Hey guys

I wondered if there is any possibility to check wheter two models overlay each other or to check if there is any intersection between two or more models or not.

I want to place buildings in a rts-like game.
i want to check if a certain building can be placed at the desired spot. It's not tilebased though.
it should just check:

"is there a model intersecting with this preview of the model which should be placed
-> yes - you're not able to place the model
-> no - place the model at the desired spot.

Or is there a way to trace with the whole body of a model? I tried several things but the traceray seems always to be smaller than the model i want to place

i hope you're able to help me

Roxas~

not exactly what you want but i already had an example for that.

probably this was for teaching something to someone and may be using unnecessary c_trace calls, so there is room for a lot of improvement.

click on an image to build a building, higlight a building and press DEL to delete
press R to rotate while building.f9 toggles debug mode. you cant build on sloppy surface and on other buildings. red means you can not build, green means you can build.

http://depot.acknexturk.com/rtsbuild.rar

**** double posted due to some little server downtime.

I worked on an rts with eastcoast games that had freeform placement, and all we did is place an invisible marker on each corner of the bounding box (for debugging) and did a check to make sure the new object woudnt be in it at all.

thanks for your answers guys
the little demo from quadraxas helped me a lot, so thank you!

Now it works

greets Roxas~