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SakuraMC/patches/server/0009-Load-Chunks-on-Movement.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Samsuik <kfian294ma4@gmail.com>
Date: Sat, 11 Sep 2021 19:19:41 +0100
Subject: [PATCH] Load Chunks on Movement
diff --git a/src/main/java/io/papermc/paper/util/CollisionUtil.java b/src/main/java/io/papermc/paper/util/CollisionUtil.java
index ee0331a6bc40cdde08d926fd8eb1dc642630c2e5..19086bbfdf3a015eafec5ca868c8d2451f554ef0 100644
--- a/src/main/java/io/papermc/paper/util/CollisionUtil.java
+++ b/src/main/java/io/papermc/paper/util/CollisionUtil.java
@@ -1569,6 +1569,7 @@ public final class CollisionUtil {
public static final int COLLISION_FLAG_COLLIDE_WITH_UNLOADED_CHUNKS = 1 << 1;
public static final int COLLISION_FLAG_CHECK_BORDER = 1 << 2;
public static final int COLLISION_FLAG_CHECK_ONLY = 1 << 3;
+ public static final int COLLISION_FLAG_ADD_TICKET = 1 << 4; // Sakura
public static boolean getCollisionsForBlocksOrWorldBorder(final Level world, final Entity entity, final AABB aabb,
final List<VoxelShape> intoVoxel, final List<AABB> intoAABB,
@@ -1619,11 +1620,21 @@ public final class CollisionUtil {
final int maxChunkZ = maxBlockZ >> 4;
final boolean loadChunks = (collisionFlags & COLLISION_FLAG_LOAD_CHUNKS) != 0;
+ final boolean addTicket = (collisionFlags & COLLISION_FLAG_ADD_TICKET) != 0; // Sakura
final ServerChunkCache chunkSource = (ServerChunkCache)world.getChunkSource();
for (int currChunkZ = minChunkZ; currChunkZ <= maxChunkZ; ++currChunkZ) {
for (int currChunkX = minChunkX; currChunkX <= maxChunkX; ++currChunkX) {
final ChunkAccess chunk = loadChunks ? chunkSource.getChunk(currChunkX, currChunkZ, ChunkStatus.FULL, true) : chunkSource.getChunkAtIfLoadedImmediately(currChunkX, currChunkZ);
+ // Sakura start - keep chunks loaded on movement
+ if (addTicket && chunk instanceof net.minecraft.world.level.chunk.LevelChunk levelChunk && levelChunk.movementLoadTicketRequiresUpdate()) {
+ chunkSource.chunkMap.getDistanceManager().getChunkHolderManager().addTicketAtLevel(net.minecraft.server.level.TicketType.ENTITY_MOVEMENT, currChunkX, currChunkZ, 33, CoordinateUtils.getChunkKey(currChunkX, currChunkZ));
+ // This is known to work, uncomment if any issues
+ // var pos = new net.minecraft.world.level.ChunkPos(currChunkX, currChunkZ);
+ // chunkSource.addTicketAtLevel(net.minecraft.server.level.TicketType.ENTITY_MOVEMENT, pos, 33, pos.toLong());
+ levelChunk.updatedMovementLoadTicket();
+ }
+ // Sakura end
if (chunk == null) {
if ((collisionFlags & COLLISION_FLAG_COLLIDE_WITH_UNLOADED_CHUNKS) != 0) {
diff --git a/src/main/java/net/minecraft/server/level/TicketType.java b/src/main/java/net/minecraft/server/level/TicketType.java
index 658e63ebde81dc14c8ab5850fb246dc0aab25dea..f1ff1a67fee37ee7b241ceaa164fa4ee64d3767b 100644
--- a/src/main/java/net/minecraft/server/level/TicketType.java
+++ b/src/main/java/net/minecraft/server/level/TicketType.java
@@ -37,6 +37,7 @@ public class TicketType<T> {
public static final TicketType<Long> NON_FULL_SYNC_LOAD = create("non_full_sync_load", Long::compareTo);
public static final TicketType<ChunkPos> DELAY_UNLOAD = create("delay_unload", Comparator.comparingLong(ChunkPos::toLong), 1);
// Paper end - rewrite chunk system
+ public static final TicketType<Long> ENTITY_MOVEMENT = create("entity_movement", Long::compareTo, 10 * 20); // Sakura
public static <T> TicketType<T> create(String name, Comparator<T> argumentComparator) {
return new TicketType<>(name, argumentComparator, 0L);
diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index 5fbcdbaf4c0344dc3e8fff7bf31c2b021a0ae6cf..6e217474e7224cc5cc0a9818d39233c6757eca50 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -571,6 +571,19 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, S
public boolean isPrimedTNT;
public boolean isFallingBlock;
// Sakura end - visibility api and command
+ // Sakura start - load chunks on cannon entity movement
+ protected boolean loadChunks = false;
+
+ private int getExtraCollisionFlags() {
+ int flags = 0;
+
+ if (this.loadChunks) {
+ flags |= io.papermc.paper.util.CollisionUtil.COLLISION_FLAG_LOAD_CHUNKS | io.papermc.paper.util.CollisionUtil.COLLISION_FLAG_ADD_TICKET;
