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26734e83b0
* Updated Upstream (Bukkit/CraftBukkit/Spigot) 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: 8085edde SPIGOT-6918: Add SpawnCategory API and configurations for Axolotls 04c7e13c PR-719: Add Player Profile API 71564210 SPIGOT-6910: Add BlockDamageAbortEvent CraftBukkit Changes: febaa1c6 SPIGOT-6918: Add SpawnCategory API and configurations for Axolotls 9dafd109 Don't send updates over large distances bdac46b0 SPIGOT-6782: EntityPortalEvent should not destroy entity when setTo() uses same world as getFrom() 8f361ece PR-1002: Add Player Profile API 911875d4 Increase outdated build delay e5f8a767 SPIGOT-6917: Use main scoreboard for /trigger a672a531 Clean up callBlockDamageEvent 8e1bdeef SPIGOT-6910: Add BlockDamageAbortEvent Spigot Changes: 6edb62f3 Rebuild patches 7fbc6a1e Rebuild patches * Updated Upstream (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 CraftBukkit Changes: de951355 SPIGOT-6927: Fix default value of spawn-limits in Worlds
105 lines
7.2 KiB
Diff
105 lines
7.2 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Spottedleaf <spottedleaf@spottedleaf.dev>
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Date: Sun, 17 May 2020 23:47:33 -0700
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Subject: [PATCH] Fix for large move vectors crashing server
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Check movement distance also based on current position.
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diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
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index b87208de4204c789c9e1e9eaa588997bab7bb8d8..3ab42e5c83d96f05f60c53a200b579193b4b57fa 100644
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--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
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+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
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@@ -504,20 +504,31 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
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if (entity != this.player && entity.getControllingPassenger() == this.player && entity == this.lastVehicle) {
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ServerLevel worldserver = this.player.getLevel();
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- double d0 = entity.getX();
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- double d1 = entity.getY();
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- double d2 = entity.getZ();
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- double d3 = ServerGamePacketListenerImpl.clampHorizontal(packet.getX());
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- double d4 = ServerGamePacketListenerImpl.clampVertical(packet.getY());
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- double d5 = ServerGamePacketListenerImpl.clampHorizontal(packet.getZ());
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+ double d0 = entity.getX();final double fromX = d0; // Paper - OBFHELPER
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+ double d1 = entity.getY();final double fromY = d1; // Paper - OBFHELPER
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+ double d2 = entity.getZ();final double fromZ = d2; // Paper - OBFHELPER
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+ double d3 = ServerGamePacketListenerImpl.clampHorizontal(packet.getX());final double toX = d3; // Paper - OBFHELPER
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+ double d4 = ServerGamePacketListenerImpl.clampVertical(packet.getY());final double toY = d4; // Paper - OBFHELPER
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+ double d5 = ServerGamePacketListenerImpl.clampHorizontal(packet.getZ());final double toZ = d5; // Paper - OBFHELPER
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float f = Mth.wrapDegrees(packet.getYRot());
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float f1 = Mth.wrapDegrees(packet.getXRot());
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double d6 = d3 - this.vehicleFirstGoodX;
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double d7 = d4 - this.vehicleFirstGoodY;
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double d8 = d5 - this.vehicleFirstGoodZ;
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double d9 = entity.getDeltaMovement().lengthSqr();
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- double d10 = d6 * d6 + d7 * d7 + d8 * d8;
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-
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+ // Paper start - fix large move vectors killing the server
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+ double currDeltaX = toX - fromX;
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+ double currDeltaY = toY - fromY;
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+ double currDeltaZ = toZ - fromZ;
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+ double d10 = Math.max(d6 * d6 + d7 * d7 + d8 * d8, (currDeltaX * currDeltaX + currDeltaY * currDeltaY + currDeltaZ * currDeltaZ) - 1);
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+ // Paper end - fix large move vectors killing the server
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+
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+ // Paper start - fix large move vectors killing the server
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+ double otherFieldX = d3 - this.vehicleLastGoodX;
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+ double otherFieldY = d4 - this.vehicleLastGoodY - 1.0E-6D;
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+ double otherFieldZ = d5 - this.vehicleLastGoodZ;
