From bc53c82bcf923d11725e3de8565eb4c7e435cd2b Mon Sep 17 00:00:00 2001
From: Gael-de-Sailly <gael.chretien@akeonet.com>
Date: Fri, 27 Feb 2015 20:51:55 +0100
Subject: Add minetest.rgba function that returns ColorString from RGBA or RGB
 values

---
 builtin/common/misc_helpers.lua | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'builtin')

diff --git a/builtin/common/misc_helpers.lua b/builtin/common/misc_helpers.lua
index f9b572d9f..776be29d8 100644
--- a/builtin/common/misc_helpers.lua
+++ b/builtin/common/misc_helpers.lua
@@ -511,6 +511,12 @@ function core.explode_scrollbar_event(evt)
 	return retval
 end
 
+--------------------------------------------------------------------------------
+function core.rgba(r, g, b, a)
+	return a and string.format("#%02X%02X%02X%02X", r, g, b, a) or
+			string.format("#%02X%02X%02X", r, g, b)
+end
+
 --------------------------------------------------------------------------------
 function core.pos_to_string(pos, decimal_places)
 	local x = pos.x
-- 
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