435 lines
12 KiB
Lua
435 lines
12 KiB
Lua
meshnode = {}
|
|
|
|
meshnode.config = {
|
|
max_speed = 2,
|
|
max_lift = 1,
|
|
yaw_amount = 0.017,
|
|
max_radius = 8,
|
|
show_in_creative = false,
|
|
enable_crafting = false,
|
|
fake_shading = false,
|
|
autoconf = false,
|
|
}
|
|
|
|
meshnode.blacklist = {}
|
|
|
|
local face_rotation = {
|
|
{x=0, y=0, z=0}, {x=0, y=90, z=0}, {x=0, y=180, z=0},
|
|
{x=0, y=-90, z=0}, {x=90, y=0, z=0}, {x=90, y=0, z=90},
|
|
{x=90, y=0, z=180}, {x=90, y=0, z=-90}, {x=-90, y=0, z=0},
|
|
{x=-90, y=0, z=-90}, {x=-90, y=0, z=180}, {x=-90, y=0, z=90},
|
|
{x=0, y=0, z=-90}, {x=90, y=90, z=0}, {x=180, y=0, z=90},
|
|
{x=0, y=-90, z=-90}, {x=0, y=0, z=90}, {x=0, y=90, z=90},
|
|
{x=180, y=0, z=-90}, {x=0, y=-90, z=90}, {x=180, y=180, z=0},
|
|
{x=180, y=90, z=0}, {x=180, y=0, z=0}, {x=180, y=-90, z=0},
|
|
}
|
|
|
|
local meshnode_id = 0
|
|
|
|
local function connects_to_group(pos, groups)
|
|
local node = minetest.get_node(pos)
|
|
for _, group in pairs(groups) do
|
|
if minetest.get_item_group(node.name, group) > 0 then
|
|
return true
|
|
end
|
|
end
|
|
end
|
|
|
|
local function get_tile_textures(tiles)
|
|
local textures = table.copy(tiles)
|
|
for i, v in pairs(textures) do
|
|
if type(v) == "table" then
|
|
textures[i] = v.name or "blank.png"
|
|
if v.name and v.animation then
|
|
local w = v.animation.aspect_w or 16
|
|
local h = v.animation.aspect_h or w
|
|
textures[i] = "[combine:"..w.."x"..h..":0,0="..v.name
|
|
end
|
|
end
|
|
end
|
|
return textures
|
|
end
|
|
|
|
local function get_tile_shading(t, facedir)
|
|
local tiles = {t[1], t[1], t[1], t[1], t[1], t[1]}
|
|
if #t == 3 then
|
|
tiles = {t[1], t[2], t[3], t[3], t[3], t[3]}
|
|
elseif #t == 6 then
|
|
tiles = table.copy(t)
|
|
end
|
|
if facedir and meshnode.config.fake_shading == true then
|
|
local tile_opposite = {2, 1, 4, 3, 6, 5}
|
|
local tile_rotation = {[0] =
|
|
{1, 6}, {1, 3}, {1, 5}, {1, 4},
|
|
{6, 2}, {3, 2}, {5, 2}, {4, 2},
|
|
{5, 1}, {4, 1}, {6, 1}, {3, 1},
|
|
{4, 6}, {6, 3}, {3, 5}, {5, 4},
|
|
{3, 6}, {5, 3}, {4, 5}, {6, 4},
|
|
{2, 6}, {2, 3}, {2, 5}, {2, 4},
|
|
}
|
|
local modifiers = {}
|
|
local top = tile_rotation[facedir][1]
|
|
local front = tile_rotation[facedir][2]
|
|
local bottom = tile_opposite[top]
|
|
local back = tile_opposite[front]
|
|
modifiers[top] = "^[colorize:#000000:16"
|
|
modifiers[bottom] = "^[colorize:#000000:128"
|
|
modifiers[front] = "^[colorize:#000000:64"
|
|
modifiers[back] = "^[colorize:#000000:64"
|
|
for i = 1, 6 do
|
|
local modifier = modifiers[i] or "^[colorize:#000000:32"
|
|
tiles[i] = tiles[i]..modifier
|
|
end
|
|
end
|
|
return tiles
|
|
end
|
|
|
|
local function get_facecon_textures(facecons, texture)
|
|
local textures = {
|
|
"meshnode_trans.png",
|
|
"meshnode_trans.png",
|
|
"meshnode_trans.png",
|
|
"meshnode_trans.png",
|
|
}
|
|
for i = 1, 4 do
|
|
if facecons[i] == true then
|
|
textures[i] = texture
|
|
end
|
|
end
|
|
return textures
|
|
end
|
|
|
|
local function restore_facedir(node, delta, yaw)
|
|
local facedir = node.param2 or 0
|
|
local def = minetest.registered_items[node.name] or {}
|
|
if def.paramtype2 == "facedir" then
|
|
local rot = (meshnode.yaw_to_facedir(yaw) + delta) % 4
|
|
node.param2 = meshnode.rotate_facedir(rot, facedir)
|
|
end
|
|
end
|
|
|
|
meshnode.new_id = function()
|
|
meshnode_id = meshnode_id + 1
|
|
return tostring(meshnode_id)
|
|
end
|
|
|
|
meshnode.get_luaentity = function(id)
|
|
for _, entity in pairs(minetest.luaentities) do
