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Mirror von https://github.com/PaperMC/Paper.git synchronisiert 2024-12-15 11:00:06 +01:00
Paper/patches/server/0728-Collision-API.patch
Bjarne Koll c5a10665b8
Remove wall-time / unused skip tick protection (#11412)
Spigot still maintains some partial implementation of "tick skipping", a
practice in which the MinecraftServer.currentTick field is updated not
by an increment of one per actual tick, but instead set to
System.currentTimeMillis() / 50. This behaviour means that the tracked
tick may "skip" a tick value in case a previous tick took more than the
expected 50ms.

To compensate for this in important paths, spigot/craftbukkit
implements "wall-time". Instead of incrementing/decrementing ticks on
block entities/entities by one for each call to their tick() method,
they instead increment/decrement important values, like
an ItemEntity's age or pickupDelay, by the difference of
`currentTick - lastTick`, where `lastTick` is the value of
`currentTick` during the last tick() call.

These "fixes" however do not play nicely with minecraft's simulation
distance as entities/block entities implementing the above behaviour
would "catch up" their values when moving from a non-ticking chunk to a
ticking one as their `lastTick` value remains stuck on the last tick in
a ticking chunk and hence lead to a large "catch up" once ticked again.

Paper completely removes the "tick skipping" behaviour (See patch
"Further-improve-server-tick-loop"), making the above precautions
completely unnecessary, which also rids paper of the previous described
incompatibility with non-ticking chunks.
2024-09-19 16:36:07 +02:00

49 Zeilen
2.7 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Owen1212055 <23108066+Owen1212055@users.noreply.github.com>
Date: Wed, 6 Oct 2021 20:10:44 -0400
Subject: [PATCH] Collision API
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java b/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java
index f6dd8665b9f6e2a8ff396deba8a021e695bedf7e..3c1937b43b6834ae0ffdd8d22ac32a776bc7fb64 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java
@@ -543,5 +543,12 @@ public abstract class CraftRegionAccessor implements RegionAccessor {
return this.getHandle().clip(new net.minecraft.world.level.ClipContext(start, end, net.minecraft.world.level.ClipContext.Block.COLLIDER, net.minecraft.world.level.ClipContext.Fluid.NONE, net.minecraft.world.phys.shapes.CollisionContext.empty())).getType() == net.minecraft.world.phys.HitResult.Type.MISS;
}
+
+ @Override
+ public boolean hasCollisionsIn(@org.jetbrains.annotations.NotNull org.bukkit.util.BoundingBox boundingBox) {
+ net.minecraft.world.phys.AABB aabb = new net.minecraft.world.phys.AABB(boundingBox.getMinX(), boundingBox.getMinY(), boundingBox.getMinZ(), boundingBox.getMaxX(), boundingBox.getMaxY(), boundingBox.getMaxZ());
+
+ return !this.getHandle().noCollision(aabb);
+ }
// Paper end
}
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
index 94051ae8ea93ab144f3767345b1cda0438d2afc6..f950102a324d07aeba260bfa82fe88728f2362e5 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
@@ -1193,4 +1193,20 @@ public abstract class CraftEntity implements org.bukkit.entity.Entity {
return this.getHandle().noPhysics;
}
// Paper end - missing entity api
+
+ // Paper start - Collision API
+ @Override
+ public boolean collidesAt(@org.jetbrains.annotations.NotNull Location location) {
+ net.minecraft.world.phys.AABB aabb = this.getHandle().getBoundingBoxAt(location.getX(), location.getY(), location.getZ());
+
+ return !this.getHandle().level().noCollision(this.getHandle(), aabb);
+ }
+
+ @Override
+ public boolean wouldCollideUsing(@org.jetbrains.annotations.NotNull BoundingBox boundingBox) {
+ net.minecraft.world.phys.AABB aabb = new AABB(boundingBox.getMinX(), boundingBox.getMinY(), boundingBox.getMinZ(), boundingBox.getMaxX(), boundingBox.getMaxY(), boundingBox.getMaxZ());
+
+ return !this.getHandle().level().noCollision(this.getHandle(), aabb);
+ }
+ // Paper end - Collision API
}