Is GetGroundZFor_3dCoord work?

FiveM Resource Development Discussion
1

Hi there. I know, there are few topics about this function but I have read it all and it isn’t help me. I want to get ground height for specific coordinates. I try do this by lua and C# uneffectually :frowning:
LUA Code

AddEventHandler('getRandomPositionWithGroundHeight', function(x, y)
    local ground, newZ
    local z = 0

    ground, newZ = GetGroundZFor_3dCoord(x, y, 99990.0, 1)
    Citizen.Trace('trying to get groundZ at ' .. tostring(x) .. ', ' .. tostring(y) .. ', ' .. tostring(z))

    TriggerEvent('onRandomPositionWithGroundHeightCalculated', x, y, newZ);
end)

C# code

var groundHeight = 0.0f;
var groundFound = API.GetGroundZFor_3dCoord(randomPosition.X, randomPosition.Y, 99999.0f, ref groundHeight, false);

more С# code

var groundHeight = 0.0f;
for (var i = 0; i < 800; i++)
{
      var groundFound = API.GetGroundZFor_3dCoord(randomPosition.X, randomPosition.Y, i, ref groundHeight, false);
      Debug.WriteLine($"Ground find result for {i}: groundFound: {groundFound}, groundHeight: {groundHeight}");

      if (groundFound)
            Debug.WriteLine("GROUND FOUND");
}

But it always return groundHeight = 0. What am I doing wrong?

2

You need to call it repeatedly until ground becomes true.

3

you mean like this?

local ground, newZ
repeat
    ground, newZ = GetGroundZFor_3dCoord(x, y, 99990.0, 1)
until ground

Its just provide infinite loop and no more :frowning:

P.S. use counter instead of 99999.0 i tried too