From 1ccedac34a88347663b820f2751857514f14e45c Mon Sep 17 00:00:00 2001
From: tacigar <ig.lhound@gmail.com>
Date: Wed, 14 Sep 2016 09:02:21 +0900
Subject: [PATCH 01/13] [ADD] First Commit

---
 maidroid_tool/init.lua | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 maidroid_tool/init.lua

diff --git a/maidroid_tool/init.lua b/maidroid_tool/init.lua
new file mode 100644
index 0000000..d9fa7bf
--- /dev/null
+++ b/maidroid_tool/init.lua
@@ -0,0 +1,9 @@
+------------------------------------------------------------
+-- Copyright (c) 2016 tacigar. All rights reserved.
+-- https://github.com/tacigar/maidroid
+------------------------------------------------------------
+
+maidroid_tool = {}
+
+maidroid_tool.modname = "maidroid_tool"
+maidroid_tool.modpath = minetest.get_modpath(maidroid_tool.modname)

From 2c7377886982db54f9177d78a6546874fdff8594 Mon Sep 17 00:00:00 2001
From: tacigar <ig.lhound@gmail.com>
Date: Wed, 14 Sep 2016 09:21:45 +0900
Subject: [PATCH 02/13] [ADD] Add recipe empty core

---
 maidroid_core/cores/empty.lua | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/maidroid_core/cores/empty.lua b/maidroid_core/cores/empty.lua
index 163fd05..18f19f9 100644
--- a/maidroid_core/cores/empty.lua
+++ b/maidroid_core/cores/empty.lua
@@ -12,3 +12,14 @@ maidroid.register_core("maidroid_core:empty", {
 	on_pause         = function(self) end,
 	on_step          = function(self, dtime) end,
 })
+
+-- only a recipe of the empty core is registered.
+-- other cores is created by writing on the empty core.
+minetest.register_craft{
+	output = "maidroid_core:empty",
+	recipe = {
+		{"default:steel_ingot", "default:steel_ingot", "default:steel_ingot"},
+		{"default:steel_ingot",    "default:obsidian", "default:steel_ingot"},
+		{"default:steel_ingot", "default:steel_ingot", "default:steel_ingot"},
+	},
+}

From 998c9bd46abf9ad6054541550c87cdf535cacfcd Mon Sep 17 00:00:00 2001
From: tacigar <ig.lhound@gmail.com>
Date: Wed, 14 Sep 2016 09:35:28 +0900
Subject: [PATCH 03/13] [ADD] Add core_writer

---
 maidroid_tool/core_writer.lua | 11 +++++++++++
 1 file changed, 11 insertions(+)
 create mode 100644 maidroid_tool/core_writer.lua

diff --git a/maidroid_tool/core_writer.lua b/maidroid_tool/core_writer.lua
new file mode 100644
index 0000000..1edf151
--- /dev/null
+++ b/maidroid_tool/core_writer.lua
@@ -0,0 +1,11 @@
+------------------------------------------------------------
+-- Copyright (c) 2016 tacigar. All rights reserved.
+-- https://github.com/tacigar/maidroid
+------------------------------------------------------------
+
+-- register a definition of a core writer.
+minetest.register_node("maidroid_tool:core_writer", {
+	drawtype        = "nodebox",
+	tiles           = {},
+
+})

From 5e9cda5ce76ad9da5b7b49842ac8d7fb43e248c5 Mon Sep 17 00:00:00 2001
From: tacigar <ig.lhound@gmail.com>
Date: Wed, 14 Sep 2016 11:23:27 +0900
Subject: [PATCH 04/13] [UPDATE] Update core writer

---
 maidroid_tool/core_writer.lua                 |  42 ++++++++++++++++--
 maidroid_tool/depends.txt                     |   1 +
 maidroid_tool/init.lua                        |   2 +
 .../maidroid_tool_core_writer_bottom.png      | Bin 0 -> 225 bytes
 .../maidroid_tool_core_writer_bottom.xcf      | Bin 0 -> 1055 bytes
 .../maidroid_tool_core_writer_front.png       | Bin 0 -> 282 bytes
 .../maidroid_tool_core_writer_front.xcf       | Bin 0 -> 1103 bytes
 .../maidroid_tool_core_writer_right.png       | Bin 0 -> 265 bytes
 .../maidroid_tool_core_writer_right.xcf       | Bin 0 -> 953 bytes
 .../maidroid_tool_core_writer_top.png         | Bin 0 -> 233 bytes
 .../maidroid_tool_core_writer_top.xcf         | Bin 0 -> 1052 bytes
 11 files changed, 41 insertions(+), 4 deletions(-)
 create mode 100644 maidroid_tool/depends.txt
 create mode 100644 maidroid_tool/textures/maidroid_tool_core_writer_bottom.png
 create mode 100644 maidroid_tool/textures/maidroid_tool_core_writer_bottom.xcf
 create mode 100644 maidroid_tool/textures/maidroid_tool_core_writer_front.png
 create mode 100644 maidroid_tool/textures/maidroid_tool_core_writer_front.xcf
 create mode 100644 maidroid_tool/textures/maidroid_tool_core_writer_right.png
 create mode 100644 maidroid_tool/textures/maidroid_tool_core_writer_right.xcf
 create mode 100644 maidroid_tool/textures/maidroid_tool_core_writer_top.png
 create mode 100644 maidroid_tool/textures/maidroid_tool_core_writer_top.xcf

diff --git a/maidroid_tool/core_writer.lua b/maidroid_tool/core_writer.lua
index 1edf151..404fc24 100644
--- a/maidroid_tool/core_writer.lua
+++ b/maidroid_tool/core_writer.lua
@@ -4,8 +4,42 @@
 ------------------------------------------------------------
 
