From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <Blake.Galbreath@GMail.com>
Date: Sat, 2 May 2020 20:55:44 -0500
Subject: [PATCH] Player invulnerabilities


diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
index cf7945ec299ebbef1d5bb0319f0795b47987bb1a..bc7c87bf1d2f4e6eac9b094bfe111d289bea83f6 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -333,6 +333,7 @@ public class ServerPlayer extends Player {
         this.bukkitPickUpLoot = true;
         this.maxHealthCache = this.getMaxHealth();
         this.cachedSingleMobDistanceMap = new com.destroystokyo.paper.util.PooledHashSets.PooledObjectLinkedOpenHashSet<>(this); // Paper
+        this.spawnInvulnerableTime = world.purpurConfig.playerSpawnInvulnerableTicks; // Purpur
     }
     // Paper start - Chunk priority
     public BlockPos getPointInFront(double inFront) {
@@ -974,6 +975,12 @@ public class ServerPlayer extends Player {
 
     }
 
+    // Purpur start
+    public boolean isSpawnInvulnerable() {
+        return spawnInvulnerableTime > 0 || frozen;
+    }
+    // Purpur end
+
     @Override
     public boolean hurt(DamageSource source, float amount) {
         if (this.isInvulnerableTo(source)) {
@@ -981,7 +988,7 @@ public class ServerPlayer extends Player {
         } else {
             boolean flag = this.server.isDedicatedServer() && this.isPvpAllowed() && "fall".equals(source.msgId);
 
-            if (!flag && this.spawnInvulnerableTime > 0 && source != DamageSource.OUT_OF_WORLD) {
+            if (!flag && isSpawnInvulnerable() && source != DamageSource.OUT_OF_WORLD) { // Purpur
                 return false;
             } else {
                 if (source instanceof EntityDamageSource) {
@@ -1156,6 +1163,7 @@ public class ServerPlayer extends Player {
             }
             // Paper end
 
+            this.spawnInvulnerableTime = worldserver.purpurConfig.playerSpawnInvulnerableTicks; // Purpur
             return this;
         }
     }
@@ -2390,8 +2398,16 @@ public class ServerPlayer extends Player {
 
     @Override
     public boolean isImmobile() {
-        return super.isImmobile() || (this.connection != null && this.connection.isDisconnected()); // Paper
+        return super.isImmobile() || frozen || (this.connection != null && this.connection.isDisconnected()); // Paper // Purpur
+    }
+
+    // Purpur start
+    private boolean frozen = false;
+
+    public void setFrozen(boolean frozen) {
+        this.frozen = frozen;
     }
+    // Purpur end
 
     @Override
     public Scoreboard getScoreboard() {
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index af0c7bbce7641f5aa659abb440a6cd6f57019ede..71030d9e156ce28f1ef9e3ed6845f022a62dfdaf 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -1938,6 +1938,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
         }
         // Paper start
         PlayerResourcePackStatusEvent.Status packStatus = PlayerResourcePackStatusEvent.Status.values()[packet.action.ordinal()];
+        if (player.level.purpurConfig.playerInvulnerableWhileAcceptingResourcePack) player.setFrozen(packStatus == PlayerResourcePackStatusEvent.Status.ACCEPTED); // Purpur
         player.getBukkitEntity().setResourcePackStatus(packStatus);
         this.cserver.getPluginManager().callEvent(new PlayerResourcePackStatusEvent(this.getCraftPlayer(), packStatus)); // CraftBukkit
         // Paper end
diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
index ec98fb6d4a407d5be8faf64db0d73e935e16623d..3961f1908876206b86126a672b691bfc571ea2f0 100644
--- a/src/main/java/net/minecraft/server/players/PlayerList.java
+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
@@ -991,6 +991,8 @@ public abstract class PlayerList {
         }
         // Paper end
 
+        entityplayer1.spawnInvulnerableTime = entityplayer1.level.purpurConfig.playerSpawnInvulnerableTicks; // Purpur
+
         // CraftBukkit end
         return entityplayer1;
     }
diff --git a/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java b/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
index 12e3804b2abd61b32a810162bef5e087a7c1d3c6..f3f40ac229cbb48f536423b90b176f501ff0b907 100644
--- a/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
+++ b/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
@@ -94,11 +94,15 @@ public class PurpurWorldConfig {
     public boolean idleTimeoutTickNearbyEntities = true;
     public boolean idleTimeoutCountAsSleeping = false;
     public boolean idleTimeoutUpdateTabList = false;
+    public int playerSpawnInvulnerableTicks = 60;
+    public boolean playerInvulnerableWhileAcceptingResourcePack = false;
     private void playerSettings() {
         idleTimeoutKick = getBoolean("gameplay-mechanics.player.idle-timeout.kick-if-idle", idleTimeoutKick);
         idleTimeoutTickNearbyEntities = getBoolean("gameplay-mechanics.player.idle-timeout.tick-nearby-entities", idleTimeoutTickNearbyEntities);
         idleTimeoutCountAsSleeping = getBoolean("gameplay-mechanics.player.idle-timeout.count-as-sleeping", idleTimeoutCountAsSleeping);
         idleTimeoutUpdateTabList = getBoolean("gameplay-mechanics.player.idle-timeout.update-tab-list", idleTimeoutUpdateTabList);
+        playerSpawnInvulnerableTicks = getInt("gameplay-mechanics.player.spawn-invulnerable-ticks", playerSpawnInvulnerableTicks);
+        playerInvulnerableWhileAcceptingResourcePack = getBoolean("gameplay-mechanics.player.invulnerable-while-accepting-resource-pack", playerInvulnerableWhileAcceptingResourcePack);
     }
 
     public boolean babiesAreRidable = true;
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
index 3eeb138d060f86e0f928fc59234563528d83bf65..2e42abb396b84b9f6d42809086f5a513dbc9ef40 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -2550,5 +2550,20 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
     public void resetIdleTimer() {
         getHandle().resetLastActionTime();
     }
+
+    @Override
+    public boolean isSpawnInvulnerable() {
+        return getHandle().isSpawnInvulnerable();
+    }
+
+    @Override
+    public int getSpawnInvulnerableTicks() {
+        return getHandle().spawnInvulnerableTime;
+    }
+
+    @Override
+    public void setSpawnInvulnerableTicks(int spawnInvulnerableTime) {
+        getHandle().spawnInvulnerableTime = spawnInvulnerableTime;
+    }
     // Purpur end
 }