0003389: SetWeapon desyncs if called during the first moments of new map

Chat on our Discord Server Get the latest version: 3.1
Source Code

View Issue Details [ Jump to Notes ]

[ Issue History ] [ Print ]

Project

Category

View Status

Date Submitted

Last Update

0003389

Zandronum

[All Projects] Bug

public

2018-03-02 13:16

2018-03-02 13:18

Reporter

Korshun

Assigned To

Priority

normal

Severity

minor

Reproducibility

always

Status

new

Resolution

open

Platform

Microsoft

Windows

OS Version

XP/Vista/7

Product Version

3.0

Target Version

Fixed in Version

Summary

0003389: SetWeapon desyncs if called during the first moments of new map

Description

If SetWeapon is called shortly after loading a new map, it is ignored serverside. But clientside, it is still executed. This causes the client to see the wrong weapon selected, and leads to further permanent ammo desyncs as the client attemps to shoot it.

After a second or so of server playing a new map, SetWeapon begins to work properly.

Steps To Reproduce

The example wad defines a player class that starts with a shotgun and the BFG. By default, the BFG is selected.

An ENTER script is defined to make the player start with the shotgun selected instead of the BFG:
script 1 ENTER
{
SetWeapon("Shotgun");
}

To trigger the bug, you need to be on a real server and join very quickly after a new map loaded. You can do this either by creating a new server and joining very quickly after connecting, or by doing the following:
1. join
2. select BFG
3. changemap to another map
4. shoot immediately after joining

You'll see that you have the shotgun selected. But if you fire it, you'll actually shoot the BFG instead. Ammo counts will also permanently desync due to being predicted clientside instead of being set serverside.

Attached Files

setweapon-enter-desync.wad [^] (568 bytes) 2018-03-02 13:16

Relationships

Notes
(0019098) Korshun (reporter) 2018-03-02 13:18	Forgot to tell you, this bug is present since at least 2.1.2.

**Issue Community Support**
Only registered users can voice their support. Click here to register, or here to log in.
Supporters:	Korshun Fused
Opponents:	No one explicitly opposes this issue yet.

Issue History
Date Modified	Username	Field	Change
2018-03-02 13:16	Korshun	New Issue
2018-03-02 13:16	Korshun	File Added: setweapon-enter-desync.wad
2018-03-02 13:18	Korshun	Note Added: 0019098

Questions or other issues? Contact Us.

Links

Doom and Doom II are the property of id Software.