✓ ANSWER ACCEPTED

How to make math.random() go by random intervals of 5?

Asked May 29, 2018316 views2 answers

Can somebody tell me how I can make math.random() select a random number between 20 and 80 that can only end in 0 or 5? Let me explain.

I am creating a baseball game where each player joining has custom stats, including pitch arsenals and windups. Each player also has baseball stats that can be between 20 and 80 but can only end in 5 or 0 (like in Pennant Wars, if you know what I'm talking about). Similarly to HCBB, each team has a custom stadium that would be built by cooperating players.

In conclusion, I just want to know how to manipulate math.random() as mentioned above.

AnonymousMay 29, 2018

2 answers

✓ Accepted answer

Take the difference from the two values you're interpolating from, and divide it by the increment of your choice. This new quotient will be the argument you pass to random(), multiplied by your increment, plus your minimum value. Here's an example:

local stats = {min = 20, max = 80}

function stats:getIncrementBy(n)
	local diff = self.max - self.min
	return self.min + math.random(diff/n)*n
end

print(stats:getIncrementBy(5)) -- > random multiple of 5 between 20 and 80
print(stats:getIncrementBy(5)) -- > random multiple of 5 between 20 and 80
print(stats:getIncrementBy(5)) -- > random multiple of 5 between 20 and 80

Hope this is helped. Let me know if you have any questions!

AnonymousMay 29, 2018Edited May 29, 2018Permalink

local interval = 5
local lowerBoundary = 20
local upperBoundary = 80

function generateRandomNumber()
	local num = math.random(lowerBoundary/interval, upperBoundary/interval)
	num = interval * num
	return num
end

print(generateRandomNumber)

AnonymousMay 29, 2018Edited May 29, 2018Permalink

1 comment

I can wait to test this later, I don't currently have my laptop on me.

AnonymousMay 29, 2018#

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