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Paper/Spigot-Server-Patches/0387-Configurable-projectile-relative-velocity.patch

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Optimize Network Manager to not need synchronization Removes synchronization from sending packets Makes normal packet sends no longer need to be wrapped and queued like it use to work. Adds more packet queue immunities on top of keep alive to let the following scenarios go out without delay: - Keep Alive - Chat - Kick - All of the packets during the Player Joined World event Hoping that latter one helps join timeout issues more too for slow connections. Removes processing packet queue off of main thread - for the few cases where it is allowed, order is not necessary nor should it even be happening concurrently in first place (handshaking/login/status) Ensures packets sent asynchronously are dispatched on main thread This helps ensure safety for ProtocolLib as packet listeners are commonly accessing world state. This will allow you to schedule a packet to be sent async, but itll be dispatched sync for packet listeners to process. This should solve some deadlock risks This may provide a decent performance improvement because thread synchronization incurs a cache reset so by avoiding ever entering a synchronized block, we get to avoid that, and packet sending is a really hot activity.
2020-05-06 11:22:03 +02:00
From 36f980352d9ce16a9745728412d3483c095aa88b Mon Sep 17 00:00:00 2001
Add option to disable relative projectile velocity Allows server owners to use 1.8 (and prior)'s projectile behavior (ignored shooter's velocity when calculating projectile's velocity). This patch adds an option "disable relative projectile velocity", which, when enabled, will cause projectiles to ignore the shooter's current velocity, like they did in Minecraft 1.8 and prior. If a player is falling, for example, their shooting range will be drastically reduced, as a downwards velocity is applied to the projectile. This prevents players from saving themselves from falling off floating islands, for example, as a thrown ender pearl will not make it back to the island, while it would have in 1.8. While this could easily be done with plugins, too, there are multiple problems: 1) If multiple plugins cancel the velocity by subtracting the shooter's velocity from the projectile's velocity, the projectile's velocity would be different. As there's no way to detect whether the projectile's velocity has already been adjusted to ignore the player's velocity, plugins can't not do it if it's not necessary. 2) I've noticed some inconsistencies, e.g. weird velocity when shooting while using an elytra. Checking for those inconsistencies is possible, but not as efficient as just not applying the velocity in the first place. 3) Solutions for 1) and especially 2) might not be future-proof, while this server-internal fix makes this change future-proof.
2019-07-24 03:30:36 +02:00
From: Lucavon <lucavonlp@gmail.com>
Date: Tue, 23 Jul 2019 20:29:20 -0500
Subject: [PATCH] Configurable projectile relative velocity
This patch adds an option "disable relative projectile velocity", which, when
nabled, will cause projectiles to ignore the shooter's current velocity,
like they did in Minecraft 1.8 and prior.
If a player is falling, for example, their shooting range will be drastically
reduced, as a downwards velocity is applied to the projectile. This prevents
players from saving themselves from falling off floating islands, for example,
as a thrown ender pearl will not make it back to the island, while it would
have in 1.8.
While this could easily be done with plugins, too, there are multiple problems:
P1) If multiple plugins cancel the velocity by subtracting the shooter's velocity
from the projectile's velocity, the projectile's velocity would be different.
As there's no way to detect whether the projectile's velocity has already been
adjusted to ignore the player's velocity, plugins can't not do it if it's not
necessary.
P2) I've noticed some inconsistencies, e.g. weird velocity when shooting while
using an elytra. Checking for those inconsistencies is possible, but not as
efficient as just not applying the velocity in the first place.
P3) Solutions for 1) and especially 2) might not be future-proof, while this
server-internal fix makes this change future-proof.
diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
Anti Xray cleanup Undo the accidental renaming of a method in 0aad8bf Aikar wanted to rename DataPalette#getDataBits(T object) to getOrCreateIdFor in 0aad8bf but he also accidentally renamed ChunkPacketInfo#getDataBitsIndex(int chunkSectionIndex) to getOrCreateIdForIndex. Remove chunk-edge-mode and chunk loading entirely from Anti-Xray The chunk-edge-mode is broken since several versions. Loading chunk neighbors for chunk edge obfuscation isn't needed anymore. Unlike in previous versions, these are under normal circumstances already loaded at the time we need them (plugins for example can bypass this). Use the modified methods and constructors everywhere Anti-Xray provides support for the default nms methods and constructors, which where modified by Anti-Xray to avoid breaking stuff (plugins) which somehow uses these methods. However, the modified versions of those methods and constructors should be used where possible.
