Purpur/patches/server/0113-Player-invulnerabilities.patch

From 62f89ef6290a97c5149e838728a711a2766356ad 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

---
 .../net/minecraft/server/EntityPlayer.java    | 22 +++++++++++++++++--
 .../minecraft/server/PlayerConnection.java    |  1 +
 .../java/net/minecraft/server/PlayerList.java |  2 ++
 .../net/pl3x/purpur/PurpurWorldConfig.java    |  4 ++++
 .../craftbukkit/entity/CraftPlayer.java       | 15 +++++++++++++
 5 files changed, 42 insertions(+), 2 deletions(-)

diff --git a/src/main/java/net/minecraft/server/EntityPlayer.java b/src/main/java/net/minecraft/server/EntityPlayer.java
index c4a6f94a3..d6415a506 100644
--- a/src/main/java/net/minecraft/server/EntityPlayer.java
+++ b/src/main/java/net/minecraft/server/EntityPlayer.java
@@ -131,6 +131,8 @@ public class EntityPlayer extends EntityHuman implements ICrafting {
         this.canPickUpLoot = true;
         this.maxHealthCache = this.getMaxHealth();
         this.cachedSingleMobDistanceMap = new com.destroystokyo.paper.util.PooledHashSets.PooledObjectLinkedOpenHashSet<>(this); // Paper
+
+        this.invulnerableTicks = world.purpurConfig.playerSpawnInvulnerableTicks; // Purpur
     }
 
     // Yes, this doesn't match Vanilla, but it's the best we can do for now.
@@ -726,6 +728,12 @@ public class EntityPlayer extends EntityHuman implements ICrafting {
 
     }
 
+    // Purpur start
+    public boolean isSpawnInvulnerable() {
+        return invulnerableTicks > 0 || frozen;
+    }
+    // Purpur end
+
     @Override
     public boolean damageEntity(DamageSource damagesource, float f) {
         if (this.isInvulnerable(damagesource)) {
@@ -733,7 +741,7 @@ public class EntityPlayer extends EntityHuman implements ICrafting {
         } else {
             boolean flag = this.server.m() && this.canPvP() && "fall".equals(damagesource.translationIndex);
 
-            if (!flag && this.invulnerableTicks > 0 && damagesource != DamageSource.OUT_OF_WORLD) {
+            if (!flag && isSpawnInvulnerable() && damagesource != DamageSource.OUT_OF_WORLD) { // Purpur
                 return false;
             } else {
                 if (damagesource instanceof EntityDamageSource) {
@@ -1000,6 +1008,8 @@ public class EntityPlayer extends EntityHuman implements ICrafting {
             PlayerChangedWorldEvent changeEvent = new PlayerChangedWorldEvent(this.getBukkitEntity(), worldserver.getWorld());
             this.world.getServer().getPluginManager().callEvent(changeEvent);
             // CraftBukkit end
+
+            this.invulnerableTicks = worldserver.purpurConfig.playerSpawnInvulnerableTicks; // Purpur
             return this;
         }
     }
@@ -1988,9 +1998,17 @@ public class EntityPlayer extends EntityHuman implements ICrafting {
 
     @Override
     public boolean isFrozen() { // Paper - protected > public
-        return super.isFrozen() || (this.playerConnection != null && this.playerConnection.isDisconnected()); // Paper
+        return super.isFrozen() || frozen || (this.playerConnection != null && this.playerConnection.isDisconnected()); // Paper // Purpur
     }
 
