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--[[
Copyright (C) 2021 random-geek (https://github.com/random-geek)
This file is part of Meshport.
Meshport is free software: you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the Free
Software Foundation, either version 3 of the License, or (at your option)
any later version.
Meshport is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
more details.
You should have received a copy of the GNU Lesser General Public License
along with Meshport. If not, see <https://www.gnu.org/licenses/>.
]]
meshport = {
player_data = {},
S = minetest.get_translator("meshport"),
}
modpath = minetest.get_modpath("meshport")
dofile(modpath .. "/utils.lua")
dofile(modpath .. "/mesh.lua")
dofile(modpath .. "/parse_obj.lua")
dofile(modpath .. "/nodebox.lua")
dofile(modpath .. "/export.lua")
local S = meshport.S
local vec = vector.new
minetest.register_privilege("meshport", S("Can save meshes with Meshport."))
minetest.register_on_leaveplayer(function(player, timed_out)
local name = player:get_player_name()
meshport.player_data[name] = nil
end)
for n = 1, 2 do
local tex = "meshport_corner_" .. n .. ".png"
minetest.register_entity("meshport:corner_" .. n, {
initial_properties = {
physical = false,
visual = "cube",
visual_size = {x = 1.04, y = 1.04, z = 1.04},
selectionbox = {-0.52, -0.52, -0.52, 0.52, 0.52, 0.52},
textures = {tex, tex, tex, tex, tex, tex},
static_save = false,
glow = minetest.LIGHT_MAX,
},
on_punch = function(self, hitter)
self.object:remove()
end,
})
end
minetest.register_entity("meshport:border", {
initial_properties = {
physical = false,
visual = "upright_sprite",
textures = {
"meshport_border.png",
"meshport_border.png^[transformFX",
},
static_save = false,
glow = minetest.LIGHT_MAX,
},
on_punch = function(self, hitter)
if not hitter then
return
end
local playerName = hitter:get_player_name()
if not playerName then
return
end
local borders = meshport.player_data[playerName].borders
for i = 1, 6 do -- Remove all borders at once.
if borders[i] then
borders[i]:remove()
borders[i] = nil
end
end
end,
})
local SIDE_ROTATIONS = {
vec(0.5 * math.pi, 0, 0), -- Y+
vec(1.5 * math.pi, 0, 0), -- Y-
vec(0, 1.5 * math.pi, 0), -- X+
vec(0, 0.5 * math.pi, 0), -- X-
vec(0, 0, 0), -- Z+
vec(0, math.pi, 0), -- Z-
}
local function mark_borders(playerData)
local pos1, pos2 = vector.sort(playerData.pos[1], playerData.pos[2])
local center = vector.multiply(vector.add(pos1, pos2), 0.5)
-- Add 0.01 to avoid z-fighting with blocks or corner markers.
local c1, c2 = vector.subtract(pos1, 0.5 + 0.01), vector.add(pos2, 0.5 + 0.01)
local sideCenters = {
vec(center.x, c2.y, center.z), -- Y+
vec(center.x, c1.y, center.z), -- Y-
vec(c2.x, center.y, center.z), -- X+
vec(c1.x, center.y, center.z), -- X-
vec(center.x, center.y, c2.z), -- Z+
vec(center.x, center.y, c1.z), -- Z-
}
local size = vector.subtract(c2, c1)
local sideSizes = {
{x = size.x, y = size.z}, -- Y+
{x = size.x, y = size.z}, -- Y-
{x = size.z, y = size.y}, -- X+
{x = size.z, y = size.y}, -- X-
{x = size.x, y = size.y}, -- Z+
{x = size.x, y = size.y}, -- Z-
}
local half = vector.multiply(size, 0.5)
local selectionBoxes = {
{-half.x, -0.02, -half.z, half.x, 0, half.z}, -- Y+
{-half.x, 0, -half.z, half.x, 0.02, half.z}, -- Y-
{-0.02, -half.y, -half.z, 0, half.y, half.z}, -- X+
{0, -half.y, -half.z, 0.02, half.y, half.z}, -- X-
{-half.x, -half.y, -0.02, half.x, half.y, 0}, -- Z+
{-half.x, -half.y, 0, half.x, half.y, 0.02}, -- Z-
}
for i = 1, 6 do
local entity = minetest.add_entity(sideCenters[i], "meshport:border")
entity:set_properties({
visual_size = sideSizes[i],
selectionbox = selectionBoxes[i],
})
entity:set_rotation(SIDE_ROTATIONS[i])
playerData.borders[i] = entity
end
end
local function set_position(playerName, n, pos)
if not meshport.player_data[playerName] then
meshport.player_data[playerName] = {
pos = {},
corners = {},
borders = {},
}
end
local data = meshport.player_data[playerName]
data.pos[n] = pos
if data.corners[n] then
data.corners[n]:remove()
end
data.corners[n] = minetest.add_entity(pos, "meshport:corner_" .. n)
for i = 1, 6 do
if data.borders[i] then
data.borders[i]:remove()
data.borders[i] = nil
end
end
if data.pos[1] and data.pos[2] then
mark_borders(data)
end
meshport.log(playerName, "info", S("Position @1 set to @2.", n, minetest.pos_to_string(pos)))
end
for n = 1, 2 do
minetest.register_chatcommand("mesh" .. n, {
params = "[pos]",
description = S(
"Set position @1 for Meshport. Player's position is used if no other position is specified.", n),
privs = {meshport = true},
func = function(playerName, param)
local pos
if param == "" then
pos = minetest.get_player_by_name(playerName):get_pos()
else
pos = minetest.string_to_pos(param)
end
if not pos then
meshport.log(playerName, "error", S("Not a valid position."))
