From 9d9e9b67090423ef8447b93af9109b87dc430d27 Mon Sep 17 00:00:00 2001
From: paramat <paramat@users.noreply.github.com>
Date: Thu, 2 Nov 2017 04:30:19 +0000
Subject: [PATCH] Stairs: Set world-aligned textures for all stairs and slabs

Fix 'stair_images' code to avoid 'stair_images' being empty in some
situations.
Change stairs back to nodeboxes to make world-aligned textures work.
---
 mods/stairs/README.txt                    |   9 --
 mods/stairs/init.lua                      | 101 ++++++++------
 mods/stairs/license.txt                   |  42 +-----
 mods/stairs/models/stairs_stair.obj       | 115 ----------------
 mods/stairs/models/stairs_stair_inner.obj | 161 ----------------------
 mods/stairs/models/stairs_stair_outer.obj | 136 ------------------
 6 files changed, 59 insertions(+), 505 deletions(-)
 delete mode 100644 mods/stairs/models/stairs_stair.obj
 delete mode 100644 mods/stairs/models/stairs_stair_inner.obj
 delete mode 100644 mods/stairs/models/stairs_stair_outer.obj

diff --git a/mods/stairs/README.txt b/mods/stairs/README.txt
index f2b5b74f..e411c332 100644
--- a/mods/stairs/README.txt
+++ b/mods/stairs/README.txt
@@ -7,12 +7,3 @@ Authors of source code
 Originally by Kahrl <kahrl@gmx.net> (LGPL 2.1) and
 celeron55, Perttu Ahola <celeron55@gmail.com> (LGPL 2.1)
 Various Minetest developers and contributors (LGPL 2.1)
-
-Authors of media (models)
--------------------------
-Jean-Patrick G. (kilbith) <jeanpatrick.guerrero@gmail.com> (CC BY-SA 3.0):
-  stairs_stair.obj
-GreenXenith (CC BY-SA 3.0)
-  stairs_stair_inner.obj stairs_stair_outer.obj
-
-
diff --git a/mods/stairs/init.lua b/mods/stairs/init.lua
index 2fdd54b0..8b3ceed0 100644
--- a/mods/stairs/init.lua
+++ b/mods/stairs/init.lua
@@ -46,41 +46,40 @@ end
 -- Node will be called stairs:stair_<subname>
 
 function stairs.register_stair(subname, recipeitem, groups, images, description, sounds)
+	-- Set backface culling and world-aligned textures
 	local stair_images = {}
 	for i, image in ipairs(images) do
 		if type(image) == "string" then
 			stair_images[i] = {
 				name = image,
 				backface_culling = true,
+				align_style = "world",
 			}
-		elseif image.backface_culling == nil then -- override using any other value
+		else
 			stair_images[i] = table.copy(image)
-			stair_images[i].backface_culling = true
+			if stair_images[i].backface_culling == nil then
+				stair_images[i].backface_culling = true
+			end
+			if stair_images[i].align_style == nil then
+				stair_images[i].align_style = "world"
+			end
 		end
 	end
 	groups.stair = 1
 	minetest.register_node(":stairs:stair_" .. subname, {
 		description = description,
-		drawtype = "mesh",
-		mesh = "stairs_stair.obj",
+		drawtype = "nodebox",
 		tiles = stair_images,
 		paramtype = "light",
 		paramtype2 = "facedir",
 		is_ground_content = false,
 		groups = groups,
 		sounds = sounds,
-		selection_box = {
+		node_box = {
 			type = "fixed",
 			fixed = {
-				{-0.5, -0.5, -0.5, 0.5, 0, 0.5},
-				{-0.5, 0, 0, 0.5, 0.5, 0.5},
-			},
-		},
-		collision_box = {
-			type = "fixed",
-			fixed = {
-				{-0.5, -0.5, -0.5, 0.5, 0, 0.5},
-				{-0.5, 0, 0, 0.5, 0.5, 0.5},
+				{-0.5, -0.5, -0.5, 0.5, 0.0, 0.5},
+				{-0.5, 0.0, 0.0, 0.5, 0.5, 0.5},
 			},
 		},
