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 690c1ce0f6707b2f5dd787e0fe340af5bd719783..d4d60220efdf32ee84eef57a7155e7de513cf029 100644
--- a/src/main/java/net/minecraft/server/EntityLiving.java
+++ b/src/main/java/net/minecraft/server/EntityLiving.java
@@ -1073,6 +1073,7 @@ 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);
@@ -1091,6 +1092,7 @@ public abstract class EntityLiving extends Entity {
                         b0 = 2;
                     }
 
+                        if (!knockbackCancelled) // Paper - Disable explosion knockback
                     this.world.broadcastEntityEffect(this, b0);
                 }
 
@@ -1114,6 +1116,8 @@ public abstract class EntityLiving extends Entity {
                 }
             }
 
+                if (knockbackCancelled) this.world.broadcastEntityEffect(this, (byte) 2); // Paper - Disable explosion knockback
+
             if (this.getHealth() <= 0.0F) {
                 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 5583860f152aadcbe74bf7b99e7efd8e47cefa35..d99d2defe9916e191ba7a2bfbd94bd72a2f5872a 100644
--- a/src/main/java/net/minecraft/server/Explosion.java
+++ b/src/main/java/net/minecraft/server/Explosion.java
@@ -193,14 +193,14 @@ 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() && !world.paperConfig.disableExplosionKnockback || !entityhuman.abilities.isFlying)) { // Paper - Disable explosion knockback
                                 this.l.put(entityhuman, new Vec3D(d8 * d13, d9 * d13, d10 * d13));
                             }
                         }