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4176f4dd610c33fc309168a75c4bee826b51a14c
DivineMC/divinemc-server/minecraft-patches/features/0019-Lag-compensation.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: NONPLAYT <76615486+NONPLAYT@users.noreply.github.com>
Date: Sat, 1 Feb 2025 18:38:26 +0300
Subject: [PATCH] Lag compensation
diff --git a/net/minecraft/server/MinecraftServer.java b/net/minecraft/server/MinecraftServer.java
index 9fdd4bbbe0e4c75880e9f24741fea7c60c57d09a..ad308e75a58e7db5247489b5d4447b1271ee0102 100644
--- a/net/minecraft/server/MinecraftServer.java
+++ b/net/minecraft/server/MinecraftServer.java
@@ -307,6 +307,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
public static final long SERVER_INIT = System.nanoTime(); // Paper - Lag compensation
protected boolean upnp = false; // Purpur - UPnP Port Forwarding
public java.util.concurrent.Semaphore serverLevelTickingSemaphore = null; // DivineMC - parallel world ticking
+ public final org.bxteam.divinemc.util.tps.TPSCalculator tpsCalculator = new org.bxteam.divinemc.util.tps.TPSCalculator(); // DivineMC - Lag compensation
public static <S extends MinecraftServer> S spin(Function<Thread, S> threadFunction) {
ca.spottedleaf.dataconverter.minecraft.datatypes.MCTypeRegistry.init(); // Paper - rewrite data converter system
@@ -1589,6 +1590,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
}
this.server.spark.tickStart(); // Paper - spark
+ this.tpsCalculator.doTick(); // DivineMC - Lag compenstation
new com.destroystokyo.paper.event.server.ServerTickStartEvent(this.tickCount+1).callEvent(); // Paper - Server Tick Events
this.tickCount++;
this.tickRateManager.tick();
diff --git a/net/minecraft/server/level/ServerLevel.java b/net/minecraft/server/level/ServerLevel.java
index 6fc3db6fa365da0512ff3c845586a9d54e8b23b2..e684eaed9740c3236a8f2bd7cce0d86661632a87 100644
--- a/net/minecraft/server/level/ServerLevel.java
+++ b/net/minecraft/server/level/ServerLevel.java
@@ -219,6 +219,7 @@ public class ServerLevel extends Level implements ServerEntityGetter, WorldGenLe
public boolean hasEntityMoveEvent; // Paper - Add EntityMoveEvent
private final alternate.current.wire.WireHandler wireHandler = new alternate.current.wire.WireHandler(this); // Paper - optimize redstone (Alternate Current)
public boolean hasRidableMoveEvent = false; // Purpur - Ridables
+ public org.bxteam.divinemc.util.tps.TPSCalculator tpsCalculator = new org.bxteam.divinemc.util.tps.TPSCalculator(); // DivineMC - Lag Compensation
public LevelChunk getChunkIfLoaded(int x, int z) {
return this.chunkSource.getChunkAtIfLoadedImmediately(x, z); // Paper - Use getChunkIfLoadedImmediately
@@ -776,6 +777,8 @@ public class ServerLevel extends Level implements ServerEntityGetter, WorldGenLe
}
}
+ this.tpsCalculator.doTick(); // DivineMC - Lag compensation
+
this.updateSkyBrightness();
if (runsNormally) {
this.tickTime();
@@ -877,11 +880,18 @@ public class ServerLevel extends Level implements ServerEntityGetter, WorldGenLe
this.setDayTime(this.preciseTime);
} else
// Purpur end - Configurable daylight cycle
- this.setDayTime(this.levelData.getDayTime() + 1L);
+ this.setDayTime(lagCompensation(this.levelData.getDayTime()) + 1L); // DivineMC - Lag compensation
}
}
}
+ // DivineMC start - Lag compensation
+ private long lagCompensation(long original) {
+ if (!org.bxteam.divinemc.DivineConfig.lagCompensationEnabled || !org.bxteam.divinemc.DivineConfig.timeAcceleration) return original;
+ return original + this.tpsCalculator.applicableMissedTicks();
+ }
+ // DivineMC end - Lag compensation
+
public void setDayTime(long time) {
this.serverLevelData.setDayTime(time);
// Purpur start - Configurable daylight cycle
diff --git a/net/minecraft/world/entity/LivingEntity.java b/net/minecraft/world/entity/LivingEntity.java
index e7f1be39ecc532e83d9099e81a2dfd8ed5f0df7d..34a1a6e92a3fcb1e0f1e8e7ccf6cbce7eda8e10e 100644
--- a/net/minecraft/world/entity/LivingEntity.java
+++ b/net/minecraft/world/entity/LivingEntity.java
