Add collision with objects

[jontan6]

Hello,

Im new to IRRLICHT. I am studying example 7 (collision detection sample), where the program loads a quake 3 level, and added 3 objects (fairies). But I wish to also have collision detection for the fairies.

I tried to addChild fairies to the scene node of the q3 level, but still no collision. Anyone has idea? Thank you very much.

[BlindSide]

I'm afraid you've posted in the wrong forums, this should be in beginners help. Please wait one sec while I wave my magic wand "abra-kadabra!" ... Oh nothing happened... Lets wait for one of the mods to take care of that.

Back to the issue at hand, if you just want basic box collision for the fairies, you might wanna check out the "createTriangleSelectorFromBoundingBox()" and "createMetaTriangleSelector()" methods inside the scene manager. After you've created the triangle selectors for each of the fairies, you add them (And the OctTreeTriangleSelector for the level mesh) to the "IMetaTriangleSelector", and then use the MetaTriangleSelector for the collision response animators, etc.

The IMetaTriangleSelector is basically a group of triangle selectors, used specifically for these kinds of situations.

Good luck.

[jontan6]

Thank you Blindside.

Based on your comment, I created a scene::IMetaTriangleSelector. Then I added the triangle selector of the quake level and fairies using addTriangleSelector. It seems to work now with simple testing. This is correct right? I just need simple collision, I think I am happy with this solution if what I did is valid.

Thanks again for your help, appreciate it.

[Jgoldnight]

The adding of the triangle selectors to the Metatriangleselector is correct, but hopefully you didn't forget to use that metaselector in setting up the CollisionResponseAnimators for each fairy, as was stated.

[d3jake]

I'd hate to hijack this thread, but I have a problem that is similar to his\hers.
If it needs to be split I apologize...

I am using the free flight code from arras. I loaded in a level model that I have and applied the collision as per Example program 7. Trouble is that when I slide the player ship towards the wall, the camera will stop at the wall, but the player model will continue. Which can be seen, kinda like... in this picture:


To remedy this issue do I need to apply a TriangleSelector to the ship mesh and stick it into the MetaSeletor as well? or..?

[cdrwolfe]

Can you not add a bool which tells your movement method to stop when the ship is currently detecting collision?

Regards Wolfe

[d3jake]

Uhh... good idea, though I'm not familiar with how to find when a collision occurs, off to the documentation I go...