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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: AJMFactsheets <AJMFactsheets@gmail.com>
Date: Fri, 17 Jan 2020 17:17:54 -0600
Subject: [PATCH] Fix items not falling correctly
Since 1.14, Mojang has added an optimization which skips checking if
an item should fall every fourth tick.
However, Spigot's entity activation range class also has an
optimization which skips ticking active entities every fourth tick.
This can result in a state where an item will never properly fall
due to its move method never being called.
This patch resolves the conflict by offsetting checking Spigot's entity
activation range check from an item's move method.
diff --git a/src/main/java/net/minecraft/world/entity/item/ItemEntity.java b/src/main/java/net/minecraft/world/entity/item/ItemEntity.java
index bfbbb9382cf483a23acf35c17250f6f9223f7507..5994cb69575d365f435f5ef6da5fa61ee9298fe1 100644
--- a/src/main/java/net/minecraft/world/entity/item/ItemEntity.java
+++ b/src/main/java/net/minecraft/world/entity/item/ItemEntity.java
@@ -169,7 +169,7 @@ public class ItemEntity extends Entity implements TraceableEntity {
}
}
- if (!this.onGround() || this.getDeltaMovement().horizontalDistanceSqr() > 9.999999747378752E-6D || (this.tickCount + this.getId()) % 4 == 0) {
+ if (!this.onGround() || this.getDeltaMovement().horizontalDistanceSqr() > 9.999999747378752E-6D || (this.tickCount + this.getId()) % 4 == 0) { // Paper - Diff on change
this.move(MoverType.SELF, this.getDeltaMovement());
float f1 = 0.98F;
diff --git a/src/main/java/org/spigotmc/ActivationRange.java b/src/main/java/org/spigotmc/ActivationRange.java
index e5ff35531a933268f2b8b6c15c234de4482931d5..90df7e83d9166c22a56a31db22d843768229b9ab 100644
--- a/src/main/java/org/spigotmc/ActivationRange.java
+++ b/src/main/java/org/spigotmc/ActivationRange.java
@@ -254,7 +254,7 @@ public class ActivationRange
isActive = true;
}
// Add a little performance juice to active entities. Skip 1/4 if not immune.
- } else if ( !entity.defaultActivationState && entity.tickCount % 4 == 0 && !ActivationRange.checkEntityImmunities( entity ) )
+ } else if ( !entity.defaultActivationState && (entity.tickCount + entity.getId()) % 4 == 0 && !ActivationRange.checkEntityImmunities( entity ) ) // Paper - Ensure checking item movement is offset from Spigot's entity activation range check
{
isActive = false;
}
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