M4 - Vectors

Question 1

What is a Vector

Answer 1

an object that has both MAGNITUDE & DIRECTION

Just an x, y (z) value

Question 2

What does a Vector represent?

Answer 2

absolute position
offset from another point
orientation of something

Question 3

What is the formula of vector subtraction

Answer 3

Direction = EndPoint - StartPoint

D = (Bx-Ax, By-Ay) //Move from A to B

Question 4

How can we move incrementally between two objects?

Answer 4

Interpolation

Question 5

What is interpolation?

Answer 5

Taking 2 data points, plus some ratio, and calculating an “in-between” value.

Question 6

What is a UNIT VECTOR?

Answer 6

A Vector with a magnitude of 1

Question 7

How do we calculate “movement” vectors

Answer 7

Get direction vector (Target - Start)
Normalize that vector to magnitude of 1
Scale that vector by some speed/rate variable

Question 8

What is interpolation, and what 3 pieces of data do we need to perform this calculation?

Answer 8

Start + Distance * Ratio

Question 9

What’s the vector relative to by default?

Answer 9

The origin (0, 0)