Random Number Question

[scottige]

This is probably a silly question and something obvious I'm missing but here's my issue.

I have various pads on my game that an enemy moves over.
When it hits it it changes direction.

I assign a number to an alt value Random(3)+1 to get a random number between 1 and 4

One of the pads is 4 way so that's not an issue with the above method.

My problem is, I need to find a fairly easy method to pick certain numbers.

For example one of the pads in a corner is down and left only.
For this I would only want to set the alt value to 3 or 4.

A more difficult 1 would be a left or right pad.
I would need to set the alt value to 1 or 3.

I have a long winded version with a lot of events that basically keeps re rolling if it lands on a number I don't want.

I was just wondering if there was an easier way?

[Popcorn]

Actually Random(3) + 1 gives either 1,2 or 3. Random(4) + 1 is what you want

* Enemy collides with PadDownLeft
- Set value to 3 + Random(2)
[color:#009900]This will set the value to 3 or 4.[/color]

* Enemy collides with PadLeftRight
- Set value to 1 + (2 * Random(2))
[color:#009900]This will set the value to 1 or 3.
The alternative results are:
a: 1 + (2 * 0) = 1
b: 1 + (2 * 1) = 3 [/color]

[scottige]

Ah great!

Thanks.

I should be able to tweak that for all the pads.

[scottige]

Sorry, trying to get to grips with these random numbers .

Would 1+(3*Random(2)) give me 1 or 4?

[Popcorn]

Why don't you test it yourself?

Here is the possible results:

a: 1 + (3 * 0) = 1
b: 1 + (3 * 1) = 4

So yes, it will be either 1 or 4.