geforkt von Mirrors/Paper
89d51d5f29
Because this exploit has been widely known for years and has not been fixed by Mojang, we decided that it was worth allowing people to toggle it on/off due to how easy it is to make it configurable. It should be noted that this decision does not promise all future exploits will be configurable.
66 Zeilen
3.2 KiB
Diff
66 Zeilen
3.2 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Sun, 10 May 2020 22:12:46 -0400
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Subject: [PATCH] Ensure Entity position and AABB are never invalid
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Co-authored-by: Spottedleaf <Spottedleaf@users.noreply.github.com>
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diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
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index 9c9689f4deffed50df9aaca6e451228d17154b8c..11a9142962637af5e26939a5eb8f35ba5f205793 100644
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--- a/src/main/java/net/minecraft/world/entity/Entity.java
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+++ b/src/main/java/net/minecraft/world/entity/Entity.java
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@@ -652,8 +652,8 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, S
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}
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public void setPos(double x, double y, double z) {
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- this.setPosRaw(x, y, z);
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- this.setBoundingBox(this.makeBoundingBox());
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+ this.setPosRaw(x, y, z, true); // Paper - Block invalid positions and bounding box; force update
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+ // this.setBoundingBox(this.makeBoundingBox()); // Paper - Block invalid positions and bounding box; move into setPosRaw
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}
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protected AABB makeBoundingBox() {
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@@ -4149,7 +4149,29 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, S
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return this.getZ((2.0D * this.random.nextDouble() - 1.0D) * widthScale);
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}
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+ // Paper start - Block invalid positions and bounding box
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+ public static boolean checkPosition(Entity entity, double newX, double newY, double newZ) {
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+ if (Double.isFinite(newX) && Double.isFinite(newY) && Double.isFinite(newZ)) {
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+ return true;
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+ }
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+
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+ String entityInfo;
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+ try {
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+ entityInfo = entity.toString();
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+ } catch (Exception ex) {
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+ entityInfo = "[Entity info unavailable] ";
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+ }
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+ LOGGER.error("New entity position is invalid! Tried to set invalid position ({},{},{}) for entity {} located at {}, entity info: {}", newX, newY, newZ, entity.getClass().getName(), entity.position, entityInfo, new Throwable());
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+ return false;
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+ }
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public final void setPosRaw(double x, double y, double z) {
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+ this.setPosRaw(x, y, z, false);
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+ }
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+ public final void setPosRaw(double x, double y, double z, boolean forceBoundingBoxUpdate) {
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+ if (!checkPosition(this, x, y, z)) {
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+ return;
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+ }
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+ // Paper end - Block invalid positions and bounding box
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if (this.position.x != x || this.position.y != y || this.position.z != z) {
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this.position = new Vec3(x, y, z);
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int i = Mth.floor(x);
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@@ -4167,6 +4189,12 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, S
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this.levelCallback.onMove();
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}
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+ // Paper start - Block invalid positions and bounding box; don't allow desync of pos and AABB
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+ // hanging has its own special logic
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+ if (!(this instanceof net.minecraft.world.entity.decoration.HangingEntity) && (forceBoundingBoxUpdate || this.position.x != x || this.position.y != y || this.position.z != z)) {
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+ this.setBoundingBox(this.makeBoundingBox());
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+ }
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+ // Paper end - Block invalid positions and bounding box
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}
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public void checkDespawn() {}
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