Set vehicle driver position (calculate position with angle and distance)

Question

Hello, I am trying to set the drivers position (3D) relative to the vehicle rotation. E.g. the driver seat is 45° to the front left from the cars origin with a distance of 2.

My first approach was to use Cos, Sin and Tan but this didn't end up in the desired result. To be honest I am a bit confused by the 3D dimension.

 Vector3 pos = vehicle.transform.position;
 Quaternion dir = vehicle.transform.rotation;
 driver.transform.position = new Vector3(pos.x + Mathf.Cos((45+dir.x)*Mathf.Deg2Rad)*2, pos.y + Mathf.Sin(dir.y*Mathf.Deg2Rad), pos.z + Mathf.Tan((45+dir.z)*Mathf.Deg2Rad)*2);

Answer 1

Answer by leschge · Feb 19 at 02:08 PM

A bit more research led me to this working solution:

        Vector3 pos = vehicle.transform.position;
         Quaternion dir = vehicle.transform.rotation;
         Vector3 relDir = new Vector3(-1, 0, +1);
         driver.transform.position = pos + dir * relDir * 2f;
         //Additional rotation transform to make the player "fixed" in the seat
         driver.transform.rotation = vehicle.transform.rotation;

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Set vehicle driver position (calculate position with angle and distance)

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