 		on_place = function(itemstack, placer, pointed_thing)
@@ -144,11 +143,26 @@ local slab_trans_dir = {[0] = 8, 0, 2, 1, 3, 4}
 -- Node will be called stairs:slab_<subname>
 
 function stairs.register_slab(subname, recipeitem, groups, images, description, sounds)
+	-- Set world-aligned textures
+	local slab_images = {}
+	for i, image in ipairs(images) do
+		if type(image) == "string" then
+			slab_images[i] = {
+				name = image,
+				align_style = "world",
+			}
+		else
+			slab_images[i] = table.copy(image)
+			if image.align_style == nil then
+				slab_images[i].align_style = "world"
+			end
+		end
+	end
 	groups.slab = 1
 	minetest.register_node(":stairs:slab_" .. subname, {
 		description = description,
 		drawtype = "nodebox",
-		tiles = images,
+		tiles = slab_images,
 		paramtype = "light",
 		paramtype2 = "facedir",
 		is_ground_content = false,
@@ -280,43 +294,41 @@ end
 -- Node will be called stairs:stair_inner_<subname>
 
 function stairs.register_stair_inner(subname, recipeitem, groups, images, description, sounds)
+	-- Set backface culling and world-aligned textures
 	local stair_images = {}
 	for i, image in ipairs(images) do
 		if type(image) == "string" then
 			stair_images[i] = {
 				name = image,
 				backface_culling = true,
+				align_style = "world",
 			}
-		elseif image.backface_culling == nil then -- override using any other value
+		else
 			stair_images[i] = table.copy(image)
-			stair_images[i].backface_culling = true
+			if stair_images[i].backface_culling == nil then
+				stair_images[i].backface_culling = true
+			end
+			if stair_images[i].align_style == nil then
+				stair_images[i].align_style = "world"
+			end
 		end
 	end
 	groups.stair = 1
 	minetest.register_node(":stairs:stair_inner_" .. subname, {
 		description = description .. " Inner",
-		drawtype = "mesh",
-		mesh = "stairs_stair_inner.obj",
+		drawtype = "nodebox",
 		tiles = stair_images,
 		paramtype = "light",
 		paramtype2 = "facedir",
 		is_ground_content = false,
 		groups = groups,
 		sounds = sounds,
-		selection_box = {
+		node_box = {
 			type = "fixed",
 			fixed = {
-				{-0.5, -0.5, -0.5, 0.5, 0, 0.5},
-				{-0.5, 0, 0, 0.5, 0.5, 0.5},
-				{-0.5, 0, -0.5, 0, 0.5, 0},
-			},
-		},
-		collision_box = {
-			type = "fixed",
-			fixed = {
-				{-0.5, -0.5, -0.5, 0.5, 0, 0.5},
-				{-0.5, 0, 0, 0.5, 0.5, 0.5},
-				{-0.5, 0, -0.5, 0, 0.5, 0},
+				{-0.5, -0.5, -0.5, 0.5, 0.0, 0.5},
+				{-0.5, 0.0, 0.0, 0.5, 0.5, 0.5},
+				{-0.5, 0.0, -0.5, 0.0, 0.5, 0.0},
 			},
 		},
 		on_place = function(itemstack, placer, pointed_thing)
@@ -358,41 +370,40 @@ end
 -- Node will be called stairs:stair_outer_<subname>
 
 function stairs.register_stair_outer(subname, recipeitem, groups, images, description, sounds)
+	-- Set backface culling and world-aligned textures
 	local stair_images = {}
 	for i, image in ipairs(images) do
 		if type(image) == "string" then
 			stair_images[i] = {
 				name = image,
 				backface_culling = true,
+				align_style = "world",
 			}
-		elseif image.backface_culling == nil then -- override using any other value
+		else
 			stair_images[i] = table.copy(image)
-			stair_images[i].backface_culling = true
+			if stair_images[i].backface_culling == nil then
