[KinderClans]

I have a drug system, but needs some tweaks. Actually players can plant even in air, how to resolve this?

pawn Код:

CMD:plant(playerid, params[])
{
    Plant_Create(playerid, 1);
    return 1;
}

[Hunud]

GetPlayerState maybe ?

[NaS]

For a simple solution use GetPlayerVelocity and calculate the velocity vector using VectorSize.

It's extremely unlikely that someone is mid-air without any velocity, as they will fall or at least move.
Furthermore only allow planting on-foot.

For a better and reliable solution use MapAndreas or ColAndreas, this also lets you adjust the plant's position so that it's always perfectly on the ground (even with rotation, if using CA).

[KinderClans]

Do you mind giving me some example code?

[NaS]

For what exactly? The velocity or MapAndreas/ColAndreas?

[KinderClans]

The velocity, to check if player is in air.

[NaS]

Quote:

Originally Posted by KinderClans The velocity, to check if player is in air.

Код:

new Float:vx, Float:vy, Float:vz;
GetPlayerVelocity(playerid, vx, vy, vz);

vz = VectorSize(vx, vy, vz); // Calculate the vector (movement speed)

if(floatabs(vz) < 0.05) // Player is not moving and most likely midair
{
// ...
}

It's nearly impossible to have a that small velocity midair because of gravity and you cannot simply hover somewhere. Make sure the player cannot abuse a feature that freezes them midair.
You might want to adjust 0.05 to a value that works better, find that out by testing.
Hacks/mods would be an exception obviously.

You could also make it so that planting is only possible while crouching (crouching isn't possible when not standing on the ground):

Код:

if(GetPlayerSpecialAction(playerid) == SPECIAL_ACTION_DUCK)

Or both.

[Shinja]

Using Mapandreas, this function will help you

Код:

native MapAndreas_FindZ_For2DCoord(Float:X, Float:Y, &Float:Z);

P.S: i agree with the previous idea for crouch check, its kinda better and cannot be abused

[KinderClans]

Thank you both! I hope to resolve this problem.