2020-05-06 10:35:20 +02:00
index a3fc76b5122..90ba51e05bb 100644
Add option to disable relative projectile velocity Allows server owners to use 1.8 (and prior)'s projectile behavior (ignored shooter's velocity when calculating projectile's velocity). This patch adds an option "disable relative projectile velocity", which, when enabled, will cause projectiles to ignore the shooter's current velocity, like they did in Minecraft 1.8 and prior. If a player is falling, for example, their shooting range will be drastically reduced, as a downwards velocity is applied to the projectile. This prevents players from saving themselves from falling off floating islands, for example, as a thrown ender pearl will not make it back to the island, while it would have in 1.8. While this could easily be done with plugins, too, there are multiple problems: 1) If multiple plugins cancel the velocity by subtracting the shooter's velocity from the projectile's velocity, the projectile's velocity would be different. As there's no way to detect whether the projectile's velocity has already been adjusted to ignore the player's velocity, plugins can't not do it if it's not necessary. 2) I've noticed some inconsistencies, e.g. weird velocity when shooting while using an elytra. Checking for those inconsistencies is possible, but not as efficient as just not applying the velocity in the first place. 3) Solutions for 1) and especially 2) might not be future-proof, while this server-internal fix makes this change future-proof.
2019-07-24 03:30:36 +02:00
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
Anti Xray cleanup Undo the accidental renaming of a method in 0aad8bf Aikar wanted to rename DataPalette#getDataBits(T object) to getOrCreateIdFor in 0aad8bf but he also accidentally renamed ChunkPacketInfo#getDataBitsIndex(int chunkSectionIndex) to getOrCreateIdForIndex. Remove chunk-edge-mode and chunk loading entirely from Anti-Xray The chunk-edge-mode is broken since several versions. Loading chunk neighbors for chunk edge obfuscation isn't needed anymore. Unlike in previous versions, these are under normal circumstances already loaded at the time we need them (plugins for example can bypass this). Use the modified methods and constructors everywhere Anti-Xray provides support for the default nms methods and constructors, which where modified by Anti-Xray to avoid breaking stuff (plugins) which somehow uses these methods. However, the modified versions of those methods and constructors should be used where possible.
2020-05-06 10:35:20 +02:00
@@ -543,4 +543,9 @@ public class PaperWorldConfig {
Add option to disable relative projectile velocity Allows server owners to use 1.8 (and prior)'s projectile behavior (ignored shooter's velocity when calculating projectile's velocity). This patch adds an option "disable relative projectile velocity", which, when enabled, will cause projectiles to ignore the shooter's current velocity, like they did in Minecraft 1.8 and prior. If a player is falling, for example, their shooting range will be drastically reduced, as a downwards velocity is applied to the projectile. This prevents players from saving themselves from falling off floating islands, for example, as a thrown ender pearl will not make it back to the island, while it would have in 1.8. While this could easily be done with plugins, too, there are multiple problems: 1) If multiple plugins cancel the velocity by subtracting the shooter's velocity from the projectile's velocity, the projectile's velocity would be different. As there's no way to detect whether the projectile's velocity has already been adjusted to ignore the player's velocity, plugins can't not do it if it's not necessary. 2) I've noticed some inconsistencies, e.g. weird velocity when shooting while using an elytra. Checking for those inconsistencies is possible, but not as efficient as just not applying the velocity in the first place. 3) Solutions for 1) and especially 2) might not be future-proof, while this server-internal fix makes this change future-proof.
2019-07-24 03:30:36 +02:00
}
Anti Xray cleanup Undo the accidental renaming of a method in 0aad8bf Aikar wanted to rename DataPalette#getDataBits(T object) to getOrCreateIdFor in 0aad8bf but he also accidentally renamed ChunkPacketInfo#getDataBitsIndex(int chunkSectionIndex) to getOrCreateIdForIndex. Remove chunk-edge-mode and chunk loading entirely from Anti-Xray The chunk-edge-mode is broken since several versions. Loading chunk neighbors for chunk edge obfuscation isn't needed anymore. Unlike in previous versions, these are under normal circumstances already loaded at the time we need them (plugins for example can bypass this). Use the modified methods and constructors everywhere Anti-Xray provides support for the default nms methods and constructors, which where modified by Anti-Xray to avoid breaking stuff (plugins) which somehow uses these methods. However, the modified versions of those methods and constructors should be used where possible.
