Love2dCS

[endlesstravel]

Will it possible to reference external Love2D libraries?

Sorry, I do not quite understand what it means. Can be described in more detail?

[Davidobot]

Hey! I've just looked up this wrapper again and saw that a lot of progress has been made! Great work - I've been really put off using LÖVE due to Lua but this might actually draw me back.

How's performance look? Are there any benchmarks?

[churros]

Is this .NET → SDL with a 'LÖVE-like' API or is it actually .NET → LÖVE → SDL?
I wonder about the performance hit considering the latter option.

Anyway, kudos for the repository, looks well maintained.

[endlesstravel]

Hey! I've just looked up this wrapper again and saw that a lot of progress has been made! Great work - I've been really put off using LÖVE due to Lua but this might actually draw me back.

How's performance look? Are there any benchmarks?

Thank you for your appreciation
100k for draw circle, both get 12fps:
C#:

Code: Select all

        for (int i = 0; i < 1000 * 100; i++)
        {
            var  x = Mathf.Random() * 800;
            var  y = Mathf.Random() * 600;
            var  r = Mathf.Random() * 30 + 1;
            var c = Mathf.Random();
            Graphics.SetColor(c, c, c);
            Graphics.Circle(DrawMode.Fill, x, y, r);
        }
  

lua_t.png (2.63 KiB) Viewed 68143 times

lua:

Code: Select all

    for i=0, 1000 * 100 do
        x = love.math.random() * 800
        y = love.math.random() * 600
        r = love.math.random() * 30 + 1
        c = love.math.random()
        love.graphics.setColor(c, c, c)
        love.graphics.circle("fill", x, y, r)
    end
  

But it's just a simple test, and I'm not sure what happens in other situations.



------ update ----
this optimized version lua code for 15-16 fps:

Code: Select all

    lmr = love.math.random
    lgs = love.graphics.setColor
    lgc = love.graphics.circle
    for i=0, 1000 * 100 do
        x = lmr() * 800
        y = lmr() * 600
        r = lmr() * 30 + 1
        c = lmr()
        lgs(c, c, c)
        lgc("fill", x, y, r)
    end
    

[endlesstravel]

Is this .NET → SDL with a 'LÖVE-like' API or is it actually .NET → LÖVE → SDL?
I wonder about the performance hit considering the latter option.

Anyway, kudos for the repository, looks well maintained.

Thank you for your appreciatio !
it was `.NET → LÖVE → SDL?`
And i agree with you, I think it does have a performance loss

[Stifu]

If only the .NET → LÖVE part could be done in an AOT fashion, there would be no performance loss. Anyway, nice work.

[raidho36]

It's not a good benchmark because it basically just tests the rendering engine. To test language performance, you should for example implement a loop that adds together vectors using their class methods. As far as I know, C# doesn't have JIT compiler in it (but there's an ongoing effort) so it will not be nearly as fast as LuaJIT will do.

[Stifu]

As far as I know, C# doesn't have JIT compiler in it (but there's an ongoing effort) so it will not be nearly as fast as LuaJIT will do.

What do you mean? .NET has used JIT since almost the very beginning.

[raidho36]

From what I gather it's not an actual proper JIT (it generates some machine code but for the most part it just does nothing), and the entire AOT thing is just a bytecode generator. CoreRT is an ongoing development of a proper JIT for C# and Unity is working on it's own solution called Burst Compiler, as a part of it's DOTS evolution. In due time we might see C# supercede LuaJIT but I don't hold my breath (even LLVM is very far from beating hand crafted assembly).