Progressive algorithm?

[Sobeman459]

I hope this goes here; anyway i have this bit of code:

chance = rand($game_variables[2] *= 2)

and

if chance >= ($game_variables[2] * 0.25)

Im trying to make it the higher the varible the more times chance is >. Thanks
-Sobe

 

[DeM0nFiRe]

Your math is off. Let's say that game variable is 10 to start.

That means that you can get a number up to 20, and if that number is over 2.5 the condition is met. 20/2.5 = 8 meaning you have a 1/8 chance when the variable is 10. Let's say it is 20 now.

That means you can get a number up to 40, and if that number is over 5 the condition is met. 40/5 = 8 meaning that you have a 1/8 chance when the variable is 20.

If all you are doing is multiplying, you will preserve the ratio every time. Try something exponential or logarithmic instead.

 

[mephisto]

What do you want to do with that formula??...Only curiosity...

 

[Sobeman459]

its a pickpocketing system that is almost done, you get loot if that is met or caught:p

 

[Eduardo]

Why not using  difision like 1/Variable The Higher its get the smaller it will return

 

[Brewmeister]

Demon, I think your math is off too.
Although it's irrelevent, you are right about the constant ratio.

set variable 2 to 10

  chance = rand($game_variables[2] *= 2)

will set variable 2 to 20, and return a random number from 0-19

  if chance >= ($game_variables[2] * 0.25)

since variable 2 is now 20, we are checking against >= 5 (a ratio of 1/4)


Sobeman, what does game_variable 2 represent? a difficulty factor? The users pickpocket skill?
and in either case, what is the range?

 

[DeM0nFiRe]

Lol, whoops you are right I did not see the =. My math wasn't off, just my eyes

Anyway, he should probably be using exponential or logarithmic if he wants the ratio to change.

 

[Sobeman459]

yes its a difficulty factor based on varible 2 which is your skill

 

[Brewmeister]

Demon, no worries.

Sobeman, if you post the range (% for skill level 1,  % for highest skill level), we can help you with the formula

 

[Sobeman459]

idk yet it starts at 0 then idk what it will go up to 100?

 

[Brewmeister]

Here's what I mean....

Lvl           % chance of success
-----       ---------------------
0            0
1            5%
50          75%
100         100%

or something like that

 

[Sobeman459]

ok, ill talk to the other guy helping me and and ill get it worked out and post

 

[Sobeman459]

Ok, sorry it took me so long but here is what i got:

Level:    % Chance
1    45%
30    95%

Is that what you want or all the levels? 30 is the highest level. And i can post the script if needed.

 

[Brewmeister]

It would help to have the % for level 15, or any other level in the middle. Otherwise, I have to assume it's linear.

chance = $game_variables[2].to_f * 1.725 + 43.275
if chance >= rand(100)
# success
end


Be Well