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Fix source of knockback for spigot events (#11176)
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@Joo200
Joo200 authored Aug 9, 2024
1 parent 77a5779 commit 4d7cef3
Showing 1 changed file with 17 additions and 17 deletions.
34 changes: 17 additions & 17 deletions patches/server/0202-Add-entity-knockback-events.patch
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Original file line number Diff line number Diff line change
Expand Up @@ -38,7 +38,7 @@ index fd49b9d739b1bbab8cf110659cb83bad03b56102..a2b727dea997ed0d7b1ef677a94b5957
}

diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
index cccc60602360f25f0aeddbd16dad2bb63a1728a8..bf1b8ee85551ff1989369268edf8012758b86fd7 100644
index cccc60602360f25f0aeddbd16dad2bb63a1728a8..ada79af49d1cafe25ca6c1fb456e1c4c3a42cb73 100644
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
@@ -1528,7 +1528,7 @@ public abstract class LivingEntity extends Entity implements Attackable {
Expand Down Expand Up @@ -80,7 +80,7 @@ index cccc60602360f25f0aeddbd16dad2bb63a1728a8..bf1b8ee85551ff1989369268edf80127
+ // Paper start - knockback events
+ Vec3 finalVelocity = new Vec3(vec3d.x / 2.0D - vec3d1.x, this.onGround() ? Math.min(0.4D, vec3d.y / 2.0D + d0) : vec3d.y, vec3d.z / 2.0D - vec3d1.z);
+ Vec3 diff = finalVelocity.subtract(vec3d);
+ io.papermc.paper.event.entity.EntityKnockbackEvent event = CraftEventFactory.callEntityKnockbackEvent((org.bukkit.craftbukkit.entity.CraftLivingEntity) this.getBukkitEntity(), attacker, cause, d0, diff);
+ io.papermc.paper.event.entity.EntityKnockbackEvent event = CraftEventFactory.callEntityKnockbackEvent((org.bukkit.craftbukkit.entity.CraftLivingEntity) this.getBukkitEntity(), attacker, attacker, cause, d0, diff);
+ // Paper end - knockback events
if (event.isCancelled()) {
return;
Expand Down Expand Up @@ -251,7 +251,7 @@ index de2bc78415ab4efb651030be6560d9c9778a1d17..1e00df3fa3c3b61daa3d59ee1173269a
public abstract void explode(Vec3 pos);

diff --git a/src/main/java/net/minecraft/world/level/Explosion.java b/src/main/java/net/minecraft/world/level/Explosion.java
index 6476c644d3da824c5ee4190cb45cde678ff1188f..a5f4ecb96c508b94a92a43c864c075f6c61e296e 100644
index 6476c644d3da824c5ee4190cb45cde678ff1188f..b216140a8be65e210250358af8daf49344850f20 100644
--- a/src/main/java/net/minecraft/world/level/Explosion.java
+++ b/src/main/java/net/minecraft/world/level/Explosion.java
@@ -297,13 +297,10 @@ public class Explosion {
Expand All @@ -266,7 +266,7 @@ index 6476c644d3da824c5ee4190cb45cde678ff1188f..a5f4ecb96c508b94a92a43c864c075f6
- // want the vector to be the relative velocity will the event provides the absolute velocity
- vec3d1 = (event.isCancelled()) ? Vec3.ZERO : new Vec3(event.getFinalKnockback().getX(), event.getFinalKnockback().getY(), event.getFinalKnockback().getZ()).subtract(entity.getDeltaMovement());
+ // Paper start - knockback events
+ io.papermc.paper.event.entity.EntityKnockbackEvent event = CraftEventFactory.callEntityKnockbackEvent((org.bukkit.craftbukkit.entity.CraftLivingEntity) entity.getBukkitEntity(), this.damageSource.getEntity() != null ? this.damageSource.getEntity() : this.source, io.papermc.paper.event.entity.EntityKnockbackEvent.Cause.EXPLOSION, d13, vec3d1);
+ io.papermc.paper.event.entity.EntityKnockbackEvent event = CraftEventFactory.callEntityKnockbackEvent((org.bukkit.craftbukkit.entity.CraftLivingEntity) entity.getBukkitEntity(), this.source, this.damageSource.getEntity() != null ? this.damageSource.getEntity() : this.source, io.papermc.paper.event.entity.EntityKnockbackEvent.Cause.EXPLOSION, d13, vec3d1);
+ vec3d1 = event.isCancelled() ? Vec3.ZERO : org.bukkit.craftbukkit.util.CraftVector.toNMS(event.getKnockback());
+ // Paper end - knockback events
}
Expand All @@ -282,33 +282,33 @@ index cfdabb93c2d30845af9108552ed9bee9929250ce..e1b7bd5c23ba79b84ad257b7fb45e251

