[CrazyFrenzy]

Check if the player swims

Step 1
Make sure to have the a_samp include and those definitions in the top of your script.

PHP Code:

#include <a_samp>
#define PLAYER_SWIM     (1)
#define PLAYER_WALK     (2) 


These definitions are here to replace numbers to make it look badass.


Step 2
Defining varaibles and callbacks.

PHP Code:

new animName[32], animLib[32], Float:playerGPos[MAX_PLAYERS][3];
forward OnPlayerSwim(playerid, status); 


This will help us further.

Step 3
Checking the status of a player whether is swimming or not, in order to do so you have to use the public OnPlayerUpdate, yet it is not preferable and you sure want to use a timer instead.

PHP Code:

public OnPlayerUpdate(playerid)
{
    GetAnimationName(GetPlayerAnimationIndex(playerid), animLib, sizeof(animLib), animName, sizeof(animName));
    GetPlayerPos(playerid, playerGPos[playerid][0], playerGPos[playerid][1], playerGPos[playerid][2]);
    if(strcmp(animLib, "SWIM", false) || playerGPos[playerid][2] <= 1.5)
        OnPlayerSwim(playerid, PLAYER_SWIM);
    else
        OnPlayerSwim(playerid, PLAYER_WALK);
    return 1;
} 


Explainition of each and every line:

PHP Code:

GetAnimationName(GetPlayerAnimationIndex(playerid), animLib, sizeof(animLib), animName, sizeof(animName)); 


It's basically used to reterive the anim libary and name into varaibles so I can make a comparsion.

PHP Code:

GetPlayerPos(playerid, playerGPos[playerid][0], playerGPos[playerid][1], playerGPos[playerid][2]); 


Gets the player position in XYZ coordinates, stores it into 3 Float varaibles.

PHP Code:

if(strcmp(animLib, "SWIM", false) || playerGPos[playerid][2] <= 1.5) 


Compare if the anim libary name is SWIM which is basically called when a player is swimming or is underwater.

PHP Code:

OnPlayerSwim(playerid, PLAYER_SWIM); 


If the player swims or is underwater, it returns the player swim within the OnPlayerSwim callback.

PHP Code:

OnPlayerSwim(playerid, PLAYER_WALK); 


If the player does not swim, it returns the player walk within the OnPlayerSwim callback.

Step 4
Setting up the OnPlayerSwim callback.

You can use whether switch or elses, it doesn't really matter just a matter of comfort.

PHP Code:

public OnPlayerSwim(playerid, status)
{
    switch(status)
    {
        case PLAYER_SWIM:
        {
            // SWIM action
        }
        case PLAYER_WALK:
        {
             // WALK Action
        }
    }
    return 1;
} 


SWIM Action
What will happen to the player that swims, you can use any script code you'd like.

WALK Action
The same thing, just if the player walks.