using StgSharp.Controlling;
using StgSharp.Math;

namespace StgSharp.Geometries
{
    public class Polygon4 : IPlainGeometry
    {
        internal Matrix3x4 vertexMat;

        internal Point vertex0 { get; set; }
        internal Point vertex1 { get; set; }
        internal Point vertex2 { get; set; }
        internal Point vertex3 { get; set; }

        internal readonly GetLocationHandler moveVertex0Operation = new GetLocationHandler(GeometryOperation.DefualtMotion);
        internal readonly GetLocationHandler moveVertex1Operation = new GetLocationHandler(GeometryOperation.DefualtMotion);
        internal readonly GetLocationHandler moveVertex2Operation = new GetLocationHandler(GeometryOperation.DefualtMotion);
        internal readonly GetLocationHandler moveVertex3Operation = new GetLocationHandler(GeometryOperation.DefualtMotion);

        public override Point RefPoint0
        {
            get { return new Point(vertexMat.transpose.colum0); }
        }

        public override Point RefPoint1
        {
            get { return new Point(vertexMat.transpose.colum1); }
        }

        public override Point RefPoint2
        {
            get { return new Point(vertexMat.transpose.colum2); }
        }

        public GetLocationHandler MovVertex01Operaion { get { return moveVertex0Operation; } }
        public GetLocationHandler MovVertex02Operaion { get { return moveVertex1Operation; } }
        public GetLocationHandler MovVertex03Operaion { get { return moveVertex2Operation; } }
        public GetLocationHandler MovVertex04Operaion { get { return moveVertex3Operation; } }

        public unsafe Polygon4()
        {
        }

        public override Line[] GetAllSides()
        {
            Line[] sides = new Line[4]
                {
                    new Line(vertex0,vertex1),
                    new Line(vertex1, vertex2),
                    new Line(vertex2, vertex3),
                    new Line(vertex3, vertex0)
                };

            return sides;
        }

        public override Plain GetPlain()
        {
            vertexMat.InternalTranspose();
            return new Plain(
                vertexMat.mat.colum0,
                vertexMat.mat.colum1,
                vertexMat.mat.colum2);
        }


        public virtual Vec3d MoveVertex0(uint tick) => moveVertex0Operation.Invoke(tick);

        public virtual Vec3d MoveVertex1(uint tick) => moveVertex1Operation.Invoke(tick);

        public virtual Vec3d MoveVertex2(uint tick) => moveVertex2Operation.Invoke(tick);

        public virtual Vec3d MoveVertex3(uint tick) => moveVertex3Operation.Invoke(tick);


        internal override void OnRender(uint tick)
        {
            uint nowTick = TimeLine.tickCounter._value;
            this.vertexMat.Colum0 = RefOrigin.position + moveVertex1Operation(nowTick);
            this.vertexMat.Colum1 = RefOrigin.position + moveVertex1Operation(nowTick);
            this.vertexMat.Colum2 = RefOrigin.position + moveVertex2Operation(nowTick);
            this.vertexMat.Colum3 = RefOrigin.position + moveVertex3Operation(nowTick);
        }
    }
}