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01a13871de
Patch documentation to come Issues with the old system that are fixed now: - World generation does not scale with cpu cores effectively. - Relies on the main thread for scheduling and maintaining chunk state, dropping chunk load/generate rates at lower tps. - Unreliable prioritisation of chunk gen/load calls that block the main thread. - Shutdown logic is utterly unreliable, as it has to wait for all chunks to unload - is it guaranteed that the chunk system is in a state on shutdown that it can reliably do this? Watchdog shutdown also typically failed due to thread checks, which is now resolved. - Saving of data is not unified (i.e can save chunk data without saving entity data, poses problems for desync if shutdown is really abnormal. - Entities are not loaded with chunks. This caused quite a bit of headache for Chunk#getEntities API, but now the new chunk system loads entities with chunks so that they are ready whenever the chunk loads in. Effectively brings the behavior back to 1.16 era, but still storing entities in their own separate regionfiles. The above list is not complete. The patch documentation will complete it. New chunk system hard relies on starlight and dataconverter, and most importantly the new concurrent utilities in ConcurrentUtil. Some of the old async chunk i/o interface (i.e the old file io thread reroutes _some_ calls to the new file io thread) is kept for plugin compat reasons. It will be removed in the next major version of minecraft. The old legacy chunk system patches have been moved to the removed folder in case we need them again.
71 lines
4.1 KiB
Diff
71 lines
4.1 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Spottedleaf <Spottedleaf@users.noreply.github.com>
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Date: Mon, 2 Aug 2021 10:10:40 +0200
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Subject: [PATCH] Improve boat collision performance
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diff --git a/src/main/java/net/minecraft/Util.java b/src/main/java/net/minecraft/Util.java
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index 4fce18c52c8144460ebf0c1e336dce712d796cc6..384ddb03af26ae360fd22e2e231d9d14d6ad0865 100644
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--- a/src/main/java/net/minecraft/Util.java
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+++ b/src/main/java/net/minecraft/Util.java
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@@ -112,6 +112,7 @@ public class Util {
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}).findFirst().orElseThrow(() -> {
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return new IllegalStateException("No jar file system provider found");
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});
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+ public static final double COLLISION_EPSILON = 1.0E-7; // Paper
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private static Consumer<String> thePauser = (message) -> {
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};
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diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
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index 6e2301f58f103b70b491fd59d5a6657593ac94b7..76ef3f561e3f8e0c0f9732feb64aacca93b57431 100644
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--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
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+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
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@@ -1341,7 +1341,7 @@ public abstract class LivingEntity extends Entity {
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if (!source.isProjectile()) {
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Entity entity = source.getDirectEntity();
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- if (entity instanceof LivingEntity) {
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+ if (entity instanceof LivingEntity && entity.distanceToSqr(this) <= (200.0D * 200.0D)) { // Paper
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this.blockUsingShield((LivingEntity) entity);
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}
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}
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@@ -1449,11 +1449,12 @@ public abstract class LivingEntity extends Entity {
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}
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if (entity1 != null) {
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- double d0 = entity1.getX() - this.getX();
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+ final boolean far = entity1.distanceToSqr(this) > (200.0 * 200.0); // Paper
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+ double d0 = far ? (Math.random() - Math.random()) : entity1.getX() - this.getX(); // Paper
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double d1;
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- for (d1 = entity1.getZ() - this.getZ(); d0 * d0 + d1 * d1 < 1.0E-4D; d1 = (Math.random() - Math.random()) * 0.01D) {
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+ for (d1 = far ? Math.random() - Math.random() : entity1.getZ() - this.getZ(); d0 * d0 + d1 * d1 < 1.0E-4D; d1 = (Math.random() - Math.random()) * 0.01D) { // Paper
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d0 = (Math.random() - Math.random()) * 0.01D;
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}
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@@ -2163,7 +2164,7 @@ public abstract class LivingEntity extends Entity {
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this.hurtCurrentlyUsedShield((float) -event.getDamage(DamageModifier.BLOCKING));
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Entity entity = damagesource.getDirectEntity();
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- if (entity instanceof LivingEntity) {
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+ if (entity instanceof LivingEntity && entity.distanceToSqr(this) <= (200.0D * 200.0D)) { // Paper
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this.blockUsingShield((LivingEntity) entity);
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}
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}
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diff --git a/src/main/java/net/minecraft/world/entity/vehicle/Boat.java b/src/main/java/net/minecraft/world/entity/vehicle/Boat.java
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index 5641a7b5c5e3d93cddabd91703c6f001700c5869..29da8a42406feccf7932097b07b1d32a38fa96b7 100644
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--- a/src/main/java/net/minecraft/world/entity/vehicle/Boat.java
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+++ b/src/main/java/net/minecraft/world/entity/vehicle/Boat.java
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@@ -691,8 +691,8 @@ public class Boat extends Entity {
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this.invFriction = 0.05F;
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if (this.oldStatus == Boat.Status.IN_AIR && this.status != Boat.Status.IN_AIR && this.status != Boat.Status.ON_LAND) {
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this.waterLevel = this.getY(1.0D);
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- this.setPos(this.getX(), (double) (this.getWaterLevelAbove() - this.getBbHeight()) + 0.101D, this.getZ());
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- this.setDeltaMovement(this.getDeltaMovement().multiply(1.0D, 0.0D, 1.0D));
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+ this.move(MoverType.SELF, new Vec3(0.0, ((double) (this.getWaterLevelAbove() - this.getBbHeight()) + 0.101D) - this.getY(), 0.0)); // Paper
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+ this.setDeltaMovement(this.getDeltaMovement().multiply(1.0D, 0.0D, 1.0D)); // Paper
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this.lastYd = 0.0D;
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this.status = Boat.Status.IN_WATER;
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} else {
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