now trying to build

flake.nix

@@ -1,5 +1,5 @@
 {
-    description = "Build Project X-001";
+    description = "Build Project Archimedes";
 
     inputs = {
         nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
@@ -9,23 +9,21 @@
         };
     };
 
-    outputs = { self, nixpkgs, imgui }@inputs: let
+    outputs = { self, nixpkgs, imgui }: let
             system = "x86_64-linux";
             pkgs = import nixpkgs { inherit system; };
     in {
 
-        packages.${system}.default = pkgs.stdenv.mkDerivation {
+        Archimedes = pkgs.stdenv.mkDerivation {
 
-            name = "Engine";
+            name = "Archimedes";
 
             src = ./src;
 
-            imgui = inputs.imgui;
+            #imgui = inputs.imgui;
 
-            buildInputs = with pkgs; [
+            /*buildInputs = with pkgs; [
-                vulkan-headers
+            ];*/
-                vulkan-loader
-            ];
 
             buildPhase = ''
                 g++ *.cpp -o $name 
@@ -38,26 +36,48 @@
 
         };
 
-        shaders = pkgs.stdenv.mkDerivation {
+        TestMenu = pkgs.stdenv.mkDerivation {
 
-            name = "Engine";
+            name = "TestMenu";
 
-            src = ./modules/shaders;
+            src = ./.;
 
-            buildInputs = with pkgs; [
+            /*buildInputs = with pkgs; [
-                shaderc
+            ];*/
-            ];
 
             buildPhase = ''
-                glslc *.vert -o vert.spv
+                g++ modules/testMenu/src/*.cpp -fpic -shared -I src -o $name 
-                glslc *.frag -o frag.spv
             ''; 
 
             installPhase = ''
                 mkdir -p $out/bin
-                cp *.spv $out/bin
+                cp $name $out/bin
             '';
 
         };
+
+        Print = pkgs.stdenv.mkDerivation {
+
+            name = "Print";
+
+            src = ./.;
+
+            /*buildInputs = with pkgs; [
+            ];*/
+
+            buildPhase = ''
+                g++ modules/print/src/*.cpp -fpic -shared -I src -I include -o $name 
+            ''; 
+
+            installPhase = ''
+                mkdir -p $out/bin
+                cp $name $out/bin
+            '';
+
+        };
+        
+
+        packages.${system}.default = self.Archimedes;
+
     };
 }

modules/print/src/print.cpp

@@ -0,0 +1,15 @@
+#include "print.h"
+
+Print::Print(void* h) {
+    handle = h;
+    name = "Print";
+}
+
+Print::~Print() {
+    std::cout << "Print Destroyed!\n";
+}
+
+void Print::run() {
+    std::cout << "Print lib loaded and run!\n";
+    App::Get().unload(self);
+}

modules/print/src/print.h

@@ -0,0 +1,16 @@
+#include "../../../include/Archimedes.h"
+
+class Print : public Module {
+
+    public:
+        Print(void*);
+        ~Print();
+        void run();
+
+};
+
+extern "C" { 
+    Module* create(void* handle) {
+        return new Print(handle);
+    }
+}

modules/testMenu/src/testMenu.cpp

@@ -2,6 +2,7 @@
 
 TestMenu::TestMenu(void* h) {
     handle = h;
+    name = "TestMenu";
 }
 
 TestMenu::~TestMenu() {

src/App.cpp

@@ -50,23 +50,23 @@ void App::load(std::string lib) {
     }
 
     Module::create_t* create = (Module::create_t*) dlsym(handle, "create");
+    
     if(dlerror()) {
         std::cout << "error finding create function in file: " << lib << std::endl;
     }
 
-    Module::destroy_t* destroy = (Module::destroy_t*) dlsym(handle, "destroy");
-    if(dlerror()) {
-        std::cout << "error finding destroy function in file: " << lib << std::endl;
-    }
-
     Module* m = create(handle);
 
     for(auto it = modules.begin(); it != modules.end(); it++) {
         
-        if((*it)->getName() != "") {
+        if((*it)->getName() != m->getName()) {
-
+            std::cout << "Module \"" << m->getName() << "\" is already loaded!\n";
+            return;
         }
     }
+
+    m->setSelf(modules.end());
+    modules.push_back(m);
 }
         
 void App::unload(std::list<Module*>::iterator it) {
@@ -78,15 +78,15 @@ void App::unload(std::list<Module*>::iterator it) {
 
 void App::handleArgs(const int& argc, char* argv[]) {
 
-    int i = 0;
+    int i = 1;
 
-    if(argc == 0) {
+    if(argc == 1) {
         printHelp();
         end();
     }
     
     while(i < argc) {
-        if(strcmp(argv[i], "-h") == 0) {
+        if(strcmp(argv[i], "-h") == 0 || strcmp(argv[i], "--help") == 0) {
             printHelp();
             end();
         } else {

src/Module.h

@@ -15,6 +15,8 @@ class Module {
         std::string getName() const { return name; }
         void* getHandle() { return handle; }
 
+        void setSelf(std::list<Module*>::iterator s) { self = s; }
+    
     protected:
         std::string name;
         void* handle;

src/pch.hpp

@@ -5,6 +5,9 @@
 #include <cstring>
 #include <list>
 
+//#include <chrono>
+//#include <thread>
+
 #include <dlfcn.h>
 
 #endif