Added facedir node support to display_lib, created font_lib, updated mods accordingly

110 files changed, 114 insertions, 354 deletions

diff --git a/signs/README.md b/signs/README.md
index f85018f..8e38019 100644
--- a/signs/README.md
+++ b/signs/README.md
@@ -2,29 +2,19 @@
 
 This mod provides various signs with text display. Text is locked if area is protected.
 
-**Dependancies**: display_lib, default
+**Dependancies**: default, display\_lib, font\_lib
 
 **License**: WTFPL
 
-(Font taken from VanessaE's homedecor/signs_lib)
-
 ## Recipes
 
-**Blue Street Sign**
-
-		B W S
-		S S S
-		- - -
-
-B = Blue Dye, W = White Dye, S = Steel Ingot
-
-**Green Street Sign**
+**Sign** (overrides default sign)
 
-		G W S
-		S S S 
-		- - -
+		W W W
+		W W W
+		- S -
 
-G = Green Dye, W = White Dye, S = Steel Ingot
+W = Wooden Plank, S = Stick
 
 **Poster**
 
@@ -44,11 +34,3 @@ Poster displays only title, much more text can be read by right-clicking on it.
 
 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
index 7ae420c..24286b9 100644
--- a/signs/common.lua
+++ b/signs/common.lua
@@ -1,120 +1,18 @@
-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]
+	if ndef and ndef.display_entities and ndef.display_entities["signs:text"] then
+		local maxlines = ndef.display_entities["signs:text"].maxlines
 		local formspec
 
-		if model.maxlines == 1 then
+		if 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)"
+			if maxlines then
+				extralabel = " (first "..maxlines.." lines only)"
 			end
 
 			formspec = "size[6,4]"..
@@ -192,14 +90,6 @@ function signs.on_rotate_direction(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 = formname:find("([%w_]+):([%w_]+)@(.+)")
@@ -214,3 +104,56 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
 		end
 	end
 end)
+
+function signs.register_sign(mod, name, model)
+	-- Default fields
+	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=2,dig_immediate=2,attached_node=1},
+		sounds = default.node_sound_defaults(),
+		display_entities = {
+			["signs:text"] = {
+					on_display_update = font_lib.on_display_update,
+					depth = 0.499 - model.depth,
+					size = { x = 1, y = 1 },
+					resolution = { x = 64, y = 64 },
+					maxlines = 1,
+			},
+
+		},
+		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,
+	}
+
+	-- Node fields override
+	for key, value in pairs(model.node_fields) do
+		fields[key] = value
+	end
+
+	if not fields.wield_image then fields.wield_image = fields.inventory_image end
+
+	-- Entity fields override
+	for key, value in pairs(model.entity_fields) do
+		fields.display_entities["signs:text"][key] = value
+	end
+
+	minetest.register_node(mod..":"..name, fields)
+end
diff --git a/signs/crafts.lua b/signs/crafts.lua
index 16b873d..2d90e52 100644
--- a/signs/crafts.lua
+++ b/signs/crafts.lua
@@ -1,22 +1,4 @@
 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'},
@@ -26,15 +8,6 @@ minetest.register_craft({
 })
 
 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', ''},
diff --git a/signs/depends.txt b/signs/depends.txt
index c1feb90..a5e20d4 100644
--- a/signs/depends.txt
+++ b/signs/depends.txt
@@ -1,3 +1,3 @@
 default
 display_lib
-
+font_lib
diff --git a/signs/font.lua b/signs/font.lua
deleted file mode 100644
index 2da6611..0000000
--- a/signs/font.lua
+++ /dev/null
@@ -1,63 +0,0 @@
-
-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/nodes.lua b/signs/nodes.lua
index 77d8925..0c23c5e 100644
--- a/signs/nodes.lua
+++ b/signs/nodes.lua
@@ -39,44 +39,21 @@ local function on_receive_fields_poster(pos, formname, fields, player)
 	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",
-		},
-	},
+-- Text entity for all signs
+display_lib.register_display_entity("signs:text")
+
+-- Sign models and registration
+local models = {
 	wooden_right={
 		depth=1/16,
-		width=14/16,
-		height=7/16,
-		color="#000",
-		maxlines = 2,
-		xscale = 1/112,
-		yscale = 1/64,
-		fields = {
+		width = 14/16,
+		height = 7/16,
+		entity_fields = {
+			resolution = { x = 112, y = 64 },
+			maxlines = 2,
+			color="#000",
+		},
+		node_fields = {
 			description="Wooden direction sign",
 			tiles={"signs_wooden_right.png"},
 			inventory_image="signs_wooden_inventory.png",
@@ -87,13 +64,14 @@ signs.sign_models = {
 	},
 	wooden_left={
 		depth=1/16,
-		width=14/16,
-		height=7/16,
-		color="#000",
-		maxlines = 2,
-		xscale = 1/112,
-		yscale = 1/64,
-		fields = {
+		width = 14/16,
+		height = 7/16,
+		entity_fields = {
+			resolution = { x = 112, y = 64 },
+			maxlines = 2,
+			color="#000",
+		},
+		node_fields = {
 			description="Wooden direction sign",
 			tiles={"signs_wooden_left.png"},
 			inventory_image="signs_wooden_inventory.png",
@@ -103,50 +81,17 @@ signs.sign_models = {
 			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 = {
+		width = 26/32,
+		height = 30/32,
+		entity_fields = {
+			resolution = { x = 144, y = 64 },
+			maxlines = 1,
+			color="#000",
+			valign="top",
+		},
+		node_fields = {
 			description="Poster",
 			tiles={"signs_poster.png"},
 			inventory_image="signs_poster_inventory.png",
@@ -157,47 +102,27 @@ signs.sign_models = {
 	},
 }
 
