Files
OpenSS13/Code/hexadecimal.dm
2008-05-23 17:36:21 +00:00

79 lines
1.5 KiB
Plaintext

/proc/hex2num(hex)
if (!( istext(hex) ))
CRASH("hex2num not given a hexadecimal string argument (user error)")
return
var/num = 0
var/power = 0
var/i = null
i = length(hex)
while(i > 0)
var/char = copytext(hex, i, i + 1)
switch(char)
if("0")
power++
goto Label_290
if("9", "8", "7", "6", "5", "4", "3", "2", "1")
num += text2num(char) * 16 ** power
if("a", "A")
num += 16 ** power * 10
if("b", "B")
num += 16 ** power * 11
if("c", "C")
num += 16 ** power * 12
if("d", "D")
num += 16 ** power * 13
if("e", "E")
num += 16 ** power * 14
if("f", "F")
num += 16 ** power * 15
else
CRASH("hex2num given non-hexadecimal string (user error)")
return
power++
Label_290:
i--
return num
return
/proc/num2hex(num, placeholder)
if (placeholder == null)
placeholder = 2
if (!( isnum(num) ))
CRASH("num2hex not given a numeric argument (user error)")
return
if (!( num ))
return "0"
var/hex = ""
var/i = 0
while(16 ** i < num)
i++
var/power = null
power = i - 1
while(power >= 0)
var/val = round(num / 16 ** power)
num -= val * 16 ** power
switch(val)
if(9.0, 8.0, 7.0, 6.0, 5.0, 4.0, 3.0, 2.0, 1.0, 0.0)
hex += text("[]", val)
if(10.0)
hex += "A"
if(11.0)
hex += "B"
if(12.0)
hex += "C"
if(13.0)
hex += "D"
if(14.0)
hex += "E"
if(15.0)
hex += "F"
else
power--
while(length(hex) < placeholder)
hex = text("0[]", hex)
return hex
return