YoggieEngine/SandboxApplication/Sandbox.cpp

#include <MyGraphicsEngine/Shader.h>
#include <MyGraphicsEngine/Window.h>
#include <MyGraphicsEngine/Camera.h>
#include <MyGraphicsEngine/Mesh.h>
#include <string>

#include "imgui.h"
#include "backends/imgui_impl_glfw.h"
#include "backends/imgui_impl_opengl3.h"

/*
* extern "C"
 {
    #include "lauxlib.h"
    #include "lua.h"
    #include "lualib.h"
}

#include <include/AssetManager/ModelImporter.h>

#include <gorilla/gau.h>
#include <gorilla/ga.h>
*/

int main(int argc, char* argv[]) {

    spdlog::info("Working directory: {}", argv[0]);

    //ModelImporter::Test();



    Mesh mesh;

    mesh.vertices = {
         glm::vec3( 0.5f,  0.5f, 0.0f), // top, right
         glm::vec3( 0.5f, -0.5f, 0.0f), // bottom right
         glm::vec3(-0.5f, -0.5f, 0.0f), // bottom left
         glm::vec3(-0.5f,  0.5f, 0.0f) // top left
    };


    mesh.elements = {
        0,1,3,
        1,2,3
    };
    Camera cam(glm::vec3(2.0f, 0.0f, 0.0f), glm::vec3(0.0f,0.0f,0.0f), 90.0f);

  
    BarinkWindow GameWindow(800, 600);
   
    IMGUI_CHECKVERSION();
    ImGui::CreateContext();
    ImGuiIO& io = ImGui::GetIO();
    (void)io;

    ImGui::StyleColorsDark();
    ImGui_ImplGlfw_InitForOpenGL(GameWindow.windowptr(), true);
    ImGui_ImplOpenGL3_Init("#version 440");
        

    std::string vertexShaderSource = "build/SandboxApplication/Debug/test.vs";
    std::string fragmentShaderSource = "build/SandboxApplication/Debug/test.fs";
    Shader shader (vertexShaderSource, fragmentShaderSource);

    /*
    *   lua_State* L = luaL_newstate();
    luaL_openlibs(L);
    luaL_dostring(L, "print('BarinkEngine')");
    luaL_dofile(L,"./script.lua");
    */

    spdlog::info("Vertices: {}, {} bytes", mesh.vertices.size(), sizeof(glm::vec3));
    spdlog::info("Elements: {}, {} bytes", mesh.elements.size(), sizeof(GLushort));

    unsigned int VBO, VAO, EBO;

    glGenVertexArrays(1, &VAO);
    glGenBuffers(1, &VBO);
    glGenBuffers(1, &EBO);

    glBindVertexArray(VAO);

    glBindBuffer(GL_ARRAY_BUFFER, VBO);
    glBufferData(GL_ARRAY_BUFFER, mesh.vertices.size() * sizeof(glm::vec3), &mesh.vertices[0], GL_STATIC_DRAW);

    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, EBO);
    glBufferData(GL_ELEMENT_ARRAY_BUFFER, mesh.elements.size() * sizeof(GLushort), &mesh.elements[0], GL_STATIC_DRAW);

    glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, 0);
    glEnableVertexAttribArray(0);

    glBindBuffer(GL_ARRAY_BUFFER, 0);
    glBindVertexArray(0);

 
    glm::vec3 rotation = glm::vec3(0.0f , 90.0f, 0.0f);

    
    glm::mat4 tran = glm::translate(glm::mat4(),glm::vec3(0.0f, 0.0f, 0.0f));
    glm::mat4 scale = glm::scale(glm::mat4(), glm::vec3(1.0f, 1.0f, 1.0f));
    glm::mat4 rot =
        glm::rotate(glm::mat4(), glm::radians(rotation.x), glm::vec3(1.0f, 0.0f, 0.0f)) *
        glm::rotate(glm::mat4(), glm::radians(rotation.y), glm::vec3(0.0f, 1.0f, 0.0f)) *
        glm::rotate(glm::mat4(), glm::radians(rotation.z), glm::vec3(0.0f, 0.0f, 1.0f));


    glm::mat4 model = tran * rot * scale;


    glm::mat4 projection = glm::perspective(cam.Zoom, (800.0f / 600.0f), 0.001f, 100.0f);

    /*
    * gau_Manager* mgr;
    ga_Mixer* mixer;
    ga_Sound sound;
    ga_Handle handle;
    gau_SampleSourceLoop* loopSrc = 0;
    gau_SampleSourceLoop** pLoopSrc = &loopSrc;
    gc_int32 loop = 0;
    gc_int32 quit = 0;


    gc_initialize(0);
    mgr = gau_manager_create();
    mixer = gau_manager_mixer(mgr);
    */
    




    while (!GameWindow.WindowShouldClose()) {
       

        GameWindow.Poll();

        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);

        shader.Use();
        shader.setUniformMat4("P", projection);
        shader.setUniformMat4("M", model);
        shader.setUniformMat4("V", cam.GetViewMatrix());
        glBindVertexArray(VAO);
        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, EBO);
        glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, NULL);
        glBindVertexArray(0);


        ImGui_ImplOpenGL3_NewFrame();
        ImGui_ImplGlfw_NewFrame();
        ImGui::NewFrame();

        ImGui::Begin("Test");

        ImGui::Text("Hello world!");
        bool isChecked = false;
        ImGui::Checkbox("Yellow!", &isChecked);
        float v = 5;
        ImGui::SliderFloat("Something to slide on..", &v, 1, 10 );

        ImGui::End();



        ImGui::Render();
        ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());


        GameWindow.SwapBuffers();
    }

    // Cleanup
    ImGui_ImplOpenGL3_Shutdown();
    ImGui_ImplGlfw_Shutdown();
    ImGui::DestroyContext();

    glDeleteVertexArrays(1, &VAO);
    glDeleteBuffers(1, &EBO);
    

}