1 files changed, 158 insertions, 0 deletions
diff --git a/patches/server/0559-Expand-PlayerGameModeChangeEvent.patch b/patches/server/0559-Expand-PlayerGameModeChangeEvent.patch
new file mode 100644
index 0000000000..0b100fa9e9
--- /dev/null
+++ b/patches/server/0559-Expand-PlayerGameModeChangeEvent.patch
@@ -0,0 +1,158 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jake Potrebic <[email protected]>
+Date: Sat, 15 May 2021 10:04:43 -0700
+Subject: [PATCH] Expand PlayerGameModeChangeEvent
+
+
+diff --git a/src/main/java/net/minecraft/server/commands/DefaultGameModeCommands.java b/src/main/java/net/minecraft/server/commands/DefaultGameModeCommands.java
+index 50e581613156cca765dfd8e3596dcb3b58520cec..21d6a2a5d1722d44146384c28a3cba2df9b42771 100644
+--- a/src/main/java/net/minecraft/server/commands/DefaultGameModeCommands.java
++++ b/src/main/java/net/minecraft/server/commands/DefaultGameModeCommands.java
+@@ -25,9 +25,13 @@ public class DefaultGameModeCommands {
+         GameType gameType = minecraftServer.getForcedGameType();
+         if (gameType != null) {
+             for(ServerPlayer serverPlayer : minecraftServer.getPlayerList().getPlayers()) {
+-                if (serverPlayer.setGameMode(gameType)) {
+-                    ++i;
++                // Paper start - Expand PlayerGameModeChangeEvent
++                org.bukkit.event.player.PlayerGameModeChangeEvent event = serverPlayer.setGameMode(gameType, org.bukkit.event.player.PlayerGameModeChangeEvent.Cause.DEFAULT_GAMEMODE, net.kyori.adventure.text.Component.empty());
++                if (event != null && event.isCancelled()) {
++                    source.sendSuccess(() -> io.papermc.paper.adventure.PaperAdventure.asVanilla(event.cancelMessage()), false);
+                 }
++                // Paper end - Expand PlayerGameModeChangeEvent
++                    ++i;
+             }
+         }
+ 
+diff --git a/src/main/java/net/minecraft/server/commands/GameModeCommand.java b/src/main/java/net/minecraft/server/commands/GameModeCommand.java
+index aee8618e27b893b72931e925724dd683d2e6d2aa..f7c9127346261d83413ca03a1cdaa84975ae17d6 100644
+--- a/src/main/java/net/minecraft/server/commands/GameModeCommand.java
++++ b/src/main/java/net/minecraft/server/commands/GameModeCommand.java
+@@ -48,9 +48,14 @@ public class GameModeCommand {
+         int i = 0;
+ 
+         for(ServerPlayer serverPlayer : targets) {
+-            if (serverPlayer.setGameMode(gameMode)) {
++            // Paper start - Expand PlayerGameModeChangeEvent
++            org.bukkit.event.player.PlayerGameModeChangeEvent event = serverPlayer.setGameMode(gameMode, org.bukkit.event.player.PlayerGameModeChangeEvent.Cause.COMMAND, net.kyori.adventure.text.Component.empty());
++            if (event != null && !event.isCancelled()) {
+                 logGamemodeChange(context.getSource(), serverPlayer, gameMode);
+                 ++i;
++            } else if (event != null && event.cancelMessage() != null) {
++                context.getSource().sendSuccess(() -> io.papermc.paper.adventure.PaperAdventure.asVanilla(event.cancelMessage()), true);
++                // Paper end - Expand PlayerGameModeChangeEvent
+             }
+         }
+ 
+diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
+index 8c65b05e66372cf3c92f823d72e94c18fe77622b..a09ef51e94a0bf9f51bf358e7cf77dd5d272aab2 100644
+--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
++++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
+@@ -1940,8 +1940,16 @@ public class ServerPlayer extends Player {
+     }
+ 
+     public boolean setGameMode(GameType gameMode) {
+-        if (!this.gameMode.changeGameModeForPlayer(gameMode)) {
+-            return false;
++        // Paper start - Expand PlayerGameModeChangeEvent
++        org.bukkit.event.player.PlayerGameModeChangeEvent event = this.setGameMode(gameMode, org.bukkit.event.player.PlayerGameModeChangeEvent.Cause.UNKNOWN, null);
++        return event == null ? false : event.isCancelled();
++    }
++    @Nullable
++    public org.bukkit.event.player.PlayerGameModeChangeEvent setGameMode(GameType gameMode, org.bukkit.event.player.PlayerGameModeChangeEvent.Cause cause, @Nullable net.kyori.adventure.text.Component message) {
++        org.bukkit.event.player.PlayerGameModeChangeEvent event = this.gameMode.changeGameModeForPlayer(gameMode, cause, message);
++        if (event == null || event.isCancelled()) {
++            return null;
++            // Paper end - Expand PlayerGameModeChangeEvent
+         } else {
+             this.connection.send(new ClientboundGameEventPacket(ClientboundGameEventPacket.CHANGE_GAME_MODE, (float) gameMode.getId()));
+             if (gameMode == GameType.SPECTATOR) {
+@@ -1953,7 +1961,7 @@ public class ServerPlayer extends Player {
+ 
+             this.onUpdateAbilities();
+             this.updateEffectVisibility();
+-            return true;
++            return event; // Paper - Expand PlayerGameModeChangeEvent
+         }
+     }
+ 
+@@ -2365,6 +2373,16 @@ public class ServerPlayer extends Player {
+     }
+ 
+     public void loadGameTypes(@Nullable CompoundTag nbt) {
++        // Paper start - Expand PlayerGameModeChangeEvent
