colormates

2020-12-11 04:54:30 -07:00
parent 6cc917bc07
commit 76e7caad33
2 changed files with 223 additions and 0 deletions
@@ -1235,3 +1235,18 @@ GLOBAL_DATUM_INIT(dummySave, /savefile, new("tmp/dummySave.sav")) //Cache of ico
 	var/icon/I = getFlatIcon(thing)
 	return icon2html(I, target, sourceonly = sourceonly)

+/* Gives the result RGB of a RGB string after a matrix transformation. No alpha.
+ * Input: rr, rg, rb, gr, gg, gb, br, bg, bb, cr, cg, cb
+ * Output: RGB string
+ */
+/proc/RGBMatrixTransform(list/color, list/cm)
+	ASSERT(cm.len >= 9)
+	if(cm.len < 12)		// fill in the rest
+		for(var/i in 1 to (12 - cm.len))
+			cm += 0
+	if(!islist(color))
+		color = ReadRGB(color)
+	color[1] = color[1] * cm[1] + color[2] * cm[2] + color[3] * cm[3] + cm[10]
+	color[2] = color[1] * cm[4] + color[2] * cm[5] + color[3] * cm[6] + cm[11]
+	color[3] = color[1] * cm[7] + color[2] * cm[8] + color[3] * cm[9] + cm[12]
+	return rgb(arglist(color))