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Mirror von https://github.com/PaperMC/Paper.git synchronisiert 2024-11-15 12:30:06 +01:00
Paper/patches/server/1014-Optimise-collision-checking-in-player-move-packet-ha.patch
Jake Potrebic 3e90a19183
Updated Upstream (Bukkit/CraftBukkit)
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
304e83eb PR-1002: Improve documentation and implementation of getMaxStackSize
e8215ea2 SPIGOT-7638: Library loader does not seem to resolve every dependency
79c595c0 SPIGOT-7637: Bad logic in checking nullability of AttributeModifier slots

CraftBukkit Changes:
91b1fc3f1 SPIGOT-7644: Fix ItemMeta#getAsString
4e77a81e1 SPIGOT-7615: PlayerLeashEntityEvent cancelled eats lead
996f660f3 Do not remove leash knot if leasing to an existing leash knot gets cancelled
f70367d42 SPIGOT-7643: Fix inverted leash event cancelled usage and remove leash knot if no entity gets leashed
7ddb48294 SPIGOT-7640: Abnormal jumping height of wind charge
080c8711e SPIGOT-7639: Incoming plugin channels not working
ad549847e Open a direct connection instead of pinging mojang server to check if it is reachable
38e2926c5 SPIGOT-7365: DamageCause blocked by shield should trigger invulnerableTime
2024-04-27 18:00:01 -07:00

171 Zeilen
11 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Thu, 2 Jul 2020 12:02:43 -0700
Subject: [PATCH] Optimise collision checking in player move packet handling
Move collision logic to just the hasNewCollision call instead of getCubes + hasNewCollision
CHECK ME
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index 4a1fe620ab2a6efadf734c1d7b09784e3865291c..5a99ca1121ef2163b194372c48bf03e95a96b8ea 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -572,7 +572,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
return;
}
- boolean flag = worldserver.noCollision(entity, entity.getBoundingBox().deflate(0.0625D));
+ AABB oldBox = entity.getBoundingBox(); // Paper - copy from player movement packet
d6 = d3 - this.vehicleLastGoodX; // Paper - diff on change, used for checking large move vectors above
d7 = d4 - this.vehicleLastGoodY - 1.0E-6D; // Paper - diff on change, used for checking large move vectors above
@@ -588,6 +588,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
}
entity.move(MoverType.PLAYER, new Vec3(d6, d7, d8));
+ boolean didCollide = toX != entity.getX() || toY != entity.getY() || toZ != entity.getZ(); // Paper - needed here as the difference in Y can be reset - also note: this is only a guess at whether collisions took place, floating point errors can make this true when it shouldn't be...
double d11 = d7;
d6 = d3 - entity.getX();
@@ -601,15 +602,23 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
boolean flag2 = false;
if (d10 > org.spigotmc.SpigotConfig.movedWronglyThreshold) { // Spigot
- flag2 = true;
+ flag2 = true; // Paper - diff on change, this should be moved wrongly
ServerGamePacketListenerImpl.LOGGER.warn("{} (vehicle of {}) moved wrongly! {}", new Object[]{entity.getName().getString(), this.player.getName().getString(), Math.sqrt(d10)});
}
entity.absMoveTo(d3, d4, d5, f, f1);
this.player.absMoveTo(d3, d4, d5, this.player.getYRot(), this.player.getXRot()); // CraftBukkit
- boolean flag3 = worldserver.noCollision(entity, entity.getBoundingBox().deflate(0.0625D));
- if (flag && (flag2 || !flag3)) {
+ // Paper start - optimise out extra getCubes
+ boolean teleportBack = flag2; // violating this is always a fail
+ if (!teleportBack) {
+ // note: only call after setLocation, or else getBoundingBox is wrong
+ AABB newBox = entity.getBoundingBox();
+ if (didCollide || !oldBox.equals(newBox)) {
+ teleportBack = this.hasNewCollision(worldserver, entity, oldBox, newBox);
+ } // else: no collision at all detected, why do we care?
