Wavy lines in java?

Newbie & Debugging Questions
#1

I wanted to make some snow flakes falling like in this example:
http://scratch.mit.edu/projects/zombie_penguin/72596

but i wasnt sure what kind of equations the lines would use, or if they even are equations. any ideas?

#2

sin(x)?

#3

Also they seem to move left and right randomly…so…just play around with the Random object? :slight_smile:

#4

What does sin(x) do, do you have any examples? and i dont need them do be random i just want them to go in curved lines

#5

Ah you don’t know trigonometry? Well that’s gonna be a slight problem. :S

#6

nope sorry :frowning:

#7

ok so i figured out what sin(x) does but that makes the waves go horizontal, but i need them to be vertical… any ideas how???

#8

I think you might have some slight problems creating a game if you can’t figure that out yourself… No offence. :persecutioncomplex:

#9

[icode]x = sin(y)[/icode]

And yeah, learn maths.

#10

I know im a real newb with this stuff but could someone make an example? or some pseudo code?

#11

Dude it’s like 2 lines of code, literally
If you can’t solve small problems like this without giant amounts of help from others then you shouldn’t be making games.

#12

Not “shouldn’t make games” but should learn more before starting to make games.

#13

Something as simple as a wavy line? o.O Its not even as complicated as sin(x). You can just generate a random number from -1 to 1 and add that to the position, or something like that. But that wouldn’t be that smooth, so you could use a variation of the “wandering” method. But I think that’s too much for you. o.O

#14

What’s what I was going to say, no-one is incapable of making a game, you just have to learn.

#15

guys im sorry for being a newb but im only in middle school lmao

#16

So am I :smiley:

#17

well i really could use some help… so instead of making fun of my lack of these skills could someone help me out?

#18

Then I suggest you not to jump into game making so quickly. Fully learn Java and code design before jumping into this area. Especially if you don’t know trig :S

However, I shall help this one time:


int value = Math.sin(theta); //keep incrementing theta by any number below Math.PI/4 (play around the numbers for best effect)

The value returned is between -1 and 1. Just add this to the center of the wave path.

#19

Yeah, trig is going to help you with euclidean distance, 3d cameras, direction vectors, noise functions, and practically anything,

#20

Me too :smiley:

I don’t know trigonometry either. If I need it somewhere I have friends who could help.