+				stair_images[i].backface_culling = true
+			end
+			if stair_images[i].align_style == nil then
+				stair_images[i].align_style = "world"
+			end
 		end
 	end
 	groups.stair = 1
 	minetest.register_node(":stairs:stair_outer_" .. subname, {
 		description = description .. " Outer",
-		drawtype = "mesh",
-		mesh = "stairs_stair_outer.obj",
+		drawtype = "nodebox",
 		tiles = stair_images,
 		paramtype = "light",
 		paramtype2 = "facedir",
 		is_ground_content = false,
 		groups = groups,
 		sounds = sounds,
-		selection_box = {
+		node_box = {
 			type = "fixed",
 			fixed = {
-				{-0.5, -0.5, -0.5, 0.5, 0, 0.5},
-				{-0.5, 0, 0, 0, 0.5, 0.5},
-			},
-		},
-		collision_box = {
-			type = "fixed",
-			fixed = {
-				{-0.5, -0.5, -0.5, 0.5, 0, 0.5},
-				{-0.5, 0, 0, 0, 0.5, 0.5},
+				{-0.5, -0.5, -0.5, 0.5, 0.0, 0.5},
+				{-0.5, 0.0, 0.0, 0.0, 0.5, 0.5},
 			},
 		},
 		on_place = function(itemstack, placer, pointed_thing)
diff --git a/mods/stairs/license.txt b/mods/stairs/license.txt
index 411823ae..57bd98cf 100644
--- a/mods/stairs/license.txt
+++ b/mods/stairs/license.txt
@@ -2,9 +2,9 @@ License of source code
 ----------------------
 
 GNU Lesser General Public License, version 2.1
-Copyright (C) 2011-2016 Kahrl <kahrl@gmx.net>
-Copyright (C) 2011-2016 celeron55, Perttu Ahola <celeron55@gmail.com>
-Copyright (C) 2012-2016 Various Minetest developers and contributors
+Copyright (C) 2011-2017 Kahrl <kahrl@gmx.net>
+Copyright (C) 2011-2017 celeron55, Perttu Ahola <celeron55@gmail.com>
+Copyright (C) 2012-2017 Various Minetest developers and contributors
 
 This program is free software; you can redistribute it and/or modify it under the terms
 of the GNU Lesser General Public License as published by the Free Software Foundation;
@@ -14,39 +14,3 @@ This program is distributed in the hope that it will be useful, but WITHOUT ANY
 without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 See the GNU Lesser General Public License for more details:
 https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
-
-
-Licenses of media (models)
---------------------------
-
-Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0)
-Copyright (C) 2015-2016 Jean-Patrick G. (kilbith) <jeanpatrick.guerrero@gmail.com>
-Copyright (C) 2017 GreenXenith
-
-You are free to:
-Share — copy and redistribute the material in any medium or format.
-Adapt — remix, transform, and build upon the material for any purpose, even commercially.
-The licensor cannot revoke these freedoms as long as you follow the license terms.
-
-Under the following terms:
-
-Attribution — You must give appropriate credit, provide a link to the license, and
-indicate if changes were made. You may do so in any reasonable manner, but not in any way
-that suggests the licensor endorses you or your use.
-
-ShareAlike — If you remix, transform, or build upon the material, you must distribute
-your contributions under the same license as the original.
-
-No additional restrictions — You may not apply legal terms or technological measures that
-legally restrict others from doing anything the license permits.
-
-Notices:
-
-You do not have to comply with the license for elements of the material in the public
-domain or where your use is permitted by an applicable exception or limitation.
