First commit

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Pierre-Yves Rollo 2015-11-11 14:26:39 +01:00
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.gitignore vendored Normal file

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*~
_*

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README.md Normal file

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# Display Modpack
This modpack provides mods with dynamic display. Mods are :
- **display_lib**: A library for adding display entities to nodes;
- **ontime_clocks**: A mod providing clocks which display the ingame time;
- **signs**: A mod providing signs and direction signs displaying text;

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# Display Lib API
This document describes Display Lib API. Display Lib allows to add a dynamic display on a node. Node must be wallmounted and Display Lib limits its rotation to vertical positions.
## Provided methods
### update\_entities
**display\_lib.update\_entities(pos)**
This method triggers entities update for the display node at pos. Actual entity update is made by **on\_display\_update** callback associated to the entity.
**pos**: Position of the node
### register\_display\_entity
**display\_lib.register\_display\_entity(entity_name)**
This is a helper to register entities used for display.
**entity_name**: Name of the entity to register.
## Provided callback implementations
### on_place
**display\_lib.on\_place(itemstack, placer, pointed\_thing)**
**On_place** node callback implementation. Display nodes should have this callback (avoid placement of horizontal display node).
### on_construct
**display\_lib.on\_construct(pos)**
**On_construct** node callback implementation. Display nodes should have this callback (creates, places and updates display entities on node construction).
### on_destruct
**display\_lib.on_destruct(pos)**
**On_destruct** node callback implementation. Display nodes should have this callback (removes display entities on node destruction).
### on_rotate
**display\_lib.on\_rotate(pos, node, user, mode, new_param2)**
**On_rotate** node callback implementation. Display nodes should have this callback (restricts rotations and rotates display entities associated with node).
### on_activate
**display\_lib.on_activate(entity, staticdata)**
**On_activate** entity callback implementation for display entities. No need of this method if display entities have been registered using **register\_display\_entity** (callback is already set).
## Howto register a display node
* Register display entities with **register\_display\_entity**
* Register node with :
- **on\_place**, **on\_construct**, **on\_destruct** and **on\_rotate** callbacks using **display\_lib** callbacks.
- a **display\_entities** field in node definition containing a entity name indexed table. For each entity, two fields : **depth** indicates the entity position (-0.5 to 0.5) and **on_display_update** is a callback in charge of setting up entity texture.
### Example
display_lib.register_display_entity("mymod:entity1")
display_lib.register_display_entity("mymod:entity2")
function my_display_update1(pos, objref)
objref:set_properties({ textures= {"mytexture1.png"},
visual_size = {x=1, y=1} })
end
function my_display_update2(pos, objref)
objref:set_properties({ textures= {"mytexture2.png"},
visual_size = {x=1, y=1} })
end
minetest.register_node("mymod:test_display_node", {
...
paramtype2 = "wallmounted",
...
display_entities = {
["mymod:entity1"] = { depth = -0.3,
on_display_update = my_display_update1},
["mymod:entity1"] = { depth = -0.2,
on_display_update = my_display_update2},
},
...
on_place = display_lib.on_place,
on_construct = display_lib.on_construct,
on_destruct = display_lib.on_destruct,
on_rotate = display_lib.on_rotate,
...
})

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display_lib/LICENSE.txt Normal file

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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.

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# Dislpay Lib
This library's purpose is to ease creation of wallmounted nodes with a display on front side. For example, signs and clocks. Display can be dynamic and/or different for each node instance.
**Limitations**: This lib uses entities to draw display. This means display has to be vertical. So display nodes are only wallmounted vertically.
**Dependancies**:default
**License**: WTFPL
**API**: See API.md document please.

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default

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display_lib/init.lua Normal file

