koobas.hobune.stream
Use Rigidbody2D's Drag to slow down flying character
I have a character that gets launched into the air with rb.AddForce(direction * punch_strength_value * punch_strength_total);
I want this character to be slowed down the higher he is in the air, creating a "soft-limit" so the character does not go too far up. I figured this could be done by changing the Rigidbodies drag according to the character's height, but I was wrong:
public float height_slowdown = 1;
void Update()
{
heigth = transform.position.y;
rb.drag = height * height_slowdown;
}
Using this, the character launches into the air and is then slowed down very abruptly as if there was an invisible wall (meaning the X value does not change anymore). He then falls very slowly to the ground.
The character starts at X:0 Y:0 if that's of any help.
How do I make the character to slow down his gain in height the higher he is?
As no one seems to have an answer I tried ins$$anonymous$$d of using a higher drag, to give the rigidbody a higher mass. Weirdly, after adding force to the rigidbody, the rb does not care about its mass anymore. Can someone explain?
Sounds like your problem is mostly coming from applying drag in all directions. Below are a few ways to apply a drag-like effect exclusively on the Y-axis of the velocity.
//This method removes a percentage of the velocity every frame and gets closer to zeroing that velocity the closer to max_height it gets.
float max_height = 100;
private void Update()
{
height = transform.position.y;
float reduceSpeadPercentage = height / max_height;
Vector3 velocity = rb.velocity;
velocity.y -= velocity.y * reduceSpeadPercentage;
rb.velocity = velocity;
}
//This method applies an increasingly powerful downward force the higher you go. Which will make objects flung up higher, fall down faster.
public float height_slowdown = 0.1f;
void Update()
{
height = transform.position.y;
float reduceSpeadPercentage = height / max_height;
Vector3 velocity = rb.velocity;
velocity.y -= height * height_slowdown;
rb.velocity = velocity;
}