-No warranties are given. The license may not give you all of the permissions necessary
-for your intended use. For example, other rights such as publicity, privacy, or moral
-rights may limit how you use the material.
-
-For more details:
-http://creativecommons.org/licenses/by-sa/3.0/
diff --git a/mods/stairs/models/stairs_stair.obj b/mods/stairs/models/stairs_stair.obj
deleted file mode 100644
index 198edf6e..00000000
--- a/mods/stairs/models/stairs_stair.obj
+++ /dev/null
@@ -1,115 +0,0 @@
-# Blender v2.72 (sub 0) OBJ File: ''
-# www.blender.org
-mtllib stairs.mtl
-o stairs_top
-v -0.500000 0.000000 -0.500000
-v -0.500000 0.000000 0.000000
-v 0.500000 0.000000 0.000000
-v 0.500000 0.000000 -0.500000
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-v 0.500000 0.500000 0.500000
-vt 0.000000 0.000000
-vt 1.000000 0.000000
-vt 1.000000 0.500000
-vt 0.000000 0.500000
-vt 1.000000 1.000000
-vt 0.000000 1.000000
-vn 0.000000 1.000000 0.000000
-g stairs_top
-usemtl None
-s off
-f 4/1/1 1/2/1 2/3/1 3/4/1
-f 7/5/1 8/6/1 6/4/1 5/3/1
-o stairs_bottom
-v -0.500000 -0.500000 -0.500000
-v 0.500000 -0.500000 -0.500000
-v -0.500000 -0.500000 0.500000
-v 0.500000 -0.500000 0.500000
-vt 1.000000 0.000000
-vt 1.000000 1.000000
-vt 0.000000 1.000000
-vt 0.000000 0.000000
-vn 0.000000 -1.000000 -0.000000
-g stairs_bottom
-usemtl None
-s off
-f 11/7/2 9/8/2 10/9/2 12/10/2
-o stairs_right
-v -0.500000 0.000000 -0.500000
-v -0.500000 -0.500000 -0.500000
-v -0.500000 0.000000 0.000000
-v -0.500000 -0.500000 0.500000
-v -0.500000 0.500000 0.000000
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-vt 0.000000 0.500000
-vt 0.000000 0.000000
-vt 0.500000 0.500000
-vt 1.000000 1.000000
-vt 0.500000 1.000000
-vt 1.000000 0.000000
-vn -1.000000 0.000000 0.000000
-g stairs_right
-usemtl None
-s off
-f 13/11/3 14/12/3 15/13/3
-f 15/13/3 18/14/3 17/15/3
-f 14/12/3 16/16/3 15/13/3
-f 16/16/3 18/14/3 15/13/3
-o stairs_left
-v 0.500000 0.000000 0.000000
-v 0.500000 -0.500000 -0.500000
-v 0.500000 0.000000 -0.500000
-v 0.500000 -0.500000 0.500000
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-v 0.500000 0.500000 0.500000
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-vt 1.000000 0.500000
-vt 0.500000 1.000000
-vt 0.000000 1.000000
-vt 0.000000 0.000000
-vn 1.000000 0.000000 0.000000
-g stairs_left
-usemtl None
-s off
-f 19/17/4 20/18/4 21/19/4
-f 19/17/4 23/20/4 24/21/4
-f 20/18/4 19/17/4 22/22/4
-f 19/17/4 24/21/4 22/22/4
-o stairs_back
-v -0.500000 -0.500000 0.500000
-v 0.500000 -0.500000 0.500000
-v -0.500000 0.500000 0.500000
-v 0.500000 0.500000 0.500000
-vt 1.000000 0.000000
-vt 1.000000 1.000000
-vt 0.000000 1.000000
-vt 0.000000 0.000000
-vn 0.000000 -0.000000 1.000000
-g stairs_back
-usemtl None
-s off
-f 26/23/5 28/24/5 27/25/5 25/26/5
-o stairs_front
-v -0.500000 0.000000 -0.500000
-v -0.500000 -0.500000 -0.500000
-v -0.500000 0.000000 0.000000
-v 0.500000 0.000000 0.000000
-v 0.500000 -0.500000 -0.500000
-v 0.500000 0.000000 -0.500000
-v -0.500000 0.500000 0.000000
-v 0.500000 0.500000 0.000000
-vt 1.000000 0.000000
-vt 1.000000 0.500000
-vt 0.000000 0.500000
-vt 0.000000 0.000000
-vt 1.000000 1.000000
-vt 0.000000 1.000000
-vn 0.000000 0.000000 -1.000000