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-- Display lib mod by P.Y. Rollo
--
-- License: WTFPL
display_lib = {}
-- Miscelaneous values depending on wallmounted param2
local wallmounted_values = {
[0]={dx=0, dz=0, lx=0, lz=0, yaw=0, rotate=0}, -- Should never be used
{dx=1, dz=0, lx=0, lz=0, yaw=0, rotate=1}, -- Should never be used
{dx=1, dz=0, lx=0, lz=-1, yaw=-math.pi/2, rotate=4},
{dx=-1, dz=0, lx=0, lz=1, yaw=math.pi/2, rotate=5},
{dx=0, dz=1, lx=1, lz=0, yaw=0, rotate=3},
{dx=0, dz=-1, lx=-1, lz=0, yaw=math.pi, rotate=2}
}
--- Gets the display entities attached with a node. Removes extra ones
local function get_entities(pos)
local objrefs = {}
local ndef = minetest.registered_nodes[minetest.get_node(pos).name]
if ndef and ndef.display_entities then
for _, objref in ipairs(minetest.get_objects_inside_radius(pos, 0.5)) do
local entity = objref:get_luaentity()
if entity and ndef.display_entities[entity.name] then
if objrefs[entity.name] then
objref:remove()
else
objrefs[entity.name] = objref
end
end
end
end
return objrefs
end
local function clip_pos_prop(posprop)
if posprop then
return math.max(-0.5, math.min(0.5, posprop))
else
return 0
end
end
--- (Create and) place display entities according to the node orientation
local function place_entities(pos)
local node = minetest.get_node(pos)
local ndef = minetest.registered_nodes[node.name]
local values = wallmounted_values[node.param2]
local objrefs = get_entities(pos)
if ndef and ndef.display_entities then
for entity_name, props in pairs(ndef.display_entities) do
local depth = clip_pos_prop(props.depth)
local top = clip_pos_prop(props.top)
local left = clip_pos_prop(props.left)
if not objrefs[entity_name] then
objrefs[entity_name] = minetest.add_entity(pos, entity_name)
end
objrefs[entity_name]:setpos({
x = pos.x - values.dx * depth + values.lx * left,
y = pos.y + top,
z = pos.z - values.dz * depth + values.lz * left})
objrefs[entity_name]:setyaw(values.yaw)
end
end
return objrefs
end
--- Call on_display_update callback of a node for one of its display entities
local function call_node_on_display_update(pos, objref)
local ndef = minetest.registered_nodes[minetest.get_node(pos).name]
local entity = objref:get_luaentity()
if ndef and ndef.display_entities and entity and ndef.display_entities[entity.name] then
ndef.display_entities[entity.name].on_display_update(pos, objref)
end
end
--- Force entity update
function display_lib.update_entities(pos)
local objrefs = place_entities(pos)
for _, objref in pairs(objrefs) do
call_node_on_display_update(pos, objref)
end
end
--- On_activate callback for display_lib entities. Calls on_display_update callbacks
--- of corresponding node for each entity.
function display_lib.on_activate(entity, staticdata)
if entity then
call_node_on_display_update(entity.object:getpos(), entity.object)
end
end
--- On_place callback for display_lib items. Does nothing more than preventing item
--- from being placed on ceiling or ground
function display_lib.on_place(itemstack, placer, pointed_thing)
local above = pointed_thing.above
local under = pointed_thing.under
local dir = {x = under.x - above.x,
y = under.y - above.y,
z = under.z - above.z}
local wdir = minetest.dir_to_wallmounted(dir)
if wdir == 0 or wdir == 1 then
dir = placer:get_look_dir()
dir.y = 0
wdir = minetest.dir_to_wallmounted(dir)
end
return minetest.item_place(itemstack, placer, pointed_thing, wdir)
end
--- On_construct callback for display_lib items. Creates entities and update them.
function display_lib.on_construct(pos)
display_lib.update_entities(pos)
end
--- On_destruct callback for display_lib items. Removes entities.
function display_lib.on_destruct(pos)
local objrefs = get_entities(pos)
for _, objref in pairs(objrefs) do
objref:remove()
end
end
-- On_rotate (screwdriver) callback for display_lib items. Prevents axis rotation and reorients entities.
function display_lib.on_rotate(pos, node, user, mode, new_param2)
if mode ~= screwdriver.ROTATE_FACE then return false end
if wallmounted_values[node.param2] then
minetest.swap_node(pos, {name = node.name, param1 = node.param1, param2 = wallmounted_values[node.param2].rotate})
place_entities(pos)
return true
else
return false
end
end
--- Creates display entity with some fields and the on_activate callback
function display_lib.register_display_entity(entity_name)
if not minetest.registered_entity then
minetest.register_entity(':'..entity_name, {
collisionbox = { 0, 0, 0, 0, 0, 0 },
visual = "upright_sprite",
textures = {},
on_activate = display_lib.on_activate,
})
end
end

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modpack.txt Normal file

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ontime_clocks/LICENSE.txt Normal file

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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.

