Vehicle Zangle calculations problem

Vehicle Zangle calculations problem - Printable Version

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+--- Thread: Vehicle Zangle calculations problem (/showthread.php?tid=317518)

Vehicle Zangle calculations problem - Warfish - 11.02.2012

Hello, I am making a new server and I got a scripting problem again..

I have made it this way that you can create races in-game and stored in a MySQL database, the races are saved in 2 tables, one for the information about the race: name, raceId, creator's name and an Angel, this angele is for the Spawn at the begin of race. The other table is linked to the first and contains the coordinates of the checkpoints. For now the scripting was going good until I came at this point.
When the race starts the creator of that race event will spawn first at the start line. that without problem. because I have the coordinates of that fist point and the vehicle Z angle saved in the database.

But here is my problem, I don't know how to calculate the positions for the other opponents at the start line.
I hope someone can help me with this.

Re: Vehicle Zangle calculations problem - Warfish - 11.02.2012

Bump
(I cannot continue my scripting ffs..)

Re: Vehicle Zangle calculations problem - iPLEOMAX - 11.02.2012

Two methods:

1) Create ready-made slots for spawn x,y,z,za for all racers.

2) Automatic: (Note: Will be buggy if the surface isn't flat)

pawn Код:

#define OPPONENT_FRONT  0
#define OPPONENT_BACK   180
#define OPPONENT_LEFT   90
#define OPPONENT_RIGHT  270

stock GetOpponentPositionFrom(vehicleid, direction, Float:offset, &Float:X, &Float:Y, &Float:Z, &Float:ZA)
{   //iPLEOMAX

    GetVehiclePos(vehicleid, X, Y, Z);
    GetVehicleZAngle(vehicleid, ZA);

    X += offset * floatsin(-(ZA+direction), degrees);
    Y += offset * floatcos(-(ZA+direction), degrees);
}

Appropriate offset for FRONT/BACK would be 8 and for LEFT/RIGHT is 5.

Usage:

pawn Код:

CMD:createracer(playerid, params[])
{
    new Float:X, Float:Y, Float:Z, Float:ZA;
    switch(strval(params))
    {
        case 0: GetOpponentPositionFrom(GetPlayerVehicleID(playerid), OPPONENT_FRONT, 5, X, Y, Z, ZA);
        case 1: GetOpponentPositionFrom(GetPlayerVehicleID(playerid), OPPONENT_BACK, 5, X, Y, Z, ZA);
        case 2: GetOpponentPositionFrom(GetPlayerVehicleID(playerid), OPPONENT_LEFT, 5, X, Y, Z, ZA);
        case 3: GetOpponentPositionFrom(GetPlayerVehicleID(playerid), OPPONENT_RIGHT, 5, X, Y, Z, ZA);
    }
    CreateVehicle(400, X, Y, Z, ZA, -1, -1, 0);
    return true;
}

Output:

And remember that you can enter custom direction angle (45) to make diagonal positions!

Re: Vehicle Zangle calculations problem - Warfish - 11.02.2012

I'll go for option 2. I want my script as dynamic a possible.

Thanks a lot!

Re: Vehicle Zangle calculations problem - Warfish - 11.02.2012

thanks for you edit but how can I put my cars 2 on 2? like 2 on the first line and 2 behind them. I think that one car that comes in the new corner spot isn't in the circle u use. hmm...

Re: Vehicle Zangle calculations problem - iPLEOMAX - 11.02.2012

Just use GetOpponentPositionFrom(...); on the vehicle behind the first..

For example, create/tele a vehicle on the right side of the main one, then create cars behind each of them.

Re: Vehicle Zangle calculations problem - Warfish - 11.02.2012

oh yes, thanks again.