way facing vector

[raptorstrike]

ok i want to be able to shoot out a bullet and have the velocity set to go the dirrection i have shot how do i acheve this in irrlicht?

[arras]

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irr::core::vector3df r = irr::core::vector3df(0,0,velocity);

irr::core::matrix4 m;
m.setRotationDegrees( node->getRotation() );

m.transformVect(r);

node->setPosition( node->getPosition() + r );

where node is your bullet node.

[raptorstrike]

ok this moves the object in a set direction i want the direction that the object travles to be dynamic (changing all the time)

[arras]

then you need to define modification value lets name it acceleration:

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irr::core::vector3df acceleration = irr::core::vector3df(0,0,0.5f);

irr::core::vector3df velocity = irr::core::vector3df(0,0,0);

then in your main loop you change velocity each frame:

Code: Select all

velocity = velocity + acceleration;

then you use code above to move object