pipeworks/node_breaker.lua

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--register aliases for when someone had technic installed, but then uninstalled it but not pipeworks
minetest.register_alias("technic:nodebreaker_off", "pipeworks:nodebreaker_off")
minetest.register_alias("technic:nodebreaker_on", "pipeworks:nodebreaker_on")
minetest.register_alias("technic:node_breaker_off", "pipeworks:nodebreaker_off") --old name
minetest.register_alias("technic:node_breaker_on", "pipeworks:nodebreaker_on") --old name
minetest.register_craft({
output = 'pipeworks:nodebreaker_off 1',
recipe = {
{'default:wood', 'default:pick_mese','default:wood'},
{'default:stone', 'mesecons:piston','default:stone'},
{'default:stone', 'mesecons:mesecon','default:stone'},
}
})
function hacky_swap_node(pos,name)
local node=minetest.get_node(pos)
local meta=minetest.get_meta(pos)
local meta0=meta:to_table()
node.name=name
minetest.add_node(pos, node)
local meta=minetest.get_meta(pos)
meta:from_table(meta0)
end
--define the functions from https://github.com/minetest/minetest/pull/834 while waiting for the devs to notice it
local function dir_to_facedir(dir, is6d)
--account for y if requested
if is6d and math.abs(dir.y) > math.abs(dir.x) and math.abs(dir.y) > math.abs(dir.z) then
--from above
if dir.y < 0 then
if math.abs(dir.x) > math.abs(dir.z) then
if dir.x < 0 then
return 19
else
return 13
end
else
if dir.z < 0 then
return 10
else
return 4
end
end
--from below
else
if math.abs(dir.x) > math.abs(dir.z) then
if dir.x < 0 then
return 15
else
return 17
end
else
if dir.z < 0 then
return 6
else
return 8
end
end
end
--otherwise, place horizontally
elseif math.abs(dir.x) > math.abs(dir.z) then
if dir.x < 0 then
return 3
else
return 1
end
else
if dir.z < 0 then
return 2
else
return 0
end
end
end
local function facedir_to_dir(facedir)
--a table of possible dirs
return ({{x=0, y=0, z=1},
{x=1, y=0, z=0},
{x=0, y=0, z=-1},
{x=-1, y=0, z=0},
{x=0, y=-1, z=0},
{x=0, y=1, z=0}})
--indexed into by a table of correlating facedirs
[({[0]=1, 2, 3, 4,
5, 2, 6, 4,
6, 2, 5, 4,
1, 5, 3, 6,
1, 6, 3, 5,
1, 4, 3, 2})
--indexed into by the facedir in question
[facedir]]
end
node_breaker_on = function(pos, node)
if node.name == "pipeworks:nodebreaker_off" then
hacky_swap_node(pos,"pipeworks:nodebreaker_on")
break_node(pos,node.param2)
nodeupdate(pos)
end
end
node_breaker_off = function(pos, node)
if node.name == "pipeworks:nodebreaker_on" then
hacky_swap_node(pos,"pipeworks:nodebreaker_off")
nodeupdate(pos)
end
end
function break_node (pos, facedir)
--locate the outgoing velocity, front, and back of the node via facedir_to_dir
local vel = facedir_to_dir(facedir);
local front = {x=pos.x - vel.x, y=pos.y - vel.y, z=pos.z - vel.z}
local back = {x=pos.x + vel.x, y=pos.y + vel.y, z=pos.z + vel.z}
local node = minetest.get_node(front)
if node.name == "air" or node.name == "ignore" then
return nil
elseif minetest.registered_nodes[node.name] and minetest.registered_nodes[node.name].liquidtype ~= "none" then
return nil
end
local digger = {
get_player_name = function() return "node_breaker" end,
getpos = function() return pos end,
get_player_control = function() return {jump=false,right=false,left=false,LMB=false,RMB=false,sneak=false,aux1=false,down=false,up=false} end,
}
--check node to make sure it is diggable
local def = ItemStack({name=node.name}):get_definition()