 -- register a definition of a core writer.
-minetest.register_node("maidroid_tool:core_writer", {
-	drawtype        = "nodebox",
-	tiles           = {},
+(function()
+	local node_box = {
+		type = "fixed",
+		fixed = {
+			{-0.4375,   -0.25, -0.4375,  0.4375,  0.1875,  0.4375},
+			{ 0.1875,  0.3125,  0.0625,  0.4375,   0.375,   0.125},
+			{ -0.375,  0.1875,  -0.375,   0.375,    0.25,   0.375},
+			{-0.0625,    -0.5, -0.0625,  0.0625,   0.375,  0.0625},
+			{  0.375,  0.1875,  0.0625,  0.4375,   0.375,   0.125},
+			{ -0.375,    -0.5,  -0.375,   0.375,   -0.25,   0.375},
+		},
+	}
 
-})
+	local tiles = {
+		"maidroid_tool_core_writer_top.png",
+		"maidroid_tool_core_writer_bottom.png",
+		"maidroid_tool_core_writer_right.png",
+		"maidroid_tool_core_writer_right.png^[transformFX",
+		"maidroid_tool_core_writer_front.png^[transformFX",
+		"maidroid_tool_core_writer_front.png",
+	}
+
+	minetest.register_node("maidroid_tool:core_writer", {
+		description        = "maidroid tool : core writer",
+		drawtype           = "nodebox",
+		paramtype          = "light",
+		paramtype2         = "facedir",
+		groups             = {cracky = 2},
+		is_ground_content  = false,
+		sounds             = default.node_sound_stone_defaults(),
+		node_box           = node_box,
+		tiles              = tiles,
+	})
+end) ()
+
+-- register a definition of a core entity.
+(function()
+
+end) ()
diff --git a/maidroid_tool/depends.txt b/maidroid_tool/depends.txt
new file mode 100644
index 0000000..4ad96d5
--- /dev/null
+++ b/maidroid_tool/depends.txt
@@ -0,0 +1 @@
+default
diff --git a/maidroid_tool/init.lua b/maidroid_tool/init.lua
index d9fa7bf..a304258 100644
--- a/maidroid_tool/init.lua
+++ b/maidroid_tool/init.lua
@@ -7,3 +7,5 @@ maidroid_tool = {}
 
 maidroid_tool.modname = "maidroid_tool"
 maidroid_tool.modpath = minetest.get_modpath(maidroid_tool.modname)
+
+dofile(maidroid_tool.modpath .. "/core_writer.lua")
diff --git a/maidroid_tool/textures/maidroid_tool_core_writer_bottom.png b/maidroid_tool/textures/maidroid_tool_core_writer_bottom.png
new file mode 100644
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new file mode 100644
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new file mode 100644
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new file mode 100644
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diff --git a/maidroid_tool/textures/maidroid_tool_core_writer_right.png b/maidroid_tool/textures/maidroid_tool_core_writer_right.png
new file mode 100644
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new file mode 100644
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GIT binary patch
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diff --git a/maidroid_tool/textures/maidroid_tool_core_writer_top.png b/maidroid_tool/textures/maidroid_tool_core_writer_top.png
new file mode 100644
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diff --git a/maidroid_tool/textures/maidroid_tool_core_writer_top.xcf b/maidroid_tool/textures/maidroid_tool_core_writer_top.xcf
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literal 0
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From 139f8f00d1575de85cafd8ac6cb76c46d1914c8b Mon Sep 17 00:00:00 2001
From: tacigar <ig.lhound@gmail.com>
Date: Wed, 14 Sep 2016 12:33:23 +0900
Subject: [PATCH 05/13] [UPDATE] Update something

---
 maidroid_tool/core_writer.lua | 22 +++++++++++++++++++++-
 maidroid_tool/depends.txt     |  2 ++
 2 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/maidroid_tool/core_writer.lua b/maidroid_tool/core_writer.lua
index 404fc24..0bc9aef 100644
--- a/maidroid_tool/core_writer.lua
+++ b/maidroid_tool/core_writer.lua
@@ -37,9 +37,29 @@
 		node_box           = node_box,
 		tiles              = tiles,
 	})
-end) ()
+end) ();
 
 -- register a definition of a core entity.
 (function()
+	minetest.register_node("maidroid_tool:core_node", {
+		tiles = {"maidroid_core_empty.png"},
+
+	})
+
+
+	minetest.register_entity("maidroid_tool:core_entity", {
+		physical     = false,
+		visual       = "wielditem",
+		visual_size  = {x = 0.5, y = 0.5},
+		nodename     = "maidroid_tool:core_node",
+
+		on_activate = function(self, staticdata)
+			self.object:set_properties{textures = {"maidroid_tool:core_node"}}
+		end,
+	})
+
+	minetest.register_on_punchnode(function(pos, node, puncher, pointed_thing)
+		minetest.add_entity(pointed_thing.above, "maidroid_tool:core_entity")
+	end)
 
 end) ()
diff --git a/maidroid_tool/depends.txt b/maidroid_tool/depends.txt
index 4ad96d5..6aec5ed 100644
--- a/maidroid_tool/depends.txt
+++ b/maidroid_tool/depends.txt
@@ -1 +1,3 @@
 default
+maidroid
+maidroid_core

