mirror of
https://github.com/sys4-fr/server-nalc.git
synced 2024-11-12 05:20:32 +01:00
442 lines
12 KiB
Lua
Executable File
442 lines
12 KiB
Lua
Executable File
-- painting - in-game painting for minetest
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-- THIS MOD CODE AND TEXTURES LICENSED
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-- <3 TO YOU <3
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-- UNDER TERMS OF WTFPL LICENSE
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-- 2012, 2013, 2014 obneq aka jin xi
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-- picture is drawn using a nodebox to draw the canvas
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-- and an entity which has the painting as its texture.
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-- this texture is created by minetests internal image
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-- compositing engine (see tile.cpp).
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dofile(minetest.get_modpath("painting").."/crafts.lua")
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textures = {
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white = "white.png", yellow = "yellow.png",
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orange = "orange.png", red = "red.png",
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violet = "violet.png", blue = "blue.png",
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green = "green.png", magenta = "magenta.png",
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cyan = "cyan.png", grey = "grey.png",
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darkgrey = "darkgrey.png", black = "black.png",
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darkgreen = "darkgreen.png", brown="brown.png",
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pink = "pink.png"
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}
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local colors = {}
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local revcolors = {}
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thickness = 0.1
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-- picture node
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picbox = {
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type = "fixed",
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fixed = { -0.499, -0.499, 0.499, 0.499, 0.499, 0.499 - thickness }
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}
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picnode = {
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description = "Picture",
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tiles = { "white.png" },
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inventory_image = "painted.png",
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drawtype = "nodebox",
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sunlight_propagates = true,
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paramtype = "light",
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paramtype2 = "facedir",
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node_box = picbox,
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selection_box = picbox,
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groups = { snappy = 2, choppy = 2, oddly_breakable_by_hand = 2, not_in_creative_inventory=1},
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--handle that right below, don't drop anything
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drop = "",
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after_dig_node=function(pos, oldnode, oldmetadata, digger)
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--find and remove the entity
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local objects = minetest.env:get_objects_inside_radius(pos, 0.5)
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for _, e in ipairs(objects) do
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if e:get_luaentity().name == "painting:picent" then
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e:remove()
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end
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end
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--put picture data back into inventory item
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local data = oldmetadata.fields["painting:picturedata"]
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local item = { name = "painting:paintedcanvas", count = 1, metadata = data }
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digger:get_inventory():add_item("main", item)
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end
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}
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-- picture texture entity
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picent = {
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collisionbox = { 0, 0, 0, 0, 0, 0 },
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visual = "upright_sprite",
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textures = { "white.png" },
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on_activate = function(self, staticdata)
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local pos = self.object:getpos()
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local meta = minetest.env:get_meta(pos)
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local data = meta:get_string("painting:picturedata")
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data = minetest.deserialize(data)
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if not data.grid then return end
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self.object:set_properties({textures = { to_imagestring(data.grid, data.res) }})
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end
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}
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paintbox = { [0] = { -0.5,-0.5,0,0.5,0.5,0 },
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[1] = { 0,-0.5,-0.5,0,0.5,0.5 } }
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paintent = {
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collisionbox = { 0, 0, 0, 0, 0, 0 },
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visual = "upright_sprite",
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textures = { "white.png" },
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on_punch = function(self, puncher, time_from_last_punch, tool_capabilities, dir)
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--check for brush
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local name = puncher:get_wielded_item():get_name()
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name = string.split(name, "_")[2]
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if not textures[name] then return end
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--get player eye level
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--see player.h line 129
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local ppos = puncher:getpos()
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ppos = { x = ppos.x, y = ppos.y + 1.625, z = ppos.z }
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local pos = self.object:getpos()
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local l = puncher:get_look_dir()
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local d = dirs[self.fd]
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local od = dirs[(self.fd + 1) % 4]
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local normal = { x = d.x, y = 0, z = d.z }
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local p = intersect(ppos, l, pos, normal)
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local off = -0.5
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pos = { x = pos.x + off * od.x, y = pos.y + off, z = pos.z + off * od.z }
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p = sub(p, pos)
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local x = math.abs(p.x + p.z)
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local y = 1 - p.y
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--print("x: "..x.." y: "..y)
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x = math.floor(x / (1/self.res) )
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y = math.floor(y / (1/self.res) )
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--print("grid x: "..x.." grid y: "..y)
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x = clamp(x, self.res)
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y = clamp(y, self.res)
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self.grid[x][y] = colors[name]
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self.object:set_properties({textures = { to_imagestring(self.grid, self.res) }})
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local wielded = puncher:get_wielded_item()
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wielded:add_wear(65535/256)
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puncher:set_wielded_item(wielded)
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end,
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on_activate = function(self, staticdata)
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local data = minetest.deserialize(staticdata)
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if not data then return end
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self.fd = data.fd
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self.res = data.res
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self.grid = data.grid
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self.object:set_properties({ textures = { to_imagestring(self.grid, self.res) }})
