move to paper-adapters

bootstrap/spigot/build.gradle.kts

@@ -7,6 +7,9 @@ dependencies {
     implementation(variantOf(libs.adapters.spigot) {
         classifier("all") // otherwise the unshaded jar is used without the shaded NMS implementations
     })
+    implementation(variantOf(libs.adapters.paper) {
+        classifier("all") // otherwise the unshaded jar is used without the shaded NMS implementations
+    })
 
     implementation(libs.commodore)
 
@@ -34,6 +37,12 @@ application {
 }
 
 tasks.withType<com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar> {
+
+    // Prevents Paper 1.20.5+ from remapping Geyser
+    manifest {
+        attributes["paperweight-mappings-namespace"] = "mojang"
+    }
+
     archiveBaseName.set("Geyser-Spigot")
 
     dependencies {

bootstrap/spigot/src/main/java/org/geysermc/geyser/platform/spigot/GeyserSpigotPlugin.java

@@ -46,6 +46,7 @@ import org.checkerframework.checker.nullness.qual.NonNull;
 import org.geysermc.geyser.Constants;
 import org.geysermc.geyser.GeyserBootstrap;
 import org.geysermc.geyser.GeyserImpl;
+import org.geysermc.geyser.adapters.paper.PaperAdapters;
 import org.geysermc.geyser.adapters.spigot.SpigotAdapters;
 import org.geysermc.geyser.api.command.Command;
 import org.geysermc.geyser.api.extension.Extension;
@@ -244,16 +245,27 @@ public class GeyserSpigotPlugin extends JavaPlugin implements GeyserBootstrap {
 
         if (Boolean.parseBoolean(System.getProperty("Geyser.UseDirectAdapters", "true"))) {
             try {
-                String version = Bukkit.getBukkitVersion().split("-")[0];
+                boolean isPaper = false;
-                String nmsVersion = "v" + version.replace(".", "_");
+                try {
+                    String name = Bukkit.getServer().getClass().getPackage().getName();
+                    String nmsVersion = name.substring(name.lastIndexOf('.') + 1);
                     SpigotAdapters.registerWorldAdapter(nmsVersion);
+                    geyserLogger.debug("Using spigot NMS adapter for nms version: " + nmsVersion);
+                } catch (Exception e) { // Likely running on Paper 1.20.5+
+                    //noinspection deprecation
+                    int protocolVersion = Bukkit.getUnsafe().getProtocolVersion();
+                    PaperAdapters.registerClosestWorldAdapter(protocolVersion);
+                    isPaper = true;
+                    geyserLogger.debug("Using paper world adapter for protocol version: " + protocolVersion);
+                }
+
                 if (isViaVersion && isViaVersionNeeded()) {
-                    this.geyserWorldManager = new GeyserSpigotLegacyNativeWorldManager(this);
+                    this.geyserWorldManager = new GeyserSpigotLegacyNativeWorldManager(this, isPaper);
                 } else {
                     // No ViaVersion
-                    this.geyserWorldManager = new GeyserSpigotNativeWorldManager(this);
+                    this.geyserWorldManager = new GeyserSpigotNativeWorldManager(this, isPaper);
                 }
-                geyserLogger.debug("Using NMS adapter: " + this.geyserWorldManager.getClass() + ", " + nmsVersion);
+                geyserLogger.debug("Using world manager of type: " + this.geyserWorldManager.getClass().getSimpleName());
             } catch (Exception e) {
                 if (geyserConfig.isDebugMode()) {
                     geyserLogger.debug("Error while attempting to find NMS adapter. Most likely, this can be safely ignored. :)");

bootstrap/spigot/src/main/java/org/geysermc/geyser/platform/spigot/world/manager/GeyserSpigotLegacyNativeWorldManager.java

@@ -46,8 +46,8 @@ public class GeyserSpigotLegacyNativeWorldManager extends GeyserSpigotNativeWorl
 
     private final Int2IntMap oldToNewBlockId;
 
-    public GeyserSpigotLegacyNativeWorldManager(GeyserSpigotPlugin plugin) {
+    public GeyserSpigotLegacyNativeWorldManager(GeyserSpigotPlugin plugin, boolean isPaper) {
-        super(plugin);
+        super(plugin, isPaper);
         IntList allBlockStates = adapter.getAllBlockStates();
         oldToNewBlockId = new Int2IntOpenHashMap(allBlockStates.size());
         ProtocolVersion serverVersion = plugin.getServerProtocolVersion();

bootstrap/spigot/src/main/java/org/geysermc/geyser/platform/spigot/world/manager/GeyserSpigotNativeWorldManager.java

@@ -26,21 +26,27 @@
 package org.geysermc.geyser.platform.spigot.world.manager;
 
 import org.bukkit.Bukkit;
+import org.bukkit.World;
 import org.bukkit.entity.Player;
 import org.bukkit.plugin.Plugin;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.geysermc.geyser.adapters.WorldAdapter;
+import org.geysermc.geyser.adapters.paper.PaperAdapters;
 import org.geysermc.geyser.adapters.spigot.SpigotAdapters;
-import org.geysermc.geyser.adapters.spigot.SpigotWorldAdapter;
 import org.geysermc.geyser.level.block.BlockStateValues;
 import org.geysermc.geyser.session.GeyserSession;
 
 public class GeyserSpigotNativeWorldManager extends GeyserSpigotWorldManager {
-    protected final SpigotWorldAdapter adapter;
+    protected final WorldAdapter<World> adapter;
 
-    public GeyserSpigotNativeWorldManager(Plugin plugin) {
+    public GeyserSpigotNativeWorldManager(Plugin plugin, boolean isPaper) {
         super(plugin);
+        if (isPaper) {
+            adapter = PaperAdapters.getWorldAdapter();
+        } else {
             adapter = SpigotAdapters.getWorldAdapter();
         }
+    }
 
     @Override
     public int getBlockAt(GeyserSession session, int x, int y, int z) {

gradle/libs.versions.toml

@@ -25,7 +25,7 @@ jline = "3.21.0"
 terminalconsoleappender = "1.2.0"
 folia = "1.19.4-R0.1-SNAPSHOT"
 viaversion = "4.9.2"
-adapters = "1.11-SNAPSHOT"
+adapters = "1.12-SNAPSHOT"
 commodore = "2.2"
 bungeecord = "a7c6ede"
 velocity = "3.1.1"
@@ -100,6 +100,7 @@ fabric-permissions = { group = "me.lucko", name = "fabric-permissions-api", vers
 neoforge-minecraft = { group = "net.neoforged", name = "neoforge", version.ref = "neoforge-minecraft" }
 
 adapters-spigot = { group = "org.geysermc.geyser.adapters", name = "spigot-all", version.ref = "adapters" }
+adapters-paper = { group = "org.geysermc.geyser.adapters", name = "paper-all", version.ref = "adapters" }
 bungeecord-proxy = { group = "com.github.SpigotMC.BungeeCord", name = "bungeecord-proxy", version.ref = "bungeecord" }
 checker-qual = { group = "org.checkerframework", name = "checker-qual", version.ref = "checkerframework" }
 commodore = { group = "me.lucko", name = "commodore", version.ref = "commodore" }