-display_lib.register_display_entity("signs:text")
 
-for model_name, model in pairs(signs.sign_models)
+for name, model in pairs(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}, 
+	signs.register_sign("signs", name, model)
+end
+
+-- Override default sign
+signs.register_sign(":default", "sign_wall", {
+		depth = 1/16,
+		width = 14/16,
+		height = 10/16,
+		entity_fields = {
+			size = { x = 12/16, y = 8/16 },
+			resolution = { x = 144, y = 64 },
+			maxlines = 3,
+			color="#000",
 		},
-		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 },
+		node_fields = {
+			description="Sign",
+			tiles={"signs_default.png"},
+			inventory_image="signs_default_inventory.png",
 		},
-		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
deleted file mode 100644
index 43df9d1..0000000
--- a/signs/textures/signs_20.png
+++ /dev/null
diff --git a/signs/textures/signs_21.png b/signs/textures/signs_21.png
deleted file mode 100644
index b927105..0000000
--- a/signs/textures/signs_21.png
+++ /dev/null
diff --git a/signs/textures/signs_22.png b/signs/textures/signs_22.png
deleted file mode 100644
index fae7109..0000000
--- a/signs/textures/signs_22.png
+++ /dev/null
diff --git a/signs/textures/signs_23.png b/signs/textures/signs_23.png
deleted file mode 100644
index 0995756..0000000
--- a/signs/textures/signs_23.png
+++ /dev/null
diff --git a/signs/textures/signs_24.png b/signs/textures/signs_24.png
deleted file mode 100644
index 18b37d9..0000000
--- a/signs/textures/signs_24.png
+++ /dev/null
diff --git a/signs/textures/signs_25.png b/signs/textures/signs_25.png
deleted file mode 100644
index 83737d3..0000000
--- a/signs/textures/signs_25.png
+++ /dev/null
diff --git a/signs/textures/signs_26.png b/signs/textures/signs_26.png
deleted file mode 100644
index 94357c4..0000000
--- a/signs/textures/signs_26.png
+++ /dev/null
diff --git a/signs/textures/signs_27.png b/signs/textures/signs_27.png
deleted file mode 100644
index cd4426c..0000000
--- a/signs/textures/signs_27.png
+++ /dev/null
diff --git a/signs/textures/signs_28.png b/signs/textures/signs_28.png
deleted file mode 100644
index 66fd16e..0000000
--- a/signs/textures/signs_28.png
+++ /dev/null
diff --git a/signs/textures/signs_29.png b/signs/textures/signs_29.png
deleted file mode 100644
index 324d1d2..0000000
--- a/signs/textures/signs_29.png
+++ /dev/null
diff --git a/signs/textures/signs_2a.png b/signs/textures/signs_2a.png
deleted file mode 100644
index 27bafea..0000000
--- a/signs/textures/signs_2a.png
+++ /dev/null
diff --git a/signs/textures/signs_2b.png b/signs/textures/signs_2b.png
deleted file mode 100644
index 28a8c7f..0000000
--- a/signs/textures/signs_2b.png
+++ /dev/null
diff --git a/signs/textures/signs_2c.png b/signs/textures/signs_2c.png
deleted file mode 100644
index 16bf1e4..0000000
--- a/signs/textures/signs_2c.png
+++ /dev/null
diff --git a/signs/textures/signs_2d.png b/signs/textures/signs_2d.png
deleted file mode 100644
index b555ad6..0000000
--- a/signs/textures/signs_2d.png
+++ /dev/null
diff --git a/signs/textures/signs_2e.png b/signs/textures/signs_2e.png
deleted file mode 100644
index cdfa677..0000000
--- a/signs/textures/signs_2e.png
+++ /dev/null
diff --git a/signs/textures/signs_2f.png b/signs/textures/signs_2f.png
deleted file mode 100644
index e76fdf4..0000000
--- a/signs/textures/signs_2f.png
+++ /dev/null
diff --git a/signs/textures/signs_30.png b/signs/textures/signs_30.png
deleted file mode 100644
index 5a57af3..0000000
--- a/signs/textures/signs_30.png
+++ /dev/null
diff --git a/signs/textures/signs_31.png b/signs/textures/signs_31.png
deleted file mode 100644
index 3b8ebf0..0000000
--- a/signs/textures/signs_31.png
+++ /dev/null
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