BEPUphysics
UnrealCLR
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BEPUphysics | UnrealCLR | |
---|---|---|
5 | 37 | |
2,149 | 3,035 | |
3.2% | - | |
8.9 | 2.6 | |
4 days ago | 11 months ago | |
C# | C# | |
Apache License 2.0 | MIT License |
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Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
BEPUphysics
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Current state of 2D game code-first frameworks?
The best pure-C# physics library (hands-down) is bepuphysics2, which unfortunately is mainly a 3D physics library, but could be used for 2D if you wanted to get your hands dirty.
- Physics Engine
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Open Source C++ Physics Libraries for Dedicated FPS Server?
Bepu Physics is pretty good and is written in really optimized C#, the author's blog post are really interesting to read.
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GJK: Collision detection algorithm in 2D/3D
The usual approach is some form of sweep to get a time of impact. Once you've got a time of impact, you can either generate contacts, or avoid integrating the involved bodies beyond the time of impact, or do something fancier like adaptively stepping the simulation to ensure no lost time.
If the details don't matter much, it's common to use a simple ray cast from the center at t0 to the center at t1. Works reasonably well for fast moving objects that are at least kinda-sorta rotationally invariant. For two dynamic bodies flying at each other, you can test this "movement ray" of body A against the geometry of body B, and the movement ray of body B against the geometry of body A.
One step up would be to use sphere sweeps. Sphere sweeps tend to be pretty fast; they're often only slightly more complicated than a ray test. Pick a sphere radius such that it mostly fills up the shape and then do the same thing as in the previous ray case.
If you need more detail, you can use a linear sweep. A linear sweep ignores angular velocity but uses the full shape for testing. Notably, you can use a variant of GJK (or MPR, for that matter) for this: http://dtecta.com/papers/jgt04raycast.pdf
If you want to include angular motion, things get trickier. One pretty brute forceish approach is to use conservative advancement based on distance queries. Based on the velocity and shape properties, you can estimate the maximum approaching velocity between two bodies, query the distance between the bodies (using algorithms like GJK or whatever else), and then step forward in time by distance / maximumApproachingVelocity. With appropriately conservative velocity estimates, this guarantees the body will never miss a collision, but it can also cause very high iteration counts in corner cases.
You can move a lot faster if you allow the search to look forward a bit beyond potential impact times, turning it into more of a root finding operation. Something like this: https://box2d.org/files/ErinCatto_ContinuousCollision_GDC201...
I use a combination of speculative contacts and then linear+angular sweeps where needed to avoid ghost collisions. Speculative contacts can handle many forms of high velocity use cases without sweeps- contact generation just has to be able to output reasonable negative depth (separated) contacts. The solver handles the rest. The sweeps use a sorta-kinda rootfinder like the Erin Catto presentation above, backed up by vectorized sampling of distance. A bit more here, though it's mainly written for users of the library: https://github.com/bepu/bepuphysics2/blob/master/Documentati...
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Early Demo of Dynamic Blocky Lighting System
I use https://github.com/bepu/bepuphysics2. I haven't worked with 3d physics engines before so I can't really comment on it's quality but it is definitely an impressive project! The developer is very active and helpful and some of the demo scenes are pretty large and complex.
UnrealCLR
- Since you're asking yes u can use C# in unreal
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Unity plan pricing and packaging updates
https://github.com/nxrighthere/UnrealCLR
I'm also surprised though they haven't just gone and added C# support as a first class option, it seems like such an obvious win.
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Those who have worked in both unreal and unity, what have your experiences been like?
You can use C# in unreal: https://github.com/nxrighthere/UnrealCLR, they even got an epic megagrant.
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C#
Surprise motherfucker
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Will unreal add C# as an extra language?
UnrealCLR
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How come Godot is by far the most recommended game engine, yet there are very few noticeable successful games made by it?
UnrealCLR has an Epic megagrant and supports .NET 6 already.
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I’ll take “sentences I never thought I’d write” for 200, Alex
I mean, technically Unreal does have C# support via their community, but it lags a bit behind the engine and isn’t as fully featured as Unity or even Godot https://github.com/nxrighthere/UnrealCLR
- [PC Gamer] Unity is merging with a company who made a malware installer
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Why is unity partnering with a company best known for making malware?
Biggest thing to note is that there's no stable release as of yet, so using UnrealCLR right now might not be the best idea for commercial games. There's also a few engine APIs missing from UnrealCLR, but from my own understanding, most of the common ones are there and ready to use.
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Unity Employees "Mad and Stressed Out" Amidst Unexpected Layoffs
Wish they would turn this into an officially supported project: https://github.com/nxrighthere/UnrealCLR
What are some alternatives?
JoltPhysics - A multi core friendly rigid body physics and collision detection library, written in C++, suitable for games and VR applications.
MonoGame - One framework for creating powerful cross-platform games.
Stride Game Engine - Stride Game Engine (formerly Xenko)
entt - Gaming meets modern C++ - a fast and reliable entity component system (ECS) and much more
Xenko
UrhoSharp - Code to integrate with the Urho3D engine
Nez - Nez is a free 2D focused framework that works with MonoGame and FNA
Harmony - A library for patching, replacing and decorating .NET and Mono methods during runtime
osu-framework - A game framework written with osu! in mind.
Duality - a 2D Game Development Framework