I created an import project for Raylib .dylib on macOS.
It auto-generated the .fx file from raylib.h, but the result is very simple.
For example, it created:
public struct Raylib.Color
{
public byte r;
public byte g;
public byte b;
public byte a;
}
I would like to add a constructor and some members to Color,
for example the predefined colors like RayWhite, Maroon, Blue, etc.
Is it possible to write an import by hand using C# and maybe compile it into an .fx file?
I tried to use a simple raylib.cs file:
public class Raylib.__Global
{
public static extern void InitWindow(int width, int height, AnsiChar* title);
But it doesnât take this as an extern function and complains with âimplementation missingâ.
How do i tell the C# compiler it is an extern function in a .dylib?
How is it possible to write an import file by hand using C#?
Is there a place to find codes/libs/imports for Elements, created by other users?
Like pub.dev for Dart addon-libraries. Where to find Elements 3rd-party addon-libs?
The problem is, the .fx file represents what is actually there, inside the binary. If you were to somehow create a .fx file that claims thereâs a constructor for this struct, the .fx would be lying to the compiler, as there is no actual constructor to call, and your app would fail to link. :).
What you can do, is create an extension library where you can add additional code to the types, eg:
public __extension Raylib.Color
{
public this (byte r, g, b, a)
{
//... create the struct here.
}
}
and build that into a separate dylib (eg RaylibHelpers.dylib). and then reference both .fx from your real project.
Right now theres only two ways to get an .fx: my importing .h files, or by compiling your own binary with Elements.
This should be the right syntax; with extern, C# should not look for an implementation
in the code, bur rather try and link to the external method. you might need to provide an [DllImport] attribute to tell the linker what library InitWindow is defined in, though.
Whatâs the concrete error youâre getting? is it from the compiler or linker?
But: should InitWindow not be imported from the dylib and available via into Raylib.fx?
That is awesome! how did you get InitWindow to work?
namespace Raylib {
public using @bool = bool;
public static class Raylib.__Global {
[DllImport("libraylib.550.dylib"/*, EntryPoint = "InitWindow"*/)]
public static extern void InitWindow(int width, int height, AnsiChar* title);
[DllImport("libraylib.550.dylib")]
public static extern void CloseWindow();
[DllImport("libraylib.550.dylib")]
public static extern @bool WindowShouldClose();
[DllImport("libraylib.550.dylib")]
public static extern void SetTargetFPS(int fps);
[DllImport("libraylib.550.dylib")]
public static extern void ClearBackground(Color color);
[DllImport("libraylib.550.dylib")]
public static extern void BeginDrawing();
[DllImport("libraylib.550.dylib")]
public static extern void EndDrawing();
[DllImport("libraylib.550.dylib")]
public static extern void DrawText(AnsiChar* text, int posX, int posY, int fontSize, Color color);
}
}
The actual console app:
namespace ConsoleApplicationIsland {
static class Program {
public static Int32 Main(string[] args) {
InitWindow(800, 450, "raylib [core] example - basic window");
SetTargetFPS(60);
while (!WindowShouldClose()) {
BeginDrawing();
ClearBackground(Colors.RayWhite);
DrawText("Congrats! You created your first window!", 190, 200, 20, Colors.Maroon);
DrawText("powered by: RemObjects Elements", 190,250,20,Colors.Maroon);
EndDrawing();
}
CloseWindow();
return 0;
}
}
}
But when I create a Mac Application project (without Island!), DllImport and EntryPoint are not available!
We need a project type âMac App with Islandâ, or DllImport and EntryPoint (maybe also CallingConvention?) support for Mac Apps without Island.
You should be able to just sue the non-Istald n template, and manually change the project type (at the bottom of the .elements file) from Toffee to Island.Darwin.
Not sure why we donât have this as a templateâŚ
THAT said, if youâre purely doing macOS, I still recommend using Toffee over Island, for now. Island is mostly useful if you wanât take all platforms natively, at the cost of some things not being as âCocao-yâ (or Obejctive-C-y) under the hood as they should/could be for macOS.
Thanks, changing from Toffee to Island.Darwin works when i put
the raylib .dylib into /usr/local/lib only.
The .dylib is copied into the Frameworks directory within the .app,
but the rpath is not set to this directory by the Fire/Elements compiler.
I tried to change the rpath using install_name_tool but got an error:
object: RaylibTest002 malformed object (unknown load command 12)
otool -L RaylibTest002
RaylibTest002:
/usr/lib/system/libdyld.dylib (compatibility version 1.0.0, current version 1.0.0)
/usr/lib/system/libunwind.dylib (compatibility version 1.0.0, current version 1.0.0)
/usr/lib/system/libsystem_malloc.dylib (compatibility version 1.0.0, current version 1.0.0)
/usr/lib/libiconv.2.dylib (compatibility version 1.0.0, current version 1.0.0)
/usr/lib/system/libmacho.dylib (compatibility version 1.0.0, current version 1.0.0)
/usr/lib/system/libsystem_c.dylib (compatibility version 1.0.0, current version 1.0.0)
/usr/lib/system/libsystem_info.dylib (compatibility version 1.0.0, current version 1.0.0)
libraylib.550.dylib (compatibility version 1.0.0, current version 1.0.0)
/usr/lib/system/libsystem_m.dylib (compatibility version 1.0.0, current version 1.0.0)
/System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation (compatibility version 1.0.0, current version 1.0.0)
/usr/lib/system/libsystem_blocks.dylib (compatibility version 1.0.0, current version 1.0.0)
/usr/lib/system/libsystem_kernel.dylib (compatibility version 1.0.0, current version 1.0.0)
/System/Library/Frameworks/Foundation.framework/Versions/C/Foundation (compatibility version 1.0.0, current version 1.0.0)
/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1242.0.54)
/usr/lib/system/libdispatch.dylib (compatibility version 1.0.0, current version 1.0.0)
/usr/lib/system/libsystem_pthread.dylib (compatibility version 1.0.0, current version 1.0.0)
/usr/lib/system/libsystem_platform.dylib (compatibility version 1.0.0, current version 177.200.7)
/usr/lib/libobjc.A.dylib (compatibility version 1.0.0, current version 1.0.0)
