Help needed regarding Lesson 17

[bplus]

Here it is in Basic coordinate system

Code: (Select All)

'(0, 1) would be 180 degrees.
'(1, 0) would be 270 degrees
'(1, 1) would be 135 degrees.

' assuming from (0, 0) on all these?

'(0,0) is top, left corner of Basic screen

' instead of 1 let's say 100

' (0,100) in blue
Screen 12
Color 9
Line (0, 0)-(0, 100)
Circle (0, 100), 2
Locate 12, 1: Print _R2D(_Atan2(100, 0))

' (100, 0) in yellow
Color 14
Line (0, 0)-(100, 0)
Circle (100, 0), 2
Locate 13, 1: Print _R2D(_Atan2(0, 100))

' (100, 100) in red
Color 12
Line (0, 0)-(100, 100)
Circle (100, 100), 2
Locate 14, 1: Print _R2D(_Atan2(100, 100))