@@ -559,6 +559,7 @@ public abstract class LivingEntity extends Entity implements Attackable {
}
}
+ lagCompensation(); // DivineMC - Lag Compensation
this.tickEffects();
this.animStepO = this.animStep;
this.yBodyRotO = this.yBodyRot;
@@ -568,6 +569,17 @@ public abstract class LivingEntity extends Entity implements Attackable {
profilerFiller.pop();
}
+ // DivineMC start - Lag Compensation
+ private void lagCompensation() {
+ if (!org.bxteam.divinemc.DivineConfig.lagCompensationEnabled || !org.bxteam.divinemc.DivineConfig.potionEffectAcceleration) return;
+ if (this.level().isClientSide()) return;
+
+ for (int i = 0; i < ((ServerLevel) this.level()).tpsCalculator.applicableMissedTicks(); i++) {
+ tickEffects();
+ }
+ }
+ // DivineMC end - Lag Compensation
+
@Override
protected float getBlockSpeedFactor() {
return Mth.lerp((float)this.getAttributeValue(Attributes.MOVEMENT_EFFICIENCY), super.getBlockSpeedFactor(), 1.0F);
diff --git a/net/minecraft/world/entity/PortalProcessor.java b/net/minecraft/world/entity/PortalProcessor.java
index 88b07fbb96b20124777889830afa480673629d43..d2661ea79536010414f77256332f214d19106dd9 100644
--- a/net/minecraft/world/entity/PortalProcessor.java
+++ b/net/minecraft/world/entity/PortalProcessor.java
@@ -24,10 +24,20 @@ public class PortalProcessor {
return false;
} else {
this.insidePortalThisTick = false;
- return canChangeDimensions && this.portalTime++ >= this.portal.getPortalTransitionTime(level, entity);
+ return canChangeDimensions && lagCompensation(this.portalTime++, level) >= this.portal.getPortalTransitionTime(level, entity); // DivineMC - Lag compensation
}
}
+ // DivineMC start - Lag compensation
+ private int lagCompensation(int original, ServerLevel world) {
+ if (!org.bxteam.divinemc.DivineConfig.lagCompensationEnabled || !org.bxteam.divinemc.DivineConfig.portalAcceleration) return original;
+ if (world.isClientSide()) return original;
+
+ portalTime = portalTime + world.tpsCalculator.applicableMissedTicks();
+ return portalTime;
+ }
+ // DivineMC end - Lag compensation
+
@Nullable
public TeleportTransition getPortalDestination(ServerLevel level, Entity entity) {
return this.portal.getPortalDestination(level, entity, this.entryPosition);
diff --git a/net/minecraft/world/entity/item/ItemEntity.java b/net/minecraft/world/entity/item/ItemEntity.java
index 771b169fa360411bb313ae04c7dd55836875c611..e64ed6a23efbe89b8d3dd1e5a2a69ba4b7743369 100644
--- a/net/minecraft/world/entity/item/ItemEntity.java
+++ b/net/minecraft/world/entity/item/ItemEntity.java
@@ -153,8 +153,25 @@ public class ItemEntity extends Entity implements TraceableEntity {
}
// Paper end - EAR 2
+ // DivineMC start - Lag compensation
+ private void lagCompensation() {
+ if (!org.bxteam.divinemc.DivineConfig.lagCompensationEnabled || !org.bxteam.divinemc.DivineConfig.pickupAcceleration) return;
+ if ((this).level().isClientSide()) return;
+
+ if (pickupDelay == 0) return;
+
+ if (pickupDelay - ((ServerLevel) this.level()).tpsCalculator.applicableMissedTicks() <= 0) {
+ pickupDelay = 0;
+ return;
+ }
+
+ pickupDelay = pickupDelay - ((ServerLevel) this.level()).tpsCalculator.applicableMissedTicks();
+ }
+ // DivineMC end - Lag compensation
+
@Override
public void tick() {
+ lagCompensation(); // DivineMC - Lag compensation
if (this.getItem().isEmpty()) {
this.discard(org.bukkit.event.entity.EntityRemoveEvent.Cause.DESPAWN); // CraftBukkit - add Bukkit remove cause
} else {
diff --git a/net/minecraft/world/item/Item.java b/net/minecraft/world/item/Item.java
index 6821d39a24ef610ea8b04f6dbeca2cdc0b8e7787..a4d76e4aafb98b1bbc0e5a80d65cf0f9a3a53fd5 100644
--- a/net/minecraft/world/item/Item.java
+++ b/net/minecraft/world/item/Item.java
@@ -258,9 +258,21 @@ public class Item implements FeatureElement, ItemLike {
return consumable != null ? consumable.animation() : ItemUseAnimation.NONE;
}
+ // DivineMC start - Lag compensation
+ private int lagCompensation(int original, net.minecraft.server.level.ServerLevel level) {
+ if (!org.bxteam.divinemc.DivineConfig.lagCompensationEnabled || !org.bxteam.divinemc.DivineConfig.eatingAcceleration || original == 0) return original;
