Stopping a player node when destination is reached

[system]

	Attention	Topic was automatically imported from the old Question2Answer platform.
	Asked By	BennieBe

Hi!

I have a question about using a direction vector and ensuring that a player reaches a specific target position using the mouse. I know that I can calculate the direction vector by subtracting the source from the destination position and then use this Vector in my move_and_slide function to reach a specific point based on mouse position, similar as depicted here:

https://www.davidepesce.com/2019/10/14/godot-tutorial-5-1-dragging-player-with-mouse/

Now, what I try to do is let the player move to the mouse position based on a mouse click. I am able to get to the point of the mouse position but unlike the example of above link, the player does not stop and just walks over that position. I know that I can simply use an if condition to check whether the character has reached his position, but I was wondering if there is a more elegant solution to this? I thought that the move_and_slide function would cater for only moving to that specific position if I pass in the respective Vector position. What other options would there be to ensure that the character stops at exactly the point where the mouse has clicked?

[system]

	Reply From:	estebanmolca

You can use linear_interpolate():

Vector2 linear_interpolate ( Vector2 b, float t ) Returns the result
of the linear interpolation between this vector and b by amount t. t
is in the range of 0.0 - 1.0, representing the amount of
interpolation.

http://kidscancode.org/godot_recipes/math/interpolation/

Hi!

Thanks for your answer! It helped me to understand this correctly!
So this works, however, your solution does speed up and slows down at the end,
but I needed a static speed. So instead of using linear_interpolate, I went
for move_toward which I tried to use before, but I guess I misunderstood
its use. So now this works fine, thanks again!

BennieBe | 2020-05-30 21:21