Paper/patches/server/0651-Add-PlayerSetSpawnEvent.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Wed, 19 May 2021 18:59:10 -0700
Subject: [PATCH] Add PlayerSetSpawnEvent


diff --git a/src/main/java/net/minecraft/server/commands/SetSpawnCommand.java b/src/main/java/net/minecraft/server/commands/SetSpawnCommand.java
index a2d0699e8427b2262a2396495111125eccafbb66..d797637f61bdf8a424f56fbb48e28b7c9117d604 100644
--- a/src/main/java/net/minecraft/server/commands/SetSpawnCommand.java
+++ b/src/main/java/net/minecraft/server/commands/SetSpawnCommand.java
@@ -38,24 +38,34 @@ public class SetSpawnCommand {
         ResourceKey<Level> resourcekey = source.getLevel().dimension();
         Iterator iterator = targets.iterator();
 
+        final Collection<ServerPlayer> actualTargets = new java.util.ArrayList<>(); // Paper
         while (iterator.hasNext()) {
             ServerPlayer entityplayer = (ServerPlayer) iterator.next();
 
-            entityplayer.setRespawnPosition(resourcekey, pos, angle, true, false, org.bukkit.event.player.PlayerSpawnChangeEvent.Cause.COMMAND); // CraftBukkit
+            // Paper start - PlayerSetSpawnEvent
+            if (entityplayer.setRespawnPosition(resourcekey, pos, angle, true, false, com.destroystokyo.paper.event.player.PlayerSetSpawnEvent.Cause.COMMAND)) {
+                actualTargets.add(entityplayer);
+            }
+            // Paper end
         }
+        // Paper start
+        if (actualTargets.isEmpty()) {
+            return 0;
+        }
+        // Paper end
 
         String s = resourcekey.location().toString();
 
-        if (targets.size() == 1) {
+        if (actualTargets.size() == 1) { // Paper
             source.sendSuccess(() -> {
-                return Component.translatable("commands.spawnpoint.success.single", pos.getX(), pos.getY(), pos.getZ(), angle, s, ((ServerPlayer) targets.iterator().next()).getDisplayName());
+                return Component.translatable("commands.spawnpoint.success.single", pos.getX(), pos.getY(), pos.getZ(), angle, s, ((ServerPlayer) actualTargets.iterator().next()).getDisplayName()); // Paper
             }, true);
         } else {
             source.sendSuccess(() -> {
-                return Component.translatable("commands.spawnpoint.success.multiple", pos.getX(), pos.getY(), pos.getZ(), angle, s, targets.size());
+                return Component.translatable("commands.spawnpoint.success.multiple", pos.getX(), pos.getY(), pos.getZ(), angle, s, actualTargets.size()); // Paper
             }, true);
         }
 
-        return targets.size();
+        return actualTargets.size(); // Paper
     }
 }
diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
index deaf1fcb189ba1382f2b52d12afa12463874f7ec..c06e81d5448364154d9fb4fb68c1867d04daeb97 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -1349,7 +1349,7 @@ public class ServerPlayer extends Player {
             } else if (this.bedBlocked(blockposition, enumdirection)) {
                 return Either.left(Player.BedSleepingProblem.OBSTRUCTED);
             } else {
-                this.setRespawnPosition(this.level().dimension(), blockposition, this.getYRot(), false, true, PlayerSpawnChangeEvent.Cause.BED); // CraftBukkit
+                this.setRespawnPosition(this.level().dimension(), blockposition, this.getYRot(), false, true, com.destroystokyo.paper.event.player.PlayerSetSpawnEvent.Cause.BED); // Paper - PlayerSetSpawnEvent
                 if (this.level().isDay()) {
                     return Either.left(Player.BedSleepingProblem.NOT_POSSIBLE_NOW);
                 } else {
@@ -2196,44 +2196,50 @@ public class ServerPlayer extends Player {
         return this.respawnForced;
     }
 
