Entity movement behavior different from vanilla when last collision shape reduces movement to less than 1e-7
Fallen-Breath opened this issue ยท 4 comments
The issue is splitted from #442
Instructions
The following tnt duper behavior changes when the tnt entity is nearby a chunk border
Reproduction Steps
-
Install fabric-carpet mod
-
Build 2 of the tnt duper in the following image in a correct direction
- The coordinate of the sticky piston are
-2 -58 59and-12 -58 59
- The coordinate of the sticky piston are
-
Use fabric-carpet's command
/carpet hardcodeTNTangle 4.457099494579702to override tnt initial velocity -
Activate the tnt duper with 4gt pulse every 8gt
Behavior
Expected behavior: Both of these 2 tnt dupers launch tnt on retract (this is also the vanilla behavior)
Actual behavior: The left duper in the image doesn't launch tnt, which behavior wrongly. Only the right one launch tnt
Version Information
Reproduced with
| MC version | lithium version | carpet version |
|---|---|---|
| 1.18.2 | 0.10.3 | 1.4.66 |
| 1.19 | 0.8.1 | 1.4.79 |
| 1.19.3 | 0.10.4 | 1.4.93 |
Other Information
The behavior is locational. The wrong behavior only happens nearby chunk border
The wrong behavior should be reproduce-able with only lithium, if you test it long enough and wait for a tnt to be created with the special velocity
Example wdl (1.18.2): void.zip
Tested with older mc versions after applied the fix (#442 (comment)) of #442. This issue still affect the following versions
| MC version | lithium version | carpet version |
|---|---|---|
| 1.16.4/5 | 0.6.4 | 1.4.44 |
| 1.17.1 | 0.7.5 | 1.4.56 |
For block collisions this is fixed by 61f1471
For entity collisions (boats & shulkers) this is still an issue