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Rework of colour mixing

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RKF45
2014-01-19 21:47:42 +01:00
parent ca4bb831d4
commit d35c9954b6
1 changed files with 40 additions and 26 deletions
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66
code/modules/reagents/Chemistry-Colours.dm
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@@ -3,51 +3,65 @@
return 0
var/contents = length(reagent_list)
var/list/weight = list(contents)
var/list/color = list(contents)
var/list/weight = new /list(contents)
var/list/redcolor = new /list(contents)
var/list/greencolor = new /list(contents)
var/list/bluecolor = new /list(contents)
var/i
//fill the list of weights
var/listsum = 0
for(i=1; i<contents; i++)
for(i=1; i<=contents; i++)
var/datum/reagent/re = reagent_list[i]
var/reagentweight = re.volume
if(istype(re, /datum/reagent/paint))
reagentweight *= 10 //Paint colours a mixture ten times as much
reagentweight *= 20 //Paint colours a mixture twenty times as much
weight[i] = reagentweight
listsum += reagentweight
//renormalize
for(i=1; i<contents; i++)
weight[i] /= listsum
//fill the list of colours
for(i=1; i<contents; i++)
//fill the lists of colours
for(i=1; i<=contents; i++)
var/datum/reagent/re = reagent_list[i]
var/hue = re.color
if(length(hue) != 7)
color[i] = 0
return
color[i]=hex2num(copytext(color,-6))
return 0
redcolor[i]=hex2num(copytext(hue,2,4))
greencolor[i]=hex2num(copytext(hue,4,6))
bluecolor[i]=hex2num(copytext(hue,6,8))
//mix all the colors
var/red = mixOneColor(weight,redcolor)
var/green = mixOneColor(weight,greencolor)
var/blue = mixOneColor(weight,bluecolor)
//assemble all the pieces
var/finalcolor = "#[red][green][blue]"
return finalcolor
/proc/mixOneColor(var/list/weight, var/list/color)
if (!weight || !color || length(weight)!=length(color))
return 0
var/contents = length(weight)
var/i
//normalize weights
var/listsum = 0
for(i=1; i<=contents; i++)
listsum += weight[i]
for(i=1; i<=contents; i++)
weight[i] /= listsum
//mix them
var/mixedcolor
for(i=1; i<contents; i++)
var/mixedcolor = 0
for(i=1; i<=contents; i++)
mixedcolor += weight[i]*color[i]
mixedcolor = round(mixedcolor)
//until someone writes a formal proof for this algorithm, let's keep this in
if(mixedcolor<0x0000 || mixedcolor>0xFFFF)
return
if(mixedcolor<0x00 || mixedcolor>0xFF)
return 0
//assemble back into #RRGGBB format
var/finalcolor = num2hex(mixedcolor)
var/colorlength = length(finalcolor)
finalcolor = copytext(finalcolor,-colorlength+1) //We don't want every colour to start with "0"
while(length(finalcolor)<6)
while(length(finalcolor)<2)
finalcolor = text("0[]",finalcolor) //Takes care of leading zeroes
finalcolor = text("#[]",finalcolor)
world << finalcolor
return finalcolor