- public static EntityKnockbackEvent callEntityKnockbackEvent(CraftLivingEntity entity, Entity attacker, EntityKnockbackEvent.KnockbackCause cause, double force, Vec3 raw, double x, double y, double z) {
- Vector bukkitRaw = new Vector(-raw.x, raw.y, -raw.z); // Due to how the knockback calculation works, we need to invert x and z.
-
- EntityKnockbackEvent event;
+ // Paper start - replace knockback events
+ public static io.papermc.paper.event.entity.EntityKnockbackEvent callEntityKnockbackEvent(CraftLivingEntity entity, Entity attacker, io.papermc.paper.event.entity.EntityKnockbackEvent.Cause cause, double force, Vec3 knockback) {
+ public static io.papermc.paper.event.entity.EntityKnockbackEvent callEntityKnockbackEvent(CraftLivingEntity entity, Entity pusher, Entity attacker, io.papermc.paper.event.entity.EntityKnockbackEvent.Cause cause, double force, Vec3 knockback) {
+ Vector apiKnockback = CraftVector.toBukkit(knockback);
+
+ final Vector currentVelocity = entity.getVelocity();
+ final Vector legacyFinalKnockback = currentVelocity.clone().add(apiKnockback);
+ final org.bukkit.event.entity.EntityKnockbackEvent.KnockbackCause legacyCause = org.bukkit.event.entity.EntityKnockbackEvent.KnockbackCause.valueOf(cause.name());
+ EntityKnockbackEvent legacyEvent;
if (attacker != null) {
- event = new EntityKnockbackByEntityEvent(entity, attacker.getBukkitEntity(), cause, force, new Vector(-raw.x, raw.y, -raw.z), new Vector(x, y, z));
+ legacyEvent = new EntityKnockbackByEntityEvent(entity, attacker.getBukkitEntity(), legacyCause, force, apiKnockback, legacyFinalKnockback);
} else {
- event = new EntityKnockbackEvent(entity, cause, force, new Vector(-raw.x, raw.y, -raw.z), new Vector(x, y, z));
+ if (pusher != null) {
+ legacyEvent = new EntityKnockbackByEntityEvent(entity, pusher.getBukkitEntity(), legacyCause, force, apiKnockback, legacyFinalKnockback);
+ } else {
+ legacyEvent = new EntityKnockbackEvent(entity, legacyCause, force, apiKnockback, legacyFinalKnockback);
}
+ }
+ legacyEvent.callEvent();

- Bukkit.getPluginManager().callEvent(event);
- EntityKnockbackEvent event;
+ final io.papermc.paper.event.entity.EntityKnockbackEvent event;
+ apiKnockback = legacyEvent.getFinalKnockback().subtract(currentVelocity);
+ if (attacker != null) {
if (attacker != null) {
- event = new EntityKnockbackByEntityEvent(entity, attacker.getBukkitEntity(), cause, force, new Vector(-raw.x, raw.y, -raw.z), new Vector(x, y, z));
+ event = new com.destroystokyo.paper.event.entity.EntityKnockbackByEntityEvent(entity, attacker.getBukkitEntity(), cause, (float) force, apiKnockback);
+ } else {
} else {
- event = new EntityKnockbackEvent(entity, cause, force, new Vector(-raw.x, raw.y, -raw.z), new Vector(x, y, z));
+ event = new io.papermc.paper.event.entity.EntityKnockbackEvent(entity, cause, apiKnockback);
+ }
}
-
- Bukkit.getPluginManager().callEvent(event);
+ event.setCancelled(legacyEvent.isCancelled());
+ event.callEvent();
return event;
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