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ontime_clocks/README.md Normal file

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# Ontime Clocks
This mod provides clocks that display real ingame time.
**Dependancies**: display_lib, default
**License**: WTFPL
## Recipes
**Green and red digital clocks**
- D -
G M G
- - -
G = Glass, D = Dye, M = Mese Crystal, - = Empty
Green dye for green clock, red dye for red clock
**White clock**
S P S
- M -
- - -
P = Paper, S = Steel Ingot, M = Mese Crystal, - = Empty
**Frameless clock**
S D S
- M -
- - -
D = Dye, S = Steel Ingot, M = Mese Crystal, - = Empty
Black dye for black clock, White dye for white clock
**Gold frameless clock**
G - G
- M -
- - -
G = Gold Ingot, M = Mese Crystal, - = Empty

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ontime_clocks/common.lua Normal file

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-- Entity for time display
display_lib.register_display_entity("ontime_clocks:display")
function ontime_clocks.get_h24()
return math.floor(minetest.get_timeofday()*24)%24
end
function ontime_clocks.get_h12()
return math.floor(minetest.get_timeofday()*24)%12
end
function ontime_clocks.get_m12()
return math.floor(minetest.get_timeofday()*288)%12
end
function ontime_clocks.get_digital_properties(color_off, color_on, hour, minute)
return
{
textures={"ontime_clocks_digital_background.png^[colorize:"..color_off
.."^([combine:21x7"
..":0,"..(-7*(math.floor(hour/10))).."=ontime_clocks_digital_digit.png"
..":5,"..(-7*(hour%10)).."=ontime_clocks_digital_digit.png"
..":9,-70=ontime_clocks_digital_digit.png"
..":12,"..(-7*(math.floor(minute/2))).."=ontime_clocks_digital_digit.png"
..":17,"..(-35*(minute%2)).."=ontime_clocks_digital_digit.png"
.."^[colorize:"..color_on..")"},
visual_size = {x=21/32, y=7/32}
}
end
function ontime_clocks.get_needles_properties(color, size, hour, minute)
return
{
textures={"[combine:"..size.."x"..size
..":0,"..(-size*hour).."=ontime_clocks_needle_h"..size..".png"
..":0,"..(-size*minute).."=ontime_clocks_needle_m"..size..".png"
.."^[colorize:"..color},
visual_size = {x=size/64, y=size/64}
}
end

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minetest.register_craft({
output = 'ontime_clocks:green_digital',
recipe = {
{'', 'dye:green', ''},
{'default:glass', 'default:mese_crystal', 'default:glass'},
{'', '', ''},
}
})
minetest.register_craft({
output = 'ontime_clocks:red_digital',
recipe = {
{'', 'dye:red', ''},
{'default:glass', 'default:mese_crystal', 'default:glass'},
{'', '', ''},
}
})
minetest.register_craft({
output = 'ontime_clocks:white',
recipe = {
{'default:steel_ingot', 'default:paper', 'default:steel_ingot'},
{'', 'default:mese_crystal', ''},
{'', '', ''},
}
})
minetest.register_craft({
output = 'ontime_clocks:frameless_black',
recipe = {
{'default:steel_ingot', 'dye:black', 'default:steel_ingot'},
{'', 'default:mese_crystal', ''},
{'', '', ''},
}
})
minetest.register_craft({
output = 'ontime_clocks:frameless_gold',
recipe = {
{'default:gold_ingot', '', 'default:gold_ingot'},
{'', 'default:mese_crystal', ''},
{'', '', ''},
}
})
minetest.register_craft({
output = 'ontime_clocks:frameless_white',
recipe = {
{'default:steel_ingot', 'dye:white', 'default:steel_ingot'},
{'', 'default:mese_crystal', ''},
{'', '', ''},
}
})

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default
display_lib

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-- On time clocks mod by P.Y. Rollo
--
-- License: WTFPL
ontime_clocks = {}
ontime_clocks.path = minetest.get_modpath("ontime_clocks")
dofile(ontime_clocks.path.."/common.lua")
dofile(ontime_clocks.path.."/nodes.lua")
dofile(ontime_clocks.path.."/crafts.lua")

