koobas.hobune.stream
Add force relative to the angle/direction?
So I'm trying to make this space exploration game, but I'm having a little trouble getting the force applied to the right direction that the ship is facing. Here is my current code for the movement
var speed = 0.8;
var turnSpeed = 0.15;
function Start () {
rigidbody.useGravity = false;
}
function Update () {
var currentvertical : Vector3 = transform.TransformDirection(transform.up*Input.GetAxis("Vertical")*turnSpeed);
var currenthorizontal : Vector3 = transform.TransformDirection(transform.right*Input.GetAxis("Horizontal")*turnSpeed);
if (Input.GetButton("Jump")) { //Spacebar by default will make it move forward
rigidbody.AddRelativeForce (Vector3.forward*speed);
}
rigidbody.AddRelativeTorque(currenthorizontal);
// W key or the up arrow to turn upwards, S or the down arrow to turn downwards.
rigidbody.AddRelativeTorque(currentvertical);
// A or left arrow to turn left, D or right arrow to turn right.
}
When I try to move, I only move upwards, help with this would be great, thanks.
You're messing the directions using 3 world to local successive conversions and using the wrong axes. If you add a relative torque, you must pass the world axis. To turn left or right in a 3D world, for instance, you must use AddRelativeTorque(Vector3.up Input.GetAxis("Horizontal") turnSpeed) - the torque is applied around the axis selected - Y, in this case. Since it's relative, the local Y (up) axis is used.
The behaviour will be very similar to the RCS (Reaction Control System) that controls a Space Shuttle direction: turning left or right activates the lateral thrusters, and the spaceship starts spinning around its vertical axis.
var speed = 0.8; var turnSpeed = 0.15;
function Start () { rigidbody.useGravity = false; }
function Update () {
var currentvertical : Vector3 = Vector3.right*Input.GetAxis("Vertical")*turnSpeed;
var currenthorizontal : Vector3 = Vector3.up*Input.GetAxis("Horizontal")*turnSpeed;
if (Input.GetButton("Jump")) { //Spacebar by default will make it move forward
rigidbody.AddRelativeForce (Vector3.forward*speed);
}
rigidbody.AddRelativeTorque(currenthorizontal);
// W key or the up arrow to turn upwards, S or the down arrow to turn downwards.
rigidbody.AddRelativeTorque(currentvertical);
// A or left arrow to turn left, D or right arrow to turn right.
}
