fix minor mesh/triangulation glitch

(loses a dupe brown entry, and light blue and pink, which don't really work
well on a LED display)

README.md

@@ -40,13 +40,13 @@ The panels also respond to these control messages:
 * "off_multi" turns all panels in a lineup off
 * "allon_multi" turns on all LEDs of all panels in a lineup.
 
-A byte value of 0 to 30 will change colors (i.e. string.char(0 to 30) ).  Color values 0 to 11 are:
+A byte value of 0 to 27 will change colors (i.e. string.char(0 to 27) ).  Color values 0 to 11 are:
 
 Red (0), orange, yellow, lime, green, aqua, cyan, sky blue, blue, violet, magenta, or red-violet (11)
 
 Colors 12 to 23 are the same as 0 to 11, but lower brightness.
 
-Colors 23 - 30 are white, light grey, medium grey, dim grey, light blue, brown, and pink.
+Colors 24 - 27 are white, light grey, medium grey, and dim grey.
 
 The left-most/"master" panel will remember the last color used, and defaults to red.
 

init.lua

@@ -61,7 +61,7 @@ local display_string = function(pos, channel, string)
 	local last_color = master_meta:get_int("last_color")
 	local pos2 = pos
 
-	if not last_color or last_color < 0 or last_color > 30 then
+	if not last_color or last_color < 0 or last_color > 27 then
 		last_color = 0
 		master_meta:set_int("last_color", 0)
 	end
@@ -76,7 +76,7 @@ local display_string = function(pos, channel, string)
 			minetest.swap_node(pos2, { name = "led_marquee:char_"..asc, param2 = master_fdir + (last_color*8)})
 			pos2.x = pos2.x + fdir_to_right[fdir+1][1]
 			pos2.z = pos2.z + fdir_to_right[fdir+1][2]
-		elseif asc < 31 then
+		elseif asc < 28 then
 			last_color = asc
 			master_meta:set_int("last_color", asc)
 		end
@@ -87,7 +87,7 @@ local on_digiline_receive_string = function(pos, node, channel, msg)
 	local meta = minetest.get_meta(pos)
 	local setchan = meta:get_string("channel")
 	local last_color = meta:get_int("last_color")
-	if not last_color or last_color < 0 or last_color > 30 then
+	if not last_color or last_color < 0 or last_color > 27 then
 		last_color = 0
 		meta:set_int("last_color", 0)
 	end
@@ -115,7 +115,7 @@ local on_digiline_receive_string = function(pos, node, channel, msg)
 			local asc = string.byte(msg)
 			if asc > 30 and asc < 256 then
 				minetest.swap_node(pos, { name = "led_marquee:char_"..asc, param2 = fdir + (last_color*8)})
-			elseif asc < 31 then
+			elseif asc < 28 then
 				last_color = asc
 				meta:set_int("last_color", asc)
 			elseif msg == "get" then -- get value as ASCII numerical value

