2KNOS - Build 1

#include <a_samp>

#define     PRESSED(%0) \
                (((newkeys & (%0)) == (%0)) && ((oldkeys & (%0)) != (%0)))

#define     HOLDING(%0) \
                ((newkeys & (%0)) == (%0))

#define     USE_MY_PRETTY_TEXTDRAWS     0

#define     CHOOSE_YOUR_OWN_KEY         KEY_SUBMISSION

new
    Text:TwoKNOSLabel,
    Text:TwoKNOSON,
    Text:TwoKNOSOFF
;

new
    p_UsingNos[MAX_PLAYERS] = 0
;

public OnFilterScriptInit()
{
    for(new u = 0; u < MAX_PLAYERS; u++) { //You can now safely load/reload the filterscript while the gamemode is already running.
        p_UsingNos[u] = -1;
    }
    print("[2K-NOS] : Build 1 - Loaded");

    TwoKNOSLabel = TextDrawCreate(488.000000, 102.000000, "~b~~h~~h~(2KNOS)~n~~n~");
    TextDrawBackgroundColor(TwoKNOSLabel, 255);
    TextDrawFont(TwoKNOSLabel, 2);
    TextDrawLetterSize(TwoKNOSLabel, 0.270000, 1.300000);
    TextDrawColor(TwoKNOSLabel, -1);
    TextDrawSetOutline(TwoKNOSLabel, 1);
    TextDrawSetProportional(TwoKNOSLabel, 1);
    TextDrawUseBox(TwoKNOSLabel, 1);
    TextDrawBoxColor(TwoKNOSLabel, 70);
    TextDrawTextSize(TwoKNOSLabel, 620.000000, 0.000000);

    TwoKNOSON = TextDrawCreate(492.000000, 117.000000, "~b~~h~~h~NOS ~w~has been toggled ~g~ON!");
    TextDrawBackgroundColor(TwoKNOSON, 255);
    TextDrawFont(TwoKNOSON, 3);
    TextDrawLetterSize(TwoKNOSON, 0.270000, 1.300000);
    TextDrawColor(TwoKNOSON, -1);
    TextDrawSetOutline(TwoKNOSON, 1);
    TextDrawSetProportional(TwoKNOSON, 1);

    TwoKNOSOFF = TextDrawCreate(492.000000, 117.000000, "~b~~h~~h~NOS ~w~has been toggled ~r~OFF!");
    TextDrawBackgroundColor(TwoKNOSOFF, 255);
    TextDrawFont(TwoKNOSOFF, 3);
    TextDrawLetterSize(TwoKNOSOFF, 0.270000, 1.300000);
    TextDrawColor(TwoKNOSOFF, -1);
    TextDrawSetOutline(TwoKNOSOFF, 1);
    TextDrawSetProportional(TwoKNOSOFF, 1);
    return 1;
}

public OnFilterScriptExit()
{
    for(new u = 0; u < MAX_PLAYERS; u++)
    {
        p_UsingNos[u] = -1;
        print("[2K-NOS] - Unloaded.");
    }
    return 1;
}

public OnPlayerConnect(playerid)
{
    p_UsingNos[playerid] = -1;
    return 1;
}

public OnPlayerCommandText(playerid, cmdtext[])
{
    if (strcmp("/nos", cmdtext, true, 4) == 0)
    {
        #if defined USE_MY_PRETTY_TEXTDRAWS

            if(p_UsingNos[playerid] == -1) {
                p_UsingNos[playerid] = 1;

                TextDrawShowForPlayer(playerid, Text:TwoKNOSLabel);
                TextDrawShowForPlayer(playerid, Text:TwoKNOSON);
                return SetTimerEx("HideTD", 3000, 0, "i", playerid);

            }

            else if(p_UsingNos[playerid] == 1) {
                p_UsingNos[playerid] = -1;

                TextDrawShowForPlayer(playerid, Text:TwoKNOSLabel);
                TextDrawShowForPlayer(playerid, Text:TwoKNOSOFF);
                return SetTimerEx("HideTD", 3000, 0, "i", playerid);

            }


        #else

            if(p_UsingNos[playerid] == -1) {

                new
                    kstring[128] //I didn't count this; you could gain extra efficiency by counting the amount of characters!
                ;

                p_UsingNos[playerid] = 1;

                SendClientMessage(playerid, -1, "{0CA4F0}[2KNOS] NOS {FFFFFF}has been turned {138C03}on!");
                format(kstring, sizeof(kstring), "{0CA4F0}HINT: {FFFFFF}Press ~k~~CHOOSE_YOUR_OWN_KEY~ to stock/restock your NOS!");
                SendClientMessage(playerid, -1, kstring);
                return SendClientMessage(playerid, -1, "{FFFFFF}Type {0CA4F0}/nos {FFFFFF}again to turn it {BF0808}off!");

            }
            else {

                p_UsingNos[playerid] = -1;

                SendClientMessage(playerid, -1, "{0CA4F0}[2KNOS] NOS {FFFFFF}has been turned {BF0808}off!");
                return SendClientMessage(playerid, -1, "{FFFFFF}Type {0CA4F0}/nos {FFFFFF}again to turn it {138C03}on!");

            }
        #endif
        return 1;
    }
    return 0;
}

public OnPlayerKeyStateChange(playerid, newkeys, oldkeys)
{
    if(PRESSED(CHOOSE_YOUR_OWN_KEY)) //Press RMB
    {
        if(IsPlayerInAnyVehicle(playerid)) {

            if(p_UsingNos[playerid] == 1) { //If they have 2KNOS toggled on..

                if(IsACar(GetPlayerVehicleID(playerid))) {

                    AddVehicleComponent(GetPlayerVehicleID(playerid), 1010); //10x NOS

                }
                else return 0; //This vehicle would spam exceptions and crash players!

            }

        }
    }
    return 1;
}

stock IsACar( vehicleid ) //SmiT
{
    new
        _vmodel = GetVehicleModel( vehicleid )
    ;
    switch ( _vmodel )
    {
        case 401, 402, 404 .. 409, 410 .. 412, 415, 416, 418 .. 421, 423, 426 .. 429, 431 .. 434, 436 .. 439, 442, 445, 449, 451: return true;
        case 457 .. 459, 466, 467, 474 .. 477, 479, 480, 483, 485, 486, 488, 490 .. 492, 494, 496, 504, 506 .. 508, 514 .. 518: return true;
        case 525 .. 530, 532 .. 542, 544 .. 547, 549 .. 551, 55, 558 .. 562, 565 .. 567, 571, 572, 574 .. 576, 583, 585: return true;
        case 587 .. 589, 596 .. 599, 601, 602, 603, 604: return true;
    }
    return false;
}

forward HideTD(playerid);
public HideTD(playerid)
{
    if(p_UsingNos[playerid] == 1) { //If it's already on..
        TextDrawHideForPlayer(playerid, Text:TwoKNOSLabel);
        return TextDrawHideForPlayer(playerid, Text:TwoKNOSON);
    }
    else if(p_UsingNos[playerid] == -1) {
        TextDrawHideForPlayer(playerid, Text:TwoKNOSLabel);
        return TextDrawHideForPlayer(playerid, Text:TwoKNOSOFF);
    }
    return 1;
}