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-- Note: diggers go in group 3 and have an execute_dig method.
local digger_nodebox = {
{ - 0.5 , - 0.5 , 0 , 0.5 , 0.5 , 0.4375 } , -- Block
{ - 0.4375 , - 0.3125 , 0.4375 , 0.4375 , 0.3125 , 0.5 } , -- Cutter1
{ - 0.3125 , - 0.4375 , 0.4375 , 0.3125 , 0.4375 , 0.5 } , -- Cutter2
{ - 0.5 , - 0.125 , - 0.125 , 0.5 , 0.125 , 0 } , -- BackFrame1
{ - 0.125 , - 0.5 , - 0.125 , 0.125 , 0.5 , 0 } , -- BackFrame2
{ - 0.25 , - 0.25 , - 0.5 , 0.25 , 0.25 , 0 } , -- Drive
}
-- Digs out nodes that are "in front" of the digger head.
minetest.register_node ( " digtron:digger " , {
description = " Digger Head " ,
groups = { cracky = 3 , stone = 1 , digtron = 3 } ,
drop = ' digtron:digger ' ,
paramtype = " light " ,
paramtype2 = ' facedir ' ,
drawtype = " nodebox " ,
node_box = {
type = " fixed " ,
fixed = digger_nodebox ,
} ,
-- Aims in the +Z direction by default
tiles = {
" digtron_plate.png^[transformR90 " ,
" digtron_plate.png^[transformR270 " ,
" digtron_plate.png " ,
" digtron_plate.png^[transformR180 " ,
{
name = " digtron_digger.png " ,
animation = {
type = " vertical_frames " ,
aspect_w = 16 ,
aspect_h = 16 ,
length = 1.0 ,
} ,
} ,
" digtron_motor.png " ,
} ,
on_construct = function ( pos )
local meta = minetest.env : get_meta ( pos )
meta : set_string ( " formspec " ,
" size[3.5,1] " ..
default.gui_bg ..
default.gui_bg_img ..
default.gui_slots ..
" field[0.5,0.8;1,0.1;period;Periodicity;${period}] " ..
" tooltip[period;Digger will dig once every n steps. These steps are globally aligned, all diggers with the same period and offset will dig on the same location.] " ..
" field[1.5,0.8;1,0.1;offset;Offset;${offset}] " ..
" tooltip[offset;Offsets the start of periodicity counting by this amount. For example, a digger with period 2 and offset 0 digs every even-numbered node and one with period 2 and offset 1 digs every odd-numbered node.] " ..
" button_exit[2.2,0.5;1,0.1;set;Save] " ..
" tooltip[set;Saves settings] "
)
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meta : set_int ( " period " , 1 )
meta : set_int ( " offset " , 0 )
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local inv = meta : get_inventory ( )
inv : set_size ( " main " , 1 )
end ,
on_receive_fields = function ( pos , formname , fields , sender )
local meta = minetest.get_meta ( pos )
local period = tonumber ( fields.period )
local offset = tonumber ( fields.offset )
if period and period > 0 then
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meta : set_int ( " period " , math.floor ( tonumber ( fields.period ) ) )
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end
if offset then
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meta : set_int ( " offset " , math.floor ( tonumber ( fields.offset ) ) )
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end
end ,
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-- returns fuel_cost, item_produced
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execute_dig = function ( pos , protected_nodes , nodes_dug , controlling_coordinate )
local facing = minetest.get_node ( pos ) . param2
local digpos = digtron.find_new_pos ( pos , facing )
if protected_nodes : get ( digpos.x , digpos.y , digpos.z ) then
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return 0 , nil
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end
local meta = minetest.get_meta ( pos )
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if ( digpos [ controlling_coordinate ] + meta : get_int ( " offset " ) ) % meta : get_int ( " period " ) ~= 0 then
return 0 , nil
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end
return digtron.mark_diggable ( digpos , nodes_dug )
end ,
} )
-- A special-purpose digger to deal with stuff like sand and gravel in the ceiling. It always digs (no periodicity or offset), but it only digs falling_block nodes
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minetest.register_node ( " digtron:soft_digger " , {
description = " Soft Material Digger Head " ,
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groups = { cracky = 3 , stone = 1 , digtron = 3 } ,
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drop = ' digtron:soft_digger ' ,
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paramtype = " light " ,
paramtype2 = ' facedir ' ,
drawtype = " nodebox " ,
node_box = {
type = " fixed " ,
fixed = digger_nodebox ,
} ,
-- Aims in the +Z direction by default
tiles = {
" digtron_plate.png^[transformR90^[colorize:#88880030 " ,
" digtron_plate.png^[transformR270^[colorize:#88880030 " ,
" digtron_plate.png^[colorize:#88880030 " ,
" digtron_plate.png^[transformR180^[colorize:#88880030 " ,
{
name = " digtron_digger.png^[colorize:#88880030 " ,
animation = {
type = " vertical_frames " ,
aspect_w = 16 ,
aspect_h = 16 ,
length = 1.0 ,
} ,
} ,
" digtron_motor.png^[colorize:#88880030 " ,
} ,
can_dig = function ( pos , player )
local meta = minetest.get_meta ( pos )
local inv = meta : get_inventory ( )
return inv : is_empty ( " main " ) and inv : is_empty ( " inv " )
end ,
execute_dig = function ( pos , protected_nodes , nodes_dug , controlling_coordinate )
local facing = minetest.get_node ( pos ) . param2
local digpos = digtron.find_new_pos ( pos , facing )
if protected_nodes : get ( digpos.x , digpos.y , digpos.z ) then
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return 0 , nil
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end
local target_node = minetest.get_node ( digpos )
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if minetest.get_item_group ( target_node.name , " crumbly " ) ~= 0 or
minetest.get_item_group ( target_node.name , " choppy " ) ~= 0 or
minetest.get_item_group ( target_node.name , " snappy " ) ~= 0 or
minetest.get_item_group ( target_node.name , " oddly_breakable_by_hand " ) ~= 0 or
minetest.get_item_group ( target_node.name , " fleshy " ) ~= 0 then
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return digtron.mark_diggable ( digpos , nodes_dug )
end
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return 0 , nil
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end ,
} )