the collisionmap class is nothing than a color map reader.
that would be for instance the map seen from above.
each kind of element having its own color.

the class, at runtime, once you pass it a coordinate x,y on the map (the x,z of 
the camera in ratio), reads the colormap.
if a color is found that you have declared, it fires an event.

so the class doesn't handle the collision 
if you set say where your table is a yellow region on that map
basically after you have set the "color" listener, it triggers on the yellow 
reading

collisionmap = new CollisionMap(mycolormap, this, 1 , 1); //here 1/1 ratio on x 
and y. if your floor is say 2048x2048 and map 1024x1024, pass 2,2
collisionmap.setColorEvent(0xFFFF00, "yellow", onYellow);

private function onYellow(event:Event):void
{
        trace("WARNING this is an valuable furniture, look out!!";
}

what you do with the collision reading, is up to you. Bartek, for instance, for 
its circuit game, used a similar construction
where the color was different from the main road. --> slowDown();

but when it comes to real collision handling, i would consider take a look at 
BSP generation as David suggested, 
in fact thats the reason why we've spend the time and effort to make it in the 
first place.

as a side note, take care making the colormap, if you use flash lib and the 
source is not a vector info that you draw, that
compression, might influence the colors. so no event is triggered. So either 
you apply a custom threshold to the class, 
or the easy way, test the colors at locations you know the exact color. There 
is a getter just for that reason in the class.

Fabrice


On Jun 9, 2010, at 4:46 PM, joebass wrote:

> I'm a newbie so take my comments with a grain of salt.  My
> understanding is that loading models as opposed to constructing in
> Away with the extrude classes or primitives will require more
> resources.  However, it may be difficult to do everything you'd like
> within the native Away classes.  If you do use a 3D modeler, get it
> into PreFab and use the export features, adding your models within
> your code is a breeze.  So cool Fabrice.
> 
> As far as the collision map stuff with the Frustum example, it was a
> challenge for me to adopt them too.  It took some playing around with
> the orientation of the collision map image (I added a plane and
> applied the map image to it to get an idea of orientation.  Also
> scales of the collision image and your model are things you may have
> to look at.  Then it's just a matter of applying your geometry to the
> image with trial and error.
> 
> 
> On Jun 9, 9:08 am, le_unam <[email protected]> wrote:
>> Thanks for your fast answers.
>> 
>> I have PreFab installed, but i`m not really used to it, so i have to
>> learn how it works. Of course to model all elements is a way i knew
>> before but i thought loading models would slow down the swf. Doesnt
>> it?
>> 
>> I know frustum hotel room demo and i got some great help from it too,
>> but all in all i think it contains too much information, that i can
>> understand the background behind all. i tried to take the collisionmap
>> from there but i didnt get it work = (
>> Is there any example in the web with an collisionmap for an easy room
>> with only one cube in the center so that everybody can understand it?
>> all examples are so complicated i think, it has to be more easier.
>> 
>> On 9 Jun., 14:52, joebass <[email protected]> wrote:
>> 
>> 
>> 
>>> As far as camera and movement other than what David mentioned, I'm
>>> working on something similar and found the Frustum Hotel Room demo to
>>> be a great help.
>> 
>>> On Jun 9, 8:38 am, David Lenaerts <[email protected]> wrote:
>> 
>>>> I would use a 3D modeler to create that (well, if I could model). It's
>>>> really not easy to do it by compositing planes etc, and would probably not
>>>> result in efficient models.
>>>> You could use Blender, for instance: it's free, but it's user interface is
>>>> sent from hell. You can export it in a format compatible with Away3D (for
>>>> instance as an obj file). If you use PreFab and model to some restrictions,
>>>> you can use Prefab3D and the BSP builder to get the walk-around for free :)
>> 
>>>> On Wed, Jun 9, 2010 at 2:20 PM, le_unam <[email protected]> wrote:
>>>>> Hey guys i have some basic questions about creating a room and walking
>>>>> through it. i have already created a room and i am able to walk
>>>>> through but i dont know if i took the right way to create it. Now i
>>>>> just want to get some general questions.
>> 
>>>>> For the First person view, to walk through my room i decided to took
>>>>> the SpringCam. Would you use SpringCam too or is there an other, maybe
>>>>> better way? My Problem with SpringCam is that the relations of Walls,
>>>>> floor and roof seem to be broken. if i take the measurments of my room
>>>>> at home and project them to away3d it seems to be incorrect. my walls
>>>>> at home are 2,20 meters so i tried to make 220px in away. my cube,
>>>>> which i follow with springcam, i place at y = 180 because i thought, i
>>>>> am 1,80meters. but this gets a bad result in relation to the other
>>>>> elements. You know? what is a good way to go there? i can solve this
>>>>> problem if i set the height down and keep the widths but that isnt
>>>>> what i want.
>> 
>>>>> Another question is how to create a room. I created my rooms
>>>>> exclusively by taking planes for each wall or floor or roof, but some
>>>>> guys say you should use a cube. Of yourse when i just want to create
>>>>> an easy room with 4 walls i can take a cube but what when the room has
>>>>> no symmetrie or for example windows? Is there a trick to handle this
>>>>> or are planes the right way?
>> 
>>>>> In dependence on this ... how to create a rounded wall or other
>>>>> rounded selfmade elements? What can i use? I heared something about
>>>>> SegmentExtrude, LinearExtrude or PathExtrude but i cant get detailled
>>>>> information about this classes and how to handle them. What leads to
>>>>> my last point.
>> 
>>>>> What is the best way to get used with away3d? How can i learn away3d
>>>>> the best way? Where should i have the information how to use
>>>>> SegmentExtrusion for example. It seems to be more than two lines of
>>>>> code. if someone takes the time to help me and answer me my questions
>>>>> i would be very happy and grateful.
>> 
>>>>> Sorry for my bad english.
>> 
>>>>> Greetz Manu
>> 
>>>> --http://www.derschmale.com-Hidequoted text -
>> 
>>>> - Show quoted text -- Hide quoted text -
>> 
>> - Show quoted text -

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