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Spigot still maintains some partial implementation of "tick skipping", a practice in which the MinecraftServer.currentTick field is updated not by an increment of one per actual tick, but instead set to System.currentTimeMillis() / 50. This behaviour means that the tracked tick may "skip" a tick value in case a previous tick took more than the expected 50ms. To compensate for this in important paths, spigot/craftbukkit implements "wall-time". Instead of incrementing/decrementing ticks on block entities/entities by one for each call to their tick() method, they instead increment/decrement important values, like an ItemEntity's age or pickupDelay, by the difference of `currentTick - lastTick`, where `lastTick` is the value of `currentTick` during the last tick() call. These "fixes" however do not play nicely with minecraft's simulation distance as entities/block entities implementing the above behaviour would "catch up" their values when moving from a non-ticking chunk to a ticking one as their `lastTick` value remains stuck on the last tick in a ticking chunk and hence lead to a large "catch up" once ticked again. Paper completely removes the "tick skipping" behaviour (See patch "Further-improve-server-tick-loop"), making the above precautions completely unnecessary, which also rids paper of the previous described incompatibility with non-ticking chunks. |
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| .. | ||
| ai | ||
| ambient | ||
| animal | ||
| boss | ||
| decoration | ||
| item | ||
| monster | ||
| npc | ||
| player | ||
| projectile | ||
| raid | ||
| vehicle | ||
| AgeableMob.java.patch | ||
| AreaEffectCloud.java.patch | ||
| ConversionParams.java.patch | ||
| ConversionType.java.patch | ||
| Display.java.patch | ||
| Entity.java.patch | ||
| EntitySelector.java.patch | ||
| EntityType.java.patch | ||
| ExperienceOrb.java.patch | ||
| Interaction.java.patch | ||
| ItemBasedSteering.java.patch | ||
| Leashable.java.patch | ||
| LightningBolt.java.patch | ||
| LivingEntity.java.patch | ||
| Mob.java.patch | ||
| NeutralMob.java.patch | ||
| OminousItemSpawner.java.patch | ||
| PathfinderMob.java.patch | ||
| Shearable.java.patch | ||
| TamableAnimal.java.patch | ||