Inaccurate knockback from other entities

[PutterBeanut]

Versions

• Mineflayer: 4.27.0
• Server: Paper 1.21.4 v225
• Node: 20.17.0

Description

The Mineflayer bot does not seem to take knockback or be pushed around accurately in a few areas:

1. Entity Collisions:
   When the bot's hitbox overlaps with another player or mob, there is no mutual pushback as expected. The bot remains stationary instead of being pushed away like a normal entity would.
2. Excessive Vertical Knockback on ground:
   When punched while standing on solid ground, the bot is knocked vertically much higher than it should be—sometimes even a full block upward, which shouldn't normally happen.
3. Excessive Knockback in water:
   The same issue occurs when the bot is in water (especially noticeable in 1-block-deep pools). It experiences significantly more knockback than a player or mob would under the same conditions.

Additional context

I am not extremely well-versed in the protocol that backs this library, so it's possible that the issue stems from slight inaccuracies in how movement or velocity is being simulated or handled.

Any ideas? Thank you in advance!