Entity::AlignToVector

This method will align one axis of an entity along a specified vector in global space.

Syntax

void AlignToVector(const float x, const float y, const float z, const int axis = 2, const float rate = 1.0, const float roll = 0.0)
void AlignToVector(const Vec3& v, const int axis = 2, const float rate = 1.0, const float roll = 0.0)

Parameter	Description
v, (x, y, z)	alignment vector
axis	entity axis to align to the vector (0, 1, or 2)
rate	can be used to gradually align vector
roll	rotation around axis

Example

#include "UltraEngine.h"

using namespace UltraEngine;

int main(int argc, const char* argv[])
{
    //Get the displays
    auto displays = GetDisplays();

    //Create a window
    auto window = CreateWindow("Ultra Engine", 0, 0, 1280, 720, displays[0], WINDOW_CENTER | WINDOW_TITLEBAR);

    //Create a framebuffer
    auto framebuffer = CreateFramebuffer(window);

    //Create a world
    auto world = CreateWorld();

    //Create a camera
    auto camera = CreateCamera(world);
    camera->SetPosition(0, 0, -2);
    camera->SetClearColor(0.125);

    //Create light
    auto light = CreateBoxLight(world);
    light->SetRange(-10, 10);
    light->SetRotation(45, 35, 0);
    light->SetColor(2);

    //Create model
    auto box = CreateBox(world);
    box->SetColor(0, 0, 1);

    while (window->Closed() == false and window->KeyDown(KEY_ESCAPE) == false)
    {
        //Move the mouse to point the box
        auto mousepos = window->GetMousePosition();
        Vec3 dir;
        dir.x = mousepos.x - framebuffer->size.x / 2;
        dir.y = -(mousepos.y - framebuffer->size.y / 2);
        box->AlignToVector(dir, 1, 0.1);

        world->Update();
        world->Render(framebuffer);
    }
    return 0;
}