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-- Green digital clock
minetest.register_node("ontime_clocks:green_digital", {
description = "Green digital clock",
inventory_image = "ontime_clocks_green_digital_inventory.png",
wield_image = "ontime_clocks_green_digital_inventory.png",
paramtype = "light",
paramtype2 = "wallmounted",
drawtype = "nodebox",
node_box = {
type = "wallmounted",
wall_side = { -0.5, -3/16, -7/16, -13/32, 7/32, 7/16 },
wall_bottom = { -0.5, -0.5, -0.5, 0.5, 0.5, 0.5 },
wall_top = { -0.5, -0.5, -0.5, 0.5, 0.5, 0.5 }
},
tiles = {"ontime_clocks_digital.png"},
groups = {oddly_breakable_by_hand=1},
display_entities = {
["ontime_clocks:display"] = {
depth = -13/32 + 0.01,
on_display_update = function(pos, objref)
objref:set_properties(
ontime_clocks.get_digital_properties(
"#040", "#0F0", ontime_clocks.get_h24(), ontime_clocks.get_m12()))
end },
},
on_place = display_lib.on_place,
on_construct = display_lib.on_construct,
on_destruct = display_lib.on_destruct,
on_rotate = display_lib.on_rotate,
})
minetest.register_abm({
nodenames = {"ontime_clocks:green_digital"},
interval = 5,
chance = 1,
action = display_lib.update_entities,
})
-- Red digital clock
minetest.register_node("ontime_clocks:red_digital", {
description = "Red digital clock",
inventory_image = "ontime_clocks_red_digital_inventory.png",
wield_image = "ontime_clocks_red_digital_inventory.png",
paramtype = "light",
paramtype2 = "wallmounted",
drawtype = "nodebox",
node_box = {
type = "wallmounted",
wall_side = { -0.5, -3/16, -7/16, -13/32, 7/32, 7/16 },
wall_bottom = { -0.5, -0.5, -0.5, 0.5, 0.5, 0.5 },
wall_top = { -0.5, -0.5, -0.5, 0.5, 0.5, 0.5 }
},
tiles = {"ontime_clocks_digital.png"},
groups = {oddly_breakable_by_hand=1},
display_entities = {
["ontime_clocks:display"] = {
depth = -13/32 + 0.01,
on_display_update = function(pos, objref)
objref:set_properties(
ontime_clocks.get_digital_properties(
"#400", "#F00", ontime_clocks.get_h24(), ontime_clocks.get_m12()))
end },
},
on_place = display_lib.on_place,
on_construct = display_lib.on_construct,
on_destruct = display_lib.on_destruct,
on_rotate = display_lib.on_rotate,
})
minetest.register_abm({
nodenames = {"ontime_clocks:red_digital"},
interval = 5,
chance = 1,
action = display_lib.update_entities,
})
minetest.register_node("ontime_clocks:white", {
description = "White clock",
inventory_image = "ontime_clocks_white_inventory.png",
wield_image = "ontime_clocks_white_inventory.png",
paramtype = "light",
paramtype2 = "wallmounted",
drawtype = "nodebox",
node_box = {
type = "wallmounted",
wall_side = { -0.5, -7/16, -7/16, -6/16, 7/16, 7/16},
wall_bottom = { -7/16, -0.5, -7/16, 7/16, -7/16, 7/16},
wall_top = { -7/16, 0.5, -7/16, 7/16, 7/16, 7/16},
},
tiles = {"ontime_clocks_white.png"},
groups = {choppy=1,oddly_breakable_by_hand=1},
display_entities = {
["ontime_clocks:display"] = {
depth = -6/16+0.01,
on_display_update = function(pos, objref)
objref:set_properties(
ontime_clocks.get_needles_properties(
"#000", 36, ontime_clocks.get_h12(), ontime_clocks.get_m12()))
end },
},
on_place = display_lib.on_place,
on_construct = display_lib.on_construct,
on_destruct = display_lib.on_destruct,
on_rotate = display_lib.on_rotate,
})
minetest.register_abm({
nodenames = {"ontime_clocks:white"},
interval = 5,
chance = 1,
action = display_lib.update_entities,
})
minetest.register_node("ontime_clocks:frameless_black", {
description = "Frameless clock",
inventory_image = "ontime_clocks_frameless_inventory.png",
wield_image = "ontime_clocks_frameless_inventory.png",
paramtype = "light",
paramtype2 = "wallmounted",
drawtype = "nodebox",
node_box = {
type = "wallmounted",
wall_side = { -0.5, -7/16, -7/16, -0.45, 7/16, 7/16 },
wall_bottom = { -0.5, -0.5, -0.5, 0.5, 0.5, 0.5 },
wall_top = { -0.5, -0.5, -0.5, 0.5, 0.5, 0.5 }
},
tiles = {"ontime_clocks_frameless.png"},
groups = {choppy=1,oddly_breakable_by_hand=1},
display_entities = {
["ontime_clocks:display"] = {
