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Paper/patches/server/0721-Collision-API.patch
Spottedleaf 8c5b837e05 Rework async chunk api implementation
Firstly, the old methods all routed to the CompletableFuture method.
However, the CF method could not guarantee that if the caller
was off-main that the future would be "completed" on-main. Since
the callback methods used the CF one, this meant that the callback
methods did not guarantee that the callbacks were to be called on
the main thread.

Now, all methods route to getChunkAtAsync(x, z, gen, urgent, cb)
so that the methods with the callback are guaranteed to invoke
the callback on the main thread. The CF behavior remains unchanged;
it may still appear to complete on main if invoked off-main.

Secondly, remove the scheduleOnMain invocation in the async
chunk completion. This unnecessarily delays the callback
by 1 tick.

Thirdly, add getChunksAtAsync(minX, minZ, maxX, maxZ, ...) which
will load chunks within an area. This method is provided as a helper
as keeping all chunks loaded within an area can be complicated to
implement for plugins (due to the lacking ticket API), and is
already implemented internally anyways.

Fourthly, remove the ticket addition that occured with getChunkAt
and getChunkAtAsync. The ticket addition may delay the unloading
of the chunk unnecessarily. It also fixes a very rare timing bug
where the future/callback would be completed after the chunk
unloads.
2024-11-18 23:00:59 -08:00

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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 a7748f4b7c5a1630937c702b3fd5fded93793d64..a93a879117ee1eb06842242aa03f757a4a676946 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java
@@ -549,5 +549,12 @@ 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 8d2f6bb43fb69a4a1e2085960eb24f4397072499..fc48a1de886d48da4cb384472f48cdba974034dd 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
@@ -1189,4 +1189,20 @@ 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
}