Hot air balloon

// Hot air balloon filterscript by Srdjan
// Date is 01/11/2011

#include <a_samp>
#include <mapandreas>

#define KEY_AIM 128
#define MAX_BALLOONS 10

new BalloonID[MAX_BALLOONS];
new PlayerInBalloon[MAX_PLAYERS];
new Float: BalloonSpeed[MAX_BALLOONS];
new Float: Radius[MAX_BALLOONS];
new Float: Diametar[MAX_BALLOONS];
new ResetTimer[MAX_BALLOONS];
new ContinueTimer[MAX_BALLOONS];

new Text:commands;

forward ResetSpeed (objectid);
forward Continue (objectid);

public OnFilterScriptInit ()
{
    CreateBalloons ();
    commands = TextDrawCreate (30.0, 270.0,"~w~Commands:~n~Sprint key - speed up~n~Jump key - speed down~n~Key 'Y' - Tilt down~n~Key 'N' - Tilt up~n~LMB - Angle of heading - left~n~RMB - Angle of heading - right");
    TextDrawFont (commands, 2);
    TextDrawLetterSize (commands, 0.3, 0.8);
    MapAndreas_Init (MAP_ANDREAS_MODE_FULL);
    for (new i = 0; i < MAX_PLAYERS; i++) PlayerInBalloon[i] = -1;
    printf ("\nHot Air Balloon by Srdjan loaded.\n");
    return 1;
}

CreateBalloons ()
{
    BalloonID[0] = CreateObject (19334, 198.9927, -1832.8091, 3.0, 0.0, 0.0, 0.0, 300.0);
    BalloonID[1] = CreateObject (19335, 241.3257, -1834.1189, 3.0, 0.0, 0.0, 0.0, 300.0);
    BalloonID[2] = CreateObject (19336, 284.8625, -1830.8752, 3.0, 0.0, 0.0, 0.0, 300.0);
    for (new i = 0; i < 3; i++)
    {
        new id = CreateObject (18699, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 300.0);
        AttachObjectToObject (id, BalloonID[i], 0.0, 0.0, 5.5, 0.0, 180.0, 0.0, 1);
    }
}

public OnPlayerCommandText (playerid, cmdtext[])
{
    if (!strcmp (cmdtext, "/operate"))
    {
        if (PlayerInBalloon[playerid] != -1)
        {
            ClearAnimations (playerid);
            TextDrawHideForPlayer (playerid, commands);
            PlayerInBalloon[playerid] = -1;
        }
        else
        {
            if (GetPlayerBalloonID (playerid, 0) > -1)
            {
                ApplyAnimation (playerid, "GANGS", "leanIDLE", 4.1, 1, 1, 1, 1, 0, 1);
                TextDrawShowForPlayer (playerid, commands);
                PlayerInBalloon[playerid] = GetPlayerBalloonID (playerid, 0);
            }
            else if (GetPlayerBalloonID (playerid, 1) > -1)
            {
                new objectid = BalloonID[GetPlayerBalloonID (playerid, 1)];
                if (IsObjectMoving (objectid))
                {
                    ApplyAnimation (playerid, "GANGS", "leanIDLE", 4.1, 1, 1, 1, 1, 0, 1);
                    TextDrawShowForPlayer (playerid, commands);
                    PlayerInBalloon[playerid] = GetPlayerBalloonID (playerid, 1);
                }
            }
        }
        return 1;
    }
    return 0;
}

GetPlayerBalloonID (playerid, b)
{
    new Float: x, Float: y, Float: z;
    for (new i = 0; i < sizeof (BalloonID); i++)
    {
        GetObjectPos (BalloonID[i], x, y, z);
        if (!b)
        {
            if (!IsPlayerInRangeOfPoint (playerid, 1.5, x, y, z)) continue;
            else return i;
        }
        else if (b)
        {
            if (!IsPlayerInRangeOfPoint (playerid, 5.0, x, y, z)) continue;
            else return i;
        }

    }
    return -1;
}

public OnPlayerKeyStateChange (playerid, newkeys, oldkeys)
{
    if (PlayerInBalloon[playerid] > -1)
    {
        new objectid = BalloonID[PlayerInBalloon[playerid]];
        if ((newkeys & KEY_SPRINT) && !(oldkeys & KEY_SPRINT))
        {
            if (BalloonSpeed[objectid] < 15.0) BalloonSpeed[objectid] += 0.5;
        }
        if ((newkeys & KEY_JUMP) && !(oldkeys & KEY_JUMP))
        {
            if (BalloonSpeed[objectid] > -10.0) BalloonSpeed[objectid] -= 0.5;
        }

        if ((newkeys & KEY_YES) && !(oldkeys & KEY_YES))
        {
            if (Radius[objectid] < 90.0) Radius[objectid] += 5.0;
        }

        if ((newkeys & KEY_NO) && !(oldkeys & KEY_NO))
        {
            if (Radius[objectid] > 0.0) Radius[objectid] -= 5.0;
        }

        if ((newkeys & KEY_FIRE) && !(oldkeys & KEY_FIRE))
        {
            Diametar[objectid] -= 5.0;
            if (Diametar[objectid] < 0.0) Diametar[objectid] = -5.0;
        }

        if ((newkeys & KEY_AIM) && !(oldkeys & KEY_AIM))
        {
            Diametar[objectid] += 5.0;
            if (Diametar[objectid] > 360.0) Diametar[objectid] = 5.0;
        }
        UpdateBalloonMove (objectid);
    }
    return 1;
}

UpdateBalloonMove (objectid)
{
    StopObject (objectid);
    if (BalloonSpeed[objectid] > 0.0)
    {
        Continue (objectid);
    }
    else if (BalloonSpeed[objectid] < 0.0)
    {
        KillTimer (ResetTimer[objectid]);
        new Float: x, Float: y, Float: z;
        GetObjectPos (objectid, x, y, z);
        MapAndreas_FindZ_For2DCoord (x, y, z);
        new time = MoveObject (objectid, x, y, z, floatabs(BalloonSpeed[objectid]));
        ResetTimer[objectid] = SetTimerEx ("ResetSpeed", time, 0, "d", objectid);
    }
}

public ResetSpeed (objectid)
{
    if (BalloonSpeed[objectid] < 0.0) BalloonSpeed[objectid] = 0.0;
    if (Radius[objectid] > 0.0) Radius[objectid] = 0.0;
}

public Continue (objectid)
{
    new Float: x, Float: y, Float: z;
    GetObjectPos (objectid, x, y, z);
    KillTimer (ResetTimer[objectid]);
    KillTimer (ContinueTimer[objectid]);
    z = z + 300 * floatcos (-Radius[objectid], degrees);
    x = x + 1000 * floatsin (-Radius[objectid], degrees) * floatcos (-Diametar[objectid], degrees);
    y = y + 1000 * floatsin (-Radius[objectid], degrees) * floatsin (-Diametar[objectid], degrees);
    new time = MoveObject (objectid, x, y, z, BalloonSpeed[objectid]);
    ContinueTimer[objectid] = SetTimerEx ("Continue", time-2, 0, "d", objectid);
}