First commit

115 files changed, 611 insertions, 0 deletions

diff --git a/signs/LICENSE.txt b/signs/LICENSE.txt
new file mode 100644
index 0000000..bc06764
--- /dev/null
+++ b/signs/LICENSE.txt
@@ -0,0 +1,13 @@
+          DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
+                   Version 2, December 2004
+ 
+Copyright (C) 2004 Sam Hocevar <sam@hocevar.net>
+ 
+Everyone is permitted to copy and distribute verbatim or modified
+copies of this license document, and changing it is allowed as long
+as the name is changed.
+ 
+           DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
+  TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+ 
+ 0. You just DO WHAT THE FUCK YOU WANT TO.
diff --git a/signs/README.md b/signs/README.md
new file mode 100644
index 0000000..586dbff
--- /dev/null
+++ b/signs/README.md
@@ -0,0 +1,52 @@
+# Signs
+
+This mod provides various signs with text display. Text is locked if area is protected.
+
+**Dependancies**: display_lib, default
+
+**License**: WTFPL
+
+## Recipes
+
+**Blue Street Sign**
+
+		B W S
+		S S S
+		- - -
+
+B = Blue Dye, W = White Dye, S = Steel Ingot
+
+**Green Street Sign**
+
+		G W S
+		S S S 
+		- - -
+
+G = Green Dye, W = White Dye, S = Steel Ingot
+
+**Poster**
+
+		P P -
+		P P -
+		P P -
+
+P = Paper
+
+Poster displays only title, much more text can be read by right-clicking on it.
+
+**Wooden direction sigh**
+
+		W W W
+		W W -
+		- - -
+
+W = Wooden Plank (group)
+
+**Black direction sign**
+
+		B W S
+		S S -
+		- - -
+
+B = Black Dye, W = White Dye, S = Steel Ingot
+
diff --git a/signs/common.lua b/signs/common.lua
new file mode 100644
index 0000000..0433223
--- /dev/null
+++ b/signs/common.lua
@@ -0,0 +1,217 @@
+local font = {}
+signs.font_height = 10
+
+-- Get png width, suposing png width is less than 256 (it is the case for all font textures)
+local function get_png_width(filename)
+	local file=assert(io.open(filename,"rb"))
+	-- All font png are smaller than 256x256 --> read only last byte
+	file:seek("set",19)
+	local w = file:read(1)
+	file:close()
+	return w:byte()
+end
+
+-- Computes line width for a given font height and text
+function signs.get_line_width(text)
+	local char
+	local width = 0
+
+	for p=1,#text
+	do
+		char = text:sub(p,p):byte()
+		if font[char] then
+			width = width + font[char].width
+		end
+	end
+
+	return width
+end
+
+--- Builds texture part for a text line
+-- @param text Text to be rendered
+-- @param x Starting x position in texture
+-- @param width Width of the texture (extra text is not rendered)
+-- @param y Vertical position of the line in texture
+-- @return Texture string
+function signs.make_line_texture(text, x, width, y)
+	local char
+
+	local texture = ""
+
+	for p=1,#text
+	do
+		char = text:sub(p,p):byte()
+		if font[char] then
+			-- Add image only if it is visible (at least partly)
+			if x + font[char].width >= 0 and x <= width then
+				texture = texture..string.format(":%d,%d=%s", x, y, font[char].filename)
+			end
+			x = x + font[char].width
+		end
+	end
+	return texture
+end
+
+local function split_lines(text, maxlines)
+	local splits = text:split("\n")
+	if maxlines then
+		local lines = {}
+		for num = 1,maxlines do
+			lines[num] = splits[num]
+		end
+		return lines
+	else
+		return splits
+	end
+end
+
+function signs.on_display_update(pos, objref)
+	local meta = minetest.get_meta(pos)
+	local text = meta:get_string("display_text")
+
+	local ndef = minetest.registered_nodes[minetest.get_node(pos).name]
+	if ndef and ndef.sign_model then
+		local model = signs.sign_models[ndef.sign_model]
+		local lines = split_lines(text, model.maxlines)
+
+		local texturew = model.width/model.xscale
+		local textureh = model.height/model.yscale
+
+		local texture = ""
+
+		local y
+		if model.valing == "top" then
+			y = signs.font_height / 2
+		else		
+			y = (textureh - signs.font_height * #lines) / 2 + 1 
+		end
+
+		for _, line in pairs(lines) do
+			texture = texture..signs.make_line_texture(line, 
+				(texturew - signs.get_line_width(line)) / 2, 
+				texturew, y)
+			y = y + signs.font_height
+		end
+
+		local texture = string.format("[combine:%dx%d", texturew, textureh)..texture
+		if model.color then texture = texture.."^[colorize:"..model.color end
+
+		objref:set_properties({ textures={texture}, visual_size = {x=model.width, y=model.height}})
+	end
+end
+
+function signs.set_formspec(pos)
+	local meta = minetest.get_meta(pos)
+	local ndef = minetest.registered_nodes[minetest.get_node(pos).name]
+	if ndef and ndef.sign_model then
+		local model = signs.sign_models[ndef.sign_model]
+		local formspec
+
+		if model.maxlines == 1 then
+			formspec = "size[6,3]"..
