using Microsoft.Xna.Framework;

namespace Kav
{
    public class Camera
    {
        public Matrix Transform { get; set; }
        public Matrix Projection { get; set; }
        public Matrix View
        {
            get
            {
                return Matrix.CreateLookAt(Transform.Translation, Transform.Forward, Transform.Up);
            }
        }

        public float FOV { get; set; } = MathHelper.PiOver4;
        public float AspectRatio { get; set; } = 1920f / 1080f;
        public float NearPlane { get; set; } = 0.1f;
        public float FarPlane { get; set; } = 200f;

        public Camera(Vector3 position, Quaternion orientation)
        {
            Transform = Matrix.CreateFromQuaternion(orientation) * Matrix.CreateTranslation(position.X, position.Y, position.Z);
            Projection = Matrix.CreatePerspectiveFieldOfView(
                FOV,
                AspectRatio,
                NearPlane,
                FarPlane
            );
        }

        public Camera(Matrix transform)
        {
            Transform = transform;
            Projection = Matrix.CreatePerspectiveFieldOfView(
                FOV,
                AspectRatio,
                NearPlane,
                FarPlane
            );
        }
    }
}