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41 lines
905 B
Plaintext
41 lines
905 B
Plaintext
//Inverts an HTML-colour string.
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//I.e. "#FF0000" will become "#00FFFF".
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//This will *ONLY* accept a colour in the
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// form "#XXXXXX". Nothing else will work!
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proc/invertHTML(HTMLstring)
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if(!istext(HTMLstring))
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CRASH("Given non-text argument!")
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return
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else if(length(HTMLstring) != 7)
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CRASH("Given non-HTML argument!")
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return
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var/textr = copytext(HTMLstring, 2,4)
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var/textg = copytext(HTMLstring, 4,6)
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var/textb = copytext(HTMLstring, 6,8)
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var/r = hex2num(textr)
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var/g = hex2num(textg)
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var/b = hex2num(textb)
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textr = num2hex(255-r)
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textg = num2hex(255-g)
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textb = num2hex(255-b)
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if(lentext(textr) < 2)
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textr = "0[textr]"
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if(lentext(textg) < 2)
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textr = "0[textg]"
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if(lentext(textb) < 2)
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textr = "0[textb]"
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return("#[textr][textg][textb]")
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/*
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//Testing code/sample implementation
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mob/verb/test_invertHTML()
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to_chat(usr, "#CC9933")
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to_chat(usr, invertHTML("#CC9933"))
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*/ |