Conclusion

End of the Tutorial

Now you have a sample setup where you can move the player around, accept key presses and attach components and children to objects. If you need any further help in your journey of development. Head over to the documentation for a more detailed feature-list for each component and interaction.

If you felt the need to skip all that, here is the source code:

#include <Unified-Engine/core/instance.h>

#include <Unified-Engine/Objects/gameObject.h>
#include <Unified-Engine/Objects/Mesh/Defaults/cube.h>
#include <Unified-Engine/Core/Rendering/shader.h>
#include <Unified-Engine/Objects/Components/shaderObject.h>

#include <Unified-Engine/input/input.h>

#include <Unified-Engine/Objects/scriptObject.h>
#include <Unified-Engine/Core/time.h>

class CameraControl : public UnifiedEngine::ScriptableObject{
public:
    UnifiedEngine::GameObject* OBJ;

    CameraControl(UnifiedEngine::GameObject* Par, UnifiedEngine::ObjectComponent* Camera)
        : UnifiedEngine::ScriptableObject(Par)
    {
        OBJ = Par;

        OBJ = Par;
        OBJ->Name = "CamCam";

        UnifiedEngine::instantiate(OBJ);

        this->OBJ->Children.push_back(Camera);
        Camera->Parent = OBJ;
    }

    int Update(){
        //Player Movement
        if (UnifiedEngine::__GAME__GLOBAL__INSTANCE__->Input->Keyboard.KeyPressed(UnifiedEngine::Key_W))
            this->OBJ->transform.Position += 1.f*UnifiedEngine::__GAME__GLOBAL__INSTANCE__->GetMainCamera()->front * UnifiedEngine::Time.DeltaTime;
        if (UnifiedEngine::__GAME__GLOBAL__INSTANCE__->Input->Keyboard.KeyPressed(UnifiedEngine::Key_A))
            this->OBJ->transform.Position -= 1.f*UnifiedEngine::__GAME__GLOBAL__INSTANCE__->GetMainCamera()->right * UnifiedEngine::Time.DeltaTime;
        if (UnifiedEngine::__GAME__GLOBAL__INSTANCE__->Input->Keyboard.KeyPressed(UnifiedEngine::Key_S))
            this->OBJ->transform.Position -= 1.f*UnifiedEngine::__GAME__GLOBAL__INSTANCE__->GetMainCamera()->front * UnifiedEngine::Time.DeltaTime;
        if (UnifiedEngine::__GAME__GLOBAL__INSTANCE__->Input->Keyboard.KeyPressed(UnifiedEngine::Key_D))
            this->OBJ->transform.Position += 1.f*UnifiedEngine::__GAME__GLOBAL__INSTANCE__->GetMainCamera()->right * UnifiedEngine::Time.DeltaTime;
        if (UnifiedEngine::__GAME__GLOBAL__INSTANCE__->Input->Keyboard.KeyPressed(UnifiedEngine::Key_SPACE))
            this->OBJ->transform.Position += 1.f*UnifiedEngine::__GAME__GLOBAL__INSTANCE__->GetMainCamera()->up * UnifiedEngine::Time.DeltaTime;
        if (UnifiedEngine::__GAME__GLOBAL__INSTANCE__->Input->Keyboard.KeyPressed(UnifiedEngine::Key_LEFT_SHIFT))
            this->OBJ->transform.Position -= 1.f*UnifiedEngine::__GAME__GLOBAL__INSTANCE__->GetMainCamera()->up * UnifiedEngine::Time.DeltaTime;
        

        //Player Rotation
        glm::vec2 mPos = UnifiedEngine::__GAME__GLOBAL__INSTANCE__->Input->Mouse.GetPosition();

        //Update pitch yaw and roll
        UnifiedEngine::__GAME__GLOBAL__INSTANCE__->GetMainCamera()->transform.Rotation.x += static_cast<GLfloat>(mPos.y) * 10.f * UnifiedEngine::Time.DeltaTime;
        UnifiedEngine::__GAME__GLOBAL__INSTANCE__->GetMainCamera()->transform.Rotation.y += static_cast<GLfloat>(mPos.x) * 10.f * UnifiedEngine::Time.DeltaTime;

