---
title: "NPC_SetVelocity | open.mp"
description: "Sets the velocity of an NPC."
canonical: https://omp.itsneufox.com/docs/scripting/functions/NPC_SetVelocity
language: en
---

# NPC\_SetVelocity

warning

This function was added in omp v1.5.8.3079 and will not work in earlier versions!

## Description

Sets the velocity of an NPC.

| Name | Description |
| --- | --- |
| npcid | The ID of the NPC |
| Float:x | The X velocity component |
| Float:y | The Y velocity component |
| Float:z | The Z velocity component |

## Returns

Returns `true` on success, `false` on failure.

## Examples

```c
public OnPlayerCommandText(playerid, cmdtext[])
{
    if (!strcmp(cmdtext, "/setvelocity ", true, 13))
    {
        new npcid = PlayerNPC[playerid];
        if (npcid == INVALID_NPC_ID)
            return SendClientMessage(playerid, 0xFF0000FF, "You are not debugging a NPC.");

        if (!NPC_IsValid(npcid))
            return SendClientMessage(playerid, 0xFF0000FF, "Invalid NPC.");

        new Float:x, Float:y, Float:z;
        new idx = 13;

        // Parse x
        while (cmdtext[idx] == ' ') idx++;
        new startIdx = idx;
        while (cmdtext[idx] != ' ' && cmdtext[idx] != '\0') idx++;
        new xStr[32];
        strmid(xStr, cmdtext, startIdx, idx);
        x = floatstr(xStr);

        // Parse y
        while (cmdtext[idx] == ' ') idx++;
        startIdx = idx;
        while (cmdtext[idx] != ' ' && cmdtext[idx] != '\0') idx++;
        new yStr[32];
        strmid(yStr, cmdtext, startIdx, idx);
        y = floatstr(yStr);

        // Parse z
        while (cmdtext[idx] == ' ') idx++;
        z = floatstr(cmdtext[idx]);

        NPC_SetVelocity(npcid, x, y, z);
        SendClientMessage(playerid, 0x00FF00FF, "NPC %d velocity set to %.2f, %.2f, %.2f", npcid, x, y, z);

        return 1;
    }
    return 0;
}
```

## Notes

-   Velocity values determine the speed and direction of movement
-   Positive Z values move the NPC upward, negative values move downward
-   This can be used to create custom movement behaviors

## Related Functions

-   [NPC\_GetVelocity](https://omp.itsneufox.com/docs/scripting/functions/NPC_GetVelocity): Get NPC velocity
-   [NPC\_SetPos](https://omp.itsneufox.com/docs/scripting/functions/NPC_SetPos): Set NPC position
-   [NPC\_Move](https://omp.itsneufox.com/docs/scripting/functions/NPC_Move): Make NPC move to position

## Related Callbacks

-   [OnNPCFinishMove](https://omp.itsneufox.com/docs/scripting/callbacks/OnNPCFinishMove): Called when NPC finishes movement