The Official Happiness Thread

[DoorM4n]

I was driving around Austin running an errand for my boss and I drove by the Rooster Teeth headquarters and passed out some fliers for an event we are holding. I met Barbara from RoosterTeeth and some of their camera guys. She is damn fine in person!!

[XZodia]

Cool, what's the event?

[DoorM4n]

it's a concert that the legislative caucus I am hired through is hosting, and they are hosting a famous mexican musician. I gave the rooster teeth pepes the fliers cause I wanted an excuse to interrupt them, haha. I just drove by really fast with my friend and said "hey, we're hosting an event at the capitol, yall should come. Btw, I was really big fans of yall back in high school, and Im glad to see yall in Austin. pass those fliers around!" haha, it was a spur of the moment drive by, but it was nonetheless pretty cool to meet the pepes there.

[XZodia]

I got a 3DS XL! =)

[troymac1ure]

Been spending my spare time over here and enjoying the challenges:
http://www.hackthis.co.uk/index.php

[Ogrish]

well i lost my house but, im staying with my bro, and im back online. 8)

[XZodia]

Been spending my spare time over here and enjoying the challenges:
http://www.hackthis.co.uk/index.php

Thanks troy, that site is addictive >_>

[Click16]

I got a 3DS XL! =)

What is 3ds xl?

[XZodia]

https://www.google.co.uk/search?q=3ds%2 ... 0wXbxIH4Bw

[Click16]

Oh lol! I thought you meant some sort of 3d modeling program! Haha OK. Yeah, I never had a DS. I only played handheld because of Pokemon. I think the GBA had the BEST pokemon games. Everything after it wasn't very good. (Only exception being the remakes of Silver and Gold.)

[troymac1ure]

Been spending my spare time over here and enjoying the challenges:
http://www.hackthis.co.uk/index.php

Thanks troy, that site is addictive >_>

You're getting there! I still need one more Basic X code.
It's a pretty cool site & I've learned a lot of new things just from doing the levels.

[OwnZ joO]

The metasploit framework can be fun to play with too. For one of my school projects we used it to set up a java exploit, but it was cool to see everything else you could easily set up with it.

[Grimdoomer]

Best semester, of my life. I only wish next semester would be as good as this one.

[DoorM4n]

Going to law schooooooool!

[JacksonCougar]

Projected a screen-coordinate onto a line then into a world coordinate: a month well spent. Now to figure out how to handle the undefined slope of a line in the code, and the projection to a ray instead of a plane.

Code: Select all

void Mouse_Move(object sender, OpenTK.Input.MouseMoveEventArgs e)
        {
            // if we are in 'drag-mode'
            if (DragMode)
            {
                //  store the mouse delta
                //var delta = Point.Subtract(e.Position, (Size)last_mouse);

                //  return the mouse to the previous position
                if (reset_mouse)
                {
                    Cursor.Position = last_mouse;
                    reset_mouse = false;
                    return;
                }
                RotateCamera(e.XDelta, e.YDelta);
                reset_mouse = true;


            }

            /* * *
             * Screen-based, Axis-restricted movement:
             * 
             * Project the origin of the coordinate system and the axis vector into screen-space as two points
             * Use those two points to get the equation of the line ax + b = y,
             * Get the mouse start point and end point and project both onto the line,
             * Project both those points back into world-coordinates... ?
             * * */
            var client_point = e.Position;
            var origin_point = new Vector3(client_point.X, client_point.Y, 0);
            var delta_point = new Vector3(client_point.X - e.XDelta, client_point.Y - e.YDelta, 0);

            var world_origin_coordinate = camera.UnProject(origin_point);
            var world_delta_coordinate = camera.UnProject(delta_point);


            var axis_origin = camera.Project(new Vector4(0, 0, 0, 1));
            var axis_normal = camera.Project(new Vector4(1, 0, 0, 1));


            axis_origin.Z = 0;
            axis_normal.Z = 0;

            // y = mx + b
            // b = y - mx

            var m = (axis_normal.Y - axis_origin.Y) / (axis_normal.X - axis_origin.X);
            var b = axis_normal.Y - (m * axis_normal.X);
            var y1 = m * 0 + b;
            var y2 = m * 640 + b;

            var x0 = 0.0f;
            var x1 = 640.0f;

            var A = -(axis_normal.Y - axis_origin.Y);
            var B = (axis_normal.X - axis_origin.X);
            var C = (A * axis_origin.X) + (B * axis_origin.Y);

            var yint = C / A;
            var xint = C / B;



            //var client_point = PointToClient(last_mouse);
            var inverse_m = -1 / m;

            var aspect_ration = (float)camera.ViewportWidth / (float)camera.ViewportHeight;
            //inverse_m *= aspect_ration;
            var b2 = origin_point.Y - (inverse_m * origin_point.X);
            var b3 = delta_point.Y - (inverse_m * delta_point.X);
            // inverse_m(x) + b = mx + b
            // y = ;

            var x_intercept = (b - b2) / (inverse_m - m);
            var y_intercept = m * x_intercept + b;

            var delta_x_intercept = (b - b3) / (inverse_m - m);
            var delta_y_intercept = m * delta_x_intercept + b;

            if (B == 0)
            {
                y1 = 0;
                y2 = 480;
                x0 = x1 = C / A;
                x_intercept = C / A;
                y_intercept = origin_point.Y;

                delta_x_intercept = C / A;
                delta_y_intercept = delta_point.Y;
            }
            if (A == 0)
            {
                x_intercept = origin_point.X;
                y_intercept = C / B;
                delta_x_intercept = delta_point.X;
                delta_y_intercept = C / B;
            }

            var axis_line_origin = camera.UnProject(new Vector3(x0, y1, 0));
            var axis_line_end = camera.UnProject(new Vector3(x1, y2, 0));


            var intercept_origin = camera.UnProject(new Vector3(origin_point.X, origin_point.Y, 0));
            
            var intercept_delta = camera.UnProject(new Vector3(delta_x_intercept, delta_y_intercept, 0));
            var intercept_point = camera.UnProject(new Vector3(x_intercept, y_intercept, 0));

