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Irrlicht - FPSish weapon placement

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Hi everyone! I'm messing arond a bit with Irrlicht, trying to load in a mesh (a gun) and placing it in front of a user controlled camera, first person shooter style. So far, I've managed place the weapon at the camera coordinates, and making it follow the camera when looking around. This of course makes the player walking around "inside" the weapon, so it need to be moved slightly in front of the camera. This is what I've done:
vector3df CameraPosition = camera->getPosition();
vector3df CameraRotation = camera->getRotation();

vector3df GunPosition = CameraPosition;
vector3df GunRotation = CameraRotation;

vector3df Direction = CameraRotation.normalize();
Direction *= 0.2f; // offset to be figured out

vector3df GunRenderPosition = GunPosition + Direction;


First of all, am I in the ballpark here? When offset is around 0.2f, the weapon seems to follow correctly, it just needs to be tweaked, but when I increase the offset too much, the weapon ends up above me and stuff. Thank you in advance. - Daniel EDIT: code [Edited by - danieliskogen on October 21, 2008 4:11:50 PM]

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You will find ISceneNode::setParent() very helpful.

Here's how i did it, the offsets will vary.

#define ROCKETLAUNCHER_POSITION_OFFSET vector3df( -1.5f, 3.5f, -2.5f )
#define ROCKETLAUNCHER_ROTATION_OFFSET vector3df( 0.0f, -90.0f, -4.0f )

void RocketLauncher::AttachTo( MainPlayer& Player )

LauncherModel.SetParent( Player.GetCamera().GetSceneNode() );

LauncherModel.GetSceneNode()->setMaterialFlag( EMF_LIGHTING, false );

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