wield3d/init.lua

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--[[
MIT License
Copyright (c) 2019 stujones11, Stuart Jones
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
]]--
wield3d = {}
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dofile(minetest.get_modpath(minetest.get_current_modname()).."/location.lua")
local has_wieldview = minetest.get_modpath("wieldview")
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local update_time = minetest.settings:get("wield3d_update_time")
local verify_time = minetest.settings:get("wield3d_verify_time")
local player_wielding = {}
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update_time = update_time and tonumber(update_time) or 1
verify_time = verify_time and tonumber(verify_time) or 10
local location = {
"Arm_Right", -- default bone
{x=0, y=5.5, z=3}, -- default position
{x=-90, y=225, z=90}, -- default rotation
{x=0.25, y=0.25}, -- default scale
}
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local function add_wield_entity(player)
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if not player or not player:is_player() then
return
end
local name = player:get_player_name()
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local pos = player:get_pos()
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if name and pos and not player_wielding[name] then
pos.y = pos.y + 0.5
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local object = minetest.add_entity(pos, "wield3d:wield_entity", name)
if object then
object:set_attach(player, location[1], location[2], location[3])
object:set_properties({
textures = {"wield3d:hand"},
visual_size = location[4],
})
player_wielding[name] = {}
player_wielding[name].item = ""
player_wielding[name].location = location
end
end
end
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local function sq_dist(a, b)
local x = a.x - b.x
local y = a.y - b.y
local z = a.z - b.z
return x * x + y * y + z * z
end
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local wield_entity = {
physical = false,
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collisionbox = {-0.125,-0.125,-0.125, 0.125,0.125,0.125},
visual = "wielditem",
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textures = {"wield3d:hand"},
wielder = nil,
timer = 0,
}
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function wield_entity:on_activate(staticdata)
if staticdata then
self.wielder = staticdata
return
end
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self.object:remove()
end
function wield_entity:on_step(dtime)
if self.wielder == nil then
return
end
self.timer = self.timer + dtime
if self.timer < update_time then
return
end
local player = minetest.get_player_by_name(self.wielder)
if player == nil or
sq_dist(player:get_pos(), self.object:get_pos()) > 3 then
player_wielding[self.wielder] = nil
self.object:remove()
return
end
local wield = player_wielding[self.wielder]
local stack = player:get_wielded_item()
local item = stack:get_name() or ""
if wield and item ~= wield.item then
if has_wieldview then
local def = minetest.registered_items[item] or {}
if def.inventory_image ~= "" then
item = ""
end
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end
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wield.item = item
if item == "" then
item = "wield3d:hand"
end
local loc = wield3d.location[item] or location
if loc[1] ~= wield.location[1] or
not vector.equals(loc[2], wield.location[2]) or
not vector.equals(loc[3], wield.location[3]) then
self.object:set_attach(player, loc[1], loc[2], loc[3])
wield.location = {loc[1], loc[2], loc[3]}
end
self.object:set_properties({
textures = {item},
visual_size = loc[4],
})
end
self.timer = 0
end
local function table_iter(t)
local i = 0
local n = table.getn(t)
return function ()
i = i + 1
if i <= n then
return t[i]
end
end
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end
local player_iter = nil
local function verify_wielditems()
player_iter = player_iter or table_iter(minetest.get_connected_players())
-- only deal with one player per server step
local player = player_iter()
if player and player:is_player() then
local name = player:get_player_name()
local pos = name and player:get_pos()
if pos then
pos.y = pos.y + 0.5
local wielding = false
local objects = minetest.get_objects_inside_radius(pos, 0.5)
for _, object in pairs(objects) do
local entity = object:get_luaentity()
if entity and entity.wielder == name then
wielding = true
break
end
end
if not wielding then
add_wield_entity(player)
end
end
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return minetest.after(0, verify_wielditems)
end
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player_iter = nil
minetest.after(verify_time, verify_wielditems)
end
minetest.after(verify_time, verify_wielditems)
minetest.register_entity("wield3d:wield_entity", wield_entity)
minetest.register_item("wield3d:hand", {
type = "none",
wield_image = "blank.png",
})
minetest.register_on_joinplayer(function(player)
minetest.after(2, add_wield_entity, player)
end)
minetest.register_on_leaveplayer(function(player)
local name = player:get_player_name()
if name then
player_wielding[name] = nil
end
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end)