0001244: A_JumpIfTargetInLOS working incorrectly online - MantisBT

Zandronum

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ID

Project

Category

View Status

Date Submitted

Last Update

0001244

Zandronum

[All Projects] Bug

public

2013-01-02 20:40

2018-09-30 21:00

Reporter

Cutman

Assigned To

Torr Samaho

Priority

normal

Severity

major

Reproducibility

always

Status

closed

Resolution

fixed

Platform

Microsoft

OS

Windows

OS Version

XP/Vista/7

Product Version

1.0

Target Version

1.1

Fixed in Version

1.1

Summary

0001244: A_JumpIfTargetInLOS working incorrectly online

Description

The function A_JumpIfTargetInLOS works incorrectly online. It seems like the client isn't receiving the correct information and causes strange effects.

Steps To Reproduce

1. Download the attached file. It has code for a new Demon actor who stands still in awe while he's in line of sight of the player.
2. Host a server (with cheats) and summon the test actor DemonTest.
3. The demon with appear to be moving around in a strange way, but his hitbox remains where he SHOULD be (standing still when in sight).
4. Try it offline to see the correct behavior.

Additional Information

Here's the code:

actor DemonTest : Demon
{
states
{
  Spawn:
    SARG AB 10 A_Look
    Loop
  See:
    SARG A 0 A_JumpIfTargetInLOS("unsure",1000,360)
    SARG AABBCCDD 2 A_Chase
    Loop
  Melee:
    SARG EF 8 A_FaceTarget
    SARG G 8 A_SargAttack
    Goto See
  Pain:
    SARG H 2
    SARG H 2 A_Pain
    Goto See
  Death:
    SARG I 8
    SARG J 8 A_Scream
    SARG K 4
    SARG L 4 A_NoBlocking
    SARG M 4
    SARG N -1
    Stop
  Raise:
    SARG N 5
    SARG MLKJI 5
    Goto See

  unsure:
    SARG E 10
    Goto See
}
}

LOStest.wad [^] (575 bytes) 2013-01-02 20:40

Relationships

Notes
(0005672) Toxicity (reporter) 2013-01-02 21:48	Sounds like massive desync to me. The server interprets the function correctly (which is why the hitbox is in the right place) but apperantly it doesn't pass that on to the client.

(0005674) ZzZombo (reporter) 2013-01-03 07:13	Maybe it's elated to Dusk's bug report about A_CheckSight executed by clients on their own.

(0005676) Torr Samaho (administrator) 2013-01-04 12:34	This should improve the behavior. Due to the inherent problems of Zandronum's jump handling, the client still mispredicts the monster position locally till the client receives the correct jump outcome from the server.

(0005681) Cutman (reporter) 2013-01-04 16:54	Is that true of all jumps? I have a similar issue with A_JumpIf(args[0]==1,"blah") but not as severe as this one.

(0005682) Torr Samaho (administrator) 2013-01-04 17:36	All jumps whose outcome a client can't predict on its own (A_JumpIf is such a kind of jump) are affected by these mispredictions by the design of the current jump handling.

(0005715) Cutman (reporter) 2013-01-07 19:34	Working perfectly now

**Issue Community Support**
This issue is already marked as resolved. If you feel that is not the case, please reopen it and explain why.
Supporters:	No one explicitly supports this issue yet.
Opponents:	No one explicitly opposes this issue yet.

Issue History
Date Modified	Username	Field	Change
2013-01-02 20:40	Cutman	New Issue
2013-01-02 20:40	Cutman	File Added: LOStest.wad
2013-01-02 21:48	Toxicity	Note Added: 0005672
2013-01-03 07:13	ZzZombo	Note Added: 0005674
2013-01-04 11:54	Torr Samaho	Assigned To	=> Torr Samaho
2013-01-04 11:54	Torr Samaho	Status	new => assigned
2013-01-04 12:34	Torr Samaho	Note Added: 0005676
2013-01-04 12:34	Torr Samaho	Status	assigned => needs testing
2013-01-04 12:35	Torr Samaho	Target Version	=> 1.1
2013-01-04 16:54	Cutman	Note Added: 0005681
2013-01-04 17:36	Torr Samaho	Note Added: 0005682
2013-01-07 19:34	Cutman	Note Added: 0005715
2013-01-07 19:41	Dusk	Status	needs testing => resolved
2013-01-07 19:41	Dusk	Fixed in Version	=> 1.1
2013-01-07 19:41	Dusk	Resolution	open => fixed
2018-09-30 21:00	Blzut3	Status	resolved => closed

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