if #def ~= 0 and not def.diggable or (def.can_dig and not def.can_dig(front, digger)) then --node is not diggable
return
end
--handle node drops
local drops = minetest.get_node_drops(node.name, "default:pick_mese")
for _, dropped_item in ipairs(drops) do
local item1 = tube_item({x=pos.x, y=pos.y, z=pos.z}, dropped_item)
item1:get_luaentity().start_pos = {x=pos.x, y=pos.y, z=pos.z}
item1:setvelocity(vel)
item1:setacceleration({x=0, y=0, z=0})
end
minetest.remove_node(front)
--handle post-digging callback
if def.after_dig_node then
-- Copy pos and node because callback can modify them
local pos_copy = {x=front.x, y=front.y, z=front.z}
local node_copy = {name=node.name, param1=node.param1, param2=node.param2}
def.after_dig_node(pos_copy, node_copy, oldmetadata, digger)
end
--run digging event callbacks
for _, callback in ipairs(minetest.registered_on_dignodes) do
-- Copy pos and node because callback can modify them
local pos_copy = {x=front.x, y=front.y, z=front.z}
local node_copy = {name=node.name, param1=node.param1, param2=node.param2}
callback(pos_copy, node_copy, digger)
end
end
minetest.register_node("pipeworks:nodebreaker_off", {
description = "Node Breaker",
tile_images = {"pipeworks_nodebreaker_top_off.png","pipeworks_nodebreaker_bottom_off.png","pipeworks_nodebreaker_side2_off.png","pipeworks_nodebreaker_side1_off.png",
"pipeworks_nodebreaker_back.png","pipeworks_nodebreaker_front_off.png"},
is_ground_content = true,
paramtype2 = "facedir",
groups = {snappy=2,choppy=2,oddly_breakable_by_hand=2, mesecon = 2,tubedevice=1},
mesecons= {effector={action_on=node_breaker_on, action_off=node_breaker_off}},
sounds = default.node_sound_stone_defaults(),
tube = {connect_sides={back=1}},
after_place_node = function (pos, placer)
tube_scanforobjects(pos, placer)
local placer_pos = placer:getpos()
--correct for the player's height
if placer:is_player() then placer_pos.y = placer_pos.y + 1.5 end
--correct for 6d facedir
if placer_pos then
local dir = {
x = pos.x - placer_pos.x,
y = pos.y - placer_pos.y,
z = pos.z - placer_pos.z
}
local node = minetest.get_node(pos)
node.param2 = dir_to_facedir(dir, true)
minetest.set_node(pos, node)
minetest.log("action", "real (6d) facedir: " .. node.param2)
end
end,
after_dig_node = tube_scanforobjects,
})
minetest.register_node("pipeworks:nodebreaker_on", {
description = "Node Breaker",
tile_images = {"pipeworks_nodebreaker_top_on.png","pipeworks_nodebreaker_bottom_on.png","pipeworks_nodebreaker_side2_on.png","pipeworks_nodebreaker_side1_on.png",
"pipeworks_nodebreaker_back.png","pipeworks_nodebreaker_front_on.png"},
mesecons= {effector={action_on=node_breaker_on, action_off=node_breaker_off}},
is_ground_content = true,
paramtype2 = "facedir",
groups = {snappy=2,choppy=2,oddly_breakable_by_hand=2, mesecon = 2,tubedevice=1,not_in_creative_inventory=1},
sounds = default.node_sound_stone_defaults(),
tube = {connect_sides={back=1}},
after_place_node = function (pos, placer)
tube_scanforobjects(pos, placer)
local placer_pos = placer:getpos()
--correct for the player's height
if placer:is_player() then placer_pos.y = placer_pos.y + 1.5 end
--correct for 6d facedir
if placer_pos then
local dir = {
x = pos.x - placer_pos.x,
y = pos.y - placer_pos.y,
z = pos.z - placer_pos.z
}
local node = minetest.get_node(pos)
node.param2 = dir_to_facedir(dir, true)
minetest.set_node(pos, node)
minetest.log("action", "real (6d) facedir: " .. node.param2)
end
end,
after_dig_node = tube_scanforobjects,
})