premake5.lua

newoption
{
    trigger = "graphics",
    value = "OPENGL_VERSION",
    description = "version of OpenGL to build raylib against",
    allowed = {
        { "opengl11", "OpenGL 1.1"},
        { "opengl21", "OpenGL 2.1"},
        { "opengl33", "OpenGL 3.3"},
        { "opengl43", "OpenGL 4.3"},
        { "opengles2", "OpenGLES 2.0"},
        { "opengles3", "OpenGLES 3.0"}
    },
    default = "opengl33"
}

function string.starts(String,Start)
    return string.sub(String,1,string.len(Start))==Start
end

function link_to(lib)
    links (lib)
    includedirs ("../"..lib.."/include")
    includedirs ("../"..lib.."/" )
end

function download_progress(total, current)
    local ratio = current / total;
    ratio = math.min(math.max(ratio, 0), 1);
    local percent = math.floor(ratio * 100);
    print("Download progress (" .. percent .. "%/100%)")
end

function check_raylib()
    if(os.isdir("raylib") == false and os.isdir("raylib-master") == false) then
        if(not os.isfile("raylib-master.zip")) then
            print("Raylib not found, downloading from github")
            local result_str, response_code = http.download("https://github.com/raysan5/raylib/archive/refs/heads/master.zip", "raylib-master.zip", {
                progress = download_progress,
                headers = { "From: Premake", "Referer: Premake" }
            })
        end
        print("Unzipping to " ..  os.getcwd())
        zip.extract("raylib-master.zip", os.getcwd())
        os.remove("raylib-master.zip")
    end
end

workspaceName = path.getbasename(os.getcwd())

workspace "GrudgePixel"
   location "build"
   configurations { "Debug", "Release" }

check_raylib()
include ("raylib_premake5.lua")

project "GrudgePixel"
   kind "ConsoleApp"
   language "C++"
   cppdialect "C++11"
   targetdir "bin/%{cfg.buildcfg}"

   files {
      "src/**.cpp"
   }

   includedirs { "include" }
   libdirs  { "lib/%{cfg.buildcfg}" }

   link_raylib()

   filter "system:windows"
      links { "opengl32", "gdi32", "winmm" }
      
   filter "configurations:Debug"
      defines { "DEBUG" }
      symbols "On"
      optimize "Off"
      runtime "Debug"

   filter "configurations:Release"
      defines { "NDEBUG" }
      optimize "On"
      runtime "Release"


newaction {
   trigger     = "clean",
   description = "clean the software",
   execute     = function ()
      print("clean the build...")
      os.rmdir("./build")
      os.rmdir("./bin")
      print("done.")
   end
}