+				"field[0.5,0.7;5.5,1;display_text;Displayed text;${display_text}]"..
+				"button_exit[2,2;2,1;ok;Write]"
+		else
+			local extralabel = ""
+			if model.maxlines then
+				extralabel = " (first "..model.maxlines.." lines only)"
+			end
+
+			formspec = "size[6,4]"..
+				"textarea[0.5,0.7;5.5,2;display_text;Displayed text"..extralabel..";${display_text}]"..
+				"button_exit[2,3;2,1;ok;Write]"
+		end
+
+		meta:set_string("formspec", formspec)
+	end
+end
+
+function signs.on_receive_fields(pos, formname, fields, player)
+	if not minetest.is_protected(pos, player:get_player_name()) then
+		local meta = minetest.get_meta(pos)
+		if fields and fields.ok then
+			meta:set_string("display_text", fields.display_text)
+			meta:set_string("infotext", "\""..fields.display_text.."\"")
+			display_lib.update_entities(pos)
+		end
+	end
+end
+
+-- On place callback for direction signs 
+-- (chooses which sign according to look direction)
+function signs.on_place_direction(itemstack, placer, pointed_thing)
+	local above = pointed_thing.above
+	local under = pointed_thing.under
+	local wdir = minetest.dir_to_wallmounted(
+				{x = under.x - above.x,
+				 y = under.y - above.y,
+				 z = under.z - above.z})
+	
+	local dir = placer:get_look_dir()
+
+	if wdir == 0 or wdir == 1 then
+		wdir = minetest.dir_to_wallmounted({x=dir.x, y=0, z=dir.z})
+	end
+
+	local name = itemstack:get_name()
+
+	-- Only for direction signs (ending with _right)
+	if name:sub(-string.len("_right")) == "_right" then
+		name = name:sub(1, -string.len("_right"))
+
+		local test = {0, dir.z, -dir.z, -dir.x, dir.x}
+		if test[wdir] > 0 then
+			itemstack:set_name(name.."left")
+		end
+		itemstack = minetest.item_place(itemstack, placer, pointed_thing, wdir)
+		itemstack:set_name(name.."right")
+
+		return itemstack
+	else
+		return minetest.item_place(itemstack, placer, pointed_thing, wdir)
+	end
+end
+
+-- On_rotate (screwdriver) callback for direction signs
+function signs.on_rotate_direction(pos, node, user, mode, new_param2)
+	if mode == screwdriver.ROTATE_AXIS then 
+		local name
+		if node.name:sub(-string.len("_right")) == "_right" then
+			name = node.name:sub(1, -string.len("_right")).."left"
+		end
+		if node.name:sub(-string.len("_left")) == "_left" then
+			name = node.name:sub(1, -string.len("_left")).."right"
+		end
+
+		if name then
+			minetest.swap_node(pos, {name = name, param1 = node.param1, param2 = node.param2})
+		end
+		return false
+	else
+		return display_lib.on_rotate(pos, node, user, mode, new_param2)
+	end
+end
+
+-- Populate fonts table
+local w, filename
+for charnum=32,126 do
+	filename = string.format("signs_%02x.png", charnum)
+	w = get_png_width(signs.path.."/textures/"..filename)
+	font[charnum] = {filename=filename, width=w}
+end
+
+-- Generic callback for show_formspec displayed formspecs
+minetest.register_on_player_receive_fields(function(player, formname, fields)
+	local found, mod, node_name, pos
+	found, _, mod, node_name, pos = formname:find("([%w_]+):([%w_]+)@(.+)")
+
+	if found then
+		if mod ~= 'signs' then return end
+
+		local ndef = minetest.registered_nodes[mod..":"..node_name]
+
+		if ndef and ndef.on_receive_fields then
+			ndef.on_receive_fields(minetest.string_to_pos(pos), formname, fields, player)
+		end
+	end
+end)
diff --git a/signs/crafts.lua b/signs/crafts.lua
new file mode 100644
index 0000000..16b873d
--- /dev/null
+++ b/signs/crafts.lua
@@ -0,0 +1,45 @@
+minetest.register_craft({
+	output = 'signs:blue_street',
+	recipe = {
+		{'dye:blue', 'dye:white', 'default:steel_ingot'},
