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Mouse support

Started by johnnypark May 24, 2003 at 4:17 PM 2 replies 300+ views

Original Post

May 24, 2003 at 4:17 PM

I am a novice programmer and I have been working on a few simple projects with NeHe''s basecode. I have found the tutorials here very informative, however there is one area that I havent been able to find any usefull info on : setting up and utilizing the mouse cursor. What I am hoping to do is set it up so I can Click on 2d and 3d objects in the window and have stuff happen. If anyone could give me some pointers or point me to a site that has such info, It would be muchly appreciated. Johnny

dede

May 24, 2003 at 5:16 PM

Nehe has a selection tutorial,Tutorial number 32, that allows you to tell if a 3d object is under your mouse

The other way is to look up gluProject() and gluUnProject(). These functions take your 2d point, and place it in a 3d model space, where then you can figure out where you''re object is...

Then you can use simple sphere <-> sphere collision to tell if your mouse is close to the point you''d like to manipulate....

walshb

May 24, 2003 at 6:22 PM

Since you're just starting out I would recommend looking at the GLut. They have functions for mouse intereaction that are pretty simple.

Here's a link for the latest library:
Here

and here's where to find the spec:
Here

Have fun!

-B

[edited by - walshb on May 24, 2003 7:23:05 PM]

johnnypark

Author

johnnypark

May 24, 2003 at 7:47 PM

wow, I hadn''t looked at tut 32 yet, lots of stuff here! Cool game too

Thanks for the replies

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