SE HudProjection

using Sandbox.Game.EntityComponents;
using Sandbox.ModAPI.Ingame;
using Sandbox.ModAPI.Interfaces;
using SpaceEngineers.Game.ModAPI.Ingame;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.Immutable;
using System.Linq;
using System.Text;
using VRage;
using VRage.Collections;
using VRage.Game;
using VRage.Game.Components;
using VRage.Game.GUI.TextPanel;
using VRage.Game.ModAPI.Ingame;
using VRage.Game.ModAPI.Ingame.Utilities;
using VRage.Game.ObjectBuilders.Definitions;
using VRageMath;

namespace IngameScript
{
    partial class Program : MyGridProgram
    {
        IMyTextPanel debug = null;

        IMyTextPanel render = null;
        IMyCockpit cockpit = null;
        public Program()
        {
            Runtime.UpdateFrequency = UpdateFrequency.Update10;
            render = (IMyTextPanel)GridTerminalSystem.GetBlockWithName("render");
            debug = (IMyTextPanel)GridTerminalSystem.GetBlockWithName("debug");
            cockpit = (IMyCockpit)GridTerminalSystem.GetBlockWithName("Cockpit");
        }
        //GPS:TEST GPS:4559.53:2980.27:-2957.5:#FFB775F1:
        Vector3D test = new Vector3D(4559.53, 2980.27, -2957.5);
        public void Save()
        {

        }
        Vector2 testr;
        public void Main(string argument, UpdateType updateSource)
        {


            Vector3D offset = test - cockpit.GetPosition();
            debug.WriteText(offset.X + "," + offset.Y + "," + offset.Z+"\n");
            Vector3D offset_local = Vector3D.TransformNormal(offset, Matrix.Transpose(cockpit.WorldMatrix));

            double dist_to_screen = Me.CubeGrid.GridSize * 1.5;//1.5 blocks ey
            //Base6Directions.Direction
            Vector3D offset_screen_space = offset_local.Normalized();
            debug.WriteText(offset_screen_space.X + "," + offset_screen_space.Y + "," + offset_screen_space.Z + "\n", true);
            offset_screen_space = offset_screen_space / Math.Abs(offset_screen_space.Z) * dist_to_screen;//normalize then project out to the screen

            testr = new Vector2((float)offset_screen_space.X, (float)offset_screen_space.Y);

            debug.WriteText(offset_screen_space.X + "," + offset_screen_space.Y + "," + offset_screen_space.Z + "\n",true);

            Draw(render);
            Echo("" + t++);
        }
        int t = 0;

        float _textScale = 0.5f;
        Vector2 _screenMarkerSize = new Vector2(40, 40);
        void Draw(IMyTextSurface surface)
        {
            surface.ContentType = ContentType.SCRIPT;
            surface.Script = "";
            var textureSize = surface.TextureSize;
            var surfaceSize = surface.SurfaceSize;
            var center = textureSize * 0.5f;
            var offset = (textureSize - surfaceSize) * 0.5f;

            var scrw = (textureSize - surfaceSize);

            var textSize = _textScale; // * 512f / surfaceSize.Y;

            using (var frame = surface.DrawFrame())
            {
                MySprite sprite;
                Vector2 pos = new Vector2(testr.X * surfaceSize.X, -testr.Y * surfaceSize.Y) * 0.5f;
                // Draw corners
                sprite = MySprite.CreateSprite("SquareSimple",/* _screenMarkerSize * 0.5f + */center + pos, _screenMarkerSize);
                sprite.Color = Color.Red;
                frame.Add(sprite);

            }


        }
    }
}