+ return org.bxteam.divinemc.util.tps.TPSUtil.tt20(original, true, level);
+ }
+ // DivineMC end - Lag compensation
+
public int getUseDuration(ItemStack stack, LivingEntity entity) {
Consumable consumable = stack.get(DataComponents.CONSUMABLE);
- return consumable != null ? consumable.consumeTicks() : 0;
+ int original = consumable != null ? consumable.consumeTicks() : 0;
+ if (entity.level() instanceof net.minecraft.server.level.ServerLevel serverLevel) {
+ return lagCompensation(original, serverLevel);
+ }
+
+ return original;
}
public boolean releaseUsing(ItemStack stack, Level level, LivingEntity entity, int timeLeft) {
diff --git a/net/minecraft/world/level/GameRules.java b/net/minecraft/world/level/GameRules.java
index 02d64a5ea756b2c91a71b7a0fc0f21219983616a..d515ba4e775e1199e1cbf4f79978d318eaa6b336 100644
--- a/net/minecraft/world/level/GameRules.java
+++ b/net/minecraft/world/level/GameRules.java
@@ -320,8 +320,31 @@ public class GameRules {
}
public int getInt(GameRules.Key<GameRules.IntegerValue> key) {
- return this.getRule(key).get();
+ return lagCompensation(this.getRule(key).get(), key); // DivineMC - Lag compensation
+ }
+
+ // DivineMC start - Lag compensation
+ private final java.util.concurrent.atomic.AtomicReference<net.minecraft.server.level.ServerLevel> level = new java.util.concurrent.atomic.AtomicReference<>();
+
+ private int lagCompensation(int original, GameRules.Key<GameRules.IntegerValue> rule) {
+ ServerLevel level = getOrCacheLevel();
+ if (!org.bxteam.divinemc.DivineConfig.lagCompensationEnabled || !org.bxteam.divinemc.DivineConfig.randomTickSpeedAcceleration) return original;
+ if (!(rule == GameRules.RULE_RANDOMTICKING)) return original;
+ return (int) (original * org.bxteam.divinemc.util.tps.TPSCalculator.MAX_TPS / (float) level.tpsCalculator.getMostAccurateTPS());
+ }
+
+ private ServerLevel getOrCacheLevel() {
+ if (level.get() == null) {
+ for (final ServerLevel level : MinecraftServer.getServer().getAllLevels()) {
+ if (level.getGameRules() == this) {
+ this.level.set(level);
+ break;
+ }
+ }
+ }
+ return level.get();
}
+ // DivineMC end - Lag compensation
public static class BooleanValue extends GameRules.Value<GameRules.BooleanValue> {
private boolean value;
diff --git a/net/minecraft/world/level/block/state/BlockBehaviour.java b/net/minecraft/world/level/block/state/BlockBehaviour.java
index b631e35e965b1914cdeeddab8bd6bdbfd2465079..bb7dab597850fba8f0dff4461fc518e0a33b00c7 100644
--- a/net/minecraft/world/level/block/state/BlockBehaviour.java
+++ b/net/minecraft/world/level/block/state/BlockBehaviour.java
@@ -346,13 +346,21 @@ public abstract class BlockBehaviour implements FeatureElement {
protected void tick(BlockState state, ServerLevel level, BlockPos pos, RandomSource random) {
}
+ // DivineMC start - Lag compensation
+ private float lagCompensation(float original, Player player) {
+ if (!org.bxteam.divinemc.DivineConfig.lagCompensationEnabled || !org.bxteam.divinemc.DivineConfig.blockBreakingAcceleration) return original;
+ if (player.level().isClientSide) return original;
+ return original * org.bxteam.divinemc.util.tps.TPSCalculator.MAX_TPS / (float) ((ServerLevel) player.level()).tpsCalculator.getMostAccurateTPS();
+ }
+ // DivineMC end - Lag compensation
+
protected float getDestroyProgress(BlockState state, Player player, BlockGetter level, BlockPos pos) {
float destroySpeed = state.getDestroySpeed(level, pos);
if (destroySpeed == -1.0F) {
- return 0.0F;
+ return lagCompensation(0.0F, player); // DivineMC - Lag compensation
} else {
int i = player.hasCorrectToolForDrops(state) ? 30 : 100;
- return player.getDestroySpeed(state) / destroySpeed / i;
+ return lagCompensation(player.getDestroySpeed(state) / destroySpeed / i, player); // DivineMC - Lag compensation
}
}
diff --git a/net/minecraft/world/level/chunk/LevelChunk.java b/net/minecraft/world/level/chunk/LevelChunk.java
index 66c7f0d2adc8c00b53125b8cdc5da8c4319eedb5..1cdff5ee25e6ef66e6aae221e61eee7829b213ed 100644
