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--[[
Eleficery --- Elemental trinkets for minetest game
Copyright © 2026 bdunahu <bdunahu@operationnull.com>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
--]]
eleficery.is_water = function(pos)
return core.get_node(pos).name == "default:water_source"
end
eleficery.snap_to_cardinal = function(look_dir)
local d = { x = look_dir.x, y = 0, z = look_dir.z }
if vector.length(d) == 0 then return {x=0, y=0, z=1} end
if math.abs(d.x) > math.abs(d.z) then
d.z = 0
d.x = d.x > 0 and 1 or -1
else
d.x = 0
d.z = d.z > 0 and 1 or -1
end
return d
end
eleficery.get_held_dir_to_player = function(player)
-- 'to_player' because this gives a position relative
-- to the player's perspective
local ctrl = player:get_player_control()
local zero = {x=0, y=0, z=0}
local look_dir = player:get_look_dir(placer)
local forward = eleficery.snap_to_cardinal(look_dir)
local back = vector.multiply(forward, -1)
local up = {x=0, y=1, z=0}
local right = vector.cross(up, forward)
local left = vector.multiply(right, -1)
if ctrl.up then
return forward
elseif ctrl.down then
return back
elseif ctrl.left then
return left
elseif ctrl.right then
return right
end
end
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