[Trigger] Round down system

[Avator]

I want to make a system that rounds down a number to a full number. I got these statistical Integer values and want to calculate a stat with it. For example: 'Magic Defense = 20 + (0.3 * (Level of Unit))'. At for example level 12, you'd have 'Magic Defense = 20 + (0.3 * 12) = 23.6'. In this case, I want Magic Defense to be 23. Even at e.g. level 13 (resulting in 23.9), I want it to come out as 23. Is there any way to set the digits behind the comma to 00, or another way to round down this?


EDIT: Just got a solution through chat.

 

[Eleandor]

Use the function: convert real to integer...

 

[Avator]

That was the solution I got on the chat. But now I think of it: Does that round to the nearest (so 23.6 becomes 24) or does it always round down?

 

[Eleandor]

Always round down.
Round to the nearest by doing:

Integer(real+0.5)

 

[Avator]

Ok, thanks

 

[Day-Elven]

Yea, when you use arifmetic with integers, it's like 99/100 = 0; 100/100 = 1, 3/2 = 1 and so on.
So always use reals in counting, they have 3 numbers after comma.

 

[Eleandor]

Doesn't warcraft 3 use floating points?

 

[Avator]

Floating points?

 

[Element of Water]

Isn't a real value basically a floating point?

 

[GhostWolf]

Doesn't warcraft 3 use floating points?

With INTEGERS? that makes no sense whatsoever.

Isn't a real value basically a floating point?

Reals are most likely typedefs of floats.

 

[Eleandor]

With INTEGERS? that makes no sense whatsoever.

Think before you post... Especially if you realise that it doesn't make sense.
If I'm talking about floating points, I'm obviously talking about warcraft 3 REALS, not INTEGERS. Especially when I'm replying to someone who's saying

So always use reals in counting, they have 3 numbers after comma.

He makes it sound like warcraft reals are implemented as fixed point reals, instead of floating point reals...

 

[GhostWolf]

Think before you post... Especially if you realise that it doesn't make sense.

You my good sir, got me there. /me bows.

 

[The Reborn Devil]

You could convert the real to string and then remove everything after the dot and then convert the string to integer.

 

[Avator]

If Real's work, it would be a lot faster ^^
But in case something goes wrong, that is a nice back-up plan.

 

[GhostWolf]

Yea, because converting it straight to an integer doesn't do exactly the same thing, just in a more efficient way.

 

[Lord_BoNes]

Just do:

local integer rounded_down = R2I(number_to_round)
if (rounded_down > number_to_round) then
    set rounded_down = rounded_down - 1
endif

That'd be a certain way of making sure that they round down...

 

[Avator]

First of all: I'm 100% GUI except for leaks. If I ever need JASS because it's a requirement for my map and there's no way to do it in GUI, I ask a JASSer.

Second of all: If I'd have to put that in my trigger for 8 main playable characters and 3 temporary characters, doing that for 9 attributes each, I'd have to do that 99 times! I'd rather do it with just 1 GUI line. It's a bit faster ^^

 

[Lord_BoNes]

I was only suggesting... But, I can see your point...

BoNes hangs his head, and slumps back into his corner

 

[Avator]

It's never wrong to suggest something unless it's offending or against the rules or policies, which this wasn't

So you may stop hanging yourself now.

 

[Eleandor]

Guys, it's been solved already. R2I always rounds down, and so does its GUI equivalent "convert real to integer".

 

[xD.Schurke]

Eleandor already posted the solution R2I(real+0.5)