Get angle between touch and object

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sanjibnanda

- Sute
- - Joined 20 Nov, 2017
  - 2 topics • 2 posts
- 1
- 9 Feb, 2018
- Quote
I'm trying to make something similar to Facebook's football game.

How can I get the angle between the ball and touch so that I can apply a force to the opposite side of that angle; or am I going about it the wrong way?

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- dop2000
- - Joined 26 May, 2016
  - 139 topics • 12,613 posts
- 1
- 9 Feb, 2018
- Quote
Apply impulse 100 at angle angle(touch.x, touch.y, ball.x, ball.y)
- Unconnected
- - Joined 6 Apr, 2016
  - 78 topics • 342 posts
- 1
- 9 Apr, 2019
- Quote
Does anybody happen to know what angle(x1,y1,x2,y2) will return if both points are at the exact same spot?
- dop2000
- - Joined 26 May, 2016
  - 139 topics • 12,613 posts
- 1
- 9 Apr, 2019
- Quote
Unconnected Probably 0. You can easily test it yourself.
- Unconnected
- - Joined 6 Apr, 2016
  - 78 topics • 342 posts
- 1
- 12 Apr, 2019
- Quote
I was away at the time.

0 wouldn't make sense because that is still an angle.

I will test it later and post, I was hoping someone would just happen to know.
- newt
- - Joined 12 Nov, 2008
  - 396 topics • 10,741 posts
- 1
- 12 Apr, 2019
- Quote
Unless you are rounding coordinates the likelihood of getting the same exact xy's is very low.
- Unconnected
- - Joined 6 Apr, 2016
  - 78 topics • 342 posts
- 1
- 12 Apr, 2019
- Quote
I tested, and it is 0.

angle(1,1,1,1) = 0

angle(1,1,2,1) = 0

angle(1,1,3,2) = 26.56505117707799

I guess I must write an event to prevent or change it from 0 if points are the same.

I was going to use it for a joystick for movement, so having it on the same point is likely to happen.