+		{'default:steel_ingot', 'default:steel_ingot', 'default:steel_ingot'},
+		{'', '', ''},
+	}
+})
+
+minetest.register_craft({
+	output = 'signs:green_street',
+	recipe = {
+		{'dye:green', 'dye:white', 'default:steel_ingot'},
+		{'default:steel_ingot', 'default:steel_ingot', 'default:steel_ingot'},
+		{'', '', ''},
+	}
+})
+
+minetest.register_craft({
+	output = 'signs:wooden_right',
+	recipe = {
+		{'group:wood', 'group:wood', 'group:wood'},
+		{'group:wood', 'group:wood', ''},
+		{'', '', ''},
+	}
+})
+
+minetest.register_craft({
+	output = 'signs:black_right',
+	recipe = {
+		{'dye:black', 'dye:white', 'default:steel_ingot'},
+		{'default:steel_ingot', 'default:steel_ingot', ''},
+		{'', '', ''},
+	}
+})
+
+minetest.register_craft({
+	output = 'signs:poster',
+	recipe = {
+		{'default:paper', 'default:paper', ''},
+		{'default:paper', 'default:paper', ''},
+		{'default:paper', 'default:paper', ''},
+	}
+})
+
diff --git a/signs/depends.txt b/signs/depends.txt
new file mode 100644
index 0000000..c1feb90
--- /dev/null
+++ b/signs/depends.txt
@@ -0,0 +1,3 @@
+default
+display_lib
+
diff --git a/signs/font.lua b/signs/font.lua
new file mode 100644
index 0000000..2da6611
--- /dev/null
+++ b/signs/font.lua
@@ -0,0 +1,63 @@
+
+local font = {}
+signs.font_height = 10
+
+-- Get png width, suposing png width is less than 256 (it is the case for all font textures)
+local function get_png_width(filename)
+	local file=assert(io.open(filename,"rb"))
+	-- All font png are smaller than 256x256 --> read only last byte
+	file:seek("set",19)
+	local w = file:read(1)
+	file:close()
+	return w:byte()
+end
+
+-- Computes line width for a given font height and text
+function signs.get_line_width(text)
+	local char
+	local width = 0
+
+	for p=1,#text
+	do
+		char = text:sub(p,p):byte()
+		if font[char] then
+			width = width + font[char].width
+		end
+	end
+
+	return width
+end
+
+--- Builds texture part for a text line
+-- @param text Text to be rendered
+-- @param x Starting x position in texture
+-- @param width Width of the texture (extra text is not rendered)
+-- @param y Vertical position of the line in texture
+-- @return Texture string
+function signs.make_line_texture(text, x, width, y)
+	local char
+
+	local texture = ""
+
+	for p=1,#text
+	do
+		char = text:sub(p,p):byte()
+		if font[char] then
+			-- Add image only if it is visible (at least partly)
+			if x + font[char].width >= 0 and x <= width then
+				texture = texture..string.format(":%d,%d=%s", x, y, font[char].filename)
+			end
+			x = x + font[char].width
+		end
+	end
+	return texture
+end
+
+-- Populate fonts table
+local w, filename
+for charnum=32,126 do
+	filename = string.format("signs_%02x.png", charnum)
+	w = get_png_width(signs.path.."/textures/"..filename)
+	font[charnum] = {filename=filename, width=w}
+end
+
diff --git a/signs/init.lua b/signs/init.lua
new file mode 100644
index 0000000..81d3a5b
--- /dev/null
+++ b/signs/init.lua
@@ -0,0 +1,15 @@
+-- Signs mod by P.Y. Rollo
+--
+-- License: WTFPL
+
+signs = {}
+signs.path = minetest.get_modpath("signs")
+
+dofile(signs.path.."/common.lua")
+dofile(signs.path.."/nodes.lua")
+dofile(signs.path.."/crafts.lua")
+
+
+
+
+
diff --git a/signs/nodes.lua b/signs/nodes.lua
new file mode 100644
index 0000000..77d8925
--- /dev/null
+++ b/signs/nodes.lua
@@ -0,0 +1,203 @@
+-- Poster specific formspec
+local function on_rightclick_poster(pos, node, player)
+	local formspec
+	local meta = minetest.get_meta(pos)
+	if not minetest.is_protected(pos, player:get_player_name()) then
+		formspec =
+			"size[6.5,7.5]"..