+ }
+ if (teleportBack) { // Paper end - optimise out extra getCubes
entity.absMoveTo(d0, d1, d2, f, f1);
this.player.absMoveTo(d0, d1, d2, this.player.getYRot(), this.player.getXRot()); // CraftBukkit
this.send(new ClientboundMoveVehiclePacket(entity));
@@ -688,7 +697,32 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
}
private boolean noBlocksAround(Entity entity) {
- return entity.level().getBlockStates(entity.getBoundingBox().inflate(0.0625D).expandTowards(0.0D, -0.55D, 0.0D)).allMatch(BlockBehaviour.BlockStateBase::isAir);
+ // Paper start - stop using streams, this is already a known fixed problem in Entity#move
+ AABB box = entity.getBoundingBox().inflate(0.0625D).expandTowards(0.0D, -0.55D, 0.0D);
+ int minX = Mth.floor(box.minX);
+ int minY = Mth.floor(box.minY);
+ int minZ = Mth.floor(box.minZ);
+ int maxX = Mth.floor(box.maxX);
+ int maxY = Mth.floor(box.maxY);
+ int maxZ = Mth.floor(box.maxZ);
+
+ Level world = entity.level();
+ BlockPos.MutableBlockPos pos = new BlockPos.MutableBlockPos();
+
+ for (int y = minY; y <= maxY; ++y) {
+ for (int z = minZ; z <= maxZ; ++z) {
+ for (int x = minX; x <= maxX; ++x) {
+ pos.set(x, y, z);
+ BlockState type = world.getBlockStateIfLoaded(pos);
+ if (type != null && !type.isAir()) {
+ return false;
+ }
+ }
+ }
+ }
+
+ return true;
+ // Paper end - stop using streams, this is already a known fixed problem in Entity#move
}
@Override
@@ -1283,7 +1317,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
}
if (this.awaitingPositionFromClient != null) {
- if (this.tickCount - this.awaitingTeleportTime > 20) {
+ if (false && this.tickCount - this.awaitingTeleportTime > 20) { // Paper - this will greatly screw with clients with > 1000ms RTT
this.awaitingTeleportTime = this.tickCount;
this.teleport(this.awaitingPositionFromClient.x, this.awaitingPositionFromClient.y, this.awaitingPositionFromClient.z, this.player.getYRot(), this.player.getXRot());
}
@@ -1392,7 +1426,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
}
}
- AABB axisalignedbb = this.player.getBoundingBox();
+ AABB axisalignedbb = this.player.getBoundingBox(); // Paper - diff on change, should be old AABB
d6 = d0 - this.lastGoodX; // Paper - diff on change, used for checking large move vectors above
d7 = d1 - this.lastGoodY; // Paper - diff on change, used for checking large move vectors above
@@ -1434,6 +1468,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
this.player.move(MoverType.PLAYER, new Vec3(d6, d7, d8));
this.player.onGround = packet.isOnGround(); // CraftBukkit - SPIGOT-5810, SPIGOT-5835, SPIGOT-6828: reset by this.player.move
+ boolean didCollide = toX != this.player.getX() || toY != this.player.getY() || toZ != this.player.getZ(); // Paper - needed here as the difference in Y can be reset - also note: this is only a guess at whether collisions took place, floating point errors can make this true when it shouldn't be...
// Paper start - prevent position desync
if (this.awaitingPositionFromClient != null) {
return; // ... thanks Mojang for letting move calls teleport across dimensions.
@@ -1464,7 +1499,17 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
}
// Paper start - Add fail move event
- boolean teleportBack = !this.player.noPhysics && !this.player.isSleeping() && (movedWrongly && worldserver.noCollision(this.player, axisalignedbb) || this.isPlayerCollidingWithAnythingNew(worldserver, axisalignedbb, d0, d1, d2));
+ // Paper start - optimise out extra getCubes
+ boolean teleportBack = !this.player.noPhysics && !this.player.isSleeping() && movedWrongly;
+ this.player.absMoveTo(d0, d1, d2, f, f1); // prevent desync by tping to the set position, dropped for unknown reasons by mojang
+ if (!this.player.noPhysics && !this.player.isSleeping() && !teleportBack) {
+ AABB newBox = this.player.getBoundingBox();
+ if (didCollide || !axisalignedbb.equals(newBox)) {
+ // note: only call after setLocation, or else getBoundingBox is wrong
+ teleportBack = this.hasNewCollision(worldserver, this.player, axisalignedbb, newBox);
+ } // else: no collision at all detected, why do we care?
+ }
+ // Paper end - optimise out extra getCubes
if (teleportBack) {
io.papermc.paper.event.player.PlayerFailMoveEvent event = fireFailMove(io.papermc.paper.event.player.PlayerFailMoveEvent.FailReason.CLIPPED_INTO_BLOCK,
toX, toY, toZ, toYaw, toPitch, false);
@@ -1570,6 +1615,33 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
}
}
+ // Paper start - optimise out extra getCubes
+ private boolean hasNewCollision(final ServerLevel world, final Entity entity, final AABB oldBox, final AABB newBox) {
+ final List<AABB> collisionsBB = new java.util.ArrayList<>();
+ final List<VoxelShape> collisionsVoxel = new java.util.ArrayList<>();
+ io.papermc.paper.util.CollisionUtil.getCollisions(
+ world, entity, newBox, collisionsVoxel, collisionsBB,
+ io.papermc.paper.util.CollisionUtil.COLLISION_FLAG_COLLIDE_WITH_UNLOADED_CHUNKS | io.papermc.paper.util.CollisionUtil.COLLISION_FLAG_CHECK_BORDER,
+ null, null
+ );
+
+ for (int i = 0, len = collisionsBB.size(); i < len; ++i) {
+ final AABB box = collisionsBB.get(i);
+ if (!io.papermc.paper.util.CollisionUtil.voxelShapeIntersect(box, oldBox)) {
+ return true;
+ }
+ }
+
+ for (int i = 0, len = collisionsVoxel.size(); i < len; ++i) {
+ final VoxelShape voxel = collisionsVoxel.get(i);
+ if (!io.papermc.paper.util.CollisionUtil.voxelShapeIntersectNoEmpty(voxel, oldBox)) {
+ return true;
+ }
+ }
+
+ return false;
+ }
+ // Paper end - optimise out extra getCubes
private boolean isPlayerCollidingWithAnythingNew(LevelReader world, AABB box, double newX, double newY, double newZ) {
AABB axisalignedbb1 = this.player.getBoundingBox().move(newX - this.player.getX(), newY - this.player.getY(), newZ - this.player.getZ());
Iterable<VoxelShape> iterable = world.getCollisions(this.player, axisalignedbb1.deflate(9.999999747378752E-6D));