How to create a car at right side next to player

[Barofioso]

Hello

Someone asks me, how to create a car at right side next to player. So i just wrote this little tutorial about. I hope you enjoy this little thing, which was did in two hours, and explained with a horrible english ;D

Spend time:

• 2 hours testing the spawn of vehicles and coding + doc
• 3 hours making this tutorial with translation
• 0.5 hours thinking about, why i am doing this ... (i didn't found an answer -.-)

First we have to know some things:

• How is the World working
• How is the Position working
• How is the Rotation working
• How can i spawn a car (Code snippet)

 

How is the World working? => It is a north axis oriented map. If you open the full map ingame, top is north, bottom is south. It is every time a constant and will not change

How is the Position working? => It is a Vector based information. It has three types.

• X => left - | + right
• Y => top - | + bottom
• Z => down - | + up

The "+" and "-" are the operators here in our coordination system, which we have to use later.

How is the Rotation working? => It is a Vector based information. Same here we have three types, but the number is always positive. So we can just use the Z variable.

• X => back | front (Not tested)
• Y => left | right (Not tested)
• Z => ground

Then we will get four options:

• N => 0°
• E => 270°
• S => 180°
• W => 90°

We have to use the radius to know how the player is rotated away from north.

Just think about your shool days. back then you had geometry and raius was a topic of it.

 

Ok, we got our information. Let us code that stuff

Small version

Spoiler

//Get Data
Vector3 carPos = client.Position;//current player pos
Vector3 cr = client.Rotation;//current player rot

//Get config
float distance = 2f; //hardcode

//Check player rotation
if (cr.Z >= 0 && cr.Z < 90) {
  //left side
  carPos.Y += distance;
}
else {
  if(cr.Z >= 90 && cr.Z < 180) {
    //back side
    carPos.X -= distance;
  }
  else {
    if (cr.Z >= 180 && cr.Z < 270) {
      //right side
      carPos.Y -= distance;
    }
    else {
      if(cr.Z >= 270 && !(cr.Z > 360)) {
        //front side
        carPos.X += distance;
      }
      else {
        //No way! 359.9 + 0.1 => 0
        NAPI.Util.ConsoleOutput("create car -> ??? more than 360 degrees rotation?");
      }
    }
  }
}

//finally create the car and enjoy 
Vehicle xvehicle = NAPI.Vehicle.CreateVehicle(VehicleHash.Adder, carPos, cr, 1, 1, "34", 255, false, true, client.Dimension);

 

Doc version

Spoiler

/*
 * Orientation NorthAxis
 * 
 * X => left - | + right
 * Y => back - | + front
 * Z => down - | + up
 */
Vector3 carPos = client.Position;

/*
 * Orientation NorthAxis (everytime positive float number)
 * 
 * N => 0°
 * E => 270°
 * S => 180°
 * W => 90°
 */
Vector3 cr = client.Rotation;

/*
 * if you want to create an admin command, 
 * which allows you to create every time on your right side a car, 
 * no matter how the player is rotated on the north axis (face looks on x)
 * 
 * You have following to know
 * 
 * if the player looks left West
 *  - rotation = 90
 *  - position
 *   -> X - = front
 *   -> X + = back
 *   -> Y - = left
 *   -> Y + = right
 *  
 * if the player looks right East
 *  - rotation = 270
 *  - position
 *   -> X - = back
 *   -> X + = front
 *   -> Y - = right
 *   -> Y + = left
 *  
 * if the player looks back South
 *  - rotation = 180
 *  - position
 *   -> X - = right
 *   -> X + = left
 *   -> Y - = front
 *   -> Y + = back
 *  
 * if the player looks front North
 *  - rotation = 0
 *  - position
 *   -> X - = left
 *   -> X + = right
 *   -> Y - = back
 *   -> Y + = front
 * 
 * And you have to use a variable to declare the distance between car and your player :D
 * 
 */
float distance = 2f;//use it with a config system or something like that, where you can set this easy - hardcode ;D


//If the player rotation is bigger/or 0 and smaller than 90
if (cr.Z >= 0 && cr.Z < 90) {
  //left side
  /*
   * position
   * 
   * X => 0
   * Y => Y + distance
   * 
   * rotation = same like player
   * 
   */
  carPos.Y += distance;
}
else {
  //if the player rotation is bigger/or 90 and smaller than 180
  if(cr.Z >= 90 && cr.Z < 180) {
    //back side
    /*
     * position
     * 
     * X => X - distance
     * Y => 0
     * 
     * rotation = same like player
     * 
     */
    carPos.X -= distance;
  }
  else {
    //if the player rotation is bigger/or 90 and smaller than 270
    if (cr.Z >= 180 && cr.Z < 270) {
      //right side
      /*
       * position
       * 
       * X => 0
       * Y => Y - distance
       * 
       * rotation = same like player
       * 
       */
      carPos.Y -= distance;
    }
    else {
      //if the player rotation is bigger/or 270 and not bigger than 360
      if(cr.Z >= 270 && !(cr.Z > 360)) {
        //front side
        /*
         * position
         * 
         * X => X + distance
         * Y => 0
         * 
         * rotation = same like player
         * 
         */
        carPos.X += distance;
      }
      else {
        //No way! 359.9 + 0.1 => 0
        NAPI.Util.ConsoleOutput("create car -> ??? more than 360 degrees rotation?");
      }
    }
  }
}

//finally create the car and enjoy 
Vehicle xvehicle = NAPI.Vehicle.CreateVehicle(VehicleHash.Adder, carPos, cr, 1, 1, "34", 255, false, true, client.Dimension);

 

Edited August 27, 2018 by Barofioso

[hexisgod]

In JS you can use it
 

var offsetPosition = function(x, y, rot, distance) {
    return {
        x: x + Math.sin(-rot * Math.PI / 180) * distance,
        y: y + Math.cos(-rot * Math.PI / 180) * distance,
    };
};

var { x, y } = offsetPosition(200.0, 200.0, 180, 1.2);

return new cord X|Y

Edited February 14, 2019 by hexisgod

[DampflokTV]

In what direction is the Distance?

Can you somehow set it to 5 meters in front or back or left or right side of the player?