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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.
75 lines
4.9 KiB
Diff
75 lines
4.9 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: TwoLeggedCat <80929284+TwoLeggedCat@users.noreply.github.com>
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Date: Sat, 29 May 2021 14:33:25 -0500
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Subject: [PATCH] Line Of Sight Changes
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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 d427cd90177b14062ea56dcf6fa5fedddcdbb624..4dee04c8012245b94191454943d68ee20fae887a 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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@@ -3506,7 +3506,8 @@ public abstract class LivingEntity extends Entity {
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Vec3 vec3d = new Vec3(this.getX(), this.getEyeY(), this.getZ());
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Vec3 vec3d1 = new Vec3(entity.getX(), entity.getEyeY(), entity.getZ());
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- return vec3d1.distanceTo(vec3d) > 128.0D ? false : this.level.clip(new ClipContext(vec3d, vec3d1, ClipContext.Block.COLLIDER, ClipContext.Fluid.NONE, this)).getType() == HitResult.Type.MISS;
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+ // Paper - diff on change - used in CraftLivingEntity#hasLineOfSight(Location) and CraftWorld#lineOfSightExists
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+ return vec3d1.distanceToSqr(vec3d) > 128D * 128D ? false : this.level.clip(new ClipContext(vec3d, vec3d1, ClipContext.Block.COLLIDER, ClipContext.Fluid.NONE, this)).getType() == HitResult.Type.MISS; // Paper - use distanceToSqr
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}
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}
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diff --git a/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java b/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java
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index 84d84ceda1855bd1d11b2917c16fdb845a7600fe..d1fca0e3227b5f37c11367548be362f5a49b6a71 100644
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--- a/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java
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+++ b/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java
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@@ -944,5 +944,16 @@ public abstract class CraftRegionAccessor implements RegionAccessor {
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public org.bukkit.NamespacedKey getKey() {
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return org.bukkit.craftbukkit.util.CraftNamespacedKey.fromMinecraft(this.getHandle().getLevel().dimension().location());
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}
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+
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+ public boolean lineOfSightExists(Location from, Location to) {
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+ Preconditions.checkArgument(from != null, "from parameter in lineOfSightExists cannot be null");
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+ Preconditions.checkArgument(to != null, "to parameter in lineOfSightExists cannot be null");
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+ if (from.getWorld() != to.getWorld()) return false;
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+ net.minecraft.world.phys.Vec3 vec3d = new net.minecraft.world.phys.Vec3(from.getX(), from.getY(), from.getZ());
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+ net.minecraft.world.phys.Vec3 vec3d1 = new net.minecraft.world.phys.Vec3(to.getX(), to.getY(), to.getZ());
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+ if (vec3d1.distanceToSqr(vec3d) > 128D * 128D) return false; //Return early if the distance is greater than 128 blocks
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+
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+ return this.getHandle().clip(new net.minecraft.world.level.ClipContext(vec3d, vec3d1, net.minecraft.world.level.ClipContext.Block.COLLIDER, net.minecraft.world.level.ClipContext.Fluid.NONE, null)).getType() == net.minecraft.world.phys.HitResult.Type.MISS;
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+ }
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// Paper end
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}
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diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
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index 3ba00e72d9760ec0dcde93d54cd7868eea23ec8a..310dcf72f24fcbb86bc5b118536a8ebfc084eb7e 100644
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--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
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+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
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@@ -29,6 +29,9 @@ import net.minecraft.world.entity.projectile.ThrownEgg;
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import net.minecraft.world.entity.projectile.ThrownEnderpearl;
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import net.minecraft.world.entity.projectile.ThrownExperienceBottle;
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import net.minecraft.world.entity.projectile.ThrownTrident;
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+import net.minecraft.world.level.ClipContext;
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+import net.minecraft.world.phys.HitResult;
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+import net.minecraft.world.phys.Vec3;
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import org.apache.commons.lang.Validate;
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import org.bukkit.FluidCollisionMode;
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import org.bukkit.Location;
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@@ -559,6 +562,18 @@ public class CraftLivingEntity extends CraftEntity implements LivingEntity {
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return this.getHandle().hasLineOfSight(((CraftEntity) other).getHandle());
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}
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+ // Paper start
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+ @Override
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+ public boolean hasLineOfSight(Location loc) {
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+ if (this.getHandle().level != ((CraftWorld) loc.getWorld()).getHandle()) return false;
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+ Vec3 vec3d = new Vec3(this.getHandle().getX(), this.getHandle().getEyeY(), this.getHandle().getZ());
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+ Vec3 vec3d1 = new Vec3(loc.getX(), loc.getY(), loc.getZ());
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+ if (vec3d1.distanceToSqr(vec3d) > 128D * 128D) return false; //Return early if the distance is greater than 128 blocks
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+
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+ return this.getHandle().level.clip(new ClipContext(vec3d, vec3d1, ClipContext.Block.COLLIDER, ClipContext.Fluid.NONE, this.getHandle())).getType() == HitResult.Type.MISS;
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+ }
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+ // Paper end
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+
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@Override
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public boolean getRemoveWhenFarAway() {
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return this.getHandle() instanceof Mob && !((Mob) this.getHandle()).isPersistenceRequired();
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