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+ d10 = Math.max(d10, (otherFieldX * otherFieldX + otherFieldY * otherFieldY + otherFieldZ * otherFieldZ) - 1);
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+ // Paper end - fix large move vectors killing the server
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// CraftBukkit start - handle custom speeds and skipped ticks
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this.allowedPlayerTicks += (System.currentTimeMillis() / 50) - this.lastTick;
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@@ -560,9 +571,9 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
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boolean flag = worldserver.noCollision(entity, entity.getBoundingBox().deflate(0.0625D));
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- d6 = d3 - this.vehicleLastGoodX;
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- d7 = d4 - this.vehicleLastGoodY - 1.0E-6D;
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- d8 = d5 - this.vehicleLastGoodZ;
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+ d6 = d3 - this.vehicleLastGoodX; // Paper - diff on change, used for checking large move vectors above
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+ d7 = d4 - this.vehicleLastGoodY - 1.0E-6D; // Paper - diff on change, used for checking large move vectors above
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+ d8 = d5 - this.vehicleLastGoodZ; // Paper - diff on change, used for checking large move vectors above
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entity.move(MoverType.PLAYER, new Vec3(d6, d7, d8));
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double d11 = d7;
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@@ -1236,14 +1247,25 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
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float prevPitch = this.player.getXRot();
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// CraftBukkit end
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double d3 = this.player.getX(); final double toX = d3; // Paper - OBFHELPER
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- double d4 = this.player.getY();
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+ double d4 = this.player.getY(); final double toY = d4; // Paper - OBFHELPER
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double d5 = this.player.getZ(); final double toZ = d5; // Paper - OBFHELPER
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double d6 = this.player.getY();
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double d7 = d0 - this.firstGoodX;
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double d8 = d1 - this.firstGoodY;
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double d9 = d2 - this.firstGoodZ;
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double d10 = this.player.getDeltaMovement().lengthSqr();
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- double d11 = d7 * d7 + d8 * d8 + d9 * d9;
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+ // Paper start - fix large move vectors killing the server
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+ double currDeltaX = toX - prevX;
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+ double currDeltaY = toY - prevY;
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+ double currDeltaZ = toZ - prevZ;
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+ double d11 = Math.max(d7 * d7 + d8 * d8 + d9 * d9, (currDeltaX * currDeltaX + currDeltaY * currDeltaY + currDeltaZ * currDeltaZ) - 1);
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+ // Paper end - fix large move vectors killing the server
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+ // Paper start - fix large move vectors killing the server
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+ double otherFieldX = d0 - this.lastGoodX;
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+ double otherFieldY = d1 - this.lastGoodY;
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+ double otherFieldZ = d2 - this.lastGoodZ;
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+ d11 = Math.max(d11, (otherFieldX * otherFieldX + otherFieldY * otherFieldY + otherFieldZ * otherFieldZ) - 1);
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+ // Paper end - fix large move vectors killing the server
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if (this.player.isSleeping()) {
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if (d11 > 1.0D) {
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@@ -1295,9 +1317,9 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
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AABB axisalignedbb = this.player.getBoundingBox();
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- d7 = d0 - this.lastGoodX;
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- d8 = d1 - this.lastGoodY;
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- d9 = d2 - this.lastGoodZ;
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+ d7 = d0 - this.lastGoodX; // Paper - diff on change, used for checking large move vectors above
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+ d8 = d1 - this.lastGoodY; // Paper - diff on change, used for checking large move vectors above
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+ d9 = d2 - this.lastGoodZ; // Paper - diff on change, used for checking large move vectors above
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boolean flag = d8 > 0.0D;
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if (this.player.isOnGround() && !packet.isOnGround() && flag) {
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