From 72f08d161162ba7a88701cfd234fcc875c99d2c1 Mon Sep 17 00:00:00 2001
From: tacigar <ig.lhound@gmail.com>
Date: Wed, 14 Sep 2016 17:34:16 +0900
Subject: [PATCH 06/13] [UPDATE] Update something

---
 maidroid_tool/core_writer.lua                 |  41 +++++++++++++++---
 .../textures/maidroid_tool_core_right.png     | Bin 0 -> 676 bytes
 .../textures/maidroid_tool_core_right.xcf     | Bin 0 -> 1429 bytes
 .../textures/maidroid_tool_core_top.png       | Bin 0 -> 996 bytes
 .../textures/maidroid_tool_core_top.xcf       | Bin 0 -> 1703 bytes
 5 files changed, 34 insertions(+), 7 deletions(-)
 create mode 100644 maidroid_tool/textures/maidroid_tool_core_right.png
 create mode 100644 maidroid_tool/textures/maidroid_tool_core_right.xcf
 create mode 100644 maidroid_tool/textures/maidroid_tool_core_top.png
 create mode 100644 maidroid_tool/textures/maidroid_tool_core_top.xcf

diff --git a/maidroid_tool/core_writer.lua b/maidroid_tool/core_writer.lua
index 0bc9aef..cfbb64c 100644
--- a/maidroid_tool/core_writer.lua
+++ b/maidroid_tool/core_writer.lua
@@ -41,21 +41,48 @@ end) ();
 
 -- register a definition of a core entity.
 (function()
-	minetest.register_node("maidroid_tool:core_node", {
-		tiles = {"maidroid_core_empty.png"},
+	local node_box = {
+		type = "fixed",
+		fixed = {
+			{   -0.5,    -0.5,  -0.125,     0.5, -0.4375,   0.125},
+			{ -0.125,    -0.5,    -0.5,   0.125, -0.4375,     0.5},
+			{  -0.25,    -0.5, -0.4375,    0.25, -0.4375,  0.4375},
+			{ -0.375,    -0.5,  -0.375,   0.375, -0.4375,   0.375},
+			{-0.4375,    -0.5,   -0.25,  0.4375, -0.4375,    0.25},
+		},
+	}
 
+	local tiles = {
+		"maidroid_tool_core_top.png",
+		"maidroid_tool_core_top.png",
+		"maidroid_tool_core_right.png",
+		"maidroid_tool_core_right.png",
+		"maidroid_tool_core_right.png",
+		"maidroid_tool_core_right.png",
+	}
+
+	minetest.register_node("maidroid_tool:core_node", {
+		drawtype    = "nodebox",
+		tiles       = tiles,
+		node_box    = node_box,
+		paramtype   = "light",
+		paramtype2  = "facedir",
 	})
 
-
 	minetest.register_entity("maidroid_tool:core_entity", {
-		physical     = false,
-		visual       = "wielditem",
-		visual_size  = {x = 0.5, y = 0.5},
-		nodename     = "maidroid_tool:core_node",
+		physical       = false,
+		visual         = "wielditem",
+		visual_size    = {x = 0.5, y = 0.5},
+		collisionbox  = {0, 0, 0, 0, 0, 0},
 
 		on_activate = function(self, staticdata)
 			self.object:set_properties{textures = {"maidroid_tool:core_node"}}
 		end,
+
+		on_step = function(self, dtime)
+			local yaw = self.object:getyaw()
+			self.object:setyaw(yaw + 0.1)
+		end,
 	})
 
 	minetest.register_on_punchnode(function(pos, node, puncher, pointed_thing)
diff --git a/maidroid_tool/textures/maidroid_tool_core_right.png b/maidroid_tool/textures/maidroid_tool_core_right.png
new file mode 100644
index 0000000000000000000000000000000000000000..dc20489e873c24bb076550182bfae57784d524c2
GIT binary patch
literal 676
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HcmV?d00001

diff --git a/maidroid_tool/textures/maidroid_tool_core_right.xcf b/maidroid_tool/textures/maidroid_tool_core_right.xcf
new file mode 100644
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diff --git a/maidroid_tool/textures/maidroid_tool_core_top.png b/maidroid_tool/textures/maidroid_tool_core_top.png
new file mode 100644
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diff --git a/maidroid_tool/textures/maidroid_tool_core_top.xcf b/maidroid_tool/textures/maidroid_tool_core_top.xcf
new file mode 100644
index 0000000000000000000000000000000000000000..5868e8cad0e2cb1d9ab2a4f7e478e1b15f2f95b6
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HcmV?d00001


From 99fd18ec0db00b396727c5b8309e7f7a90c11a9e Mon Sep 17 00:00:00 2001
From: tacigar <ig.lhound@gmail.com>
Date: Wed, 14 Sep 2016 18:52:56 +0900
Subject: [PATCH 07/13] [UPDATE] Commit before implementing core writer
 callbacks