|
|
if entity.mesh_id == id then
|
|
return entity
|
|
end
|
|
end
|
|
end
|
|
|
|
meshnode.get_map_pos = function(ref, parent)
|
|
local pos = parent.object:getpos()
|
|
local yaw = parent.object:getyaw()
|
|
local rot = meshnode.rotate_offset(yaw, ref.offset)
|
|
local vec = vector.add(pos, rot)
|
|
return vector.round(vec)
|
|
end
|
|
|
|
meshnode.facedir_to_yaw = function(facedir)
|
|
local yaw = 0
|
|
local rot = facedir % 4
|
|
if rot == 1 then
|
|
yaw = 3 * math.pi / 2
|
|
elseif rot == 2 then
|
|
yaw = math.pi
|
|
elseif rot == 3 then
|
|
yaw = math.pi / 2
|
|
end
|
|
return yaw
|
|
end
|
|
|
|
meshnode.yaw_to_facedir = function(yaw)
|
|
local deg = math.floor(math.deg(yaw) + 0.5) % 360
|
|
if deg < 90 then
|
|
return 0
|
|
end
|
|
return 4 - math.floor(deg / 90)
|
|
end
|
|
|
|
meshnode.facedir_to_rotation = function(facedir)
|
|
return face_rotation[facedir + 1] or face_rotation[1]
|
|
end
|
|
|
|
meshnode.rotation_to_facedir = function(rotation)
|
|
for i, v in ipairs(face_rotation) do
|
|
if vector.equals(v, rotation) then
|
|
return i - 1
|
|
end
|
|
end
|
|
return 0
|
|
end
|
|
|
|
meshnode.rotate_facedir = function(rot, facedir)
|
|
if rot == 0 then
|
|
return facedir
|
|
end
|
|
local rotation = facedir % 32
|
|
local axis = math.floor(rotation / 4)
|
|
if axis == 0 then
|
|
rotation = rotation + rot
|
|
elseif axis == 5 then
|
|
rotation = rotation - rot
|
|
else
|
|
local axis_rotation = {
|
|
{3, 2, 4},
|
|
{4, 1, 3},
|
|
{2, 4, 1},
|
|
{1, 3, 2},
|
|
}
|
|
local next_axis = axis_rotation[axis]
|
|
axis = next_axis[rot]
|
|
rotation = rotation + rot
|
|
end
|
|
return axis * 4 + (rotation % 4)
|
|
end
|
|
|
|
meshnode.rotate_offset = function(yaw, offset)
|
|
local cos = math.cos(yaw)
|
|
local sin = math.sin(yaw)
|
|
local x = offset.x * cos - offset.z * sin
|
|
local z = offset.x * sin + offset.z * cos
|
|
return vector.round({x=x, y=offset.y, z=z})
|
|
end
|
|
|
|
meshnode.add_entity = function(ref, parent)
|
|
local pos = meshnode.get_map_pos(ref, parent)
|
|
local object = minetest.add_entity(pos, "meshnode:mesh")
|
|
if object then
|
|
local properties = {textures={ref.node.name}}
|
|
local def = minetest.registered_items[ref.node.name] or {}
|
|
local tiles = get_tile_textures(def.tiles)
|
|
if ref.meshtype == "stair" or
|
|
ref.meshtype == "cube" or
|
|
ref.meshtype == "slab" then
|
|
local param2 = ref.node.param2 or 0
|
|
properties.visual = "mesh"
|
|
properties.visual_size = {x=1, y=1}
|
|
properties.mesh = "meshnode_"..ref.meshtype..".obj"
|
|
properties.textures = get_tile_shading(tiles, param2)
|
|
elseif ref.meshtype == "mesh" then
|
|
properties.visual = "mesh"
|
|
properties.visual_size = {x=10, y=10}
|
|
properties.mesh = def.mesh
|
|
properties.textures = tiles
|
|
elseif ref.meshtype == "plant" then
|
|
properties.visual = "mesh"
|
|
properties.visual_size = {x=1, y=1}
|
|
properties.mesh = "meshnode_plant.obj"
|
|
properties.textures = {tiles[1]}
|
|
elseif ref.meshtype == "fence" then
|
|
local textures = get_facecon_textures(ref.facecons, tiles[1])
|
|
table.insert(textures, 1, tiles[1])
|
|
properties.visual = "mesh"
|
|
properties.visual_size = {x=1, y=1}
|
|
properties.mesh = "meshnode_fence.obj"
|
|
properties.textures = textures
|
|
elseif ref.meshtype == "wall" then
|
|
local textures = get_facecon_textures(ref.facecons, tiles[1])
|
|
table.insert(textures, 1, tiles[1])
|
|
properties.visual = "mesh"
|
|
properties.visual_size = {x=1, y=1}
|
|
