sorry for asking this question but I couldn't understand it
-- but i don't understand this code
ballDX = math.random(2) == 1 and 100 or -100
--here ballDY will give value between -50 to 50
ballDY = math.random(-50, 50)
I don't understand the structure what is (2) and why it's == 1
Thank you a lot
math.random(x)
will randomly return an integer between 1 and x.
So math.random(2)
will randomly return 1 or 2.
If it returns 1 (== 1
), ballDX
will be set to 100.
If it returns 2 (~= 1
), ballDX
will be set to -100.
A simple way to make a 50-50 chance.