--- a/net/minecraft/world/level/chunk/LevelChunk.java
+++ b/net/minecraft/world/level/chunk/LevelChunk.java
@@ -913,6 +913,19 @@ public class LevelChunk extends ChunkAccess implements ca.spottedleaf.moonrise.p
this.ticker = ticker;
}
+ // DivineMC start - Lag compensation
+ private <T extends BlockEntity> void lagCompensation(Runnable original) {
+ original.run();
+ if (!org.bxteam.divinemc.DivineConfig.lagCompensationEnabled) return;
+ if (!org.bxteam.divinemc.DivineConfig.blockEntityAcceleration) return;
+ if (LevelChunk.this.level.isClientSide()) return;
+
+ for (int i = 0; i < ((ServerLevel) this.blockEntity.getLevel()).tpsCalculator.applicableMissedTicks(); i++) {
+ original.run();
+ }
+ }
+ // DivineMC end - Lag compensation
+
@Override
public void tick() {
if (!this.blockEntity.isRemoved() && this.blockEntity.hasLevel()) {
@@ -923,7 +936,11 @@ public class LevelChunk extends ChunkAccess implements ca.spottedleaf.moonrise.p
profilerFiller.push(this::getType);
BlockState blockState = LevelChunk.this.getBlockState(blockPos);
if (this.blockEntity.getType().isValid(blockState)) {
- this.ticker.tick(LevelChunk.this.level, this.blockEntity.getBlockPos(), blockState, this.blockEntity);
+ // DivineMC start - Lag compensation
+ lagCompensation(() -> {
+ this.ticker.tick(LevelChunk.this.level, this.blockEntity.getBlockPos(), blockState, this.blockEntity);
+ });
+ // DivineMC end - Lag compensation
this.loggedInvalidBlockState = false;
// Paper start - Remove the Block Entity if it's invalid
} else {
diff --git a/net/minecraft/world/level/material/LavaFluid.java b/net/minecraft/world/level/material/LavaFluid.java
index 35b5a33c79c883f28c99c992695b188524593b55..6845a1c3b6038700751312d8beb0f9a2844003a5 100644
--- a/net/minecraft/world/level/material/LavaFluid.java
+++ b/net/minecraft/world/level/material/LavaFluid.java
@@ -175,9 +175,22 @@ public abstract class LavaFluid extends FlowingFluid {
return fluidState.getHeight(blockReader, pos) >= 0.44444445F && fluid.is(FluidTags.WATER);
}
+ // DivineMC start - Lag compensation
+ private int lagCompensation(int original, ServerLevel level) {
+ if (!org.bxteam.divinemc.DivineConfig.lagCompensationEnabled || !org.bxteam.divinemc.DivineConfig.fluidAcceleration) return original;
+ return org.bxteam.divinemc.util.tps.TPSUtil.tt20(original, true, level);
+ }
+ // DivineMC end - Lag compensation
+
@Override
public int getTickDelay(LevelReader level) {
- return level.dimensionType().ultraWarm() ? level.getWorldBorder().world.purpurConfig.lavaSpeedNether : level.getWorldBorder().world.purpurConfig.lavaSpeedNotNether; // Purpur - Make lava flow speed configurable
+ // DivineMC start - Lag compensation
+ int original = level.dimensionType().ultraWarm() ? level.getWorldBorder().world.purpurConfig.lavaSpeedNether : level.getWorldBorder().world.purpurConfig.lavaSpeedNotNether; // Purpur - Make lava flow speed configurable
+ if (level instanceof ServerLevel serverLevel) {
+ return lagCompensation(original, serverLevel);
+ }
+ return original;
+ // DivineMC end - Lag compensation
}
@Override
diff --git a/net/minecraft/world/level/material/WaterFluid.java b/net/minecraft/world/level/material/WaterFluid.java
index 2e4fed7c27910b6c886f710f33b0841c2a175837..89f22ebcbaf21df3afb6a00f60d8e00777875aac 100644
--- a/net/minecraft/world/level/material/WaterFluid.java
+++ b/net/minecraft/world/level/material/WaterFluid.java
@@ -113,8 +113,16 @@ public abstract class WaterFluid extends FlowingFluid {
return 1;
}
+ // DivineMC start - Lag compensation
+ private int lagCompensation(ServerLevel level) {
+ if (!org.bxteam.divinemc.DivineConfig.lagCompensationEnabled || !org.bxteam.divinemc.DivineConfig.fluidAcceleration) return 5;
+ return org.bxteam.divinemc.util.tps.TPSUtil.tt20(5, true, level);
+ }
+ // DivineMC end - Lag compensation
+
@Override
public int getTickDelay(LevelReader level) {
+ if (level instanceof ServerLevel serverLevel) return lagCompensation(serverLevel); // DivineMC - Lag compensation
return 5;
}
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