depth = -7/16,
on_display_update = function(pos, objref)
objref:set_properties(
ontime_clocks.get_needles_properties(
"#000", 48, ontime_clocks.get_h12(), ontime_clocks.get_m12()))
end },
},
on_place = display_lib.on_place,
on_construct = display_lib.on_construct,
on_destruct = display_lib.on_destruct,
on_rotate = display_lib.on_rotate,
})
minetest.register_abm({
nodenames = {"ontime_clocks:frameless_black"},
interval = 5,
chance = 1,
action = display_lib.update_entities,
})
minetest.register_node("ontime_clocks:frameless_gold", {
description = "Frameless gold clock",
inventory_image = "ontime_clocks_frameless_inventory.png^[colorize:#FF0",
wield_image = "ontime_clocks_frameless_inventory.png^[colorize:#FF0",
paramtype = "light",
paramtype2 = "wallmounted",
drawtype = "nodebox",
node_box = {
type = "wallmounted",
wall_side = { -0.5, -7/16, -7/16, -0.45, 7/16, 7/16 },
wall_bottom = { -0.5, -0.5, -0.5, 0.5, 0.5, 0.5 },
wall_top = { -0.5, -0.5, -0.5, 0.5, 0.5, 0.5 }
},
tiles = {"ontime_clocks_frameless.png^[colorize:#FF0"},
groups = {choppy=1,oddly_breakable_by_hand=1},
display_entities = {
["ontime_clocks:display"] = {
depth = -7/16,
on_display_update = function(pos, objref)
objref:set_properties(
ontime_clocks.get_needles_properties(
"#FF0", 48, ontime_clocks.get_h12(), ontime_clocks.get_m12()))
end },
},
on_place = display_lib.on_place,
on_construct = display_lib.on_construct,
on_destruct = display_lib.on_destruct,
on_rotate = display_lib.on_rotate,
})
minetest.register_abm({
nodenames = {"ontime_clocks:frameless_gold"},
interval = 5,
chance = 1,
action = display_lib.update_entities,
})
minetest.register_node("ontime_clocks:frameless_white", {
description = "Frameless white clock",
inventory_image = "ontime_clocks_frameless_inventory.png^[colorize:#FFF",
wield_image = "ontime_clocks_frameless_inventory.png^[colorize:#FFF",
paramtype = "light",
paramtype2 = "wallmounted",
drawtype = "nodebox",
node_box = {
type = "wallmounted",
wall_side = { -0.5, -7/16, -7/16, -0.45, 7/16, 7/16 },
wall_bottom = { -0.5, -0.5, -0.5, 0.5, 0.5, 0.5 },
wall_top = { -0.5, -0.5, -0.5, 0.5, 0.5, 0.5 }
},
tiles = {"ontime_clocks_frameless.png^[colorize:#FFF"},
groups = {choppy=1,oddly_breakable_by_hand=1},
display_entities = {
["ontime_clocks:display"] = {
depth = -7/16,
on_display_update = function(pos, objref)
objref:set_properties(
ontime_clocks.get_needles_properties(
"#FFF", 48, ontime_clocks.get_h12(), ontime_clocks.get_m12()))
end },
},
on_place = display_lib.on_place,
on_construct = display_lib.on_construct,
on_destruct = display_lib.on_destruct,
on_rotate = display_lib.on_rotate,
})
minetest.register_abm({
nodenames = {"ontime_clocks:frameless_white"},
interval = 5,
chance = 1,
action = display_lib.update_entities,
})

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signs/LICENSE.txt Normal file

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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.

52
signs/README.md Normal file

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# 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

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signs/common.lua Normal file

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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)

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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', ''},
}
})

3
signs/depends.txt Normal file

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default
display_lib

63
signs/font.lua Normal file

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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

15
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-- 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")

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-- 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

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