# moving_start

*LSL event*

```lsl
moving_start()
```

Triggered whenever the physical or moving object containing the script starts moving.

Triggered when task begins moving

```lsl title="How to use" frame="terminal"
moving_start()
{

}
```

## Caveats

- The [moving_start](/events/moving_start/) and [moving_end](/events/moving_end/) events require special handling when scripting attachments.
- After adding or editing a script you must:
- Take off the attachment and then wear the attachment again.

- This event is also triggered when an object is rezzed (unless, presumably, you happen to rez it in precisely the same spot it was before.)
- This event's behavior is undefined for non-physical movement ([llSetPos](/functions/llSetPos/), movement via [build tool](https://wiki.secondlife.com/wiki/Building_Tools), etc.)
- This event is triggered when an object initiates a new [keyframed motion](/functions/llSetKeyframedMotion/), or when motion is resumed via [KFM_CMD_PLAY](/constants/KFM_CMD_PLAY/)

## Examples

<details open>
<summary>Example 1</summary>

```lsl collapse={1-32, 48-63}
//Physical Prim Movement Script
//By Nika Rugani
//With spam work around

vector pos;
float move_time = 5; //Move every 5 seconds
float increment = 5;

float power = 0.5; //The TAU

integer trigger_multiple = FALSE; // This bad boy will prevent spam of moving start event
integer trigger_slave = 1;

setPhysical(integer status_physics)
{
    llSetLinkPrimitiveParamsFast(LINK_THIS, [PRIM_PHYSICS, status_physics]);
}

default
{
    touch_start(integer num_detected)
    {
        if(llGetStatus(STATUS_PHYSICS) == FALSE)
        {
            pos = llGetPos(); //Set the objects default position
            setPhysical(TRUE);
            llSetTimerEvent(move_time);
        }
        else
        {
            setPhysical(FALSE);
            llSetPos(pos);
        }
    }
    moving_start()
    {
        if(trigger_slave == 0)
        {
            llOwnerSay("YEY!! I'm Moving!");
            if(trigger_multiple == FALSE)
            {
                trigger_slave = 1;
            }
        }
    }
    moving_end()
    {
        llSetTimerEvent(move_time);
    }
    timer()
    {
        llSetTimerEvent(0);
        if(llVecDist(pos, llGetPos()) > (increment-2))
        {
            llMoveToTarget(pos, power);
        }
        else
        {
            llMoveToTarget(pos+<0.0,0.0,increment>, power);
        }
        trigger_slave = 0;
    }
}
```

</details>

## Known issues

From the issue templates included by the wiki article:

- SVC-1004 (bug): Behavior of moving_start() and moving_end() is inconsistent.

## See also

### Functions

- [llTarget](/functions/llTarget/)
- [llRotTarget](/functions/llRotTarget/)

### Events

- [moving_end](/events/moving_end/)

---

*Source: [Moving start](https://wiki.secondlife.com/wiki/Moving_start) on the Second Life Wiki. Content from the Second Life Wiki articles Moving start (revision 1194119, 2015-01-22) and Template:Issues/SVC-1004 (revision 1131792, 2011-01-14), CC BY-SA 3.0.*

---

From lsl.dev: https://lsl.dev/events/moving_start/