return
end
pos = vector.round(pos)
set_position(playerName, n, pos)
end,
})
end
local function on_wand_click(itemstack, player, pointedThing, n)
if not player or pointedThing.type == "nothing" then
return
end
local playerName = player:get_player_name()
if not minetest.check_player_privs(playerName, "meshport") then
meshport.log(playerName, "error", S("You must have the meshport privilege to use this tool."))
return
end
local pos
if pointedThing.type == "node" then
if player:get_player_control().sneak then
pos = pointedThing.above
else
pos = pointedThing.under
end
elseif pointedThing.type == "object" then
local entity = pointedThing.ref:get_luaentity()
if entity.name == "meshport:border" then
return
end
pos = vector.round(pointedThing.ref:get_pos())
else
return -- In case another pointed_thing.type is added
end
set_position(playerName, n, pos)
end
minetest.register_tool("meshport:wand", {
description = S("Meshport Area Selector\nLeft-click to set 1st corner, right-click to set 2nd corner."),
short_description = S("Meshport Area Selector"),
inventory_image = "meshport_wand.png",
on_use = function(itemstack, placer, pointedThing) -- Left-click
on_wand_click(itemstack, placer, pointedThing, 1)
end,
on_place = function(itemstack, placer, pointedThing) -- Right-click
on_wand_click(itemstack, placer, pointedThing, 2)
return itemstack -- Required by on_place
end,
on_secondary_use = function(itemstack, placer, pointedThing) -- Right-click on non-node
on_wand_click(itemstack, placer, pointedThing, 2)
end,
})
minetest.register_chatcommand("meshrst", {
description = S("Clear the current Meshport area."),
privs = {meshport = true},
func = function(playerName, param)
local data = meshport.player_data[playerName]
if data then
for n = 1, 2 do
data.pos[n] = nil
if data.corners[n] then
data.corners[n]:remove()
data.corners[n] = nil
end
end
for i = 1, 6 do
if data.borders[i] then
data.borders[i]:remove()
data.borders[i] = nil
end
end
end
meshport.log(playerName, "info", S("Cleared the current area."))
end,
})
minetest.register_chatcommand("meshport", {
params = "[filename]",
description = S("Save a mesh of the selected area (filename optional)."),
privs = {meshport = true},
func = function(playerName, filename)
local playerData = meshport.player_data[playerName] or {}
if not (playerData.pos and playerData.pos[1] and playerData.pos[2]) then
meshport.log(playerName, "error",
S("No area selected. Use the Meshport Area Selector or /mesh1 and /mesh2 to select an area."))
return
end
if filename:find("[^%w-_]") then
meshport.log(playerName, "error",
S("Invalid name supplied. Please use valid characters: [A-Z][a-z][0-9][-_]"))
return
elseif filename == "" then
filename = os.date("%Y-%m-%d_%H-%M-%S")
end
local mpPath = minetest.get_worldpath() .. "/" .. "meshport"
local folderName = playerName .. "_" .. filename
if table.indexof(minetest.get_dir_list(mpPath, true), folderName) > 0 then
meshport.log(playerName, "error",
S("Folder \"@1\" already exists. Try using a different name.", folderName))
return
end
local path = mpPath .. "/" .. folderName
meshport.create_mesh(playerName, playerData.pos[1], playerData.pos[2], path)
end,
})
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