Make old worlds have min Y 0

core/build.gradle.kts

@@ -79,7 +79,7 @@ publishing {
 
 tasks {
     processResources {
-        filesMatching(listOf("plugin.yml")) {
+        filesMatching(listOf("plugin.yml", "paper-plugin.yml")) {
             expand(
                 "name" to project.name,
                 "description" to project.description,

core/src/main/java/tc/oc/pgm/api/map/WorldInfo.java

@@ -28,5 +28,5 @@ public interface WorldInfo {
    *
    * @return The world environment type.
    */
-  int getEnvironment();
+  World.Environment getEnvironment();
 }

core/src/main/java/tc/oc/pgm/filters/matcher/player/CarryingItemFilter.java

@@ -1,5 +1,7 @@
 package tc.oc.pgm.filters.matcher.player;
 
+import static tc.oc.pgm.util.bukkit.InventoryViewUtil.INVENTORY_VIEW;
+
 import com.google.common.collect.ImmutableList;
 import java.util.Arrays;
 import java.util.Collection;
@@ -39,16 +41,16 @@ public Collection<Class<? extends Event>> getRelevantEvents() {
 
   @Override
   protected Stream<ItemStack> getItems(MatchPlayer player) {
-    Stream<ItemStack> inventory =
-        Stream.concat(
-            Arrays.stream(player.getBukkit().getInventory().getContents()),
-            Stream.of(player.getBukkit().getItemOnCursor()));
+    Stream<ItemStack> inventory = Stream.concat(
+        Arrays.stream(player.getBukkit().getInventory().getContents()),
+        Stream.of(player.getBukkit().getItemOnCursor()));
 
     // Potentially add the crafting grid if that's the currently open inventory
     InventoryView invView = player.getBukkit().getOpenInventory();
-    InventoryType type = invView.getType();
+    InventoryType type = INVENTORY_VIEW.getType(invView);
     if (type == InventoryType.CRAFTING || type == InventoryType.WORKBENCH) {
-      return Stream.concat(inventory, Arrays.stream(invView.getTopInventory().getContents()));
+      return Stream.concat(
+          inventory, Arrays.stream(INVENTORY_VIEW.getTopInventory(invView).getContents()));
     }
     return inventory;
   }

core/src/main/java/tc/oc/pgm/flag/state/Carried.java

@@ -5,6 +5,7 @@
 import static net.kyori.adventure.text.Component.translatable;
 import static net.kyori.adventure.title.Title.title;
 import static tc.oc.pgm.util.TimeUtils.fromTicks;
+import static tc.oc.pgm.util.bukkit.InventoryViewUtil.INVENTORY_VIEW;
 import static tc.oc.pgm.util.nms.Packets.PLAYERS;
 
 import java.time.Duration;
@@ -309,10 +310,9 @@ public void onEvent(ParticipantDespawnEvent event) {
   @Override
   public void onEvent(InventoryClickEvent event) {
     super.onEvent(event);
-    if (this.isCarrier(event.getWhoClicked())
-        && event.getSlot() == ArmorType.HELMET.inventorySlot()) {
+    if (isCarrier(event.getWhoClicked()) && event.getSlot() == ArmorType.HELMET.inventorySlot()) {
       event.setCancelled(true);
-      event.getView().setCursor(null);
+      INVENTORY_VIEW.setCursor(event.getView(), null);
       event.setCurrentItem(null);
       this.flag.getMatch().getExecutor(MatchScope.RUNNING).execute(() -> {
         if (isCurrent()) dropFlag();

core/src/main/java/tc/oc/pgm/kits/ClearItemsKit.java

@@ -1,5 +1,7 @@
 package tc.oc.pgm.kits;
 