-g stairs_front
-usemtl None
-s off
-f 30/27/6 29/28/6 34/29/6 33/30/6
-f 31/28/6 35/31/6 36/32/6 32/29/6
diff --git a/mods/stairs/models/stairs_stair_inner.obj b/mods/stairs/models/stairs_stair_inner.obj
deleted file mode 100644
index 5e4968e8..00000000
--- a/mods/stairs/models/stairs_stair_inner.obj
+++ /dev/null
@@ -1,161 +0,0 @@
-# Blender v2.78 (sub 0) OBJ File: ''
-# www.blender.org
-mtllib stairs_inner_stair.mtl
-o stairs_back_right_stairs_back.001
-v 0.500000 -0.500000 0.500000
-v 0.500000 0.500000 0.500000
-v -0.500000 0.500000 0.500000
-v -0.500000 -0.500000 0.500000
-vt 1.0000 0.0000
-vt 1.0000 1.0000
-vt 0.0000 1.0000
-vt 0.0000 0.0000
-vn 0.0000 -0.0000 1.0000
-usemtl None.001
-s 1
-f 1/1/1 2/2/1 3/3/1 4/4/1
-o stairs_front_right_stairs_back.003
-v 0.000000 0.000000 -0.500000
-v 0.000000 0.000000 0.000000
-v 0.000000 0.500000 0.000000
-v 0.000000 0.500000 -0.500000
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-vt 1.0000 1.0000
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-vt 1.0000 0.0000
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-usemtl None
-s 1
-f 5/5/2 6/6/2 7/7/2 8/8/2
-f 9/9/2 10/10/2 11/11/2
-f 11/11/2 12/12/2 13/13/2
-f 10/10/2 14/14/2 11/11/2
-f 14/14/2 12/12/2 11/11/2
-o stairs_bottom
-v -0.500000 -0.500000 0.500000
-v -0.500000 -0.500000 -0.500000
-v 0.500000 -0.500000 -0.500000
-v 0.500000 -0.500000 0.500000
-vt 1.0000 0.0000
-vt 1.0000 1.0000
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-vt 0.0000 0.0000
-vn 0.0000 -1.0000 -0.0000
-usemtl None
-s 1
-f 15/15/3 16/16/3 17/17/3 18/18/3
-o stairs_front_left_stairs_front.002
-v -0.500000 0.000000 0.000000
-v -0.500000 0.500000 0.000000
-v 0.000000 0.500000 0.000000
-v 0.000000 0.000000 0.000000
-v -0.500000 -0.500000 -0.500000
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-v 0.500000 0.000000 -0.500000
-v 0.500000 -0.500000 -0.500000
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-s 1
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-f 23/23/4 24/24/4 25/25/4 26/26/4
-f 27/27/4 28/28/4 29/29/4 30/30/4
-o stairs_top_stairs_top.001
-v 0.000000 0.000000 -0.500000
-v -0.500000 0.000000 -0.500000
-v -0.500000 0.000000 0.000000
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-s 1
-f 31/31/5 32/32/5 33/33/5 34/34/5
-f 35/35/5 36/36/5 37/37/5 38/38/5
-f 39/39/5 40/40/5 41/41/5 42/42/5
-o stairs_back_left_stairs_back.005
-v 0.500000 0.000000 -0.500000
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-vt 0.0000 0.5000
-vt 1.0000 0.0000
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-vt 0.5000 0.0000
-vt 0.5000 0.0000
-vt 0.5000 0.5000
-vt 0.0000 0.5000
-vt 0.0000 0.0000
-vt 1.0000 0.5000
-vt 1.0000 1.0000
-vt 0.5000 1.0000
-vt 0.5000 0.5000
-vn 1.0000 0.0000 0.0000
-usemtl None
-s 1
-f 47/43/6 48/44/6 49/45/6 50/46/6
-f 51/47/6 52/48/6 53/49/6 54/50/6
-f 55/51/6 56/52/6 57/53/6 58/54/6
-usemtl None.002
-f 43/55/6 44/56/6 45/57/6 46/58/6
diff --git a/mods/stairs/models/stairs_stair_outer.obj b/mods/stairs/models/stairs_stair_outer.obj
deleted file mode 100644
index cc1975b0..00000000
--- a/mods/stairs/models/stairs_stair_outer.obj
+++ /dev/null
@@ -1,136 +0,0 @@
-# Blender v2.78 (sub 0) OBJ File: ''
-# www.blender.org
-mtllib stairs_outer_stair.mtl