+ }
+
+ return flags;
+ }
+ // Sakura end - load chunks on cannon entity movement
public Entity(EntityType<?> type, Level world) {
this.id = Entity.ENTITY_COUNTER.incrementAndGet();
@@ -1514,7 +1527,7 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, S
io.papermc.paper.util.CollisionUtil.getCollisions(
world, this, collisionBox, potentialCollisionsVoxel, potentialCollisionsBB,
- io.papermc.paper.util.CollisionUtil.COLLISION_FLAG_CHECK_BORDER,
+ io.papermc.paper.util.CollisionUtil.COLLISION_FLAG_CHECK_BORDER | this.getExtraCollisionFlags(), // Sakura
null, null
);
@@ -4897,12 +4910,12 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, S
@Override
public boolean shouldBeSaved() {
- return this.removalReason != null && !this.removalReason.shouldSave() ? false : (this.isPassenger() ? false : !this.isVehicle() || !this.hasAnyPlayerPassengers()); // Paper - rewrite chunk system - it should check if the entity has ANY player passengers
+ return this.removalReason != null && !this.removalReason.shouldSave() ? false : (this.loadChunks || this.isPassenger() ? false : !this.isVehicle() || !this.hasAnyPlayerPassengers()); // Sakura - used to determine whether a chunk should unload // Paper - rewrite chunk system - it should check if the entity has ANY player passengers
}
@Override
public boolean isAlwaysTicking() {
- return false;
+ return this.loadChunks; // Sakura - always tick in chunks
}
public boolean mayInteract(Level world, BlockPos pos) {
diff --git a/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java b/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java
index 91aa2714bae3f8f5d0fb76426b2b8cfc61941f54..eb2f4fcfe04cb5aa135590b620927ffbe12c8a1e 100644
--- a/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java
+++ b/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java
@@ -75,6 +75,7 @@ public class FallingBlockEntity extends Entity {
this.dropItem = true;
this.fallDamageMax = 40;
this.isFallingBlock = true; // Sakura
+ this.loadChunks = world.sakuraConfig().cannons.loadChunks; // Sakura - falling blocks load chunks
}
public FallingBlockEntity(Level world, double x, double y, double z, BlockState block) {
diff --git a/src/main/java/net/minecraft/world/entity/item/PrimedTnt.java b/src/main/java/net/minecraft/world/entity/item/PrimedTnt.java
index 5aa02f28b6be60688e340099b1637fb0ebfe7aa9..2202138b4ee5d78c9d67f0d53516d135ac9dc745 100644
--- a/src/main/java/net/minecraft/world/entity/item/PrimedTnt.java
+++ b/src/main/java/net/minecraft/world/entity/item/PrimedTnt.java
@@ -40,6 +40,7 @@ public class PrimedTnt extends Entity implements TraceableEntity {
super(type, world);
this.blocksBuilding = true;
this.isPrimedTNT = true; // Sakura
+ this.loadChunks = world.sakuraConfig().cannons.loadChunks; // Sakura - tnt load chunks
}
public PrimedTnt(Level world, double x, double y, double z, @Nullable LivingEntity igniter) {
diff --git a/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java b/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java
index 465458e8a7dbaf9afb32709a71c7b2620d1e1fd2..27b6baae9ac0feec2f2578540e29da6281593add 100644
--- a/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java
+++ b/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java
@@ -218,6 +218,17 @@ public class LevelChunk extends ChunkAccess {
}
}
// Paper end
+ // Sakura start
+ private long lastMovementLoadTicket = 0;
+
+ public boolean movementLoadTicketRequiresUpdate() {
+ return net.minecraft.server.MinecraftServer.currentTickLong - this.lastMovementLoadTicket >= 100;
+ }
+
+ public void updatedMovementLoadTicket() {
+ this.lastMovementLoadTicket = net.minecraft.server.MinecraftServer.currentTickLong;
+ }
+ // Sakura end
public LevelChunk(ServerLevel world, ProtoChunk protoChunk, @Nullable LevelChunk.PostLoadProcessor entityLoader) {
this(world, protoChunk.getPos(), protoChunk.getUpgradeData(), protoChunk.unpackBlockTicks(), protoChunk.unpackFluidTicks(), protoChunk.getInhabitedTime(), protoChunk.getSections(), entityLoader, protoChunk.getBlendingData());
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