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self.object:set_properties({ collisionbox = paintbox[self.fd%2] })
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self.object:set_armor_groups({immortal=1})
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end,
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get_staticdata = function(self)
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local data = { fd = self.fd, res = self.res, grid = self.grid }
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return minetest.serialize(data)
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end
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}
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-- just pure magic
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local walltoface = {-1, -1, 1, 3, 0, 2}
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--paintedcanvas picture inventory item
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paintedcanvas = {
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description = "Painted Canvas",
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inventory_image = "painted.png",
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stack_max = 1,
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groups = { snappy = 2, choppy = 2, oddly_breakable_by_hand = 2, not_in_creative_inventory=1 },
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on_place = function(itemstack, placer, pointed_thing)
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--place node
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local pos = pointed_thing.above
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local under = pointed_thing.under
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local above = pointed_thing.above
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local dir = sub(under, above)
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local wm = minetest.dir_to_wallmounted(dir)
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local fd = walltoface[wm + 1]
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if fd == -1 then
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return itemstack
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end
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minetest.env:add_node(pos, { name = "painting:pic",
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param2 = fd,
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paramtype2 = "none" })
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--save metadata
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local data = itemstack:get_metadata()
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local meta = minetest.env:get_meta(pos)
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meta:set_string("painting:picturedata", data)
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--add entity
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dir = dirs[fd]
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local off = 0.5 - thickness - 0.01
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pos = { x = pos.x + dir.x * off,
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y = pos.y,
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z = pos.z + dir.z * off }
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data = minetest.deserialize(data)
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local p = minetest.env:add_entity(pos, "painting:picent"):get_luaentity()
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p.object:set_properties({ textures = { to_imagestring(data.grid, data.res) }})
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p.object:setyaw(math.pi * fd / -2)
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return ItemStack("")
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end
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}
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--canvas inventory item
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canvas = {
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description = "Canvas",
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inventory_image = "default_paper.png",
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stack_max = 99,
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}
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--canvas for drawing
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canvasbox = {
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type = "fixed",
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fixed = { -0.5, -0.5, 0.0, 0.5, 0.5, thickness }
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}
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canvasnode = {
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description = "Canvas",
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tiles = { "white.png" },
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inventory_image = "painted.png",
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drawtype = "nodebox",
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sunlight_propagates = true,
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paramtype = "light",
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paramtype2 = "facedir",
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node_box = canvasbox,
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selection_box = canvasbox,
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groups = { snappy = 2, choppy = 2, oddly_breakable_by_hand = 2, not_in_creative_inventory=1 },
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drop = "",
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after_dig_node=function(pos, oldnode, oldmetadata, digger)
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--get data and remove pixels
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local data = {}
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local objects = minetest.env:get_objects_inside_radius(pos, 0.5)
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for _, e in ipairs(objects) do
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e = e:get_luaentity()
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if e.grid then
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data.grid = e.grid
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data.res = e.res
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end
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e.object:remove()
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end
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pos.y = pos.y-1
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minetest.env:get_meta(pos):set_string("has_canvas", 0)
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if data.grid then
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local item = { name = "painting:paintedcanvas", count = 1, metadata = minetest.serialize(data) }
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digger:get_inventory():add_item("main", item)
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end
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end
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}
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-- easel
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easelbox = {
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type="fixed",
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fixed = {
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--feet
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{-0.4, -0.5, -0.5, -0.3, -0.4, 0.5 },
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{ 0.3, -0.5, -0.5, 0.4, -0.4, 0.5 },
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--legs
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{-0.4, -0.4, 0.1, -0.3, 1.5, 0.2 },
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{ 0.3, -0.4, 0.1, 0.4, 1.5, 0.2 },
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--shelf
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{-0.5, 0.35, -0.3, 0.5, 0.45, 0.1 }
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}
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}
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easel = {
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description = "Easel",
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tiles = { "default_wood.png" },
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drawtype = "nodebox",
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sunlight_propagates = true,
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paramtype = "light",
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paramtype2 = "facedir",
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node_box = easelbox,
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selection_box = easelbox,
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groups = { snappy = 2, choppy = 2, oddly_breakable_by_hand = 2 },
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on_punch = function(pos, node, player)
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local wielded_raw = player:get_wielded_item():get_name()
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wielded = string.split(wielded_raw, "_")
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local name = wielded[1]
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local res = tonumber(wielded[2])
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if name ~= "painting:canvas" then
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return
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end
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local meta = minetest.env:get_meta(pos)
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local fd = node.param2
