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

From cf24658d7888f1e4ca7faa4fa85c90cf87f3da29 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 a39451c69a..65a99b2a4b 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -159,4 +159,9 @@ 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 b092b0fa23..c5cc0b471b 100644
--- a/src/main/java/net/minecraft/server/EntityLiving.java
+++ b/src/main/java/net/minecraft/server/EntityLiving.java
@@ -1006,6 +1006,7 @@ 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);
@@ -1022,6 +1023,7 @@ public abstract class EntityLiving extends Entity {
                         b0 = 2;
                     }
 
+                        if (!knockbackCancelled) // Paper - Disable explosion knockback
                     this.world.broadcastEntityEffect(this, b0);
                 }
 
@@ -1045,6 +1047,8 @@ 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.e(damagesource)) {
                     SoundEffect soundeffect = this.cs();
diff --git a/src/main/java/net/minecraft/server/Explosion.java b/src/main/java/net/minecraft/server/Explosion.java
index 3e44b2d549..5591ccb3b0 100644
--- a/src/main/java/net/minecraft/server/Explosion.java
+++ b/src/main/java/net/minecraft/server/Explosion.java
@@ -153,7 +153,7 @@ 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.motX += d8 * d14;
@@ -162,7 +162,7 @@ public class Explosion {
                         if (entity instanceof EntityHuman) {
                             EntityHuman entityhuman = (EntityHuman) entity;
 
-                            if (!entityhuman.isSpectator() && (!entityhuman.u() || !entityhuman.abilities.isFlying)) {
+                            if (!entityhuman.isSpectator() && (!entityhuman.u() && !world.paperConfig.disableExplosionKnockback || !entityhuman.abilities.isFlying)) { // Paper - Disable explosion knockback
                                 this.l.put(entityhuman, new Vec3D(d8 * d13, d9 * d13, d10 * d13));
                             }
                         }
-- 
2.21.0