---
 maidroid_tool/core_writer.lua | 91 ++++++++++++++++++++++++-----------
 1 file changed, 64 insertions(+), 27 deletions(-)

diff --git a/maidroid_tool/core_writer.lua b/maidroid_tool/core_writer.lua
index cfbb64c..c29da5d 100644
--- a/maidroid_tool/core_writer.lua
+++ b/maidroid_tool/core_writer.lua
@@ -15,28 +15,70 @@
 			{  0.375,  0.1875,  0.0625,  0.4375,   0.375,   0.125},
 			{ -0.375,    -0.5,  -0.375,   0.375,   -0.25,   0.375},
 		},
-	}
+	};
 
-	local tiles = {
-		"maidroid_tool_core_writer_top.png",
-		"maidroid_tool_core_writer_bottom.png",
-		"maidroid_tool_core_writer_right.png",
-		"maidroid_tool_core_writer_right.png^[transformFX",
-		"maidroid_tool_core_writer_front.png^[transformFX",
-		"maidroid_tool_core_writer_front.png",
-	}
+	function allow_metadata_inventory_put(pos, listname, index, stack, player)
 
-	minetest.register_node("maidroid_tool:core_writer", {
-		description        = "maidroid tool : core writer",
-		drawtype           = "nodebox",
-		paramtype          = "light",
-		paramtype2         = "facedir",
-		groups             = {cracky = 2},
-		is_ground_content  = false,
-		sounds             = default.node_sound_stone_defaults(),
-		node_box           = node_box,
-		tiles              = tiles,
-	})
+	end
+
+	function allow_metadata_inventory_move(pos, from_list, from_index, to_list, to_index, count, player)
+
+	end
+
+	function allow_metadata_inventory_take(pos, listname, index, stack, player)
+
+	end
+
+	(function() -- register a definition of an inactive core writer.
+		local tiles = {
+			"maidroid_tool_core_writer_top.png",
+			"maidroid_tool_core_writer_bottom.png",
+			"maidroid_tool_core_writer_right.png",
+			"maidroid_tool_core_writer_right.png^[transformFX",
+			"maidroid_tool_core_writer_front.png^[transformFX",
+			"maidroid_tool_core_writer_front.png",
+		}
+
+		local formspec_string =	"size[8,9]"
+			.. "list[current_player;main;0,5;8,1;]"
+			.. "list[current_player;main;0,6.2;8,3;8]"
+
+		function on_construct(pos)
+			local meta = minetest.get_meta(pos)
+			meta:set_string("formspec", formspec_string)
+
+			local inventory = meta:get_inventory()
+			inventory:set_size("core", 1)
+			inventory:set_size("fuel", 1)
+			inventory:set_size("dye", 1)
+		end
+
+		function on_metadata_inventory_move = function(pos)
+
+		end
+
+		minetest.register_node("maidroid_tool:core_writer", {
+			description                    = "maidroid tool : core writer",
+			drawtype                       = "nodebox",
+			paramtype                      = "light",
+			paramtype2                     = "facedir",
+			groups                         = {cracky = 2},
+			is_ground_content              = false,
+			sounds                         = default.node_sound_stone_defaults(),
+			node_box                       = node_box,
+			tiles                          = tiles,
+			can_dig                        = can_dig,
+			on_construct                   = on_construct,
+			on_metadata_inventory_move     = on_metadata_inventory_move,
+			allow_metadata_inventory_put   = allow_metadata_inventory_put,
+			allow_metadata_inventory_move  = allow_metadata_inventory_move,
+			allow_metadata_inventory_take  = allow_metadata_inventory_take,
+		})
+	end) ();
+
+	(function () -- register a definition of an active core writer.
+
+	end) ();
 end) ();
 
 -- register a definition of a core entity.
@@ -73,7 +115,7 @@ end) ();
 		physical       = false,
 		visual         = "wielditem",
 		visual_size    = {x = 0.5, y = 0.5},
-		collisionbox  = {0, 0, 0, 0, 0, 0},
+		collisionbox   = {0, 0, 0, 0, 0, 0},
 
 		on_activate = function(self, staticdata)
 			self.object:set_properties{textures = {"maidroid_tool:core_node"}}
@@ -84,9 +126,4 @@ end) ();
 			self.object:setyaw(yaw + 0.1)
 		end,
 	})
-
-	minetest.register_on_punchnode(function(pos, node, puncher, pointed_thing)
-		minetest.add_entity(pointed_thing.above, "maidroid_tool:core_entity")
-	end)
-
-end) ()
+end) ();

From b614a24d23386b0859ea507b4258b087baa2ed78 Mon Sep 17 00:00:00 2001
From: tacigar <ig.lhound@gmail.com>
Date: Wed, 14 Sep 2016 19:22:44 +0900
Subject: [PATCH 08/13] [UPDATE] Update inactive core writer callbasks (allow)

---
 maidroid_tool/core_writer.lua | 39 ++++++++++++++++++++++++-----------
 maidroid_tool/depends.txt     |  1 +
 2 files changed, 28 insertions(+), 12 deletions(-)

diff --git a/maidroid_tool/core_writer.lua b/maidroid_tool/core_writer.lua
index c29da5d..93f409e 100644
--- a/maidroid_tool/core_writer.lua
+++ b/maidroid_tool/core_writer.lua
@@ -17,18 +17,6 @@
 		},
 	};
 
