RemoveSpeedZone usage?

123LladdCae · 2018-09-28T14:10:26.072Z

I’ve been searching around but can’t appear to be able to find a decent documentation on how to use RemoveSpeedZone within Lua. On the Native Reference site, it has a C# example but that’s of no help to me.

I have a command that creates a speedzone, and I want it so that if you type it in again it will obviously disabled the zone. I did try to assign zone a local and then global variable, but either that’s not how you do it or that just won’t work due to the RemoveSpeedZone() function being above the defining of the variable.

This is what I have so far…

--AddSpeedZoneForCoord(float x, float y, float z, float radius, float speed, BOOL p5);

function blipareas(x,y,z,radius,idcolor)
      blip = AddBlipForRadius(x,y,z,radius) 
        SetBlipColour(blip,idcolor)
        SetBlipAlpha(blip,80)
		    SetBlipSprite(blip,9)
  return blip
end

local zone = false

RegisterCommand('zone', function(source, args, rawCommand)

  if zone then
    zone = false
    RemoveBlip(blip)
    RemoveSpeedZone(5)
    return
  else
    zone = true

  local playerPos = GetEntityCoords(GetPlayerPed())
  local radius = args[1] + 0.0
  local speed = args[2] + 0.0
  local playerx = playerPos.x
  local playery = playerPos.y
  local playerz = playerPos.z

  AddSpeedZoneForCoord(playerx, playery, playerz, radius, speed, true); 
  blipareas(playerx,playery,playerz,radius,46)

  end

end, false)

This simply doesn’t want to remove the speedzone, could somebody please shed some light on how i’d go about removing it? Or using it in general. Thank you in advance <3

anders · 2018-09-28T14:55:18.879Z

You’ll want declare speedZone at the top of your script outside of the function and command so that it remains inscope to be used when the command attempts to remove it later. Optimally you’d also declare the blip variable here as well.

In your command you want to store the integer returned by AddSpeedZoneForCoord to the speedZone variable that can then be used to remove the speed zone on future runs of the command. Same thing can happen with the blip here, RemoveBlip(blip), RemoveSpeedZone(speedZOne).

Also the nativedb is recommending you use ‘false’ in AddSpeedZoneForCoord, though I’ve never actually used this native before, I’m not sure if it even works

[EDIT] - Tested out of curiosity and this native does work, slowed down traffic on the highway to 5mph with the below. Running the command a second time makes traffic speed back up to normal. This could be very useful for some scripts like cops at a traffic scene, etc. Cool.

client.lua

local speedZoneActive = false
local blip
local speedZone

RegisterCommand('speedzone', function(source, args, raw)
	if speedZone then
		RemoveBlip(blip)
		RemoveSpeedZone(speedZone)
		speedZoneActive = false
	else
		speedZoneActive = true
		local x, y, z = table.unpack(GetEntityCoords(GetPlayerPed(-1)))
		blip = AddBlipForRadius(x, y, z, 50.0)
		SetBlipColour(blip,idcolor)
        SetBlipAlpha(blip,80)
		SetBlipSprite(blip,9)
		speedZone = AddSpeedZoneForCoord(x, y, z, 50.0, 2.2352, false)
	end
end, false)

123LladdCae · 2018-09-28T15:33:07.365Z

Awesome thank you! <3

anders · 2018-09-28T15:35:21.038Z

No problem, you’ll want to test this in a multiplayer session though, I have no idea if the speedzone networks or if you would have to have your command trigger a server event that would trigger a client event to run on all clients to set and remove the speed zones. If it doesn’t network on it’s own I could see some interesting things happening with sync/desync in that area.

123LladdCae · 2018-09-28T15:48:53.027Z

Yeah, I already had that in mind

xOnlyFadi · 2019-12-25T02:16:34.411Z

the example don’t work anymore