properties.mesh = "meshnode_wall.obj"
|
|
properties.textures = textures
|
|
elseif ref.meshtype == "pane" then
|
|
local textures = get_facecon_textures(ref.facecons, tiles[3])
|
|
properties.visual = "mesh"
|
|
properties.visual_size = {x=1, y=1}
|
|
properties.mesh = "meshnode_pane.obj"
|
|
properties.textures = textures
|
|
end
|
|
object:set_properties(properties)
|
|
if parent then
|
|
local entity = object:get_luaentity()
|
|
if entity then
|
|
entity.mesh_id = ref.id
|
|
entity.parent_id = parent.mesh_id
|
|
else
|
|
object:remove()
|
|
return
|
|
end
|
|
local yaw = parent.object:getyaw()
|
|
local offset = vector.multiply(ref.offset, 10)
|
|
object:set_attach(parent.object, "", offset, ref.rotation)
|
|
end
|
|
end
|
|
return object
|
|
end
|
|
|
|
meshnode.create = function(pos, parent)
|
|
local node = minetest.get_node(pos)
|
|
local meta = minetest.get_meta(pos)
|
|
local def = minetest.registered_items[node.name] or {}
|
|
local meshtype = "wielditem"
|
|
local scaffold = "meshnode:scaffold"
|
|
local facecons = {}
|
|
local faces = {
|
|
[1] = {x=0, y=0, z=-1},
|
|
[2] = {x=-1, y=0, z=0},
|
|
[3] = {x=0, y=0, z=1},
|
|
[4] = {x=1, y=0, z=0},
|
|
}
|
|
if not parent or
|
|
meshnode.blacklist[node.name] or
|
|
node.name == "meshnode:controller" or
|
|
node.name == "air" or
|
|
node.name == "ignore" or
|
|
def.paramtype2 == "wallmounted" or
|
|
def.paramtype2 == "flowingliquid" then
|
|
return
|
|
elseif def.drawtype == nil or
|
|
def.drawtype == "normal" or
|
|
def.drawtype == "liquid" then
|
|
meshtype = "cube"
|
|
elseif def.drawtype == "mesh" then
|
|
if string.find(node.name, "^stairs:stair_") then
|
|
meshtype = "stair"
|
|
else
|
|
meshtype = "mesh"
|
|
end
|
|
elseif string.find(node.name, "^stairs:slab_") then
|
|
meshtype = "slab"
|
|
elseif def.drawtype == "plantlike" then
|
|
meshtype = "plant"
|
|
elseif minetest.get_item_group(node.name, "fence") > 0 then
|
|
scaffold = "meshnode:scaffold_fence"
|
|
if def.drawtype ~= "mesh" then
|
|
meshtype = "fence"
|
|
for i, face in pairs(faces) do
|
|
local p = vector.add(pos, face)
|
|
facecons[i] = connects_to_group(p, {"fence", "wood", "tree"})
|
|
end
|
|
end
|
|
elseif minetest.get_item_group(node.name, "wall") > 0 then
|
|
scaffold = "meshnode:scaffold_wall"
|
|
if def.drawtype ~= "mesh" then
|
|
meshtype = "wall"
|
|
for i, face in pairs(faces) do
|
|
local p = vector.add(pos, face)
|
|
facecons[i] = connects_to_group(p, {"wall", "stone"})
|
|
end
|
|
end
|
|
elseif minetest.get_item_group(node.name, "pane") > 0 then
|
|
meshtype = "pane"
|
|
scaffold = "meshnode:scaffold_pane"
|
|
if string.find(node.name, "_flat$") then
|
|
facecons = {[2]=true, [4]=true}
|
|
else
|
|
for i, face in pairs(faces) do
|
|
local p = vector.add(pos, face)
|
|
facecons[i] = connects_to_group(p, {"pane"})
|
|
end
|
|
end
|
|
elseif def.wield_image ~= "" or def.inventory_image ~="" then
|
|
return
|
|
end
|
|
local param2 = node.param2 or 0
|
|
local offset = vector.subtract(pos, parent.object:getpos())
|
|
local yaw = math.pi * 2 - parent.object:getyaw()
|
|
local delta = meshnode.yaw_to_facedir(yaw)
|
|
local facedir = meshnode.rotate_facedir(delta, param2)
|
|
local meta_str = nil
|
|
local meta_tab = meta:to_table() or {}
|
|
if meta_tab.inventory then
|
|
for _, list in pairs(meta_tab.inventory) do
|
|
for i, stack in ipairs(list) do
|
|
local str = ItemStack(stack):to_string()
|
|
if str:len() > 0xffff then
|
|
minetest.log("error", "String too long for serialization!")