        if (UnifiedEngine::__GAME__GLOBAL__INSTANCE__->GetMainCamera()->transform.Rotation.x > 89.f)
            UnifiedEngine::__GAME__GLOBAL__INSTANCE__->GetMainCamera()->transform.Rotation.x = 89.f;
        else if (UnifiedEngine::__GAME__GLOBAL__INSTANCE__->GetMainCamera()->transform.Rotation.x < -89.f)
            UnifiedEngine::__GAME__GLOBAL__INSTANCE__->GetMainCamera()->transform.Rotation.x = -89.f;

        if (UnifiedEngine::__GAME__GLOBAL__INSTANCE__->GetMainCamera()->transform.Rotation.y > 360.f || UnifiedEngine::__GAME__GLOBAL__INSTANCE__->GetMainCamera()->transform.Rotation.y < -360.f)
            UnifiedEngine::__GAME__GLOBAL__INSTANCE__->GetMainCamera()->transform.Rotation.y = 0.f;

        //Resolution with scroll
        UnifiedEngine::WindowConfig conf = UnifiedEngine::__GAME__GLOBAL__INSTANCE__->__windows.front()->Config();

        int scroll = UnifiedEngine::__GAME__GLOBAL__INSTANCE__->Input->Mouse.Scroll();

        if(scroll == 1){
            conf.res_x *= 2;
            conf.res_y *= 2;
        }
        else if(scroll == -1){
            conf.res_x /= 2;
            conf.res_y /= 2;
        }

        if (conf.res_x <= 80)
            conf.res_x = 80;
        if (conf.res_y <= 45)
            conf.res_y = 45;

        if (conf.res_x >= 1280)
            conf.res_x = 1280;
        if (conf.res_y >= 720)
            conf.res_y = 720;

        UnifiedEngine::__GAME__GLOBAL__INSTANCE__->__windows.front()->LoadWindowConfig(conf);

        return 0;
    }
};

int main(){
    UnifiedEngine::__GLOBAL_CONFIG__.VersionMajor = 4;
    UnifiedEngine::__GLOBAL_CONFIG__.VersionMinor = 6;

    UnifiedEngine::__INIT__ENGINE();

    UnifiedEngine::WindowConfig WinConf = {.x = 1260, .y = 720, .res_x = 0, .res_y = 0, .title = "Test Program", .resizable = true, .fullScreen = false, .vsync = true, .fps = 60};
    WinConf.backgroundColor = {0, 0, 0};

    UnifiedEngine::Window GameWindow(WinConf);

    // Skybox
    UnifiedEngine::SkyboxSolidColor box(glm::vec3(135, 206, 235));
    UnifiedEngine::__GAME__GLOBAL__INSTANCE__->skybox = &box;

    //Camera
    UnifiedEngine::Camera Cam;
    UnifiedEngine::instantiate(&Cam);

    UnifiedEngine::Shader shader;
    UnifiedEngine::ShaderObject shaderObj(&shader);

    // Create the mesh using the standard cube
    UnifiedEngine::Mesh mesh;
    mesh = UnifiedEngine::Cube();

    // Create a game object that is in view
    UnifiedEngine::GameObject gOBJ(mesh, &shaderObj);
    gOBJ.transform.Position.z -= 5;
    UnifiedEngine::instantiate(&gOBJ);

    // Lock the mouse
    UnifiedEngine::InputPointer->Mouse.Cursor.Locked();

    UnifiedEngine::GameObject CamOBJ(UnifiedEngine::Mesh{}, nullptr);
    CameraControl Controller(&CamOBJ, &Cam);

    // Game loop
    while (!glfwWindowShouldClose(GameWindow.Context()))
    {
        // Check if any events have been activiated (key pressed, mouse moved etc.) and call corresponding response functions
        if(UnifiedEngine::__GAME__GLOBAL__INSTANCE__->Update()){
            FAULT("GAME_INSTANCE::FAILED TO UPDATE!");
            //TODO: Call some sort of deinitializer (UnifiedEngine::Terminate())
            exit(10);
        }

        if(UnifiedEngine::InputPointer->Keyboard.KeyPressed(UnifiedEngine::Key_ESCAPE)){
            break;
        }

        if(UnifiedEngine::__GAME__GLOBAL__INSTANCE__->Render()){
            FAULT("GAME_INSTANCE::FAILED TO RENDER!");
            //TODO: Call some sort of deinitializer (UnifiedEngine::Terminate())
            exit(11);
        }
    }

    // Terminate GLFW, clearing any resources allocated by GLFW.
    glfwTerminate();

    return 0;
}