moving the camera position in 90°increments

[ali lolo]

How can i write a program for moving the camera position in 90°increments ?

[Bruce Sherwood]

See the extensive documentation at 

     http://www.glowscript.org/docs/VPythonDocs/canvas.html

Basically, you simply want to change scene.forward.

Bruce

[ali lolo]

And how can i work with vector variables in v python?

for example i can use a[n] for a list to change or get that index of array and how is it in V python?

[Bruce Sherwood]

Study the tutorial: http://www.glowscript.org/docs/VPythonDocs/VPython_Intro.pdf

View the videos at http://www.glowscript.org/docs/VPythonDocs/index.html

a = vec(1,2,3)

b = vec(4,5,6)

print(a+b) # <5,7,9>

print(a.x, a.y, a.z) # 1, 2, 3

See the documentation: http://www.glowscript.org/docs/VPythonDocs/vector.html

Study the many examples available at glowscript.org by clicking "Example programs"