+    @Deprecated // Paper
     public void setRespawnPosition(ResourceKey<Level> dimension, @Nullable BlockPos pos, float angle, boolean forced, boolean sendMessage) {
-        // CraftBukkit start
-        this.setRespawnPosition(dimension, pos, angle, forced, sendMessage, PlayerSpawnChangeEvent.Cause.UNKNOWN);
-    }
-
-    public void setRespawnPosition(ResourceKey<Level> resourcekey, @Nullable BlockPos blockposition, float f, boolean flag, boolean flag1, PlayerSpawnChangeEvent.Cause cause) {
-        ServerLevel newWorld = this.server.getLevel(resourcekey);
-        Location newSpawn = (blockposition != null) ? CraftLocation.toBukkit(blockposition, newWorld.getWorld(), f, 0) : null;
-
-        PlayerSpawnChangeEvent event = new PlayerSpawnChangeEvent(this.getBukkitEntity(), newSpawn, flag, cause);
-        Bukkit.getServer().getPluginManager().callEvent(event);
-        if (event.isCancelled()) {
-            return;
-        }
-        newSpawn = event.getNewSpawn();
-        flag = event.isForced();
-
-        if (newSpawn != null) {
-            resourcekey = ((CraftWorld) newSpawn.getWorld()).getHandle().dimension();
-            blockposition = BlockPos.containing(newSpawn.getX(), newSpawn.getY(), newSpawn.getZ());
-            f = newSpawn.getYaw();
-        } else {
-            resourcekey = Level.OVERWORLD;
-            blockposition = null;
-            f = 0.0F;
+        // Paper start
+        this.setRespawnPosition(dimension, pos, angle, forced, sendMessage, com.destroystokyo.paper.event.player.PlayerSetSpawnEvent.Cause.UNKNOWN);
+    }
+    @Deprecated
+    public boolean setRespawnPosition(ResourceKey<Level> dimension, @Nullable BlockPos pos, float angle, boolean forced, boolean sendMessage, PlayerSpawnChangeEvent.Cause cause) {
+        return this.setRespawnPosition(dimension, pos, angle, forced, sendMessage, cause == PlayerSpawnChangeEvent.Cause.RESET ?
+            com.destroystokyo.paper.event.player.PlayerSetSpawnEvent.Cause.PLAYER_RESPAWN : com.destroystokyo.paper.event.player.PlayerSetSpawnEvent.Cause.valueOf(cause.name()));
+    }
+    public boolean setRespawnPosition(ResourceKey<Level> dimension, @Nullable BlockPos pos, float angle, boolean forced, boolean sendMessage, com.destroystokyo.paper.event.player.PlayerSetSpawnEvent.Cause cause) {
+        Location spawnLoc = null;
+        boolean willNotify = false;
+        if (pos != null) {
+            boolean flag2 = pos.equals(this.respawnPosition) && dimension.equals(this.respawnDimension);
+            spawnLoc = io.papermc.paper.util.MCUtil.toLocation(this.getServer().getLevel(dimension), pos);
+            spawnLoc.setYaw(angle);
+            willNotify = sendMessage && !flag2;
+        }
+
+        PlayerSpawnChangeEvent dumbEvent = new PlayerSpawnChangeEvent(this.getBukkitEntity(), spawnLoc, forced,
+            cause == com.destroystokyo.paper.event.player.PlayerSetSpawnEvent.Cause.PLAYER_RESPAWN ? PlayerSpawnChangeEvent.Cause.RESET : PlayerSpawnChangeEvent.Cause.valueOf(cause.name()));
+        dumbEvent.callEvent();
+
+        com.destroystokyo.paper.event.player.PlayerSetSpawnEvent event = new com.destroystokyo.paper.event.player.PlayerSetSpawnEvent(this.getBukkitEntity(), cause, dumbEvent.getNewSpawn(), dumbEvent.isForced(), willNotify, willNotify ? net.kyori.adventure.text.Component.translatable("block.minecraft.set_spawn") : null);
+        event.setCancelled(dumbEvent.isCancelled());
+        if (!event.callEvent()) {
+            return false;
         }
-        // CraftBukkit end
-        if (blockposition != null) {
-            boolean flag2 = blockposition.equals(this.respawnPosition) && resourcekey.equals(this.respawnDimension);
+        if (event.getLocation() != null) {
+            dimension = event.getLocation().getWorld() != null ? ((CraftWorld) event.getLocation().getWorld()).getHandle().dimension() : dimension;
+            pos = io.papermc.paper.util.MCUtil.toBlockPosition(event.getLocation());
+            angle = event.getLocation().getYaw();
+            forced = event.isForced();
+            // Paper end
 
-            if (flag1 && !flag2) {
-                this.sendSystemMessage(Component.translatable("block.minecraft.set_spawn"));
+            if (event.willNotifyPlayer() && event.getNotification() != null) { // Paper
+                this.sendSystemMessage(PaperAdventure.asVanilla(event.getNotification())); // Paper
             }
 
-            this.respawnPosition = blockposition;
-            this.respawnDimension = resourcekey;
-            this.respawnAngle = f;
-            this.respawnForced = flag;
+            this.respawnPosition = pos;
+            this.respawnDimension = dimension;
+            this.respawnAngle = angle;
+            this.respawnForced = forced;
         } else {
             this.respawnPosition = null;
             this.respawnDimension = Level.OVERWORLD;
@@ -2241,6 +2247,7 @@ public class ServerPlayer extends Player {
             this.respawnForced = false;
         }
 
