koobas.hobune.stream
Smooth Transform with Lerp?
What I'm trying to achieve is having my player perform a sideways dash, as a dodge maneuver. This is the best I've gotten scrambled together (scouring the internet), but I think I've misunderstood the use of lerp or something. The character does move, but it just performs an instant teleportation. In addition the character moves to the left, and a bit diagonally downwards, even though in unity I've only set the target position to -10, 0, 0?
public class Dodge4 : MonoBehaviour
{
public Vector3 targetPosition;
public float smoothFactor = 10;
void Update()
{
if (Input.GetButtonDown("Jump Left"))
{
transform.position = Vector3.Lerp(transform.position, targetPosition, Time.deltaTime * smoothFactor);
}
}
}
do you want to subtract 10 from position x from the current position or do you want its position to become (-10,0,0)?
There is a big difference between the two, if you intend to make the first option, the y and z position will matter, but the x position will be the current x position -10 and it will not move diagonally downwards. If you want it, the way you are doing it is wrong, but you can use Vector3.Lerp. However, if you want it to go in the direction (-10,0,0), your script is correct, but your object's y and z position is different from 0, so it moves diagonally.
ThisDo you want to subtract 10 from position x from the current position
While my previous answer that I gave at 1am was incorrect, I still believe that updating the start vector of lerp while lerping is a bad idea since it makes the lerp theoretically infinite. Probably use some other kind of smoothing such as a sinusoidal curve?
public class Test : MonoBehaviour
{
private Vector2 startPos; // position from where the player is dashing
private Vector2 targetPos; // position to where the player is dashing
public Vector2 dashDistance; // dash distance. Set x to -10, y to 0
private bool isDashing = false;
private float timeSinceDash;
public float dashTime; // time of dash (in seconds)
private float dashInterpolationCounter;
void Update()
{
if (Input.GetKeyDown(KeyCode.Space) && isDashing == false) // prevents dashing during the dash. Set KeyCode.Space to desired button press
{
startPos = transform.position; // sets the start position of the dash to the player position
targetPos += dashDistance;
isDashing = true;
timeSinceDash = 0;
dashInterpolationCounter = 0;
}
if (timeSinceDash < dashTime) // if the time since start of dash is < the time of dash (ie. dash is unfinished)
{
timeSinceDash += Time.deltaTime;
dashInterpolationCounter = Mathf.Sin(Mathf.PI/2 * timeSinceDash / dashTime); // change it so that it is one at the end of the dash
}
else // the time since start of dash = the time of dash (ie. dash is finished)
{
isDashing = false;
}
if (isDashing == true)
{
transform.position = Vector2.Lerp(startPos, targetPos, dashInterpolationCounter);
}
}
}
Thanks a lot! This worked for me mostly, the movement was still a bit wonky, so I changed it to make the target position base on the transform position.
public class Dodge6 : $$anonymous$$onoBehaviour
{
private Vector2 startPos; // position from where the player is dashing
private Vector2 targetPos; // position to where the player is dashing
public Vector2 dashDistance; // dash distance. Set x to -10, y to 0
private bool isDashing = false;
private float timeSinceDash;
public float dashTime; // time of dash (in seconds)
private float dashInterpolationCounter;
void Update()
{
if (Input.GetButtonDown("Jump Left") && isDashing == false) // prevents dashing during the dash. Set KeyCode.Space to desired button press
{
startPos = transform.position; // sets the start position of the dash to the player position
targetPos.x = transform.position.x -1;
targetPos.y = transform.position.y;
isDashing = true;
timeSinceDash = 0;
dashInterpolationCounter = 0;
}
if (Input.GetButtonDown("Jump Right") && isDashing == false) // prevents dashing during the dash. Set KeyCode.Space to desired button press
{
startPos = transform.position; // sets the start position of the dash to the player position
targetPos.x = transform.position.x + 1;
targetPos.y = transform.position.y;
isDashing = true;
timeSinceDash = 0;
dashInterpolationCounter = 0;
}
if (timeSinceDash < dashTime) // if the time since start of dash is < the time of dash (ie. dash is unfinished)
{
timeSinceDash += Time.deltaTime;
dashInterpolationCounter = $$anonymous$$athf.Sin($$anonymous$$athf.PI / 2 * timeSinceDash / dashTime); // change it so that it is one at the end of the dash
}
else // the time since start of dash = the time of dash (ie. dash is finished)
{
isDashing = false;
}
if (isDashing == true)
{
transform.position = Vector2.Lerp(startPos, targetPos, dashInterpolationCounter);
}
}
}
