PaperMC/Spigot-Server-Patches/0040-Disable-explosion-knockback.patch

From 42387eb4bbc045d276ba084d578cb3f5b41b8e84 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 1c8e310..694b448 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -213,4 +213,9 @@ public class PaperWorldConfig {
         lavaFlowSpeedNormal = getInt("lava-flow-speed.normal", 30);
         lavaFlowSpeedNether = getInt("lava-flow-speed.nether", 10);
     }
+
+    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 b864c5a..f3fdd4c 100644
--- a/src/main/java/net/minecraft/server/EntityLiving.java
+++ b/src/main/java/net/minecraft/server/EntityLiving.java
@@ -853,12 +853,14 @@ 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);
                     } else if (damagesource instanceof EntityDamageSource && ((EntityDamageSource) damagesource).x()) {
                         this.world.broadcastEntityEffect(this, (byte) 33);
                     } else {
+                        if (!knockbackCancelled) // Paper - Disable explosion knockback
                         this.world.broadcastEntityEffect(this, (byte) 2);
                     }
 
@@ -882,6 +884,8 @@ public abstract class EntityLiving extends Entity {
                     }
                 }
 
+                if (knockbackCancelled) this.world.broadcastEntityEffect(this, (byte) 2); // Paper - Disable explosion knockback
+
                 if (this.getHealth() <= 0.0F) {
                     SoundEffect soundeffect = this.bS();
 
diff --git a/src/main/java/net/minecraft/server/Explosion.java b/src/main/java/net/minecraft/server/Explosion.java
index afe402e..cd2fb14 100644
--- a/src/main/java/net/minecraft/server/Explosion.java
+++ b/src/main/java/net/minecraft/server/Explosion.java
@@ -145,7 +145,7 @@ public class Explosion {
                         double d14 = 1.0D;
 
                         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.motX += d8 * d14;
@@ -154,7 +154,7 @@ public class Explosion {
                         if (entity instanceof EntityHuman) {
                             EntityHuman entityhuman = (EntityHuman) entity;
 
-                            if (!entityhuman.isSpectator() && (!entityhuman.l_() || !entityhuman.abilities.isFlying)) {
+                            if (!entityhuman.isSpectator() && (!entityhuman.l_() && !world.paperConfig.disableExplosionKnockback|| !entityhuman.abilities.isFlying)) { // Paper - Disable explosion knockback
                                 this.k.put(entityhuman, new Vec3D(d8 * d13, d9 * d13, d10 * d13));
                             }
                         }
-- 
2.7.2