do i need to use Lua as the coding language or can i use another like C++ for example?
You need to use Lua.
To expand on Ed’s answer. For Corona SDK, you only use Lua. There is no interface to any native languages. However we do offer Corona Enterprise which allows you to extend Corona SDK using C++, Objective C, Java, etc. However the Corona parts are still done in Lua. Only the native extensions would be done in C++. Nor can C++ be used to call our API calls like display.newCircle().
Rob
You need to use Lua.
To expand on Ed’s answer. For Corona SDK, you only use Lua. There is no interface to any native languages. However we do offer Corona Enterprise which allows you to extend Corona SDK using C++, Objective C, Java, etc. However the Corona parts are still done in Lua. Only the native extensions would be done in C++. Nor can C++ be used to call our API calls like display.newCircle().
Rob