+			"field[0.5,0.7;6,1;display_text;Title;"..minetest.formspec_escape(meta:get_string("display_text")).."]"..
+			"textarea[0.5,1.7;6,6;text;Text;"..minetest.formspec_escape(meta:get_string("text")).."]"..
+			"button_exit[2,7;2,1;ok;Write]"
+		minetest.show_formspec(player:get_player_name(),
+			"signs:poster@"..minetest.pos_to_string(pos),
+			formspec)
+	else
+		formspec = "size[8,9]"..
+			"size[6.5,7.5]"..
+			"label[0.5,0;"..minetest.formspec_escape(meta:get_string("display_text")).."]"..
+			"textarea[0.5,1;6,7;;"..minetest.formspec_escape(meta:get_string("text"))..";]"..
+			"bgcolor[#111]"..
+			"button_exit[2,7;2,1;ok;Close]"
+		minetest.show_formspec(player:get_player_name(),
+			"",
+			formspec)
+	end
+
+end
+
+-- Poster specific on_receive_fields callback
+local function on_receive_fields_poster(pos, formname, fields, player)
+	local meta = minetest.get_meta(pos)
+	if not minetest.is_protected(pos, player:get_player_name()) then
+		if fields and fields.ok then
+			meta:set_string("display_text", fields.display_text)
+			meta:set_string("text", fields.text)
+			meta:set_string("infotext", "\""..fields.display_text
+					.."\"\n(right-click to read more text)")
+			display_lib.update_entities(pos)
+		end
+	end
+end
+
+signs.sign_models = {
+	blue_street={
+		depth=1/16,
+		width=14/16,
+		height=12/16,
+		color="#fff",
+		maxlines = 3,
+		xscale = 1/144,
+		yscale = 1/64,
+		fields = {
+			description="Blue street sign",
+			tiles={"signs_blue_street.png"},
+			inventory_image="signs_blue_street_inventory.png",
+		},
+	},
+	green_street={
+		depth=1/32,
+		width=1,
+		height=6/16,
+		color="#fff",
+		maxlines = 1,
+		xscale = 1/96,
+		yscale = 1/64,
+		fields = {
+			description="Green street sign",
+			tiles={"signs_green_street.png"},
+			inventory_image="signs_green_street_inventory.png",
+		},
+	},
+	wooden_right={
+		depth=1/16,
+		width=14/16,
+		height=7/16,
+		color="#000",
+		maxlines = 2,
+		xscale = 1/112,
+		yscale = 1/64,
+		fields = {
+			description="Wooden direction sign",
+			tiles={"signs_wooden_right.png"},
+			inventory_image="signs_wooden_inventory.png",
+			on_place=signs.on_place_direction,
+			on_rotate=signs.on_rotate_direction,
+
+		},
+	},
+	wooden_left={
+		depth=1/16,
+		width=14/16,
+		height=7/16,
+		color="#000",
+		maxlines = 2,
+		xscale = 1/112,
+		yscale = 1/64,
+		fields = {
+			description="Wooden direction sign",
+			tiles={"signs_wooden_left.png"},
+			inventory_image="signs_wooden_inventory.png",
+			groups={choppy=1,oddly_breakable_by_hand=1,not_in_creative_inventory=1},
+			drop="signs:wooden_right",
+			on_place=signs.on_place_direction,
+			on_rotate=signs.on_rotate_direction,
+		},
+	},
+	black_right={
+		depth=1/32,
+		width=1,
+		height=0.5,
+		color="#000",
+		maxlines = 1,
+		xscale = 1/96,
+		yscale = 1/64,
+		fields = {
+			description="Black direction sign",
+			tiles={"signs_black_right.png"},
+			inventory_image="signs_black_inventory.png",
+			on_place=signs.on_place_direction,
+			on_rotate=signs.on_rotate_direction,
+		},
+	},
+	black_left={
+		depth=1/32,
