PaperMC/Spigot-Server-Patches/0082-Do-not-load-chunks-for-Pathfinding.patch
Zach Brown 70ce6ce831
Move version command update checking to the implementation
This makes it easier for downstream projects (forks) to replace the
version fetching system with their own. It is as simple as implementing
an interface and overriding the default implementation of
org.bukkit.UnsafeValues#getVersionFetcher()

It also makes it easier for us to organize things like the version
history feature.

Lastly I have updated the paper implementation to check against the site
API rather than against jenkins.
2019-05-27 04:13:41 -05:00

94 lines
5 KiB
Diff

From de7967b2d83901afe71ae8e0ca85ea9fe2dd5f7e Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Thu, 31 Mar 2016 19:17:58 -0400
Subject: [PATCH] Do not load chunks for Pathfinding
diff --git a/src/main/java/net/minecraft/server/ChunkCache.java b/src/main/java/net/minecraft/server/ChunkCache.java
index ccbc1dde0..34e743716 100644
--- a/src/main/java/net/minecraft/server/ChunkCache.java
+++ b/src/main/java/net/minecraft/server/ChunkCache.java
@@ -25,7 +25,7 @@ public class ChunkCache implements IWorldReader {
for (k = this.a; k <= i; ++k) {
for (l = this.b; l <= j; ++l) {
- this.c[k - this.a][l - this.b] = world.getChunkAt(k, l, ChunkStatus.FULL, false);
+ this.c[k - this.a][l - this.b] = world.getChunkIfLoadedImmediately(k, l); // Paper
}
}
@@ -91,7 +91,7 @@ public class ChunkCache implements IWorldReader {
int k = i - this.a;
int l = j - this.b;
- return k >= 0 && k < this.c.length && l >= 0 && l < this.c[k].length;
+ return k >= 0 && k < this.c.length && l >= 0 && l < this.c[k].length && this.c[k][l] != null; // Paper - We don't always load chunks
}
@Override
diff --git a/src/main/java/net/minecraft/server/NavigationAbstract.java b/src/main/java/net/minecraft/server/NavigationAbstract.java
index d04eb1bbf..ed69eaa17 100644
--- a/src/main/java/net/minecraft/server/NavigationAbstract.java
+++ b/src/main/java/net/minecraft/server/NavigationAbstract.java
@@ -22,7 +22,7 @@ public abstract class NavigationAbstract {
protected long n;
protected PathfinderAbstract o;
private BlockPosition q;
- private Pathfinder r;
+ private Pathfinder r; public Pathfinder getPathfinder() { return r; } // Paper - OBFHELPER
public NavigationAbstract(EntityInsentient entityinsentient, World world) {
this.g = Vec3D.a;
diff --git a/src/main/java/net/minecraft/server/Pathfinder.java b/src/main/java/net/minecraft/server/Pathfinder.java
index 359d9a11c..262fa5585 100644
--- a/src/main/java/net/minecraft/server/Pathfinder.java
+++ b/src/main/java/net/minecraft/server/Pathfinder.java
@@ -12,7 +12,7 @@ public class Pathfinder {
private final Set<PathPoint> b = Sets.newHashSet();
private final PathPoint[] c = new PathPoint[32];
private final int d;
- private PathfinderAbstract e;
+ private PathfinderAbstract e; public PathfinderAbstract getPathfinder() { return this.e; } // Paper - OBFHELPER
public Pathfinder(PathfinderAbstract pathfinderabstract, int i) {
this.e = pathfinderabstract;
diff --git a/src/main/java/net/minecraft/server/PathfinderNormal.java b/src/main/java/net/minecraft/server/PathfinderNormal.java
index d97166f8f..0cea9db8f 100644
--- a/src/main/java/net/minecraft/server/PathfinderNormal.java
+++ b/src/main/java/net/minecraft/server/PathfinderNormal.java
@@ -355,7 +355,8 @@ public class PathfinderNormal extends PathfinderAbstract {
PathType pathtype = this.b(iblockaccess, i, j, k);
if (pathtype == PathType.OPEN && j >= 1) {
- Block block = iblockaccess.getType(new BlockPosition(i, j - 1, k)).getBlock();
+ Block block = iblockaccess.getBlockIfLoaded(new BlockPosition(i, j - 1, k)); // Paper
+ if (block == null) return PathType.BLOCKED; // Paper
PathType pathtype1 = this.b(iblockaccess, i, j - 1, k);
pathtype = pathtype1 != PathType.WALKABLE && pathtype1 != PathType.OPEN && pathtype1 != PathType.WATER && pathtype1 != PathType.LAVA ? PathType.WALKABLE : PathType.OPEN;
@@ -385,9 +386,10 @@ public class PathfinderNormal extends PathfinderAbstract {
for (int l = -1; l <= 1; ++l) {
for (int i1 = -1; i1 <= 1; ++i1) {
if (l != 0 || i1 != 0) {
- Block block = iblockaccess.getType(blockposition_pooledblockposition.d(l + i, j, i1 + k)).getBlock();
+ Block block = iblockaccess.getBlockIfLoaded(blockposition_pooledblockposition.d(l + i, j, i1 + k)); // Paper
- if (block == Blocks.CACTUS) {
+ if (block == null) pathtype = PathType.BLOCKED; // Paper
+ else if (block == Blocks.CACTUS) { // Paper
pathtype = PathType.DANGER_CACTUS;
} else if (block == Blocks.FIRE) {
pathtype = PathType.DANGER_FIRE;
@@ -421,7 +423,8 @@ public class PathfinderNormal extends PathfinderAbstract {
protected PathType b(IBlockAccess iblockaccess, int i, int j, int k) {
BlockPosition blockposition = new BlockPosition(i, j, k);
- IBlockData iblockdata = iblockaccess.getType(blockposition);
+ IBlockData iblockdata = iblockaccess.getTypeIfLoaded(blockposition); // Paper
+ if (iblockdata == null) return PathType.BLOCKED; // Paper
Block block = iblockdata.getBlock();
Material material = iblockdata.getMaterial();
--
2.21.0