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pos = { x = pos.x, y = pos.y + 1, z = pos.z }
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if minetest.env:get_node(pos).name ~= "air" then return end
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minetest.env:add_node(pos, { name = "painting:canvasnode",
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param2 = fd,
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paramtype2 = "none" })
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local dir = dirs[fd]
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pos = { x = pos.x - 0.01 * dir.x, y = pos.y, z = pos.z - 0.01 * dir.z }
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local p = minetest.env:add_entity(pos, "painting:paintent"):get_luaentity()
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p.object:set_properties({ collisionbox = paintbox[fd%2] })
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p.object:set_armor_groups({immortal=1})
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p.object:setyaw(math.pi * fd / -2)
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p.grid = initgrid(res)
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p.res = res
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p.fd = fd
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meta:set_int("has_canvas", 1)
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local itemstack = ItemStack(wielded_raw)
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player:get_inventory():remove_item("main", itemstack)
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end,
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can_dig = function(pos,player)
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local meta = minetest.env:get_meta(pos)
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local inv = meta:get_inventory()
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if meta:get_int("has_canvas") == 0 then
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return true
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end
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return false
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end
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}
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--brushes
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local function table_copy(t)
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local t2 = {}
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for k,v in pairs(t) do
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t2[k] = v
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end
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return t2
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end
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brush = {
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description = "brush",
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inventory_image = "default_tool_steelaxe.png",
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wield_image = "",
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wield_scale = { x = 1, y = 1, z = 1 },
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stack_max = 99,
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liquids_pointable = false,
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tool_capabilities = {
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full_punch_interval = 1.0,
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max_drop_level=0,
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groupcaps = {}
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}
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}
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minetest.register_entity("painting:picent", picent)
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minetest.register_node("painting:pic", picnode)
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minetest.register_craftitem("painting:canvas_16", canvas)
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minetest.register_craftitem("painting:canvas_32", canvas)
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minetest.register_craftitem("painting:canvas_64", canvas)
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minetest.register_craftitem("painting:paintedcanvas", paintedcanvas)
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minetest.register_entity("painting:paintent", paintent)
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minetest.register_node("painting:canvasnode", canvasnode)
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minetest.register_node("painting:easel", easel)
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for color, _ in pairs(textures) do
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table.insert(revcolors, color)
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local brush_new = table_copy(brush)
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brush_new.description = color:gsub("^%l", string.upper).." brush"
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brush_new.inventory_image = "painting_brush_"..color..".png"
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minetest.register_tool("painting:brush_"..color, brush_new)
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minetest.register_craft({
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output = "painting:brush_"..color,
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recipe = {
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{"dye:"..color},
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{"default:stick"},
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{"default:stick"}
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}
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})
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end
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for i, color in ipairs(revcolors) do
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colors[color] = i
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end
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minetest.register_alias("easel", "painting:easel")
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minetest.register_alias("canvas", "painting:canvas_16")
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function initgrid(res)
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local grid, x, y = {}
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for x = 0, res - 1 do
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grid[x] = {}
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for y = 0, res - 1 do
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grid[x][y] = colors["white"]
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end
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end
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return grid
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end
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function to_imagestring(data, res)
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if not data then return end
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local t = { "[combine:", res, "x", res, ":" }
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for y = 0, res - 1 do
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for x = 0, res - 1 do
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table.insert(t, x..","..y.."="..revcolors[ data[x][y] ]..".png:")
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end
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end
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return table.concat(t)
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end
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dirs = {
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[0] = { x = 0, z = 1 },
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[1] = { x = 1, z = 0 },
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[2] = { x = 0, z =-1 },
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[3] = { x =-1, z = 0 } }
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function sub(v, w)
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return { x = v.x - w.x,
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y = v.y - w.y,
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z = v.z - w.z }
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end
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function dot(v, w)
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return v.x * w.x + v.y * w.y + v.z * w.z
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end
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function intersect(pos, dir, origin, normal)
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local t = -(dot(sub(pos, origin), normal)) / dot(dir, normal)
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return { x = pos.x + dir.x * t,
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y = pos.y + dir.y * t,
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z = pos.z + dir.z * t }
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end
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function clamp(num, res)
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if num < 0 then
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return 0
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elseif num > res - 1 then
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return res - 1
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else
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return num
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end
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end
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