canvas HB bar script problems...

[savvy]

the following script makes a function called hpbar, and it goes: hpbar(hp, R, G, B);
my issues is that it only fills about 4/5ths of the canvas, the rest is left blank... shouldnt (width/hp)*health; work?
because surely if width was 200, then you has (200/100)*100 it would make it back to 200?
any solutions result in +1 and my thanks

Code: Select all

void hpbar(int hp, int R, int G, int B)
{
    int w;
    int i,j;
    if(hp<1)hp=1;
    if(health<1)health=1;
    w = (width/hp)*health;
    erase(0,0,0,1);
    for(i=0;i<w;i++)
    {
        for(j=0;j<height;j++)
        {
        setpen(R,G,B,.5,1);
        putpixel(i,j);
        }
    }
}

savvy

[schnellboot]

try

Code: Select all

w = width*health/hp;

instead of

Code: Select all

w = (width/hp)*health;

[savvy]

works thanks a bunch, +1!

[schnellboot]

no problem and thanks

[Game A Gogo]

Welcome to the world of numeric conversion!

if you got a value: Value1 that ranges from 0 to 50 and you want to transform this value to something that ranges from 0 to 10

some guy would go "Uh, divide by five!" but where is the reasoning behind that?
So here's some reasoning!

You need to transform Value1 to a universal unit, that would range from 0 to 1 (Simple enough? if you're smart, you'll realize this is percentage ) so you'd take the maximum value Value1 can take, which is 50 use that number to divide Value1: Value1/50

Now it's universal, you need to transform it to a value from 0 to 10. so multiply it by the maximum number of your new range, 10 in this case.

so: (Value1/50)*10
Now if you simplify this code (You learn this at school) it will end up being Value1/5
There goes the reasoning behind "Uh, divide by five!"

This is a really important concept in programming, that's why I went ahead and explain it clearly

[savvy]

thanks a bunch for that explanation
i haz given 2 +1s in the same post now XD

[Hblade]

Try this for the i thing

Code: Select all

for (i=0;i<HP_VARIABLE_HERE;i++) {
setpen(50+i, 25, 25, 0, 1);
moveto(i, 0);
lineto(i, height);
}


What this will do is make a gradient that goes from the begining to your HP limit. no need for 2 for statements Anywho, this will reach all the way to the canvas' height as well so make sure you don't have a super thick canvas xD