Attempt to compare boolean with number?
So I'm trying to make a script that when the Miles Driven [in leaderstats] is changed it fires a remote event to another script to check its value. If the value exceeds a limit it Ranks the player up. Everything seem to be working fine except the value in the if statement. It gives an error in the output: Attempt to compare boolean with number.
Here's the code:
01 | local Event = game:GetService("ReplicatedStorage").RankUpServer |
02 |
03 | Event.OnServerEvent:Connect(function(player) |
04 | print('Event connected') |
05 | if player.leaderstats["Miles Driven"].Value >0<1 then |
06 | player.leaderstats.Rank = "Permit" |
07 | elseif player.leaderstats["Miles Driven"].Value >1<10 then |
08 | player.leaderstats.Rank = "Novice" |
09 |
10 | elseif player.leaderstats["Miles Driven"].Value >9<25 then |
11 | player.leaderstats.Rank = "Intermediate" |
12 |
13 | elseif player.leaderstats["Miles Driven"].Value >24<50 then |
14 | player.leaderstats.Rank = "Advanced" |
15 |
Also the reason >49<51 looks like that I can't just do == 50 because it's suppose do be mile driven in a drag strip and it's 1/4 mile, so when the player races Miles driven get 0.4 added to it so I can't go with ==.
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2 answers
Relational Operators
The Reason for this is how relational operators work in lua, and in programming in general is that comparing two numbers with a relational operator returns a boolean, which is a true or a false
The particular reason why your code is erroring is the order in which the code is ran, which for relational operators is from left to right.
so, if i used your line 5 as an example:
if player.leaderstats["Miles Driven"].Value >0<1 then
the order at which it would run could be deduced mathmatically
(MilesDriven > 0)<1
true < 1
Therein lies the error
And Operator
The way we can prevent this would be to use an and operator in your code, which is primarily used to compare two booleans.
So, if we use that to fix you code like such:
Miles.Value >0 and Miles.Value<1
true and true
true
Application
With that said, here is the fixed code:
01 | local Event = game:GetService("ReplicatedStorage").RankUpServer |
02 | local Miles = player.leaderstats["Miles Driven"] |
03 |
04 | Event.OnServerEvent:Connect(function(player) |
05 | print('Event connected') |
06 | if Miles.Value >0 and Miles.Value<1 then |
07 | player.leaderstats.Rank = "Permit" |
08 | elseif Miles.Value >=1 and Miles.Value<10 then |
09 | player.leaderstats.Rank = "Novice" |
10 |
11 | elseif Miles.Value >=10 and Miles.Value<25 then |
12 | player.leaderstats.Rank = "Intermediate" |
13 |
14 | elseif Miles.Value >=25 and Miles.Value<50 then |
15 | player.leaderstats.Rank = "Advanced" |
I would also recommend using variables for the Miles and Rank stats
Hopefully this helped!
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You cannot use the < > twice on the same variable at once. This is because the first time you define it, the function returns a bool (true or false, not a number) for the < > property, then checks it again against the next number.
You need to check the value twice in each line for this to work correctly
Also, rank is presumably a string value, so you will need to write .Value after each one or it will not run properly.
Revised Server Script
01 | local Event = game:GetService("ReplicatedStorage"):WaitForChild("RankUpServer") |
02 |
03 | Event.OnServerEvent:Connect(function(player) |
04 | print("Event Connected") |
05 | local val = player:WaitForChild("leaderstats"):WaitForChild("Miles Driven").Value |
06 | local rank = player:WaitForChild("leaderstats"):WaitForChild("Rank") |
07 | if val > 0 and val < 1 then |
08 | rank.Value = "Permit" |
09 | elseif val >= 1 and val < 10 then |
10 | rank.Value = "Novice" |
11 | elseif val >= 10 and val < 25 then |
12 | rank.Value = "Intermediate" |
13 | elseif val >= 25 and val < 50 then |
14 | rank.Value = "Advanced" |
15 | elseif val >= 50 and val < 51 then |
16 | rank.Value = "Semi Pro" |
17 | elseif val >= 51 then |
18 | rank.Value = "Pro" |
19 | end |
20 | end) |
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