PaperMC/Spigot-Server-Patches/0033-Disable-explosion-knockback.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Sudzzy <originmc@outlook.com>
Date: Wed, 2 Mar 2016 14:48:03 -0600
Subject: [PATCH] Disable explosion knockback


diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index f038d3f7dc7d1034a3ee9f2384a85642f224836e..25e0717186366af580e512eedfd403b8efc64a75 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -156,4 +156,9 @@ public class PaperWorldConfig {
         optimizeExplosions = getBoolean("optimize-explosions", false);
         log("Optimize explosions: " + optimizeExplosions);
     }
+
+    public boolean disableExplosionKnockback;
+    private void disableExplosionKnockback(){
+        disableExplosionKnockback = getBoolean("disable-explosion-knockback", false);
+    }
 }
diff --git a/src/main/java/net/minecraft/server/EntityLiving.java b/src/main/java/net/minecraft/server/EntityLiving.java
index 083578259d0c428fb9439fcbb4b53ac59e9c390d..8928d9438f1ee1f37b7d38bef6671b3a2940e645 100644
--- a/src/main/java/net/minecraft/server/EntityLiving.java
+++ b/src/main/java/net/minecraft/server/EntityLiving.java
@@ -1184,6 +1184,7 @@ public abstract class EntityLiving extends Entity {
                 }
             }
 
+            boolean knockbackCancelled = world.paperConfig.disableExplosionKnockback && damagesource.isExplosion() && this instanceof EntityHuman; // Paper - Disable explosion knockback
             if (flag1) {
                 if (flag) {
                     this.world.broadcastEntityEffect(this, (byte) 29);
@@ -1202,6 +1203,7 @@ public abstract class EntityLiving extends Entity {
                         b0 = 2;
                     }
 
+                    if (!knockbackCancelled) // Paper - Disable explosion knockback
                     this.world.broadcastEntityEffect(this, b0);
                 }
 
@@ -1225,6 +1227,7 @@ public abstract class EntityLiving extends Entity {
                 }
             }
 
+            if (knockbackCancelled) this.world.broadcastEntityEffect(this, (byte) 2); // Paper - Disable explosion knockback
             if (this.dk()) {
                 if (!this.f(damagesource)) {
                     SoundEffect soundeffect = this.getSoundDeath();
diff --git a/src/main/java/net/minecraft/server/Explosion.java b/src/main/java/net/minecraft/server/Explosion.java
index 88d2fa33e4c9f90f2aa80b3afbf28edbdbeb03db..b7d635ca2cbe9bf7e2e3a2ae5fa7a20f39dd913b 100644
--- a/src/main/java/net/minecraft/server/Explosion.java
+++ b/src/main/java/net/minecraft/server/Explosion.java
@@ -189,14 +189,14 @@ public class Explosion {
                         double d14 = d13;
 
                         if (entity instanceof EntityLiving) {
-                            d14 = EnchantmentProtection.a((EntityLiving) entity, d13);
+                            d14 = entity instanceof EntityHuman && world.paperConfig.disableExplosionKnockback ? 0 : EnchantmentProtection.a((EntityLiving) entity, d13); // Paper - Disable explosion knockback
                         }
 
                         entity.setMot(entity.getMot().add(d8 * d14, d9 * d14, d10 * d14));
                         if (entity instanceof EntityHuman) {
                             EntityHuman entityhuman = (EntityHuman) entity;
 
-                            if (!entityhuman.isSpectator() && (!entityhuman.isCreative() || !entityhuman.abilities.isFlying)) {
+                            if (!entityhuman.isSpectator() && (!entityhuman.isCreative() || !entityhuman.abilities.isFlying) && !world.paperConfig.disableExplosionKnockback) { // Paper - Disable explosion knockback
                                 this.n.put(entityhuman, new Vec3D(d8 * d13, d9 * d13, d10 * d13));
                             }
                         }