+		width=1,
+		height=0.5,
+		color="#000",
+		maxlines = 1,
+		xscale = 1/96,
+		yscale = 1/64,
+		fields = {
+			description="Black direction sign",
+			tiles={"signs_black_left.png"},
+			inventory_image="signs_black_inventory.png",
+			groups={choppy=1,oddly_breakable_by_hand=1,not_in_creative_inventory=1},
+			drop="signs:black_right",
+			on_place=signs.on_place_direction,
+			on_rotate=signs.on_rotate_direction,
+		},
+	},
+	poster={
+		depth=1/32,
+		width=26/32,
+		height=30/32,
+		color="#000",
+		valing="top",
+		maxlines = 1,
+		xscale = 1/144,
+		yscale = 1/64,
+		fields = {
+			description="Poster",
+			tiles={"signs_poster.png"},
+			inventory_image="signs_poster_inventory.png",
+			on_construct=display_lib.on_construct,
+			on_rightclick=on_rightclick_poster,
+			on_receive_fields=on_receive_fields_poster,
+		},
+	},
+}
+
+display_lib.register_display_entity("signs:text")
+
+for model_name, model in pairs(signs.sign_models)
+do
+	local fields = {
+		sunlight_propagates = true,
+		paramtype = "light",
+		paramtype2 = "wallmounted",
+		drawtype = "nodebox",
+		node_box = {
+			type = "wallmounted",
+			wall_side = {-0.5, -model.height/2, -model.width/2, 
+					     -0.5 + model.depth, model.height/2, model.width/2},
+			wall_bottom = {-model.width/2, -0.5, -model.height/2,
+						   model.width/2, -0.5 + model.depth, model.height/2},
+			wall_top = {-model.width/2, 0.5, -model.height/2,
+						   model.width/2, 0.5 - model.depth, model.height/2}, 
+		},
+		groups = {choppy=1,oddly_breakable_by_hand=1},
+		sign_model = model_name,
+		display_entities = { 
+			["signs:text"] = {
+					depth = model.depth-0.499,
+					on_display_update = signs.on_display_update },
+		},
+		on_place = display_lib.on_place,
+		on_construct = 	function(pos)
+							signs.set_formspec(pos)
+							display_lib.on_construct(pos)
+						end,
+		on_destruct = display_lib.on_destruct,
+		on_rotate = display_lib.on_rotate,
+		on_receive_fields = signs.on_receive_fields,
+	}
+
+	for key, value in pairs(model.fields) do
+		fields[key] = value
+	end
+
+	if not fields.wield_image then fields.wield_image = fields.inventory_image end
+
+	minetest.register_node("signs:"..model_name, fields)
+end
+
diff --git a/signs/textures/signs_20.png b/signs/textures/signs_20.png
new file mode 100644
index 0000000..43df9d1
--- /dev/null
+++ b/signs/textures/signs_20.png
diff --git a/signs/textures/signs_21.png b/signs/textures/signs_21.png
new file mode 100644
index 0000000..b927105
--- /dev/null
+++ b/signs/textures/signs_21.png
diff --git a/signs/textures/signs_22.png b/signs/textures/signs_22.png
new file mode 100644
index 0000000..fae7109
--- /dev/null
+++ b/signs/textures/signs_22.png
diff --git a/signs/textures/signs_23.png b/signs/textures/signs_23.png
new file mode 100644
index 0000000..0995756
--- /dev/null
+++ b/signs/textures/signs_23.png
diff --git a/signs/textures/signs_24.png b/signs/textures/signs_24.png
new file mode 100644
index 0000000..18b37d9
--- /dev/null
+++ b/signs/textures/signs_24.png
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