2020-05-06 10:35:20 +02:00
log("Anti-Xray: " + (antiXray ? "enabled" : "disabled") + " / Engine Mode: " + engineMode.getDescription() + " / Up to " + ((maxChunkSectionIndex + 1) * 16) + " blocks / Update Radius: " + updateRadius);
Add option to disable relative projectile velocity Allows server owners to use 1.8 (and prior)'s projectile behavior (ignored shooter's velocity when calculating projectile's velocity). This patch adds an option "disable relative projectile velocity", which, when enabled, will cause projectiles to ignore the shooter's current velocity, like they did in Minecraft 1.8 and prior. If a player is falling, for example, their shooting range will be drastically reduced, as a downwards velocity is applied to the projectile. This prevents players from saving themselves from falling off floating islands, for example, as a thrown ender pearl will not make it back to the island, while it would have in 1.8. While this could easily be done with plugins, too, there are multiple problems: 1) If multiple plugins cancel the velocity by subtracting the shooter's velocity from the projectile's velocity, the projectile's velocity would be different. As there's no way to detect whether the projectile's velocity has already been adjusted to ignore the player's velocity, plugins can't not do it if it's not necessary. 2) I've noticed some inconsistencies, e.g. weird velocity when shooting while using an elytra. Checking for those inconsistencies is possible, but not as efficient as just not applying the velocity in the first place. 3) Solutions for 1) and especially 2) might not be future-proof, while this server-internal fix makes this change future-proof.
2019-07-24 03:30:36 +02:00
}
+
+ public boolean disableRelativeProjectileVelocity;
+ private void disableRelativeProjectileVelocity() {
+ disableRelativeProjectileVelocity = getBoolean("game-mechanics.disable-relative-projectile-velocity", false);
+ }
}
diff --git a/src/main/java/net/minecraft/server/EntityArrow.java b/src/main/java/net/minecraft/server/EntityArrow.java
Anti Xray cleanup Undo the accidental renaming of a method in 0aad8bf Aikar wanted to rename DataPalette#getDataBits(T object) to getOrCreateIdFor in 0aad8bf but he also accidentally renamed ChunkPacketInfo#getDataBitsIndex(int chunkSectionIndex) to getOrCreateIdForIndex. Remove chunk-edge-mode and chunk loading entirely from Anti-Xray The chunk-edge-mode is broken since several versions. Loading chunk neighbors for chunk edge obfuscation isn't needed anymore. Unlike in previous versions, these are under normal circumstances already loaded at the time we need them (plugins for example can bypass this). Use the modified methods and constructors everywhere Anti-Xray provides support for the default nms methods and constructors, which where modified by Anti-Xray to avoid breaking stuff (plugins) which somehow uses these methods. However, the modified versions of those methods and constructors should be used where possible.
2020-05-06 10:35:20 +02:00
index 634e2bd3049..9c97edf9c9e 100644
Add option to disable relative projectile velocity Allows server owners to use 1.8 (and prior)'s projectile behavior (ignored shooter's velocity when calculating projectile's velocity). This patch adds an option "disable relative projectile velocity", which, when enabled, will cause projectiles to ignore the shooter's current velocity, like they did in Minecraft 1.8 and prior. If a player is falling, for example, their shooting range will be drastically reduced, as a downwards velocity is applied to the projectile. This prevents players from saving themselves from falling off floating islands, for example, as a thrown ender pearl will not make it back to the island, while it would have in 1.8. While this could easily be done with plugins, too, there are multiple problems: 1) If multiple plugins cancel the velocity by subtracting the shooter's velocity from the projectile's velocity, the projectile's velocity would be different. As there's no way to detect whether the projectile's velocity has already been adjusted to ignore the player's velocity, plugins can't not do it if it's not necessary. 2) I've noticed some inconsistencies, e.g. weird velocity when shooting while using an elytra. Checking for those inconsistencies is possible, but not as efficient as just not applying the velocity in the first place. 3) Solutions for 1) and especially 2) might not be future-proof, while this server-internal fix makes this change future-proof.
2019-07-24 03:30:36 +02:00
--- a/src/main/java/net/minecraft/server/EntityArrow.java
+++ b/src/main/java/net/minecraft/server/EntityArrow.java
@@ -85,7 +85,7 @@ public abstract class EntityArrow extends Entity implements IProjectile {
float f7 = MathHelper.cos(f1 * 0.017453292F) * MathHelper.cos(f * 0.017453292F);
this.shoot((double) f5, (double) f6, (double) f7, f3, f4);
- this.setMot(this.getMot().add(entity.getMot().x, entity.onGround ? 0.0D : entity.getMot().y, entity.getMot().z));
+ if (!entity.world.paperConfig.disableRelativeProjectileVelocity) this.setMot(this.getMot().add(entity.getMot().x, entity.onGround ? 0.0D : entity.getMot().y, entity.getMot().z)); // Paper - allow disabling relative velocity
}
@Override
diff --git a/src/main/java/net/minecraft/server/EntityProjectile.java b/src/main/java/net/minecraft/server/EntityProjectile.java
Anti Xray cleanup Undo the accidental renaming of a method in 0aad8bf Aikar wanted to rename DataPalette#getDataBits(T object) to getOrCreateIdFor in 0aad8bf but he also accidentally renamed ChunkPacketInfo#getDataBitsIndex(int chunkSectionIndex) to getOrCreateIdForIndex. Remove chunk-edge-mode and chunk loading entirely from Anti-Xray The chunk-edge-mode is broken since several versions. Loading chunk neighbors for chunk edge obfuscation isn't needed anymore. Unlike in previous versions, these are under normal circumstances already loaded at the time we need them (plugins for example can bypass this). Use the modified methods and constructors everywhere Anti-Xray provides support for the default nms methods and constructors, which where modified by Anti-Xray to avoid breaking stuff (plugins) which somehow uses these methods. However, the modified versions of those methods and constructors should be used where possible.
