Rounding off.

[FlawlessHappiness]

Hello.

I searched about rounding off.

If I have decimal, say 2.4, I want to round it down to 2.
If it's 2.7 it should also be rounded down to 2.

I found this thread: https://www.frictionalgames.com/forum/th...ight=round
But did not understand the answer.

Can you explain to me how it works?

[Romulator]

Well, rounding down is known as "floor" in most codes.
In the Math Functions page on the wiki, you can find this riiiiight down the bottom, which with a few clicks, is a copy+paste from the links you were looking at.

PHP Code: (Select All)

int floor(float &in x) { return int(x); } 


Only problem is, I got no idea how to use it

[Mudbill]

My guess would be for such a function to work like so:

You input the floor(2.7f) into where you need it to be rounded, and it will return 2. For example:

PHP Code: (Select All)

int iHealthRounded = floor(50.5f); //or whatever number you want to round.
float fHealth = iHealthRounded;

SetPlayerHealth(fHealth); 


As you probably know, integers can't contain decimals, whereas floats can. It looks like this script simply converts the float (decimal) value to an integer, which kills off the decimal. I'm unsure if this conversion will automatically assume the closest full number or just ignore the decimal though.

Don't forget to have that line Rom posted somewhere in your file.

[FlawlessHappiness]

What, so the code

PHP Code: (Select All)

int floor(float &in x) { return int(x); } 


Actually needs to be in my file, but with nothing editted into it?

[Mudbill]

Pretty much. It doesn't even need to be named floor. Can be anything. Look at this:

PHP Code: (Select All)

void Callback()
{
    int iHealthRounded = ConvertFloatToInt(50.5f);
    float fHealth = iHealthRounded;

    SetPlayerHealth(fHealth); 
}

int ConvertFloatToInt(float &in x)
{
    return int(x);
} 


[FlawlessHappiness]

If this works, my damage multiplier will be awesome!

[MrBehemoth]

Can't you just use something like

Code: (Select All)

iHealthRounded = int(50.5f);

?

[Daemian]

Just go like this:

PHP Code: (Select All)

int AttackType = ( 2.4 ); 


AttackType=2

(.4 gets eaten, 2 survives the conversion)

You can also do:

PHP Code: (Select All)

    float CATS = 2.5;
    AddDebugMessage( "I have " + int(CATS) + " cats", false ); 


I have 2 cats

---

What Behe said.

[MrBehemoth]

Yup. Also, protip: if you want to round of to the nearest whole number, use

Code: (Select All)

MyRoundedInt = int(MyFloat + 0.5f);

Or if you want to round to a given number of decimal places:

Code: (Select All)

NearestHundred = int((MyFloat + 0.5f) / 100) * 100;
NearestHundredth = float(int((MyFloat + 0.5f) * 100)) / 100;

[FlawlessHappiness]

Ok, so this is interesting.

This is how my script looks.

Base damage

PHP Code: (Select All)

if(GetGlobalVarString("Move") == "Dust")
    {
        SetLocalVarInt("BaseDamage", RandInt(1,2));
    } 


Damage calculation

PHP Code: (Select All)

if(GetGlobalVarInt("FriendlyMonsterLevel") != GetLocalVarInt("EnemyMonsterLevel"))
        {
            SetLocalVarInt("levelDifference", GetGlobalVarInt("FriendlyMonsterLevel")-GetLocalVarInt("EnemyMonsterLevel"));
            
            SetLocalVarFloat("damageMult", (GetLocalVarInt("levelDifference")/3)*0.5);
        }
        else
        {
            SetLocalVarFloat("damageMult", 0);
        }

        SetLocalVarFloat("Damage", GetLocalVarInt("BaseDamage")+GetLocalVarFloat("DamageMult"));
        if(GetLocalVarFloat("Damage") <= 0)
        {
            //SetLocalVarFloat("Damage", 0);
        }
        AddDebugMessage("DAMAGE BEFORE = "+GetLocalVarFloat("damage"), false);
        AddLocalVarInt("FriendlyMonsterHealth", -Floor(GetLocalVarFloat("damage")));
        AddDebugMessage("DAMAGE = "+GetLocalVarFloat("damage"), false); 


For some reason end damage = 0
It really shouldn't


EDIT: NEVERMIND! I got it to work.