Collision Avoidance using ogre3 on visual 2010
我与ogre3d和visual 2010一起工作，我有两个机器人彼此相邻走路的实现避免碰撞的问题，我想：第一个机器人停下来，athor继续走，然后第一个机器人走。
The most simple way of doing it with Ogre is checking intersection between your Entities' axis aligned bounding boxes.
For example:
Ogre::Entity *robot1(NULL), *robot2(NULL);
Ogre::AnimationState* move_anim(NULL);
Ogre::Real stop_t_s(0.0f);
void app::init() {
robot1 = scene_mgr_->createEntity("robot.mesh");
robot2 = scene_mgr_->createEntity("robot.mesh");
move_anim = robot1->getAnimationState("Walk");
move_anim->setLoop(true);
move_anim->setEnabled(true);
root_->startRendering();
}
void app::frameRenderingQueued(const Ogre::FrameEvent& evt) {
if (move_anim->getEnabled()) {
move_anim->addTime(evt.timeSinceLastFrame);
}
else {
stop_t_s += evt.timeSinceLastFrame;
if (stop_t_s > 2.0f) {
move_anim->setEnabled(true);
stop_t_s = 0.0f;
}
}
if (robot1->getBoundingBox().intersects(robot2->getBoundingBox())) {
move_anim->setEnabled(false);
/* more collide routine */
}
else {
/* normal routine */
}
}
If you want to have more precise collision shapes you should consider using a physics engine to handle it
Update: I've added an example for stopping the "Walk" animation in robot.mesh upon collision and restart it after 2 seconds. For more details on animation control see Ogre Intermediate Tutorial 1
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