36f34f01c0
Upstream has released updates that appears 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: da9ef3c5 #496: Add methods to get/set ItemStacks in EquipmentSlots 3abebc9f #492: Let Tameable extend Animals rather than Entity 941111a0 #495: Expose ItemStack and hand used in PlayerShearEntityEvent 4fe19cae #494: InventoryView - Add missing Brewing FUEL_TIME CraftBukkit Changes: 933e9094 #664: Add methods to get/set ItemStacks in EquipmentSlots 18722312 #662: Expose ItemStack and hand used in PlayerShearEntityEvent
39 lines
2.2 KiB
Diff
39 lines
2.2 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: Thu, 2 Apr 2020 02:37:57 -0400
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Subject: [PATCH] Optimize Collision Chunk lookup and avoid loading far chunks
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Try to use a faster chunk lookup for collision detection, and only
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fall back to the original for nearby chunks.
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The collision code takes an AABB and generates a cuboid of checks rather
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than a cylinder, so at high velocity this can generate a lot of chunk checks.
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diff --git a/src/main/java/net/minecraft/server/ICollisionAccess.java b/src/main/java/net/minecraft/server/ICollisionAccess.java
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index f851ed11df14fd9aa8017f44d82fb6cfc3bde345..d154487294b89d5a316929ed665c75d4dd3cfc6b 100644
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--- a/src/main/java/net/minecraft/server/ICollisionAccess.java
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+++ b/src/main/java/net/minecraft/server/ICollisionAccess.java
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@@ -83,15 +83,19 @@ public interface ICollisionAccess extends IBlockAccess {
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}
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while (cursorposition.a()) {
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- int k1 = cursorposition.b();
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- int l1 = cursorposition.c();
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- int i2 = cursorposition.d();
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+ int k1 = cursorposition.b();int x = k1; // Paper
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+ int l1 = cursorposition.c();int y = l1; // Paper
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+ int i2 = cursorposition.d();int z = i2; // Paper
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int j2 = cursorposition.e();
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if (j2 != 3) {
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int k2 = k1 >> 4;
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int l2 = i2 >> 4;
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- IBlockAccess iblockaccess = ICollisionAccess.this.c(k2, l2);
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+ // Paper start - ensure we don't load chunks
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+ boolean far = entity != null && MCUtil.distance(entity.locX(), entity.locY(), entity.locZ(), x, y, z) > 32;
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+ IBlockAccess iblockaccess = ICollisionAccess.this instanceof WorldServer ? ((WorldServer) ICollisionAccess.this).getChunkProvider().getChunkAtIfLoadedMainThread(k2, l2) : null;
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+ if (!far && iblockaccess == null) iblockaccess = ICollisionAccess.this.c(k2, l2);
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+ // Paper end
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if (iblockaccess != null) {
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blockposition_mutableblockposition.d(k1, l1, i2);
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