,16 @@
 package lol.pyr.znpcsplus.skin.descriptor;
 
 import lol.pyr.znpcsplus.ZNPCsPlus;
+import lol.pyr.znpcsplus.api.skin.SkinDescriptor;
+import lol.pyr.znpcsplus.skin.BaseSkinDescriptor;
 import lol.pyr.znpcsplus.skin.Skin;
-import lol.pyr.znpcsplus.skin.SkinDescriptor;
 import lol.pyr.znpcsplus.skin.cache.SkinCache;
 import me.clip.placeholderapi.PlaceholderAPI;
 import org.bukkit.entity.Player;
 
 import java.util.concurrent.CompletableFuture;
 
-public class FetchingDescriptor implements SkinDescriptor {
+public class FetchingDescriptor implements BaseSkinDescriptor, SkinDescriptor {
     private final String name;
 
     public FetchingDescriptor(String name) {

plugin/src/main/java/lol/pyr/znpcsplus/skin/descriptor/MirrorDescriptor.java

@@ -1,13 +1,14 @@
 package lol.pyr.znpcsplus.skin.descriptor;
 
+import lol.pyr.znpcsplus.api.skin.SkinDescriptor;
+import lol.pyr.znpcsplus.skin.BaseSkinDescriptor;
 import lol.pyr.znpcsplus.skin.Skin;
-import lol.pyr.znpcsplus.skin.SkinDescriptor;
 import lol.pyr.znpcsplus.skin.cache.SkinCache;
 import org.bukkit.entity.Player;
 
 import java.util.concurrent.CompletableFuture;
 
-public class MirrorDescriptor implements SkinDescriptor {
+public class MirrorDescriptor implements BaseSkinDescriptor, SkinDescriptor {
 
     public MirrorDescriptor() {}
 

plugin/src/main/java/lol/pyr/znpcsplus/skin/descriptor/PrefetchedDescriptor.java

@@ -1,12 +1,13 @@
 package lol.pyr.znpcsplus.skin.descriptor;
 
+import lol.pyr.znpcsplus.api.skin.SkinDescriptor;
+import lol.pyr.znpcsplus.skin.BaseSkinDescriptor;
 import lol.pyr.znpcsplus.skin.Skin;
-import lol.pyr.znpcsplus.skin.SkinDescriptor;
 import org.bukkit.entity.Player;
 
 import java.util.concurrent.CompletableFuture;
 
-public class PrefetchedDescriptor implements SkinDescriptor {
+public class PrefetchedDescriptor implements BaseSkinDescriptor, SkinDescriptor {
     private final Skin skin;
 
     public PrefetchedDescriptor(Skin skin) {

plugin/src/main/java/lol/pyr/znpcsplus/tasks/NPCVisibilityTask.java

@@ -16,7 +16,7 @@ public class NPCVisibilityTask extends BukkitRunnable {
 
     public void run() {
         double distSq = NumberConversions.square(Configs.config().viewDistance());
-        for (NPC npc : NPCRegistry.all()) for (Player player : Bukkit.getOnlinePlayers()) {
+        for (NPC npc : NPCRegistry.get().all()) for (Player player : Bukkit.getOnlinePlayers()) {
             boolean inRange = (player.getWorld() == npc.getWorld() && player.getLocation().distanceSquared(npc.getLocation().toBukkitLocation(npc.getWorld())) <= distSq);
             if (!inRange && npc.isShown(player)) npc.hide(player);
             if (inRange && !npc.isShown(player)) npc.show(player);

settings.gradle

@@ -1,2 +1,3 @@
-rootProject.name = 'ZNPCsPlus'
+rootProject.name = "ZNPCsPlus"
 
+include "api", "plugin"

src/main/java/lol/pyr/znpcsplus/entity/PropertyHolder.java

@@ -1,18 +0,0 @@
-package lol.pyr.znpcsplus.entity;
-
-public interface PropertyHolder {
-    <T> T getProperty(EntityProperty<T> key);
-    boolean hasProperty(EntityProperty<?> key);
-
-    PropertyHolder EMPTY = new PropertyHolder() {
-        @Override
-        public <T> T getProperty(EntityProperty<T> key) {
-            return null;
-        }
-
-        @Override
-        public boolean hasProperty(EntityProperty<?> key) {
-            return false;
-        }
-    };
-}

src/main/java/lol/pyr/znpcsplus/npc/NPCRegistry.java

@@ -1,34 +0,0 @@
-package lol.pyr.znpcsplus.npc;
-
-import java.util.Collection;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.Map;
-
-public class NPCRegistry {
-    private static final Map<String, NPC> npcMap = new HashMap<>();
-
-    public static NPC get(String id) {
-        return npcMap.get(id);
-    }
-
-    public static Collection<NPC> all() {
-        return Collections.unmodifiableSet(NPC._ALL_NPCS);
-    }
-
-    public static NPC getByEntityId(int id) {
-        return all().stream().filter(npc -> npc.getEntity().getEntityId() == id).findFirst().orElse(null);
-    }
-
-    public static Collection<String> ids() {
-        return Collections.unmodifiableSet(npcMap.keySet());
-    }
-
-    public static void register(String id, NPC npc) {
-        npcMap.put(id, npc);
-    }
-
-    public static void unregister(String id) {
-        npcMap.remove(id);
-    }
-}