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https://github.com/anael-seghezzi/CToy

Interactive C live coding environment
https://github.com/anael-seghezzi/CToy

livecoding tcc

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Interactive C live coding environment

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README 

        
C-Toy

====



C-Toy is an interactive C(99) coding environment based on [TCC](http://bellard.org/tcc/).



Small, simple, no bullshit. Write cross-platform C code and see the result immediately. No installation or compiler required, download (<4mb), unzip, run CToy and play. Ready for Windows, MacOSX and Linux. Ideal for prototyping, learning, teaching...



Features

--------



* CToy: program update on file save (use any text editor)

* CToy_player: to publish your project (dynamic update disabled)

* API for window managment, inputs, persistent memory...

* Image processing with [MaratisTCL](https://github.com/anael-seghezzi/Maratis-Tiny-C-library)

* OpenGLES-2

* OpenAL

* Portable pen-tablet support (Wacom, etc)

* Use C-symbols from native dynamic libraries (*.dll etc) : just copy libraries in your_ctoy_path/lib/

* Pre-built Dear-Imgui suport (https://github.com/ocornut/imgui)

* Can also compile your project with other compilers (CMake script for gcc, vs, mingw)

* Emscripten compatible



Download

--------



[- CToy 1.06 Win64](http://anael.maratis3d.com/ctoy/bin/CToy-1.06-WIN-x86_64.zip)


[- CToy 1.05 MacOSX](http://anael.maratis3d.com/ctoy/bin/CToy-1.05-OSX_10.6-x86_64.zip)


[- CToy 1.05 Linux64](http://anael.maratis3d.com/ctoy/bin/CToy-1.05-Linux64-x86_64.zip)


[- [all versions]](http://anael.maratis3d.com/ctoy/bin/)



Requirement For Linux: OpenAL



Getting started

---------------



- Launch CToy

- Open src/main.c using your favorite text editor

- Start coding (samples included)

- Save your file(s) and see the result in realtime






Usage

-----



C-Toy expects a main file in src/main.c.


But instead of the standad C "main" function, the entry points are "ctoy_begin", "ctoy_main_loop" and "ctoy_end".



The compulsory "Hello, World!" program is then (in src/main.c):


```c

#include  // ctoy API (including frequently used ANSI C libs)



void ctoy_begin() // called at the beginning of the program

{

   printf("Hello, World!\n");

}



void ctoy_main_loop() // called at every update of the main loop

{}



void ctoy_end() // called at the end of the program

{}

```

Every time you modify src/main.c or any other file connected to it (directly or recursively included), C-Toy will recompile and restart the program dynamically.



One other difference with standard C is the use of persistent memory to maintain a bloc of memory intact between recompiles.

For example:



```c

#include 



void *persistent_memory = NULL;



void ctoy_begin()

{

   if (ctoy_t() == 0) {

      persistent_memory = calloc(256, 1); // allocate 256 bytes with zero value

      ctoy_register_memory(persistent_memory); // register persistent memory

   }

   else {

      persistent_memory = ctoy_retrieve_memory(); // retrieve persistent memory

   }

}



void ctoy_main_loop()

{

   int *persistent_counter = (int *)persistent_memory; // access a piece of persistent memory

   (*persistent_counter)++; // do something with the data

   printf("persistent_counter = %d\n", (*persistent_counter)); // print the content

}



void ctoy_end()

{}

```

(You can store any data that was manually allocated with malloc, it can be an array or a global pointer. Just avoid storing function pointers, as functions addresses may change after recompiles, or update them after calling ctoy_retrieve_memory)



Documentation

-------------



C-Toy API: https://github.com/anael-seghezzi/CToy/blob/master/ressources/include/ctoy.h


MaratisTCL: https://github.com/anael-seghezzi/Maratis-Tiny-C-library


OpenGLES2: https://www.khronos.org/registry/OpenGL-Refpages/es2.0/


OpenAL: https://www.openal.org/documentation/OpenAL_Programmers_Guide.pdf



Tutorials and examples

----------------------



Wiki: https://github.com/anael-seghezzi/CToy/wiki



License

-------



CToy is licensed under the zlib/libpng License.



Building CToy from sources (CMake)

----------------------------------



**Unix:**



    mkdir Build

    cd Build

    cmake -G "Unix Makefiles" ../ -DCMAKE_INSTALL_PREFIX=../bin -DCMAKE_BUILD_TYPE=Release

    make

    make install



**Windows:**



    mkdir Build

    cd Build

    cmake -G "Visual Studio 11 Win64" ../ -DCMAKE_INSTALL_PREFIX=../bin



(libtcc.dll and libtcc.dylib where pre-built from a fork of tcc:

[libtcc-fork](https://github.com/anael-seghezzi/tcc-0.9.26))