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580a610550
When enabled, ender pearls will not load chunks and will save to the world instead of the player. Also changes the exploit config to be default false, as it only makes sense when legacy behavior is enabled.
44 lines
2.6 KiB
Diff
44 lines
2.6 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Lucavon <lucavonlp@gmail.com>
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Date: Tue, 23 Jul 2019 20:29:20 -0500
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Subject: [PATCH] Configurable projectile relative velocity
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This patch adds an option "disable relative projectile velocity", which, when
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enabled, will cause projectiles to ignore the shooter's current velocity,
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like they did in Minecraft 1.8 and prior.
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If a player is falling, for example, their shooting range will be drastically
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reduced, as a downwards velocity is applied to the projectile. This prevents
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players from saving themselves from falling off floating islands, for example,
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as a thrown ender pearl will not make it back to the island, while it would
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have in 1.8.
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While this could easily be done with plugins, too, there are multiple problems:
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P1) If multiple plugins cancel the velocity by subtracting the shooter's velocity
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from the projectile's velocity, the projectile's velocity would be different.
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As there's no way to detect whether the projectile's velocity has already been
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adjusted to ignore the player's velocity, plugins can't not do it if it's not
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necessary.
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P2) I've noticed some inconsistencies, e.g. weird velocity when shooting while
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using an elytra. Checking for those inconsistencies is possible, but not as
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efficient as just not applying the velocity in the first place.
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P3) Solutions for 1) and especially 2) might not be future-proof, while this
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server-internal fix makes this change future-proof.
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diff --git a/src/main/java/net/minecraft/world/entity/projectile/Projectile.java b/src/main/java/net/minecraft/world/entity/projectile/Projectile.java
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index 80637835a35dbfd7c7458b246ddee9d836e5101a..0e4ba92d97998937ccb83ebd60aaad3fb68f7546 100644
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--- a/src/main/java/net/minecraft/world/entity/projectile/Projectile.java
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+++ b/src/main/java/net/minecraft/world/entity/projectile/Projectile.java
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@@ -192,8 +192,11 @@ public abstract class Projectile extends Entity implements TraceableEntity {
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this.shoot((double) f5, (double) f6, (double) f7, speed, divergence);
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Vec3 vec3d = shooter.getKnownMovement();
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-
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+ // Paper start - allow disabling relative velocity
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+ if (!shooter.level().paperConfig().misc.disableRelativeProjectileVelocity) {
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this.setDeltaMovement(this.getDeltaMovement().add(vec3d.x, shooter.onGround() ? 0.0D : vec3d.y, vec3d.z));
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+ }
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+ // Paper end - allow disabling relative velocity
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}
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public static <T extends Projectile> T spawnProjectileFromRotation(Projectile.ProjectileFactory<T> creator, ServerLevel world, ItemStack projectileStack, LivingEntity shooter, float roll, float power, float divergence) {
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