-	function allow_metadata_inventory_put(pos, listname, index, stack, player)
-
-	end
-
-	function allow_metadata_inventory_move(pos, from_list, from_index, to_list, to_index, count, player)
-
-	end
-
-	function allow_metadata_inventory_take(pos, listname, index, stack, player)
-
-	end
-
 	(function() -- register a definition of an inactive core writer.
 		local tiles = {
 			"maidroid_tool_core_writer_top.png",
@@ -57,6 +45,33 @@
 
 		end
 
+		function allow_metadata_inventory_put(pos, listname, index, stack, player)
+			local meta = minetest.get_meta(pos)
+			local inventory = meta:get_inventory()
+			local itemname = stack:get_name()
+
+			if (listname == "fuel" and itemname == "default:coal_lump") then
+				return stack:get_count()
+			elseif listname == "dye" and minetest.get_item_group(itemname, "dye") > 0 then
+				return stack:get_count()
+			else if listname == "core" and maidroid.is_core(itemname then
+				return stack:get_count()
+			end
+			return 0
+		end
+
+		function allow_metadata_inventory_move(pos, from_list, from_index, to_list, to_index, count, player)
+			local meta = minetest.get_meta(pos)
+			local inventory = meta:get_inventory()
+			local stack = inventory:get_stack(from_list, from_index)
+
+			return allow_metadata_inventory_put(pos, listname, to_index, stack, player)
+		end
+
+		function allow_metadata_inventory_take(pos, listname, index, stack, player)
+			return stack:get_count() -- maybe add more.
+		end
+
 		minetest.register_node("maidroid_tool:core_writer", {
 			description                    = "maidroid tool : core writer",
 			drawtype                       = "nodebox",
diff --git a/maidroid_tool/depends.txt b/maidroid_tool/depends.txt
index 6aec5ed..bac044c 100644
--- a/maidroid_tool/depends.txt
+++ b/maidroid_tool/depends.txt
@@ -1,3 +1,4 @@
 default
+dye
 maidroid
 maidroid_core

From 02c9771216fa2217c7e69735313f6e2a407a801e Mon Sep 17 00:00:00 2001
From: tacigar <ig.lhound@gmail.com>
Date: Wed, 14 Sep 2016 20:04:21 +0900
Subject: [PATCH 09/13] [ADD] Add active core writer

---
 maidroid_tool/core_writer.lua | 100 +++++++++++++++++++++++++---------
 1 file changed, 75 insertions(+), 25 deletions(-)

diff --git a/maidroid_tool/core_writer.lua b/maidroid_tool/core_writer.lua
index 93f409e..0dad5be 100644
--- a/maidroid_tool/core_writer.lua
+++ b/maidroid_tool/core_writer.lua
@@ -15,7 +15,42 @@
 			{  0.375,  0.1875,  0.0625,  0.4375,   0.375,   0.125},
 			{ -0.375,    -0.5,  -0.375,   0.375,   -0.25,   0.375},
 		},
-	};
+	}
+
+	function can_dig(pos, player)
+		local meta = minetest.get_meta(pos)
+		local inventory = meta:get_inventory()
+		return (
+			inventory:is_empty("core") and
+			inventory:is_empty("fuel") and
+			inventory:is_empty("dye")
+		)
+	end;
+
+	function allow_metadata_inventory_put(pos, listname, index, stack, player)
+		local meta = minetest.get_meta(pos)
+		local inventory = meta:get_inventory()
+		local itemname = stack:get_name()
+
+		if (listname == "fuel" and itemname == "default:coal_lump") then
+			return stack:get_count()
+		elseif listname == "dye" and minetest.get_item_group(itemname, "dye") > 0 then
+			return stack:get_count()
+		else if listname == "core" and maidroid.is_core(itemname then
+			return stack:get_count()
+		end
+		return 0
+	end
+
+	function allow_metadata_inventory_move(pos, from_list, from_index, to_list, to_index, count, player)
+		local meta = minetest.get_meta(pos)
+		local inventory = meta:get_inventory()
+		local stack = inventory:get_stack(from_list, from_index)
+
+		return allow_metadata_inventory_put(pos, listname, to_index, stack, player)
+	end
+
+	--------------------------------------------------------------------
 
 	(function() -- register a definition of an inactive core writer.
 		local tiles = {
@@ -45,29 +80,6 @@
 
 		end
 
-		function allow_metadata_inventory_put(pos, listname, index, stack, player)
-			local meta = minetest.get_meta(pos)
-			local inventory = meta:get_inventory()
-			local itemname = stack:get_name()
-
-			if (listname == "fuel" and itemname == "default:coal_lump") then
-				return stack:get_count()
-			elseif listname == "dye" and minetest.get_item_group(itemname, "dye") > 0 then
-				return stack:get_count()
-			else if listname == "core" and maidroid.is_core(itemname then
-				return stack:get_count()
-			end
-			return 0
-		end
-
-		function allow_metadata_inventory_move(pos, from_list, from_index, to_list, to_index, count, player)
-			local meta = minetest.get_meta(pos)
-			local inventory = meta:get_inventory()
-			local stack = inventory:get_stack(from_list, from_index)
-
-			return allow_metadata_inventory_put(pos, listname, to_index, stack, player)
-		end
-
 		function allow_metadata_inventory_take(pos, listname, index, stack, player)
 			return stack:get_count() -- maybe add more.
 		end
@@ -91,8 +103,46 @@
 		})
 	end) ();
 