            GL.LineWidth(3.0f);
            GL.Begin(BeginMode.Lines);
            GL.Color3(Color.Black);
            GL.Vertex3(axis_line_origin.Xyz);
            GL.Vertex3(axis_line_end.Xyz);
            GL.Color3(Color.Red);
            GL.Vertex3(intercept_origin.Xyz);
            GL.Vertex3(intercept_point.Xyz);
            GL.Color3(Color.Blue);
            GL.Vertex3(world_delta_coordinate.Xyz);
            GL.Vertex3(intercept_delta.Xyz);
            GL.End();

            GL.LineWidth(1.0f);




            var near0 = UnProject(ref camera.ProjectionMatrix, camera.ViewMatrix, camera.Viewport, new Vector3(x_intercept, y_intercept, 0.0f));
            var far0 = UnProject(ref camera.ProjectionMatrix, camera.ViewMatrix, camera.Viewport, new Vector3(x_intercept, y_intercept, 1.0f)).Xyz;
            //var origin = UnProject(ref camera.ProjectionMatrix, camera.ViewMatrix, camera.Viewport, new Vector3(0, 0, 0.5f));
            far0.Normalize();
            Ray r0 = new Ray() { Origin = near0.Xyz, Direction = far0 };

            var near1 = UnProject(ref camera.ProjectionMatrix, camera.ViewMatrix, camera.Viewport, new Vector3(delta_x_intercept, delta_y_intercept, 0.0f));
            var far1 = UnProject(ref camera.ProjectionMatrix, camera.ViewMatrix, camera.Viewport, new Vector3(delta_x_intercept, delta_y_intercept, 1.0f)).Xyz;
            //var origin = UnProject(ref camera.ProjectionMatrix, camera.ViewMatrix, camera.Viewport, new Vector3(0, 0, 0.5f));
            far1.Normalize();
            Ray r1 = new Ray() { Origin = near1.Xyz, Direction = far1 };
            float? distance0, distance1;

            var plane_normal = camera.Position;
            plane_normal.Normalize();

            var b0 = r0.Intersects(new Plane() { Distance = 0, Normal = new Vector3(0, 1, 0) }, out distance0);
            var b1 = r1.Intersects(new Plane() { Distance = 0, Normal = new Vector3(0, 1, 0) }, out distance1);

            if ((distance0.HasValue && distance1.HasValue) && (float.IsNaN(distance0.Value) || float.IsNaN(distance1.Value)))
            {
                b0 = r0.Intersects(new Plane() { Distance = 0, Normal = new Vector3(0, 0, 1) }, out distance0);
                b1 = r1.Intersects(new Plane() { Distance = 0, Normal = new Vector3(0, 0, 1) }, out distance1);
            }
            
            if (distance0.HasValue)
            {
                ray_intersection_point = r0.Origin + r0.Direction * distance0.Value;
                //ray_intersection_point.X /= ray_intersection_point.

                var origin_ray = r1.Origin + r1.Direction * distance1.Value;
                var d_v = ray_intersection_point - origin_ray;
                Translation_Gimbal.Translate((d_v), camera);
            }
           

            // endif 'drag-mode'
        }

        /* * *
         * Translation Gimbal Movement
         * 
         * Plan: project the axis of movement into screen coordinates,
         * then calculate the equation of that line. 
         * Next project a line from the mouse position to the line to 
         * determine where the mouse movement would move the point along the line.
         * Finally project back into world space and move the gimbal to the new point?
         * * */

Coding like a champ again. I need to take a linear algebra course lawl.

[XZodia]

I see your trying to Unproject a screen coordinate to a ray into the scene
This might help: https://www.google.co.uk/search?q=unpro ... oordinates

[JacksonCougar]

Simply trying to make a 3ds max transformation gizmo clone. Having difficulties still.

[Zaid]

Almost had a girlfriend, almost.

relevant

That made me laugh a lot. Just saying.

[CaptainPoopface]

Going to law schooooooool!

Hmmmm... I wouldn't recommend it. I considered law school, even took the LSAT and got a decent score. It was the hardest test I've ever taken, and definitely will make you smarter when you prepare for it. But you see one story after another about disillusioned law school grads who come out owing 6 figures and get some $35K salary doing hideously boring contract analysis (called being a "coder" in the legal profession) or legwork for real attorneys. Too much supply, not enough demand, unless you're really good at it. Think hard!

[OwnZ joO]

Going to law schooooooool!

Hmmmm... I wouldn't recommend it. I considered law school, even took the LSAT and got a decent score. It was the hardest test I've ever taken, and definitely will make you smarter when you prepare for it. But you see one story after another about disillusioned law school grads who come out owing 6 figures and get some $35K salary doing hideously boring contract analysis (called being a "coder" in the legal profession) or legwork for real attorneys. Too much supply, not enough demand, unless you're really good at it. Think hard!

I have also heard that there is an overpopulation of lawyers at the moment. Good luck if you follow through with it though!

[JacksonCougar]

Fuck yea: dot product is useful.

[XZodia]

Projecting a line onto another line mb?

[JacksonCougar]

Yea! Lines man.

That was a lot more work than I thought it would be.


now for rotations...

[neodos]

:O awesome stuff Jackson!

[Click16]

That's pretty freaking cool man. Keep up the good work!