+import static tc.oc.pgm.util.bukkit.InventoryViewUtil.INVENTORY_VIEW;
+
 import java.util.List;
 import org.bukkit.event.inventory.InventoryType;
 import org.bukkit.inventory.Inventory;
@@ -47,12 +49,12 @@ public void applyPostEvent(MatchPlayer player, boolean force, List<ItemStack> di
     }
     if (this.items) {
       player.getBukkit().getInventory().clear();
-      player.getBukkit().getOpenInventory().setCursor(null);
+      INVENTORY_VIEW.setCursor(player.getBukkit().getOpenInventory(), null);
       InventoryView openInventory = player.getBukkit().getOpenInventory();
-      if (openInventory != null
-          && (openInventory.getType().equals(InventoryType.CRAFTING)
-              || openInventory.getType().equals(InventoryType.WORKBENCH))) {
-        Inventory topInventory = openInventory.getTopInventory();
+      InventoryType type = openInventory == null ? null : INVENTORY_VIEW.getType(openInventory);
+      if (type != null
+          && (type.equals(InventoryType.CRAFTING) || type.equals(InventoryType.WORKBENCH))) {
+        Inventory topInventory = INVENTORY_VIEW.getTopInventory(openInventory);
         if (topInventory != null) {
           topInventory.clear();
         }

core/src/main/java/tc/oc/pgm/listeners/AntiGriefListener.java

@@ -1,6 +1,7 @@
 package tc.oc.pgm.listeners;
 
 import static net.kyori.adventure.text.Component.translatable;
+import static tc.oc.pgm.util.bukkit.InventoryViewUtil.INVENTORY_VIEW;
 
 import java.util.ArrayList;
 import java.util.Collections;
@@ -205,7 +206,7 @@ public void giveKit(final ObserverKitApplyEvent event) {
   public void cloneCraftingWindow(final PlayerInteractEvent event) {
     if (!event.isCancelled()
         && event.getAction() == Action.RIGHT_CLICK_BLOCK
-        && event.getPlayer().getOpenInventory().getType() == InventoryType.CRAFTING) {
+        && INVENTORY_VIEW.getType(event.getPlayer().getOpenInventory()) == InventoryType.CRAFTING) {
       Block block = event.getClickedBlock();
       if (block != null
           && block.getType() == Materials.WORKBENCH

core/src/main/java/tc/oc/pgm/map/WorldInfoImpl.java

@@ -15,27 +15,26 @@ public class WorldInfoImpl implements WorldInfo {
   private static final Random random = new Random();
   private final long seed; // 0 means random every time
   private final boolean terrain;
-  private final int environment;
+  private final World.Environment environment;
 
   public WorldInfoImpl() {
-    this(0L, false, 0);
-  }
-
-  public WorldInfoImpl(long seed, boolean terrain, int environment) {
-    this.seed = seed;
-    this.terrain = terrain;
-    this.environment = environment > 1 || environment < -1 ? 0 : environment;
+    this(0L, false, World.Environment.NORMAL);
   }
 
   public WorldInfoImpl(Element element) throws InvalidXMLException {
     this(
         parseSeed(assertNotNull(element).getAttributeValue("seed")),
         XMLUtils.parseBoolean(element.getAttribute("vanilla"), false),
         XMLUtils.parseEnum(
-                Node.fromLastChildOrAttr(element, "environment"),
-                World.Environment.class,
-                World.Environment.NORMAL)
-            .ordinal());
+            Node.fromLastChildOrAttr(element, "environment"),
+            World.Environment.class,
+            World.Environment.NORMAL));
+  }
+
+  private WorldInfoImpl(long seed, boolean terrain, World.Environment environment) {
+    this.seed = seed;
+    this.terrain = terrain;
+    this.environment = environment;
   }
 
