0005941: llGetObjectDetails returns ZERO_ROTATION for OBJECT_ROTATION of a seated avatar in mouselook mode - MantisBT

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ID

Project

Category

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Date Submitted

Last Update

0005941

opensim

[REGION] Script Functions

public

2012-03-21 07:20

2012-05-24 18:50

Reporter

Kayaker Magic

Assigned To

justincc

Priority

normal

Severity

minor

Reproducibility

always

Status

assigned

Resolution

open

Platform

OS

OS Version

Product Version

Target Version

Fixed in Version

Summary

0005941: llGetObjectDetails returns ZERO_ROTATION for OBJECT_ROTATION of a seated avatar in mouselook mode

Description

In SL, llGetObjectDetails(id,[OBJECT_ROTATION]); returns the rotation that describes the direction a seated avatar is looking when the avatar is in in mouselook mode. IN OpenSim this call returns <0,0,0,0> in this situation.
This behavior in SL is useful for aiming weapons I suppose, although I use it for steering boats so that they go in the direction you are looking.

Steps To Reproduce

Create a prim, create a new script in it, paste the script below into it and save.
Sit on the prim, go into mouselook mode, and look around. On SL the second set of numbers changes as you look around. On OpenSim the second set of numbers is always <0,0,0,0>

Additional Information

default
{
    state_entry()
    {
        llSitTarget(<0,0,1>,ZERO_ROTATION);
        llSetTimerEvent(1.0);

    }
    timer()
    {
        key user=llAvatarOnSitTarget();
        if (user!=NULL_KEY)
        {
            if (llGetAgentInfo(user)&AGENT_MOUSELOOK)
            {
                rotation prot=llGetRot();
                rotation arot=llList2Rot(llGetObjectDetails(user,[OBJECT_ROT]),0);
                llOwnerSay((string)(llRot2Euler(prot)*RAD_TO_DEG)+(string)(llRot2Euler(arot)*RAD_TO_DEG));
            }
        }

    }

}

Tags

No tags attached.

Git Revision or version number

unknown

Run Mode

Grid (Multiple Regions per Sim)

Physics Engine

ODE

Environment

Unknown

Mono Version

None

Viewer

imprudence

Relationships

Notes
(0021153) justincc (administrator) 2012-03-30 23:17	From a quick web search I can't see where this is documented behaviour for llGetObjectDetails(). Could you provide a link? This could be fairly trivially done in LSL_Api.llGetObjectDetails() if ScenePresence.m_headrotation were exposed via a public property.

(0021526) Kayaker Magic (reporter) 2012-05-24 18:50	http://wiki.secondlife.com/wiki/LlGetRot [^] has a mention of this now. I searched the Wiki and the WEB looking for documentation on this. I once saw a forum posting from someone saying approximately “In an attached object worn by an avatar in mouselook mode, llGetRot returns the rotation of the avatars HEAD instead of the rotation of the avatar body”. If you read weapons scripts, you see that they assume that this is true: The weapon fires in the direction the avatar is looking, not the direction the body is facing. I discovered that the same thing is true when llGetRot is called from a prim that the avatar is seated on. I begged the SL Scripting Forum crowd to help me find a reference to this, and they replied “You have useful information, add it to the Wiki yourself!” I figured if I added this documentation, I'd be accused of cheating! Finally Void Singer took pity on me and added one line to the llGetRot documentation (link above) that says: “llGetRot will return an accurate facing for Avatars seated or in mouselook, but only a rough direction otherwise when called from an attached prim.”

Issue History
Date Modified	Username	Field	Change
2012-03-21 07:20	Kayaker Magic	New Issue
2012-03-30 23:17	justincc	Note Added: 0021153
2012-03-30 23:17	justincc	Assigned To	=> justincc
2012-03-30 23:17	justincc	Status	new => feedback
2012-05-24 18:50	Kayaker Magic	Note Added: 0021526
2012-05-24 18:50	Kayaker Magic	Status	feedback => assigned

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