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0x00004
0x00004
7:11 AM
Hello!
I want object to rotate from A angle to B angle 
	float startAngle = -135;
	float endAngle = -45;
	for (float i = degToRad(startAngle);i<degToRad(-45) ; ++i)
	{
		m_body->SetTransform(m_body->GetPosition(), degToRad(i));
	}
This doesnt work. What am i doing wrong?
What direction should i think?
 
trollingchar
trollingchar
8:08 AM
rotate instantly or gradually?
I assume that you want to rotate gradually
the problem is that your program doesn't pause to display the rotated object
there is a coroutine solution where you write yield return null to wait one frame and a solution where you apply a small change in the update function
 
 
2 hours later…
user92578
10:28 AM
@trollingchar Unity solution is not terribly useful for a C++ program
 
trollingchar
trollingchar
oh, my bad
 
 
3 hours later…
Vaillancourt
Vaillancourt
1:57 PM
They'll have coroutines in c++20
 
Pikalek
Pikalek
2:43 PM
I wonder if their going to discount / refund GDC tickets given all the coronavirus pull outs.
 
nwp
nwp
Sounds like a big no in the article considering that they'll just move to streaming. Then again may as well not do a conference.
 
Pikalek
Pikalek
Yeah, but if that's not what you paid for, I could understand it generating some strong negative reactions. Most everyone I've talked to in says the real value is in attending is stuff like meeting people, networking & impromptu discussions that happen organically around the planned events. Not sure that'll migrate to stream.
Well, maybe if they have some rent a drone option. You could VR into a drone & talk with others who've done the same. What could possibly go wrong with that?
 
nwp
nwp
That would be awesome. Combine with a VR headset and start puking from motion sickness immediately.
 
Pikalek
Pikalek
2:58 PM
And drone collisions. So we'd have to bill for repair insurance too. Smells like a cyberpunk money maker to me.
I have a friend who dabbles in the drone scene - last time I asked about VR hookup he said the latency is a deal breaker. Of course that was a year or two ago, maybe things have progressed.
 
nwp
nwp
Latency is super tricky to get down. But who knows. Maybe there are ways.
 
Pikalek
Pikalek
Yeah, a fair bit of everyday tech we have now was once science fiction / speculation.
 
Almo
Almo
latency is a frickin nightmare
damned speed of light shit
 
 
2 hours later…
JohnnyApplesauce
JohnnyApplesauce
4:48 PM
Math?
What's this guy doing?
106
A: How to determine if a point is in a 2D triangle?

andreasdrI agree with Andreas Brinck, barycentric coordinates are very convenient for this task. Note that there is no need to solve an equation system every time: just evaluate the analytical solution. Using Andreas' notation, the solution is: s = 1/(2*Area)*(p0y*p2x - p0x*p2y + (p2y - p0y)*px + (p0x - ...

What are"px" and "py"? p0y and so on make sense, but these two don't.
 
Elva
Elva
I think you were correct with your first statement. Math
 
JohnnyApplesauce
JohnnyApplesauce
And the help with it?
 
Elva
Elva
px and py are the point
p0..p2 is the triangle
 
JohnnyApplesauce
JohnnyApplesauce
Ha! Thank you.
 
user92578
5:19 PM
@Vaillancourt Have you looked into these? Can we do similar stuff to Unity with it? That would be really cool
 
Vaillancourt
Vaillancourt
@Tyyppi_77 not thoroughly, yet, no, but I understand that it is the intention. Yes, it would be!
 
user92578
Modern C++'s threading is the thing about standard library I miss the most at work
 
Vaillancourt
Vaillancourt
@Krangogram I find myself unable to help you today, due to a situation out of my control.
 
user92578
Like promises, futures and the works are so cool and easy to use compared to our class MyTask : public ITask approach
 
Vaillancourt
Vaillancourt
I wish I could use those!
 
user92578
5:35 PM
Looks like Krangogram's issues are the usual C++ value semantic issues
 
Krangogram
Krangogram
10:49 PM
@Vaillancourt No problem mate. I never expect any help whatsoever, please never feel any pressure from my side to fix my problems. I'm just coding for fun anyway really. @Tyyppi_77I just saw your message about my use of the std::vector and should use <unique_ptr>. I'd have never thought of that , so im keenly getting started trying that out. Thanks again all for your help
 

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