   @Override
@@ -49,7 +48,7 @@ public boolean hasTerrain() {
   }
 
   @Override
-  public int getEnvironment() {
+  public World.Environment getEnvironment() {
     return environment;
   }
 

core/src/main/java/tc/oc/pgm/match/MatchFactoryImpl.java

@@ -10,6 +10,7 @@
 import java.time.Duration;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Objects;
 import java.util.Stack;
 import java.util.concurrent.Callable;
 import java.util.concurrent.CompletableFuture;
@@ -25,7 +26,6 @@
 import org.bukkit.Difficulty;
 import org.bukkit.Location;
 import org.bukkit.World;
-import org.bukkit.WorldCreator;
 import org.bukkit.entity.Player;
 import tc.oc.pgm.api.PGM;
 import tc.oc.pgm.api.map.MapContext;
@@ -37,7 +37,6 @@
 import tc.oc.pgm.api.player.MatchPlayer;
 import tc.oc.pgm.spawns.SpawnMatchModule;
 import tc.oc.pgm.util.FileUtils;
-import tc.oc.pgm.util.chunk.NullChunkGenerator;
 import tc.oc.pgm.util.text.TextException;
 import tc.oc.pgm.util.text.TextParser;
 import tc.oc.pgm.util.text.TextTranslations;
@@ -67,7 +66,7 @@ public Match call() {
       // Match creation was cancelled, no need to show an error
       if (e.getCause() instanceof InterruptedException) throw e;
 
-      Throwable err = e.getCause();
+      Throwable err = Objects.requireNonNullElse(e.getCause(), e);
       PGM.get().getGameLogger().log(Level.SEVERE, err.getMessage(), err.getCause());
       throw e;
     }
@@ -267,16 +266,9 @@ private InitWorldStage(MapContext map, String worldName) {
 
     private Stage advanceSync() throws IllegalStateException {
       final WorldInfo info = map.getInfo().getWorld();
-      WorldCreator creator = NMS_HACKS.detectWorld(worldName);
-      if (creator == null) {
-        creator = new WorldCreator(worldName);
-      }
-      final World world = PGM.get()
-          .getServer()
-          .createWorld(creator
-              .environment(environments[info.getEnvironment()])
-              .generator(info.hasTerrain() ? null : NullChunkGenerator.INSTANCE)
-              .seed(info.hasTerrain() ? info.getSeed() : creator.seed()));
+      final World world = NMS_HACKS.createWorld(
+          worldName, info.getEnvironment(), info.hasTerrain(), info.getSeed());
+
       if (world == null) throw new IllegalStateException("Unable to load a null world");
 
       world.setPVP(true);

core/src/main/java/tc/oc/pgm/picker/PickerMatchModule.java

@@ -4,6 +4,7 @@
 import static net.kyori.adventure.text.Component.text;
 import static net.kyori.adventure.text.Component.translatable;
 import static tc.oc.pgm.util.Assert.assertTrue;
+import static tc.oc.pgm.util.bukkit.InventoryViewUtil.INVENTORY_VIEW;
 
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableSet;
@@ -489,7 +490,7 @@ private boolean checkWindow(MatchPlayer player) {
    */
   private @Nullable Inventory getOpenWindow(MatchPlayer player) {
     if (picking.contains(player)) {
-      return player.getBukkit().getOpenInventory().getTopInventory();
+      return INVENTORY_VIEW.getTopInventory(player.getBukkit().getOpenInventory());
     }
     return null;
   }
@@ -713,7 +714,7 @@ private void scheduleClose(final MatchPlayer player) {
 
     match.getExecutor(MatchScope.LOADED).execute(() -> {
       if (bukkit.isOnline()) {
-        bukkit.getOpenInventory().getTopInventory().clear();
+        INVENTORY_VIEW.getTopInventory(bukkit.getOpenInventory()).clear();
         bukkit.closeInventory();
       }
     });

core/src/main/resources/paper-plugin.yml

@@ -0,0 +1,18 @@
+name: PGM
+api-version: 1.21.1
+description: ${description}
+main: ${mainClass}
+version: ${version} (git-${commitHash})
+website: ${url}
+bootstrapper: tc.oc.pgm.platform.modern.PgmBootstrap
+
+dependencies:
+  server:
+    ProtocolLib:
+      load: BEFORE
+      required: true
+      join-classpath: true
+    ViaVersion:
+      load: BEFORE
+      required: false
+      join-classpath: true