+    // Purpur start
+    private boolean frozen = false;
+
+    public void setFrozen(boolean frozen) {
+        this.frozen = frozen;
+    }
+    // Purpur end
+
     @Override
     public Scoreboard getScoreboard() {
         return getBukkitEntity().getScoreboard().getHandle();
diff --git a/src/main/java/net/minecraft/server/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java
index d3b4f0bea..2f047d8ec 100644
--- a/src/main/java/net/minecraft/server/PlayerConnection.java
+++ b/src/main/java/net/minecraft/server/PlayerConnection.java
@@ -1530,6 +1530,7 @@ public class PlayerConnection implements PacketListenerPlayIn {
         PlayerConnectionUtils.ensureMainThread(packetplayinresourcepackstatus, this, this.player.getWorldServer());
         // Paper start
         PlayerResourcePackStatusEvent.Status packStatus = PlayerResourcePackStatusEvent.Status.values()[packetplayinresourcepackstatus.status.ordinal()];
+        player.setFrozen(packStatus == PlayerResourcePackStatusEvent.Status.ACCEPTED); // Purpur
         player.getBukkitEntity().setResourcePackStatus(packStatus);
         this.server.getPluginManager().callEvent(new PlayerResourcePackStatusEvent(getPlayer(), packStatus));
         // Paper end
diff --git a/src/main/java/net/minecraft/server/PlayerList.java b/src/main/java/net/minecraft/server/PlayerList.java
index 60f3df16e..274270c7a 100644
--- a/src/main/java/net/minecraft/server/PlayerList.java
+++ b/src/main/java/net/minecraft/server/PlayerList.java
@@ -824,6 +824,8 @@ public abstract class PlayerList {
         }
         // Paper end
 
+        entityplayer1.invulnerableTicks = entityplayer1.world.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 efdc176e6..81969d2dc 100644
--- a/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
+++ b/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
@@ -209,6 +209,8 @@ public class PurpurWorldConfig {
     public boolean milkCuresBadOmen = true;
     public String playerDeathExpDropEquation = "expLevel * 7";
     public int playerDeathExpDropMax = 100;
+    public int playerSpawnInvulnerableTicks = 60;
+    public boolean playerInvulnerableWhileAcceptingResourcePack = false;
     public boolean playerSleepOnlyWithCondition = false;
     public String playerSleepCondition = "time >= 12541 && time <= 23458";
     public boolean useBetterMending = false;
@@ -254,6 +256,8 @@ public class PurpurWorldConfig {
         milkCuresBadOmen = getBoolean("gameplay-mechanics.milk-cures-bad-omen", milkCuresBadOmen);
         playerDeathExpDropEquation = getString("gameplay-mechanics.player.exp-dropped-on-death.equation", playerDeathExpDropEquation);
         playerDeathExpDropMax = getInt("gameplay-mechanics.player.exp-dropped-on-death.maximum", playerDeathExpDropMax);
+        playerSpawnInvulnerableTicks = getInt("gameplay-mechanics.player.spawn-invulnerable-ticks", playerSpawnInvulnerableTicks);
+        playerInvulnerableWhileAcceptingResourcePack = getBoolean("gameplay-mechanics.player.invulnerable-while-accepting-resource-pack", playerInvulnerableWhileAcceptingResourcePack);
         playerSleepOnlyWithCondition = getBoolean("gameplay-mechanics.player.sleep.only-with-condition", playerSleepOnlyWithCondition);
         playerSleepCondition = getString("gameplay-mechanics.player.sleep.condition", playerSleepCondition);
         useBetterMending = getBoolean("gameplay-mechanics.use-better-mending", useBetterMending);
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
index c14493929..a3ffa34e0 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -2095,5 +2095,20 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
     public void resetIdleTimer() {
         getHandle().resetIdleTimer();
     }
+
+    @Override
+    public boolean isSpawnInvulnerable() {
+        return getHandle().isSpawnInvulnerable();
+    }
+
+    @Override
+    public int getSpawnInvulnerableTicks() {
+        return getHandle().invulnerableTicks;
+    }
+
+    @Override
+    public void setSpawnInvulnerableTicks(int invulnerableTicks) {
+        getHandle().invulnerableTicks = invulnerableTicks;
+    }
     // Purpur end
 }
-- 
2.24.0