[KinderClans]

I have a command to plant seeds and i added a check to check if player is in air, problem is, even if im in ground or in a streets, it says i can't plant seeds in air.

This is the check:

pawn Код:

new Float:vx, Float:vy, Float:vz;
    GetPlayerVelocity(playerid, vx, vy, vz);
    vz = VectorSize(vx, vy, vz);
    if(floatabs(vz) < 0.05) return SCM(playerid, COLOR_LIGHTRED, "* You can't plant seeds in air.");

[ReD_HunTeR]

You have to use MapAndreas plugin for that, velocity is not for that type of purpose.

Код:

new Float:ox, Float:oy, Float:oz, Float:mz;
GetPlayerPos(playerid, ox, oy, oz);
MapAndreas_FindZ_For2DCoord(ox, oy, mz); //this here is to find the ground coordinates you have to use mapandreas plugin
if(mz != nz) return SCM(playerid, COLOR_LIGHTRED, "* You can't plant seeds in air."); //If ground value doesn't match with the players Z coordinates returns error

https://sampforum.blast.hk/showthread.php?tid=120013

[KinderClans]

undefined symbol "nz".

[UFF]

Quote:

Originally Posted by KinderClans undefined symbol "nz".

Код:

if(mz != oz) return SCM(playerid, COLOR_LIGHTRED, "* You can't plant seeds in air.");

[GTLS]

Quote:

Originally Posted by KinderClans undefined symbol "nz".

look at RedHunter's code. he didnt defined nz variable. you gotta do it yourself.

[KinderClans]

Quote:

Originally Posted by UFF Код: if(mz != oz) return SCM(playerid, COLOR_LIGHTRED, "* You can't plant seeds in air.");

Tried. Same problem.

GTLS, what i have to define? Float:nz?

[kingmk]

To check if the player it's on ground, u can also check the player state first, then for more accurately, u can check the animation of the player,

[NaS]

Quote:

Originally Posted by ReD_HunTeR You have to use MapAndreas plugin for that, velocity is not for that type of purpose. Код: new Float:ox, Float:oy, Float:oz, Float:mz; GetPlayerPos(playerid, ox, oy, oz); MapAndreas_FindZ_For2DCoord(ox, oy, mz); //this here is to find the ground coordinates you have to use mapandreas plugin if(mz != nz) return SCM(playerid, COLOR_LIGHTRED, "* You can't plant seeds in air."); //If ground value doesn't match with the players Z coordinates returns error https://sampforum.blast.hk/showthread.php?tid=120013

You should add a small tolerance, because a) MapAndreas isn't 100% precise and b) the player position will always be above the ground (exactly 1 unit above ground, which is the origin of the player model).

For example

Код:

if(floatabs(z - 1.0 - mz) < 0.3) // Player position must be between 0.7 and 1.3 meters above ground position (considering MapAndreas isn't precise) - a tolerance of 0.3m - subtract 1.0 from player position for the offset
{
 // Not midair
}

Still velocity is a valid way to do so. There's no way a player has a velocity of 0.0 (or similarly low) if midair, except being frozen or modding. But even then it's extremely unlikely to still have a standing/crouching animation.
MapAndreas will detect anything obstructed as underground. You could work with a combination of velocity, animation and player state to get a better result.

[KinderClans]

undefined symbol "z"

[NaS]

Quote:

Originally Posted by KinderClans undefined symbol "z"

Change it to 'oz' in the above code...