Orbit! Help! Orbit around center of screen.

[Atherial]

What is it you are trying to achieve?
I am attempting to make a square picture, of bit map format, rotate around the center of my screen.


What is the problem you are having?
Im not sure the equation for a rotation around the center, and any other previous tutorials have not been working, resulting with a static image (When using for statements.)


Please specify what version of Turing you are using
<Using 4.1.1>

I hate to ask for this, without any attempt at it myself, but I have been trying, but nothing ive tried has been near to working- If someone can point me in the proper direction, that would be greatly appreciated. Thanks so much for the help.
-Mackenzie

[Insectoid]

There's a number of ways you can do it. You could use the equation for a circle, or you could use physics with velocities, or trigonometry. There are plenty of ways, but ultimately you need to be changing the x and y coordinates of the image inside a loop. Can you get an image to move on the screen at all?

[Atherial]

Yes, Im able to move objects, using loops and view updates, but I dont really know how id do the rest- I understand how to loop and make x's and y's that change within a loop, but ive only been able to make them move in straight lines-
Thanks for the reply, any additional help would be much appreciated!
-Mac

[Atherial]

UPDATE:

Turing:

View.Set ("graphics,offscreenonly") var x := maxx div 2 var y := maxy div 2 var xDist, yDist : real %width/height of the circle  var angle : int := 10 %where the little goes around the big circle var hyp : int := 60 var earth : int := Sprite.New(Pic.FileNew("earth.bmp")) Sprite.SetPosition(earth,x,y,true) Sprite.Show(earth) loop     angle := angle - 1     % trig calculations     xDist := cosd (angle) * hyp     yDist := sind (angle) * hyp     Sprite.SetPosition(earth,round (x + xDist),round (y + yDist),true)     %Draw.FillOval (round (x + xDist), round (y + yDist), 5, 5, 26)         View.Update ()     delay (5)     %cls () end loop [size=18]Okay, so I have gotten this far. It spins, It works.. But- How would I change the distance that it spins from- Right now, I have no idea. It spins around the center of the turing default window, and id like it to go further away from the center. Thank you! -Mac [/size]

[Atherial]

Again, figured this out- Changing the number hyp is originally declared as changes it! Thanks!




SOLVED