PaperMC/Spigot-Server-Patches/0227-Implement-EntityKnockbackByEntityEvent.patch
Shane Freeder abca14ff96 Updated Upstream (Bukkit/CraftBukkit)
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
6f9fe1d9 #562: Add API to set equipment silently
bcddb754 SPIGOT-6256: Add method to check if the entity is in water

CraftBukkit Changes:
878b4375 #772: Add API to set equipment silently
22d7fcc9 SPIGOT-6256: Add method to check if the entity is in water
2020-12-21 07:56:22 +00:00

93 lines
6.1 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Brokkonaut <hannos17@gmx.de>
Date: Mon, 18 Jun 2018 15:46:23 +0200
Subject: [PATCH] Implement EntityKnockbackByEntityEvent
This event is called when an entity receives knockback by another entity.
diff --git a/src/main/java/net/minecraft/server/EntityHuman.java b/src/main/java/net/minecraft/server/EntityHuman.java
index 88a23d3e8f251304f22818b8c65590c39c42cd80..e59d54755542b9053e64618495a3fa79cb084915 100644
--- a/src/main/java/net/minecraft/server/EntityHuman.java
+++ b/src/main/java/net/minecraft/server/EntityHuman.java
@@ -1080,7 +1080,7 @@ public abstract class EntityHuman extends EntityLiving {
if (flag5) {
if (i > 0) {
if (entity instanceof EntityLiving) {
- ((EntityLiving) entity).a((float) i * 0.5F, (double) MathHelper.sin(this.yaw * 0.017453292F), (double) (-MathHelper.cos(this.yaw * 0.017453292F)));
+ ((EntityLiving) entity).doKnockback((float) i * 0.5F, (double) MathHelper.sin(this.yaw * 0.017453292F), (double) (-MathHelper.cos(this.yaw * 0.017453292F)), this); // Paper
} else {
entity.i((double) (-MathHelper.sin(this.yaw * 0.017453292F) * (float) i * 0.5F), 0.1D, (double) (MathHelper.cos(this.yaw * 0.017453292F) * (float) i * 0.5F));
}
@@ -1104,7 +1104,7 @@ public abstract class EntityHuman extends EntityLiving {
if (entityliving != this && entityliving != entity && !this.r(entityliving) && (!(entityliving instanceof EntityArmorStand) || !((EntityArmorStand) entityliving).isMarker()) && this.h((Entity) entityliving) < 9.0D) {
// CraftBukkit start - Only apply knockback if the damage hits
if (entityliving.damageEntity(DamageSource.playerAttack(this).sweep(), f4)) {
- entityliving.a(0.4F, (double) MathHelper.sin(this.yaw * 0.017453292F), (double) (-MathHelper.cos(this.yaw * 0.017453292F)));
+ entityliving.doKnockback(0.4F, (double) MathHelper.sin(this.yaw * 0.017453292F), (double) (-MathHelper.cos(this.yaw * 0.017453292F)), this); // Paper
}
// CraftBukkit end
}
diff --git a/src/main/java/net/minecraft/server/EntityInsentient.java b/src/main/java/net/minecraft/server/EntityInsentient.java
index 1b0c4234cf579b35f404c129c2c6d3266b670b09..38bf49da2cc6b2f7068462ea8b57cf3a76ae1779 100644
--- a/src/main/java/net/minecraft/server/EntityInsentient.java
+++ b/src/main/java/net/minecraft/server/EntityInsentient.java
@@ -1500,7 +1500,7 @@ public abstract class EntityInsentient extends EntityLiving {
if (flag) {
if (f1 > 0.0F && entity instanceof EntityLiving) {
- ((EntityLiving) entity).a(f1 * 0.5F, (double) MathHelper.sin(this.yaw * 0.017453292F), (double) (-MathHelper.cos(this.yaw * 0.017453292F)));
+ ((EntityLiving) entity).doKnockback(f1 * 0.5F, (double) MathHelper.sin(this.yaw * 0.017453292F), (double) (-MathHelper.cos(this.yaw * 0.017453292F)), this); // Paper
this.setMot(this.getMot().d(0.6D, 1.0D, 0.6D));
}
diff --git a/src/main/java/net/minecraft/server/EntityLiving.java b/src/main/java/net/minecraft/server/EntityLiving.java
index 134da62b90b7a167cd580680a986dd470a3b9aad..991839c39206ec984c442776693afdf50f90b409 100644
--- a/src/main/java/net/minecraft/server/EntityLiving.java
+++ b/src/main/java/net/minecraft/server/EntityLiving.java
@@ -1246,7 +1246,7 @@ public abstract class EntityLiving extends Entity {
}
this.ap = (float) (MathHelper.d(d1, d0) * 57.2957763671875D - (double) this.yaw);
- this.a(0.4F, d0, d1);
+ this.doKnockback(0.4F, d0, d1, entity1); // Paper
} else {
this.ap = (float) ((int) (Math.random() * 2.0D) * 180);
}
@@ -1294,7 +1294,7 @@ public abstract class EntityLiving extends Entity {
}
protected void e(EntityLiving entityliving) {
- entityliving.a(0.5F, entityliving.locX() - this.locX(), entityliving.locZ() - this.locZ());
+ entityliving.doKnockback(0.5F, entityliving.locX() - this.locX(), entityliving.locZ() - this.locZ(), this); // Paper
}
private boolean f(DamageSource damagesource) {
@@ -1530,6 +1530,11 @@ public abstract class EntityLiving extends Entity {
}
public void a(float f, double d0, double d1) {
+ // Paper start - add knockbacking entity parameter
+ this.doKnockback(f, d0, d1, null);
+ }
+ public void doKnockback(float f, double d0, double d1, Entity knockingBackEntity) {
+ // Paper end - add knockbacking entity parameter
f = (float) ((double) f * (1.0D - this.b(GenericAttributes.KNOCKBACK_RESISTANCE)));
if (f > 0.0F) {
this.impulse = true;
@@ -1537,6 +1542,16 @@ public abstract class EntityLiving extends Entity {
Vec3D vec3d1 = (new Vec3D(d0, 0.0D, d1)).d().a((double) f);
this.setMot(vec3d.x / 2.0D - vec3d1.x, this.onGround ? Math.min(0.4D, vec3d.y / 2.0D + (double) f) : vec3d.y, vec3d.z / 2.0D - vec3d1.z);
+
+ // Paper start - call EntityKnockbackByEntityEvent
+ Vec3D currentMot = this.getMot();
+ org.bukkit.util.Vector delta = new org.bukkit.util.Vector(currentMot.x - vec3d.x, currentMot.y - vec3d.y, currentMot.z - vec3d.z);
+ // Restore old velocity to be able to access it in the event
+ this.setMot(vec3d);
+ if (knockingBackEntity == null || new com.destroystokyo.paper.event.entity.EntityKnockbackByEntityEvent((LivingEntity) getBukkitEntity(), knockingBackEntity.getBukkitEntity(), f, delta).callEvent()) {
+ this.setMot(vec3d.x + delta.getX(), vec3d.y + delta.getY(), vec3d.z + delta.getZ());
+ }
+ // Paper end
}
}