+        return true; // Paper
     }
 
     public void trackChunk(ChunkPos chunkPos, Packet<?> chunkDataPacket) {
diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
index c8e38ed5e14fb137a7d169c57bc58bdf4421e0cc..c3fb1bbc0e2a44160e86b5bb4ab88f78991fa9e6 100644
--- a/src/main/java/net/minecraft/server/players/PlayerList.java
+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
@@ -860,7 +860,7 @@ public abstract class PlayerList {
                     location = CraftLocation.toBukkit(vec3d, worldserver1.getWorld(), f1, 0.0F);
                 } else if (blockposition != null) {
                     entityplayer1.connection.send(new ClientboundGameEventPacket(ClientboundGameEventPacket.NO_RESPAWN_BLOCK_AVAILABLE, 0.0F));
-                    entityplayer1.setRespawnPosition(null, null, 0f, false, false, PlayerSpawnChangeEvent.Cause.RESET); // CraftBukkit - SPIGOT-5988: Clear respawn location when obstructed
+                    entityplayer1.setRespawnPosition(null, null, 0f, false, false, com.destroystokyo.paper.event.player.PlayerSetSpawnEvent.Cause.PLAYER_RESPAWN); // CraftBukkit - SPIGOT-5988: Clear respawn location when obstructed // Paper - PlayerSetSpawnEvent
                 }
             }
 
diff --git a/src/main/java/net/minecraft/world/level/block/RespawnAnchorBlock.java b/src/main/java/net/minecraft/world/level/block/RespawnAnchorBlock.java
index 1a27b7faa22e6b3dc5fce329ed06425de56c4315..b9903c29bdea8d1e3b6fce0e97be6bd9493cfdf4 100644
--- a/src/main/java/net/minecraft/world/level/block/RespawnAnchorBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/RespawnAnchorBlock.java
@@ -80,9 +80,14 @@ public class RespawnAnchorBlock extends Block {
                 ServerPlayer entityplayer = (ServerPlayer) player;
 
                 if (entityplayer.getRespawnDimension() != world.dimension() || !pos.equals(entityplayer.getRespawnPosition())) {
-                    entityplayer.setRespawnPosition(world.dimension(), pos, 0.0F, false, true, org.bukkit.event.player.PlayerSpawnChangeEvent.Cause.RESPAWN_ANCHOR); // CraftBukkit
+                    if (entityplayer.setRespawnPosition(world.dimension(), pos, 0.0F, false, true, com.destroystokyo.paper.event.player.PlayerSetSpawnEvent.Cause.RESPAWN_ANCHOR)) { // Paper - PlayerSetSpawnEvent
                     world.playSound((Player) null, (double) pos.getX() + 0.5D, (double) pos.getY() + 0.5D, (double) pos.getZ() + 0.5D, SoundEvents.RESPAWN_ANCHOR_SET_SPAWN, SoundSource.BLOCKS, 1.0F, 1.0F);
                     return InteractionResult.SUCCESS;
+                    // Paper start - handle failed set spawn
+                    } else {
+                        return InteractionResult.FAIL;
+                    }
+                    // Paper end
                 }
             }
 
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
index 0177065e849d25954737712cb0156fdb79a89156..a8da7ff2f8e2cf0195731f5034afa94fcd248340 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -1322,9 +1322,9 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
     @Override
     public void setBedSpawnLocation(Location location, boolean override) {
         if (location == null) {
-            this.getHandle().setRespawnPosition(null, null, 0.0F, override, false, PlayerSpawnChangeEvent.Cause.PLUGIN);
+            this.getHandle().setRespawnPosition(null, null, 0.0F, override, false, com.destroystokyo.paper.event.player.PlayerSetSpawnEvent.Cause.PLUGIN); // Paper - PlayerSetSpawnEvent
         } else {
-            this.getHandle().setRespawnPosition(((CraftWorld) location.getWorld()).getHandle().dimension(), CraftLocation.toBlockPosition(location), location.getYaw(), override, false, PlayerSpawnChangeEvent.Cause.PLUGIN);
+            this.getHandle().setRespawnPosition(((CraftWorld) location.getWorld()).getHandle().dimension(), CraftLocation.toBlockPosition(location), location.getYaw(), override, false, com.destroystokyo.paper.event.player.PlayerSetSpawnEvent.Cause.PLUGIN); // Paper - PlayerSetSpawnEvent
         }
     }