2020-05-06 10:35:20 +02:00
index 6c091b68087..f5c8074dcf1 100644
Add option to disable relative projectile velocity Allows server owners to use 1.8 (and prior)'s projectile behavior (ignored shooter's velocity when calculating projectile's velocity). This patch adds an option "disable relative projectile velocity", which, when enabled, will cause projectiles to ignore the shooter's current velocity, like they did in Minecraft 1.8 and prior. If a player is falling, for example, their shooting range will be drastically reduced, as a downwards velocity is applied to the projectile. This prevents players from saving themselves from falling off floating islands, for example, as a thrown ender pearl will not make it back to the island, while it would have in 1.8. While this could easily be done with plugins, too, there are multiple problems: 1) If multiple plugins cancel the velocity by subtracting the shooter's velocity from the projectile's velocity, the projectile's velocity would be different. As there's no way to detect whether the projectile's velocity has already been adjusted to ignore the player's velocity, plugins can't not do it if it's not necessary. 2) I've noticed some inconsistencies, e.g. weird velocity when shooting while using an elytra. Checking for those inconsistencies is possible, but not as efficient as just not applying the velocity in the first place. 3) Solutions for 1) and especially 2) might not be future-proof, while this server-internal fix makes this change future-proof.
2019-07-24 03:30:36 +02:00
--- a/src/main/java/net/minecraft/server/EntityProjectile.java
+++ b/src/main/java/net/minecraft/server/EntityProjectile.java
@@ -43,7 +43,7 @@ public abstract class EntityProjectile extends Entity implements IProjectile {
this.shoot((double) f5, (double) f6, (double) f7, f3, f4);
Vec3D vec3d = entity.getMot();
- this.setMot(this.getMot().add(vec3d.x, entity.onGround ? 0.0D : vec3d.y, vec3d.z));
+ if (!entity.world.paperConfig.disableRelativeProjectileVelocity) this.setMot(this.getMot().add(vec3d.x, entity.onGround ? 0.0D : vec3d.y, vec3d.z)); // Paper - allow disabling relative velocity
}
@Override
--
Updated Upstream (Bukkit/CraftBukkit) Upstream has released updates that appears 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: b999860d SPIGOT-2304: Add LootGenerateEvent CraftBukkit Changes: 77fd87e4 SPIGOT-2304: Implement LootGenerateEvent a1a705ee SPIGOT-5566: Doused campfires & fires should call EntityChangeBlockEvent 41712edd SPIGOT-5707: PersistentDataHolder not Persistent on API dropped Item
2020-05-02 00:03:47 +02:00
2.26.2
Add option to disable relative projectile velocity Allows server owners to use 1.8 (and prior)'s projectile behavior (ignored shooter's velocity when calculating projectile's velocity). This patch adds an option "disable relative projectile velocity", which, when enabled, will cause projectiles to ignore the shooter's current velocity, like they did in Minecraft 1.8 and prior. If a player is falling, for example, their shooting range will be drastically reduced, as a downwards velocity is applied to the projectile. This prevents players from saving themselves from falling off floating islands, for example, as a thrown ender pearl will not make it back to the island, while it would have in 1.8. While this could easily be done with plugins, too, there are multiple problems: 1) If multiple plugins cancel the velocity by subtracting the shooter's velocity from the projectile's velocity, the projectile's velocity would be different. As there's no way to detect whether the projectile's velocity has already been adjusted to ignore the player's velocity, plugins can't not do it if it's not necessary. 2) I've noticed some inconsistencies, e.g. weird velocity when shooting while using an elytra. Checking for those inconsistencies is possible, but not as efficient as just not applying the velocity in the first place. 3) Solutions for 1) and especially 2) might not be future-proof, while this server-internal fix makes this change future-proof.
2019-07-24 03:30:36 +02:00
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