-o stairs_bottom
-v -0.500000 -0.500000 0.500000
-v -0.500000 -0.500000 -0.500000
-v 0.500000 -0.500000 -0.500000
-v 0.500000 -0.500000 0.500000
-vt 1.0000 0.0000
-vt 1.0000 1.0000
-vt 0.0000 1.0000
-vt 0.0000 0.0000
-vn 0.0000 -1.0000 -0.0000
-usemtl None
-s 1
-f 1/1/1 2/2/1 3/3/1 4/4/1
-o stairs_back_left_stairs_left
-v 0.500000 0.000000 0.000000
-v 0.500000 -0.500000 -0.500000
-v 0.500000 0.000000 -0.500000
-v 0.500000 0.500000 0.000000
-v 0.500000 0.500000 0.500000
-v 0.500000 -0.500000 0.500000
-vt 0.5000 0.5000
-vt 1.0000 0.0000
-vt 1.0000 0.5000
-vt 0.5000 1.0000
-vt 0.0000 1.0000
-vt 0.0000 0.0000
-vn 1.0000 0.0000 0.0000
-usemtl None
-s 1
-f 5/5/2 6/6/2 7/7/2
-f 5/5/2 8/8/2 9/9/2
-f 6/6/2 5/5/2 10/10/2
-f 5/5/2 9/9/2 10/10/2
-o stairs_back_right_stairs_back
-v 0.000000 -0.500000 0.500000
-v 0.000000 -0.000000 0.500000
-v -0.500000 -0.000000 0.500000
-v -0.500000 -0.500000 0.500000
-v 0.500000 -0.500000 0.500000
-v 0.500000 -0.000000 0.500000
-v 0.500000 0.500000 0.500000
-v 0.000000 0.500000 0.500000
-vt 0.5000 0.0000
-vt 0.5000 0.5000
-vt 0.0000 0.5000
-vt 0.0000 0.0000
-vt 1.0000 0.0000
-vt 1.0000 0.5000
-vt 1.0000 1.0000
-vt 0.5000 1.0000
-vn 0.0000 -0.0000 1.0000
-usemtl None
-s 1
-f 11/11/3 12/12/3 13/13/3 14/14/3
-f 15/15/3 16/16/3 12/12/3 11/11/3
-f 16/16/3 17/17/3 18/18/3 12/12/3
-o stairs_top_stairs_top.001
-v 0.000000 0.500000 0.500000
-v 0.501689 0.500000 0.500000
-v 0.501689 0.500000 0.000000
-v 0.000000 0.500000 0.000000
-v -0.500000 -0.000000 0.500000
-v 0.001689 -0.000000 0.500000
-v 0.001689 0.000000 0.000000
-v -0.500000 0.000000 0.000000
-v 0.500000 0.000000 -0.500000
-v -0.500000 0.000000 -0.500000
-v -0.500000 0.000000 0.000000
-v 0.500000 0.000000 0.000000
-vt 0.5000 0.0000
-vt 1.0000 0.0000
-vt 1.0000 0.5000
-vt 0.5000 0.5000
-vt 0.0000 0.0000
-vt 0.5000 0.0000
-vt 0.5000 0.5000
-vt 0.0000 0.5000
-vt 1.0000 1.0000
-vt 0.0000 1.0000
-vt 0.0000 0.5000
-vt 1.0000 0.5000
-vn 0.0000 1.0000 0.0000
-usemtl None
-s 1
-f 19/19/4 20/20/4 21/21/4 22/22/4
-usemtl None.004
-f 23/23/4 24/24/4 25/25/4 26/26/4
-f 27/27/4 28/28/4 29/29/4 30/30/4
-o stairs_front_left_stairs_front.000
-v -0.500000 -0.500000 -0.500000
-v -0.500000 0.000000 -0.500000
-v 0.500000 0.000000 -0.500000
-v 0.500000 -0.500000 -0.500000
-v 0.500000 0.500000 0.000000
-v 0.500000 0.000000 0.000000
-v 0.000000 0.000000 0.000000
-v 0.000000 0.500000 0.000000
-vt 1.0000 0.0000
-vt 1.0000 0.5000
-vt -0.0000 0.5000
-vt -0.0000 0.0000
-vt 0.5000 0.5000
-vt 0.5000 1.0000
-vt -0.0000 1.0000
-vt -0.0000 0.5000
-vn 0.0000 0.0000 -1.0000
-usemtl None.001
-s 1
-f 31/31/5 32/32/5 33/33/5 34/34/5
-usemtl None.003
-f 37/35/5 38/36/5 35/37/5 36/38/5
-o stairs_front_right_stairs_right.001_stairs_front_left_stairs_front.002
-v -0.500000 -0.500000 0.500000
-v -0.500000 0.000000 0.500000
-v -0.500000 0.000000 -0.500000
-v -0.500000 -0.500000 -0.500000
-v 0.000000 0.000000 0.500000
-v 0.000000 0.500000 0.500000
-v 0.000000 0.500000 -0.000000
-v -0.000000 0.000000 0.000000
-vt 1.0000 0.0000
-vt 1.0000 0.5021
-vt -0.0000 0.5021
-vt -0.0000 0.0000
-vt 1.0000 0.5021
-vt 1.0000 1.0000
-vt 0.5000 1.0000
-vt 0.5000 0.5021
-vn -1.0000 0.0000 0.0000
-usemtl None.002
-s 1
-f 39/39/6 40/40/6 41/41/6 42/42/6
-f 43/43/6 44/44/6 45/45/6 46/46/6