some questions

in some aimbot codes for CA i see a class or struct type called "D3DXVECTOR3". what is this, and why is it used? why not a regular vector?
also, it is not defined in the source codes! how is it used if it isnt defined?

To put it in the most simplest terms:

D3D Vectors are used to convert the the computer information from a 2D plane into a 3D plane.

Basically, your transforming your 2D images,textures,models,etc... into 3D coordinates.

D3D Vectors are usually used to program the camera in a game.

i think its to name it as it suits to the coder

typedef because c didn't have structs

what changes from an array to a d3dxvector? like:
to