|
|
str = ""
|
|
end
|
|
list[i] = str
|
|
end
|
|
end
|
|
end
|
|
local ref = {
|
|
id = meshnode.new_id(),
|
|
node = node,
|
|
meta = meta_tab,
|
|
delta = delta,
|
|
meshtype = meshtype,
|
|
facecons = facecons,
|
|
offset = meshnode.rotate_offset(yaw, offset),
|
|
rotation = meshnode.facedir_to_rotation(facedir),
|
|
}
|
|
local object = meshnode.add_entity(ref, parent)
|
|
if object then
|
|
minetest.set_node(pos, {name=scaffold})
|
|
table.insert(parent.nodes, ref)
|
|
end
|
|
return object
|
|
end
|
|
|
|
meshnode.restore = function(ref, parent)
|
|
local entity = meshnode.get_luaentity(ref.id)
|
|
local pos = meshnode.get_map_pos(ref, parent)
|
|
local yaw = parent.object:getyaw()
|
|
restore_facedir(ref.node, ref.delta, yaw)
|
|
minetest.add_node(pos, ref.node)
|
|
if entity then
|
|
entity.object:setpos(pos)
|
|
entity.object:set_detach()
|
|
entity.object:remove()
|
|
end
|
|
if ref.meta then
|
|
local meta = minetest.get_meta(pos)
|
|
local meta_tab = ref.meta or {}
|
|
meta:from_table(meta_tab)
|
|
end
|
|
end
|
|
|
|
meshnode.restore_all = function(parent, name)
|
|
local positions = {}
|
|
if #parent.nodes == 0 then
|
|
return positions
|
|
end
|
|
local minp = {x=32000, y=32000, z=32000}
|
|
local maxp = vector.multiply(minp, -1)
|
|
local yaw = parent.object:getyaw()
|
|
local nodedata = {}
|
|
for _, ref in pairs(parent.nodes) do
|
|
local pos = meshnode.get_map_pos(ref, parent)
|
|
if not minetest.get_node_or_nil(pos) then
|
|
return
|
|
end
|
|
if name and minetest.is_protected(pos, name) then
|
|
return
|
|
end
|
|
table.insert(nodedata, {pos=pos, ref=ref})
|
|
for axis, val in pairs(pos) do
|
|
if val < minp[axis] then
|
|
minp[axis] = val
|
|
end
|
|
if val > maxp[axis] then
|
|
maxp[axis] = val
|
|
end
|
|
end
|
|
end
|
|
local vm = minetest.get_voxel_manip(minp, maxp)
|
|
for _, data in pairs(nodedata) do
|
|
restore_facedir(data.ref.node, data.ref.delta, yaw)
|
|
vm:set_node_at(data.pos, data.ref.node)
|
|
end
|
|
vm:write_to_map()
|
|
vm:update_liquids()
|
|
vm:update_map()
|
|
for _, data in pairs(nodedata) do
|
|
local entity = meshnode.get_luaentity(data.ref.id)
|
|
if entity then
|
|
entity.object:setpos(data.pos)
|
|
entity.object:set_detach()
|
|
entity.object:remove()
|
|
end
|
|
if data.ref.meta then
|
|
local meta = minetest.get_meta(data.pos)
|
|
local meta_tab = data.ref.meta or {}
|
|
meta:from_table(meta_tab)
|
|
end
|
|
table.insert(positions, data.pos)
|
|
end
|
|
return positions
|
|
end
|