-	(function () -- register a definition of an active core writer.
+	--------------------------------------------------------------------
 
+	(function () -- register a definition of an active core writer.
+		local tiles = {
+			"maidroid_tool_core_writer_top.png",
+			"maidroid_tool_core_writer_bottom.png",
+			"maidroid_tool_core_writer_right.png",
+			"maidroid_tool_core_writer_right.png^[transformFX",
+			"maidroid_tool_core_writer_front.png^[transformFX",
+			{
+				backface_culling = false,
+				image = "maidroid_tool_core_writer_front_active.png",
+
+				animation = {
+					type      = "vertical_frames",
+					aspect_w  = 16,
+					aspect_h  = 16,
+					length    = 1.5,
+				},
+			},
+		}
+
+		function allow_metadata_inventory_take(pos, listname, index, stack, player)
+			return stack:get_count() -- maybe add more.
+		end
+
+		minetest.register_node("maidroid_tool:core_writer_active", {
+			drawtype                       = "nodebox",
+			paramtype                      = "light",
+			paramtype2                     = "facedir",
+			groups                         = {cracky = 2},
+			is_ground_content              = false,
+			sounds                         = default.node_sound_stone_defaults(),
+			node_box                       = node_box,
+			tiles                          = tiles,
+			can_dig                        = can_dig,
+			allow_metadata_inventory_put   = allow_metadata_inventory_put,
+			allow_metadata_inventory_move  = allow_metadata_inventory_move,
+			allow_metadata_inventory_take  = allow_metadata_inventory_take,
+		})
 	end) ();
 end) ();
 

From 9a2376461c5b683726a528c4bc4c9e4b7ea04455 Mon Sep 17 00:00:00 2001
From: tacigar <ig.lhound@gmail.com>
Date: Wed, 14 Sep 2016 20:20:14 +0900
Subject: [PATCH 10/13] [FIX] Fix syntax errors

---
 maidroid_tool/core_writer.lua | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/maidroid_tool/core_writer.lua b/maidroid_tool/core_writer.lua
index 0dad5be..d36d35b 100644
--- a/maidroid_tool/core_writer.lua
+++ b/maidroid_tool/core_writer.lua
@@ -25,7 +25,7 @@
 			inventory:is_empty("fuel") and
 			inventory:is_empty("dye")
 		)
-	end;
+	end
 
 	function allow_metadata_inventory_put(pos, listname, index, stack, player)
 		local meta = minetest.get_meta(pos)
@@ -36,7 +36,7 @@
 			return stack:get_count()
 		elseif listname == "dye" and minetest.get_item_group(itemname, "dye") > 0 then
 			return stack:get_count()
-		else if listname == "core" and maidroid.is_core(itemname then
+		elseif listname == "core" and maidroid.is_core(itemname) then
 			return stack:get_count()
 		end
 		return 0
@@ -52,7 +52,7 @@
 
 	--------------------------------------------------------------------
 
-	(function() -- register a definition of an inactive core writer.
+	;(function() -- register a definition of an inactive core writer.
 		local tiles = {
 			"maidroid_tool_core_writer_top.png",
 			"maidroid_tool_core_writer_bottom.png",
@@ -76,7 +76,7 @@
 			inventory:set_size("dye", 1)
 		end
 
-		function on_metadata_inventory_move = function(pos)
+		function on_metadata_inventory_move(pos)
 
 		end
 
@@ -101,11 +101,11 @@
 			allow_metadata_inventory_move  = allow_metadata_inventory_move,
 			allow_metadata_inventory_take  = allow_metadata_inventory_take,
 		})
-	end) ();
+	end) ()
 
 	--------------------------------------------------------------------
 
-	(function () -- register a definition of an active core writer.
+	;(function () -- register a definition of an active core writer.
 		local tiles = {
 			"maidroid_tool_core_writer_top.png",
 			"maidroid_tool_core_writer_bottom.png",
@@ -143,11 +143,11 @@
 			allow_metadata_inventory_move  = allow_metadata_inventory_move,
 			allow_metadata_inventory_take  = allow_metadata_inventory_take,
 		})
-	end) ();
-end) ();
+	end) ()
+end) ()
 
 -- register a definition of a core entity.
-(function()
+;(function()
 	local node_box = {
 		type = "fixed",
 		fixed = {
@@ -191,4 +191,4 @@ end) ();
 			self.object:setyaw(yaw + 0.1)
 		end,
 	})
-end) ();
+end) ()

From 01b684397317a0d48786a7a2665a95c14bc9d909 Mon Sep 17 00:00:00 2001
From: tacigar <ig.lhound@gmail.com>
Date: Wed, 14 Sep 2016 20:25:33 +0900
Subject: [PATCH 11/13] [FIX] inner global functions -> local function