models/led_marquee.obj

@@ -25,12 +25,7 @@ v 0.500000 -0.449125 -0.468750
 v -0.500000 -0.449125 -0.468750
 v -0.500000 -0.449125 0.468750
 v 0.500000 -0.449125 0.468750
-vt 0.667843 0.000000
-vt 0.667843 0.015513
-vt 0.681855 0.031026
 vt 0.681855 0.961799
-vt 0.667843 0.977312
-vt 0.667843 0.992824
 vt 0.723891 0.992824
 vt 0.723891 0.000000
 vt 1.000000 0.007175
@@ -39,32 +34,37 @@ vt 0.103234 1.000000
 vt 0.103234 0.007175
 vt 0.723891 0.000000
 vt 0.723891 0.992824
-vt 0.667843 0.992824
-vt 0.667843 0.977312
-vt 0.681855 0.961799
 vt 0.681855 0.031026
+vt 0.003280 0.226388
+vt 0.900045 0.226388
+vt 0.900045 0.164337
+vt 0.003280 0.164337
+vt 0.900045 0.226388
+vt 0.003280 0.226388
+vt 0.003280 0.164337
+vt 0.900045 0.164337
+vt 1.000000 0.017400
+vt 0.000000 -0.000000
+vt 1.000000 -0.000000
+vt 1.000000 1.000000
+vt 0.000000 0.982506
+vt 1.000000 0.982506
+vt 0.000000 0.965011
+vt 0.000000 0.034801
+vt 1.000000 0.034801
+vt 0.667843 0.992824
+vt 0.681855 0.961799
+vt 0.667843 0.977312
 vt 0.667843 0.015513
 vt 0.667843 0.000000
-vt 0.003280 0.226388
-vt 0.900045 0.226388
-vt 0.900045 0.164337
-vt 0.003280 0.164337
-vt 0.900045 0.226388
-vt 0.003280 0.226388
-vt 0.003280 0.164337
-vt 0.900045 0.164337
-vt 1.000000 -0.000000
-vt 1.000000 0.017400
+vt 0.667843 0.000000
+vt 0.681855 0.031026
+vt 0.667843 0.015513
+vt 0.667843 0.977312
+vt 0.667843 0.992824
 vt 0.000000 0.017400
-vt 0.000000 -0.000000
-vt 1.000000 0.982506
-vt 1.000000 1.000000
 vt 0.000000 1.000000
-vt 0.000000 0.982506
-vt 0.000000 0.965011
 vt 1.000000 0.965011
-vt 1.000000 0.034801
-vt 0.000000 0.034801
 vt 0.000000 0.000000
 vt 1.000000 0.000000
 vt 1.000000 1.000000
@@ -73,25 +73,39 @@ vt 0.000000 0.000000
 vt 1.000000 0.000000
 vt 1.000000 1.000000
 vt 0.000000 1.000000
-vn 1.0000 0.0000 -0.0000
-vn 0.0000 -1.0000 0.0000
+vn 1.0000 0.0000 0.0000
+vn 0.0000 -1.0000 -0.0000
 vn -1.0000 0.0000 0.0000
-vn -0.0000 -0.0000 -1.0000
-vn 0.0000 0.0000 1.0000
+vn 0.0000 0.0000 -1.0000
+vn -0.0000 0.0000 1.0000
 vn -0.0000 1.0000 0.0000
 vn -0.0000 0.7071 -0.7071
 vn -0.0000 0.7071 0.7071
 g Cube_Cube_LEDs_Cube_Cube_LEDs_base
 s off
-f 5/1/1 6/2/1 7/3/1 8/4/1 9/5/1 10/6/1 11/7/1 12/8/1
-f 12/9/2 11/10/2 13/11/2 14/12/2
-f 14/13/3 13/14/3 15/15/3 16/16/3 17/17/3 18/18/3 19/19/3 20/20/3
-f 12/21/4 14/22/4 20/23/4 5/24/4
-f 13/25/5 11/26/5 10/27/5 15/28/5
-f 20/29/6 19/30/6 6/31/6 5/32/6
-f 16/33/6 15/34/6 10/35/6 9/36/6
-f 9/36/7 8/37/7 17/38/7 16/33/7
-f 18/39/8 7/40/8 6/31/8 19/30/8
+f 8/1/1 11/2/1 12/3/1
+f 12/4/2 11/5/2 13/6/2 14/7/2
+f 14/8/3 13/9/3 18/10/3
+f 12/11/4 14/12/4 20/13/4 5/14/4
+f 13/15/5 11/16/5 10/17/5 15/18/5
+f 19/19/6 5/20/6 20/21/6
+f 15/22/6 9/23/6 16/24/6
+f 8/25/7 16/24/7 9/23/7
+f 7/26/8 19/19/8 18/27/8
+f 13/9/3 15/28/3 17/29/3
+f 15/28/3 16/30/3 17/29/3
+f 19/31/3 20/32/3 18/10/3
+f 20/32/3 14/8/3 18/10/3
+f 13/9/3 17/29/3 18/10/3
+f 12/3/1 5/33/1 7/34/1
+f 5/33/1 6/35/1 7/34/1
+f 9/36/1 10/37/1 8/1/1
+f 10/37/1 11/2/1 8/1/1
+f 12/3/1 7/34/1 8/1/1
+f 7/26/8 6/38/8 19/19/8
+f 19/19/6 6/38/6 5/20/6
+f 15/22/6 10/39/6 9/23/6
+f 8/25/7 17/40/7 16/24/7
 g Cube_Cube_LEDs_Cube_Cube_LEDs_leds_off
 f 1/41/6 2/42/6 3/43/6 4/44/6
 g Cube_Cube_LEDs_Cube_Cube_LEDs_leds_on