So far my contributions for this community had been rather miserable, so I decided it's time to make up for it by posting piece of code from my own test application. Maybe it's not as decent as I would like it to be, but I nonetheless decided to share it with you. It's a method for moving an entity through the scenery, setting appropiate animation loop and detecting whether it collides with the scenery or not. The method itself goes like this:
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void Character::Walk(float speed, ISceneCollisionManager* colmanger, ITriangleSelector* selector)
{
core::vector3df OriginalPosition;
core::vector3df TranslationVector;
core::triangle3df triout;
bool isfalling = true; //set it to "false" if you want the gravity off
OriginalPosition=this->position;
TranslationVector.X=((float)(cos(this->heading*PI/180))*speed);
TranslationVector.Z=-((float)(sin(this->heading*PI/180))*speed);
this->position = colmanger->getCollisionResultPosition(selector, OriginalPosition, vector3df(10,50,10), TranslationVector, triout, isfalling, 10);
this->model->setPosition(position);
if (this->state!=STATE_WALK)
{
this->state=STATE_WALK;
this->model->setMD2Animation("run");
this->model->setLoopMode(true);
}
}
"This" refers to character type object. "State" is an integer value that indicates in what state the entity is at the moment. For now I've only defined two states, namely STATE_WALK the character is in when walking and STATE_STAND the character type object is in when it's not moving. "Model" is an Irrlicht scene node representing the entity. For stopping characters' movement, I'm using this method:
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void Character::Stop()
{
this->state=STATE_STAND;
this->model->setMD2Animation("stand");
}
I hope this post will be of some help to newcomers who want to create their own Irrlicht-based 3-person type game without resorting to external libraries (like Newton) but don't know where to start.