---
 maidroid/api.lua              | 14 +++++++-------
 maidroid_tool/core_writer.lua | 14 +++++++-------
 2 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/maidroid/api.lua b/maidroid/api.lua
index 9813bd5..77d0424 100644
--- a/maidroid/api.lua
+++ b/maidroid/api.lua
@@ -165,7 +165,7 @@ function maidroid.register_maidroid(product_name, def)
 	end
 
 	-- create_inventory creates a new inventory, and returns it.
-	function create_inventory(self)
+	local function create_inventory(self)
 		self.inventory_name = self.product_name .. tostring(self.manufacturing_number)
 		local inventory = minetest.create_detached_inventory(self.inventory_name, {
 			on_put = function(inv, listname, index, stack, player)
@@ -202,7 +202,7 @@ function maidroid.register_maidroid(product_name, def)
 	end
 
 	-- create_formspec_string returns a string that represents a formspec definition.
-	function create_formspec_string(self)
+	local function create_formspec_string(self)
 		return "size[8,9]"
 			.. "list[detached:"..self.inventory_name..";main;0,0;4,4;]"
 			.. "label[5,0;core]"
@@ -212,7 +212,7 @@ function maidroid.register_maidroid(product_name, def)
 	end
 
 	-- on_activate is a callback function that is called when the object is created or recreated.
-	function on_activate(self, staticdata)
+	local function on_activate(self, staticdata)
 		-- parse the staticdata, and compose a inventory.
 		if staticdata == "" then
 			self.product_name = product_name
@@ -256,7 +256,7 @@ function maidroid.register_maidroid(product_name, def)
 	end
 
 	-- get_staticdata is a callback function that is called when the object is destroyed.
-	function get_staticdata(self)
+	local function get_staticdata(self)
 		local inventory = self:get_inventory()
 		local data = {
 			["product_name"] = self.product_name,
@@ -279,7 +279,7 @@ function maidroid.register_maidroid(product_name, def)
 	end
 
 	-- on_step is a callback function that is called every delta times.
-	function on_step(self, dtime)
+	local function on_step(self, dtime)
 		if (not self.pause) and self.core_name ~= "" then
 			local core = maidroid.registered_cores[self.core_name]
 			core.on_step(self, dtime)
@@ -287,7 +287,7 @@ function maidroid.register_maidroid(product_name, def)
 	end
 
 	-- on_rightclick is a callback function that is called when a player right-click them.
-	function on_rightclick(self, clicker)
+	local function on_rightclick(self, clicker)
 		minetest.show_formspec(
 			clicker:get_player_name(),
 			self.inventory_name,
@@ -296,7 +296,7 @@ function maidroid.register_maidroid(product_name, def)
 	end
 
 	-- on_punch is a callback function that is called when a player punch then.
-	function on_punch(self, puncher, time_from_last_punch, tool_capabilities, dir)
+	local function on_punch(self, puncher, time_from_last_punch, tool_capabilities, dir)
 		if self.pause == true then
 			self.pause = false
 			if self.core_name ~= "" then
diff --git a/maidroid_tool/core_writer.lua b/maidroid_tool/core_writer.lua
index d36d35b..1901b1f 100644
--- a/maidroid_tool/core_writer.lua
+++ b/maidroid_tool/core_writer.lua
@@ -17,7 +17,7 @@
 		},
 	}
 
-	function can_dig(pos, player)
+	local function can_dig(pos, player)
 		local meta = minetest.get_meta(pos)
 		local inventory = meta:get_inventory()
 		return (
@@ -27,7 +27,7 @@
 		)
 	end
 
-	function allow_metadata_inventory_put(pos, listname, index, stack, player)
+	local function allow_metadata_inventory_put(pos, listname, index, stack, player)
 		local meta = minetest.get_meta(pos)
 		local inventory = meta:get_inventory()
 		local itemname = stack:get_name()
@@ -42,7 +42,7 @@
 		return 0
 	end
 
-	function allow_metadata_inventory_move(pos, from_list, from_index, to_list, to_index, count, player)
+	local function allow_metadata_inventory_move(pos, from_list, from_index, to_list, to_index, count, player)
 		local meta = minetest.get_meta(pos)
 		local inventory = meta:get_inventory()
 		local stack = inventory:get_stack(from_list, from_index)
@@ -66,7 +66,7 @@
 			.. "list[current_player;main;0,5;8,1;]"
 			.. "list[current_player;main;0,6.2;8,3;8]"
 
-		function on_construct(pos)
+		local function on_construct(pos)
 			local meta = minetest.get_meta(pos)
 			meta:set_string("formspec", formspec_string)
 
@@ -76,11 +76,11 @@
 			inventory:set_size("dye", 1)
 		end
 
-		function on_metadata_inventory_move(pos)
+		local function on_metadata_inventory_move(pos)
 
 		end
 
-		function allow_metadata_inventory_take(pos, listname, index, stack, player)
+		local function allow_metadata_inventory_take(pos, listname, index, stack, player)
 			return stack:get_count() -- maybe add more.
 		end
 
@@ -125,7 +125,7 @@
 			},
 		}
 
-		function allow_metadata_inventory_take(pos, listname, index, stack, player)
+		local function allow_metadata_inventory_take(pos, listname, index, stack, player)
 			return stack:get_count() -- maybe add more.
 		end
 

