alias Heading

---

(alias) Heading = integer

Integer in range [-32768, 32767] that represents a 2D (xz plane) unit orientation.

                  F(N=2) = H(-32768 / 32767)

                         ^
                         |
                         |
 F(W=3) = H(-16384)  <---o--->  F(E=1) = H(16384)
                         |
                         |
                         v

                  F(S=0) = H(0)

[source]