[FS] jCheckpoints.

/*
    jCheckpoints by Johurt(ES.^, Edgar).
        Date: 04-04-2013
    Video: http://www.youtube.com/watch?v=WQqVz1sJ9Xo
*/
#include <a_samp>

#define MAX_PLAYER_CPS  5
#define PLUS_CP_SIZE    2.0

new pCPID[MAX_PLAYERS],
    Float:pCPPosX[MAX_PLAYERS][MAX_PLAYER_CPS],
    Float:pCPPosY[MAX_PLAYERS][MAX_PLAYER_CPS],
    Float:pCPPosZ[MAX_PLAYERS][MAX_PLAYER_CPS],
    Float:pCPSize[MAX_PLAYERS][MAX_PLAYER_CPS],
    bool:pCPShow[MAX_PLAYERS][MAX_PLAYER_CPS];

public OnPlayerConnect(playerid)
{
    pCPID[playerid] = -1;
    for(new cp; cp < MAX_PLAYER_CPS; cp++)
    {
        pCPPosX[playerid][cp] = 0.0;
        pCPPosY[playerid][cp] = 0.0;
        pCPPosZ[playerid][cp] = 0.0;
        pCPSize[playerid][cp] = 0.0;
        pCPShow[playerid][cp] = false;
    }
    return 1;
}

public OnPlayerCommandText(playerid, cmdtext[])
{
    if(!strcmp("/cp1", cmdtext, true, 4))
    {
        SetPlayerCheckpointEx(playerid, 0, -2026.5967, -101.1647, 35.1641, 3.0);
        return 1;
    }
    if(!strcmp("/cp2", cmdtext, true, 4))
    {
        SetPlayerCheckpointEx(playerid, 1, -2027.8463, -41.2431, 38.8047, 3.0);
        return 1;
    }
    return 0;
}

public OnPlayerEnterCheckpoint(playerid)
{
    new cpid = pCPID[playerid];
    switch(cpid)
    {
        case 0:
            {
            if(IsPlayerInCheckpointEx(playerid, cpid))
                {
                printf("Player enter %d ID checkpoint.", cpid);
                DisablePlayerCheckpointEx(playerid, 0);
            }
        }
        case 1:
            {
            if(IsPlayerInCheckpointEx(playerid, cpid))
                {
                printf("Player enter %d ID checkpoint.", cpid);
                DisablePlayerCheckpointEx(playerid, 1);
            }
            }
    }
    return 1;
}

public OnPlayerLeaveCheckpoint(playerid)
{
    new cpid = pCPID[playerid];
    switch(cpid)
    {
        case 1:
            {
                if(IsPlayerInCheckpointEx(playerid, cpid))
                {
                printf("Player leave %d ID checkpoint.", cpid);
            }
            }
    }
    return 1;
}

stock SetPlayerCheckpointEx(playerid, cpid, Float:x, Float:y, Float:z, Float:size)
{
    if(cpid < 0 || cpid > MAX_PLAYER_CPS - 1)
    {
        printf("Error, you can't create cp with %d ID.", cpid);
            return 1;
    }
    pCPPosX[playerid][cpid] = x;
    pCPPosY[playerid][cpid] = y;
    pCPPosZ[playerid][cpid] = z;
    pCPSize[playerid][cpid] = size;
    pCPShow[playerid][cpid] = true;
    pCPID[playerid] = cpid;
    SetPlayerCheckpoint(playerid, x, y, z, size);
    return 1;
}

stock DisablePlayerCheckpointEx(playerid, cpid)
{
    if(cpid < 0 || cpid > MAX_PLAYER_CPS - 1)
    {
        printf("Error, you can't delete cp with %d ID.", cpid);
            return 1;
    }
    pCPID[playerid] = -1;
    pCPPosX[playerid][cpid] = 0.0;
    pCPPosY[playerid][cpid] = 0.0;
    pCPPosZ[playerid][cpid] = 0.0;
    pCPSize[playerid][cpid] = 0.0;
    pCPShow[playerid][cpid] = false;
    DisablePlayerCheckpoint(playerid);
    for(new cp; cp < MAX_PLAYER_CPS; cp++)
    {
        if(pCPShow[playerid][cp])
            {
                pCPID[playerid] = cp;
            SetPlayerCheckpoint(playerid, pCPPosX[playerid][cp], pCPPosY[playerid][cp], pCPPosZ[playerid][cp], pCPSize[playerid][cp]);
            break;
        }
    }
    return 1;
}

stock DisableAllPlayerCheckpoints(playerid)
{
    pCPID[playerid] = -1;
    DisablePlayerCheckpoint(playerid);
    for(new cp; cp < MAX_PLAYER_CPS; cp++)
    {
        if(pCPShow[playerid][cp])
        {
            pCPPosX[playerid][cp] = 0.0;
            pCPPosY[playerid][cp] = 0.0;
            pCPPosZ[playerid][cp] = 0.0;
            pCPSize[playerid][cp] = 0.0;
            pCPShow[playerid][cp] = false;
        }
    }
    return 1;
}

stock IsPlayerInCheckpointEx(playerid, cpid)
{
    if(cpid < 0 || cpid > MAX_PLAYER_CPS)
    {
        printf("Error, you can't check cp with %d ID.", cpid);
            return false;
    }
    if(!pCPShow[playerid][cpid]) return false;
    if(!IsPlayerInRangeOfPoint(playerid, pCPSize[playerid][cpid] + PLUS_CP_SIZE, pCPPosX[playerid][cpid], pCPPosY[playerid][cpid], pCPPosZ[playerid][cpid])) return false;
    return true;
}