From 6f31969aed4f1b3b79a5f373b5395fa4dc13e2a4 Mon Sep 17 00:00:00 2001
From: tacigar <ig.lhound@gmail.com>
Date: Wed, 14 Sep 2016 22:10:40 +0900
Subject: [PATCH 12/13] [UPDATE] Commit before implements on_timer callback

---
 maidroid_tool/core_writer.lua | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/maidroid_tool/core_writer.lua b/maidroid_tool/core_writer.lua
index 1901b1f..0d27ba1 100644
--- a/maidroid_tool/core_writer.lua
+++ b/maidroid_tool/core_writer.lua
@@ -17,6 +17,7 @@
 		},
 	}
 
+	-- can_dig is a common callback for the core writer.
 	local function can_dig(pos, player)
 		local meta = minetest.get_meta(pos)
 		local inventory = meta:get_inventory()
@@ -27,6 +28,12 @@
 		)
 	end
 
+	-- on_timer is a common callback for the core writer.
+	local function on_timer(pos, elapsed)
+
+	end
+
+	-- allow_metadata_inventory_put is a common callback for the core writer.
 	local function allow_metadata_inventory_put(pos, listname, index, stack, player)
 		local meta = minetest.get_meta(pos)
 		local inventory = meta:get_inventory()
@@ -42,6 +49,7 @@
 		return 0
 	end
 
+	-- allow_metadata_inventory_move is a common callback for the core writer.
 	local function allow_metadata_inventory_move(pos, from_list, from_index, to_list, to_index, count, player)
 		local meta = minetest.get_meta(pos)
 		local inventory = meta:get_inventory()
@@ -126,7 +134,10 @@
 		}
 
 		local function allow_metadata_inventory_take(pos, listname, index, stack, player)
-			return stack:get_count() -- maybe add more.
+			if listname == "core" then
+				return 0
+			end
+			return stack:get_count()
 		end
 
 		minetest.register_node("maidroid_tool:core_writer_active", {

From ff9902e96cc3b1fd36300e11e8ac7ebcdc1198ea Mon Sep 17 00:00:00 2001
From: tacigar <ig.lhound@gmail.com>
Date: Wed, 14 Sep 2016 23:07:35 +0900
Subject: [PATCH 13/13] [UPDATE] Update active core writer's front

---
 maidroid_tool/core_writer.lua                 |  22 +++++++++++++++++-
 ...maidroid_tool_core_writer_front_active.png | Bin 0 -> 384 bytes
 ...maidroid_tool_core_writer_front_active.xcf | Bin 0 -> 2447 bytes
 3 files changed, 21 insertions(+), 1 deletion(-)
 create mode 100644 maidroid_tool/textures/maidroid_tool_core_writer_front_active.png
 create mode 100644 maidroid_tool/textures/maidroid_tool_core_writer_front_active.xcf

diff --git a/maidroid_tool/core_writer.lua b/maidroid_tool/core_writer.lua
index 0d27ba1..43c94a2 100644
--- a/maidroid_tool/core_writer.lua
+++ b/maidroid_tool/core_writer.lua
@@ -17,6 +17,13 @@
 		},
 	}
 
+	local selection_box = {
+		type = "fixed",
+		fixed = {
+			{-0.4375, -0.5, -0.4375, 0.4375, 0.25, 0.4375},
+		},
+	}
+
 	-- can_dig is a common callback for the core writer.
 	local function can_dig(pos, player)
 		local meta = minetest.get_meta(pos)
@@ -101,6 +108,7 @@
 			is_ground_content              = false,
 			sounds                         = default.node_sound_stone_defaults(),
 			node_box                       = node_box,
+			selection_box                  = selection_box,
 			tiles                          = tiles,
 			can_dig                        = can_dig,
 			on_construct                   = on_construct,
@@ -119,7 +127,17 @@
 			"maidroid_tool_core_writer_bottom.png",
 			"maidroid_tool_core_writer_right.png",
 			"maidroid_tool_core_writer_right.png^[transformFX",
-			"maidroid_tool_core_writer_front.png^[transformFX",
+			{
+				backface_culling = false,
+				image = "maidroid_tool_core_writer_front_active.png^[transformFX",
+
+				animation = {
+					type      = "vertical_frames",
+					aspect_w  = 16,
+					aspect_h  = 16,
+					length    = 1.5,
+				},
+			},
 			{
 				backface_culling = false,
 				image = "maidroid_tool_core_writer_front_active.png",
@@ -141,6 +159,7 @@
 		end
 
 		minetest.register_node("maidroid_tool:core_writer_active", {
+			description                    = "test",
 			drawtype                       = "nodebox",
 			paramtype                      = "light",
 			paramtype2                     = "facedir",
@@ -148,6 +167,7 @@
 			is_ground_content              = false,
 			sounds                         = default.node_sound_stone_defaults(),
 			node_box                       = node_box,
+			selection_box                  = selection_box,
 			tiles                          = tiles,
 			can_dig                        = can_dig,
 			allow_metadata_inventory_put   = allow_metadata_inventory_put,
diff --git a/maidroid_tool/textures/maidroid_tool_core_writer_front_active.png b/maidroid_tool/textures/maidroid_tool_core_writer_front_active.png
new file mode 100644
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GIT binary patch
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