Rotating Camera, maintaining HUD

tkearsey

I'm spinning the camera freely and need to have several HUD items anchor themselves to the screen and not spin. I've seen discussions that use large overlay actors to "fake" a stationary HUD and some that only use simple math for rotating the hud 90 degrees at a time. But has anyone managed to create a freely rotating camera with multiple HUD elements that don't move?

I know there must be some math that calculates the distance/angle to a orbiting body, but have no idea how to reverse that into a GS rule.

Any help is appreciated.

UtopianGames

We have a few Camera spin templates that keep the HUD still.

http://www.deepblueapps.com/rolling-bones/

http://www.deepblueapps.com/fall-fu-template/

http://www.deepblueapps.com/helicopter-hud-template/

Darren.

tkearsey

Great, just a question. I see that the rolling bones template seems to have multiple elements like scoring in the HUD, does the technique used in the helicopter template allow for this or is it just a large overlay graphic. Make sense?

UtopianGames

The Helicopter is a large graphic where as Rolling Bones are separate actors.

We have a playable rolling bones in the link to see what its like or you could download the game from the app store to have a closer look.

Darren.

dayofjackal

Hi Darren, quick question re rolling bones. I see it has a fixed background. How easy or hard would it be to make it a scrolling one?

Cheers

sparkania

this might also help

http://forums.gamesalad.com/discussion/53001/tip-for-spawning-static-actors#latest

UtopianGames

@dayofjackal Depends if you want to use 1 big actor (just tested with a 1920x1280 on a scrollable layer and it works but it might be a little difficult to have say 4 background actors and keep them stable and in position because the camera is rotating around although i haven't tested that so not sure how hard it would actually be.

If you want the background to rotate with the camera just put them on a scrollable layer its when you want them to counter the camera it becomes more difficult.

Darren.

dayofjackal

@DeepBlueApps.com cool. Multiple actors would be interesting but not sure how it would work. Guess there would be 4 way scroll depending if going left / right or up / down. Is it a case of just removing the background and creating a new scrollable one?