rotate objects the same distance depending on the distance to the center

Hey folks!

I'm despertly trying to archive the following:

There's a Level which must be rotated in order to move the player. Sounds pretty easy and it was, at first :-/

The problem is: The greater the distance to the center of the level, the faster the objects move around the pivot point. Its totaly logic but how can I caluclate the needed velocity to rotate everthing the at the same pace?

Here are an example. At the beginning points p1 and p2 have the same Y coordinate, e.g. p1(1,1) and p2(20,1).



Now the player starts to rotate the level and after a certian time it would look like this:
e.g.: p1(2,0.5) and p2(18,4)



p2 moved way more on the Y-Axis than p1.

I tried to rotate a empty gameobject with the level and grap its Y-Coordinates but since the whole level is made of rigidbodys i cant just transform the objects, i need to calculate a vector :-/

another attemp was to reduce the speed dependand on the distance between the player and the level center (with some divisions, multiplications etc.), but sooner or later i will get a negativ value und the level rotates in the opposite direction

Anyone any idea?

Thanks in advance

 

because its a 2D clone of Monkey Ball. You rotate the level and the player rolls physic based to the target.

I'm not quite sure if I understandyour approach.
The subjective rotation speed need to be same depending on how far the player is away from the center.

a simple linear function like

rotateDelta = rotateSpeed - distanceToCenter

wont work.

I tried different exp-functions but nothing generates a value that makes the level look to rotate at the same speed.

if I just rotate the camera I have to do all the calculations for the player velocity, rotation (its a ball) etc all by myself which exeeds my knowledge by far.
I worked as a web developer for the past 15 years so my math class lays way back. I'm currently working my way back to what i used to know but for now i just need this function to calculate the rotation speed ^^

 

thanks for you replies

I thnik the anwser in the link might work.
So i have to rotate the object around the players current x coordinate.
But i have no idea how to implement this.

currently i rotate the object using (simplyfied)

rigidbody2D.moveRotation(transform.rotation + rotateDelta * Time.FixedTimeDelta).

I guess know I have to calculate a vector and apply a force?
And R = distanceToCenter / 2 ?

 

i dont want to reposition the rigidbody. The struckte looks like this.

GameObject (Level)
- wall_1
- wall_2
- Obstacles
-obstacle1
-obstacle2

and so on.

first theese things only had a collider, but this messes with the physics calculations since you could rotate them only by using transform. so i had to add a rigidedbody to the root game object and all children (all in Kinematic mode).

i tested this with around 1000 objects and could't see a significant performance loss. But I#m always open to learn new things

So if I rotate the camera i have to do all the physic calculations by myself?

e.g. the camera rotates 50° to the left, then the ball should start to roll "down" the new slope. And if i rotate the camera to 0 the ball should slowly starts to stop. Since there is no actual slope i think i must calcalte a vector what the slope would look like and add it over time as a force to the player?
I have absolut no clue how to archive this. besides there are some power ups which accelerate the player in a direction, like a boost. i get this done by calculating a vector based on the rotation of the power up and apply that force.
(http://answers.unity3d.com/question...vector-based-on-direction.html#answer-1177190)

and what about jumping? At the moment I hit space and a force is applied to the player so the ball jumps, containing its current velocity.

is there really no such function that could calculate me a delta to lower the rotation speed depending on how far away i'm from the center?

i played with the anwser provided in the link but the results were.... crazy

edit:
whoa!! Thanks i will try your code at once. I'm really really thankful for your support! ))

 

you are kidding me? simply change the gravity....
I will try both. Im not sure if your script works for me since i dont want to reposition the object but its pretty impressive you did it on the fly for a newbie like me.

thank you so much!

 

Here is a video of what i mean:

at the end part the ground rotates way to fast, even with FixedUpdate() the physic gets messy

 

@MelvMay how is the alpha build going hehehe

 

rotating the camera did the trick! Thanks again