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-rw-r--r--builtin/common/misc_helpers.lua6
-rw-r--r--doc/client_lua_api.md4
-rw-r--r--doc/lua_api.txt6
3 files changed, 15 insertions, 1 deletions
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
@@ -512,6 +512,12 @@ function core.explode_scrollbar_event(evt)
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
local y = pos.y
diff --git a/doc/client_lua_api.md b/doc/client_lua_api.md
index 43b33ac97..3bd1e3567 100644
--- a/doc/client_lua_api.md
+++ b/doc/client_lua_api.md
@@ -794,6 +794,10 @@ Call these functions only at load time!
* See documentation on `minetest.compress()` for supported compression methods.
* currently supported.
* `...` indicates method-specific arguments. Currently, no methods use this.
+* `minetest.rgba(red, green, blue[, alpha])`: returns a string
+ * Each argument is a 8 Bit unsigned integer
+ * Returns the ColorString from rgb or rgba values
+ * Example: `minetest.rgba(10, 20, 30, 40)`, returns `"#0A141E28"`
* `minetest.encode_base64(string)`: returns string encoded in base64
* Encodes a string in base64.
* `minetest.decode_base64(string)`: returns string
diff --git a/doc/lua_api.txt b/doc/lua_api.txt
index 9bd92b34a..664ad960a 100644
--- a/doc/lua_api.txt
+++ b/doc/lua_api.txt
@@ -580,7 +580,7 @@ Example (colored grass block):
description = "Dirt with Grass",
-- Regular tiles, as usual
-- The dirt tile disables palette coloring
- tiles = {{name = "default_grass.png"},
+ tiles = {{name = "default_grass.png"},
{name = "default_dirt.png", color = "white"}},
-- Overlay tiles: define them in the same style
-- The top and bottom tile does not have overlay
@@ -2958,6 +2958,10 @@ These functions return the leftover itemstack.
* See documentation on `minetest.compress()` for supported compression methods.
* currently supported.
* `...` indicates method-specific arguments. Currently, no methods use this.
+* `minetest.rgba(red, green, blue[, alpha])`: returns a string
+ * Each argument is a 8 Bit unsigned integer
+ * Returns the ColorString from rgb or rgba values
+ * Example: `minetest.rgba(10, 20, 30, 40)`, returns `"#0A141E28"`
* `minetest.encode_base64(string)`: returns string encoded in base64
* Encodes a string in base64.
* `minetest.decode_base64(string)`: returns string