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Adjustable game area

Nov 14, 2011 at 9:53 AM
Edited Nov 14, 2011 at 9:56 AM

hi ohan I am trying to make my game are adjustable.

i ask the user to put the groundmarker then I keep it's worldtransformation.

img src="

then user removes the groundmarker, and using the toolbarmarker sets the game area.

the problem is, it is not always level.

also the box moves up or down instead of size increasing in y axis. the x axis works fine. the problem is that when i move the toolbar marker further away from camera the red box moves up instead of sticking on the ground.

here is a video

here is how i do it

 if (MaxX < setupMarkerNode.WorldTransformation.M41)        //setupMarkerNode is the small toolbarMarker           

MaxX = (int)setupMarkerNode.WorldTransformation.M41;               

if (MinX > setupMarkerNode.WorldTransformation.M41)                   

MinX = (int)setupMarkerNode.WorldTransformation.M41;               

if (MaxY < setupMarkerNode.WorldTransformation.M42)                   

MaxY = (int)setupMarkerNode.WorldTransformation.M42;               

if (MinY > setupMarkerNode.WorldTransformation.M42)                   

MinY = (int)setupMarkerNode.WorldTransformation.M42;


Matrix mat = groundNodeTransformation;  //groundNodeTransformation is groundMarkerNode.Worldtransformation which is saved when space is pressed

mat.M41 = (MaxX + MinX)/2;                 

mat.M42 = (MaxY + MinY)/2;

boxNode.Model = new Box((MaxX - MinX), (MaxY - MinY), 2);  //boxNode is the red box

boxTransNode.WorldTransformation = mat;


do you have any suggestions to do this better. i am basically trying to do what these guys are doing btw 0:08 - 0:30 (without the height, for now)


thanks for your help.

Nov 22, 2011 at 10:00 PM

do you have any advice? i would really appreciate. 

Nov 22, 2011 at 10:31 PM

I don't have much time now, so I can only respond to those posts that I have answer right away without thinking or looking into details.


Dec 4, 2011 at 10:16 AM

if you get anytime later, please have a look. 

we are using goblin for our senior design project, and i would really appreciate your help.