++        if (this.server.getForcedGameType() != null && this.server.getForcedGameType() != ServerPlayer.readPlayerMode(nbt, "playerGameType")) {
++            if (new org.bukkit.event.player.PlayerGameModeChangeEvent(this.getBukkitEntity(), org.bukkit.GameMode.getByValue(this.server.getDefaultGameType().getId()), org.bukkit.event.player.PlayerGameModeChangeEvent.Cause.DEFAULT_GAMEMODE, null).callEvent()) {
++                this.gameMode.setGameModeForPlayer(this.server.getForcedGameType(), GameType.DEFAULT_MODE);
++            } else {
++                this.gameMode.setGameModeForPlayer(ServerPlayer.readPlayerMode(nbt,"playerGameType"), ServerPlayer.readPlayerMode(nbt, "previousPlayerGameType"));
++            }
++            return;
++        }
++        // Paper end - Expand PlayerGameModeChangeEvent
+         this.gameMode.setGameModeForPlayer(this.calculateGameModeForNewPlayer(ServerPlayer.readPlayerMode(nbt, "playerGameType")), ServerPlayer.readPlayerMode(nbt, "previousPlayerGameType"));
+     }
+ 
+diff --git a/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java b/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
+index a03d1a85019afdc42de2b8449fc38384c4dac51e..4fe571915b247ec612b2376dce57991e441f63c2 100644
+--- a/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
++++ b/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
+@@ -73,21 +73,28 @@ public class ServerPlayerGameMode {
+     }
+ 
+     public boolean changeGameModeForPlayer(GameType gameMode) {
++        // Paper start - Expand PlayerGameModeChangeEvent
++        PlayerGameModeChangeEvent event = this.changeGameModeForPlayer(gameMode, org.bukkit.event.player.PlayerGameModeChangeEvent.Cause.UNKNOWN, null);
++        return event != null && event.isCancelled();
++    }
++    @Nullable
++    public PlayerGameModeChangeEvent changeGameModeForPlayer(GameType gameMode, org.bukkit.event.player.PlayerGameModeChangeEvent.Cause cause, @Nullable net.kyori.adventure.text.Component cancelMessage) {
++        // Paper end - Expand PlayerGameModeChangeEvent
+         if (gameMode == this.gameModeForPlayer) {
+-            return false;
++            return null; // Paper - Expand PlayerGameModeChangeEvent
+         } else {
+             // CraftBukkit start
+-            PlayerGameModeChangeEvent event = new PlayerGameModeChangeEvent(this.player.getBukkitEntity(), GameMode.getByValue(gameMode.getId()));
++            PlayerGameModeChangeEvent event = new PlayerGameModeChangeEvent(this.player.getBukkitEntity(), GameMode.getByValue(gameMode.getId()), cause, cancelMessage); // Paper
+             this.level.getCraftServer().getPluginManager().callEvent(event);
+             if (event.isCancelled()) {
+-                return false;
++                return event; // Paper - Expand PlayerGameModeChangeEvent
+             }
+             // CraftBukkit end
+             this.setGameModeForPlayer(gameMode, this.previousGameModeForPlayer);
+             this.player.onUpdateAbilities();
+             this.player.server.getPlayerList().broadcastAll(new ClientboundPlayerInfoUpdatePacket(ClientboundPlayerInfoUpdatePacket.Action.UPDATE_GAME_MODE, this.player), this.player); // CraftBukkit
+             this.level.updateSleepingPlayerList();
+-            return true;
++            return event; // Paper - Expand PlayerGameModeChangeEvent
+         }
+     }
+ 
+diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+index 2004712adede7e3307785389dd7aa4ba5465110f..c54a1c2bf8719791047eb9ccc6cbe26c7541f125 100644
+--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
++++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+@@ -2637,7 +2637,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+ 
+                     this.player = this.server.getPlayerList().respawn(this.player, false, RespawnReason.DEATH);
+                     if (this.server.isHardcore()) {
+-                        this.player.setGameMode(GameType.SPECTATOR);
++                        this.player.setGameMode(GameType.SPECTATOR, org.bukkit.event.player.PlayerGameModeChangeEvent.Cause.HARDCORE_DEATH, null); // Paper - Expand PlayerGameModeChangeEvent
+                         ((GameRules.BooleanValue) this.player.level().getGameRules().getRule(GameRules.RULE_SPECTATORSGENERATECHUNKS)).set(false, this.player.serverLevel()); // CraftBukkit - per-world
+                     }
+                 }
+diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+index a9f30ba8d6d6e3d488f46b0bd79bf77b660c1b82..fa5bf1ef9cb4df06eabce00ccdd86a408ddaef8f 100644
+--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
++++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+@@ -1562,7 +1562,7 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
+         Preconditions.checkArgument(mode != null, "GameMode cannot be null");
+         if (this.getHandle().connection == null) return;
+ 
+-        this.getHandle().setGameMode(GameType.byId(mode.getValue()));
++        this.getHandle().setGameMode(GameType.byId(mode.getValue()), org.bukkit.event.player.PlayerGameModeChangeEvent.Cause.PLUGIN, null); // Paper - Expand PlayerGameModeChangeEvent
+     }
+ 
+     @Override