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minetest.register_craftitem("technic:injector", {
description = "Injector",
stack_max = 99,
})
minetest.register_node("technic:injector", {
description = "Injector",
tiles = {"technic_iron_chest_top.png", "technic_iron_chest_top.png", "technic_iron_chest_side.png",
"technic_iron_chest_side.png", "technic_iron_chest_side.png", "technic_iron_chest_front.png"},
paramtype2 = "facedir",
groups = {snappy=2,choppy=2,oddly_breakable_by_hand=2},
legacy_facedir_simple = true,
sounds = default.node_sound_wood_defaults(),
on_construct = function(pos)
local meta = minetest.env:get_meta(pos)
meta:set_string("formspec",
"invsize[9,9;]"..
"list[current_name;main;0,2;8,2;]"..
"list[current_player;main;0,5;8,4;]")
meta:set_string("infotext", "Injector")
local inv = meta:get_inventory()
inv:set_size("main", 8*4)
end,
can_dig = function(pos,player)
local meta = minetest.env:get_meta(pos);
local inv = meta:get_inventory()
return inv:is_empty("main")
end,
on_punch = function (pos, node, puncher)
local meta = minetest.env:get_meta(pos);
local inv = meta:get_inventory()
for _,stack in ipairs(inv:get_list("main")) do
if stack:get_name() ~="" then
inv:remove_item("main",stack)
item1=tube_item({x=pos.x+.5,y=pos.y,z=pos.z},stack)
return
end
end
end,
})
function tube_item(pos, item)
-- Take item in any format
local stack = ItemStack(item)
local obj = minetest.env:add_entity(pos, "technic:tubed_item")
obj:get_luaentity():set_item(stack:to_string())
obj:get_luaentity().start_pos = {x=pos.x,y=pos.y,z=pos.z}
obj:setacceleration({x=0, y=0, z=0})
pos.x=pos.x+1
local meta = minetest.env:get_meta(pos)
if meta:get_int("tubelike")==1 then obj:setvelocity({x=1, y=0, z=0}) return obj end
pos.x=pos.x-2
meta = minetest.env:get_meta(pos)
if meta:get_int("tubelike")==1 then obj:setvelocity({x=-1, y=0, z=0}) return obj end
pos.x=pos.x+1
pos.z=pos.z+1
meta = minetest.env:get_meta(pos)
if meta:get_int("tubelike")==1 then obj:setvelocity({x=0, y=0, z=1}) return obj end
pos.z=pos.z-2
meta = minetest.env:get_meta(pos)
if meta:get_int("tubelike")==1 then obj:setvelocity({x=0, y=0, z=-1}) return obj end
pos.z=pos.z+1
pos.y=pos.y+1
meta = minetest.env:get_meta(pos)
if meta:get_int("tubelike")==1 then obj:setvelocity({x=0, y=1, z=0}) return obj end
pos.y=pos.y-2
meta = minetest.env:get_meta(pos)
if meta:get_int("tubelike")==1 then obj:setvelocity({x=0, y=-2, z=0}) return obj end
pos.y=pos.y+1
return obj
end
minetest.register_entity("technic:tubed_item", {
initial_properties = {
hp_max = 1,
physical = false,
collisionbox = {0,0,0,0,0,0},
visual = "sprite",
visual_size = {x=0.5, y=0.5},
textures = {""},
spritediv = {x=1, y=1},
initial_sprite_basepos = {x=0, y=0},
is_visible = false,
start_pos={}
},
itemstring = '',
physical_state = false,
set_item = function(self, itemstring)
self.itemstring = itemstring
local stack = ItemStack(itemstring)
local itemtable = stack:to_table()
local itemname = nil
if itemtable then
itemname = stack:to_table().name
end
local item_texture = nil
local item_type = ""
if minetest.registered_items[itemname] then
item_texture = minetest.registered_items[itemname].inventory_image
item_type = minetest.registered_items[itemname].type
end
prop = {
is_visible = true,
visual = "sprite",
textures = {"unknown_item.png"}
}
if item_texture and item_texture ~= "" then
prop.visual = "sprite"
prop.textures = {item_texture}
prop.visual_size = {x=0.3, y=0.3}
else
prop.visual = "wielditem"
prop.textures = {itemname}
prop.visual_size = {x=0.15, y=0.15}
end
self.object:set_properties(prop)
end,
get_staticdata = function(self)
return minetest.serialize({
itemstring=self.itemstring,
velocity=self.object:getvelocity(),
start_pos=self.start_pos
})
end,
on_activate = function(self, staticdata)
if staticdata=="" or staticdata==nil then return end
local item = minetest.deserialize(staticdata)
local stack = ItemStack(item.itemstring)
local itemtable = stack:to_table()
local itemname = nil
if itemtable then
itemname = stack:to_table().name
end
if itemname then
self.start_pos=item.start_pos
self.object:setvelocity(item.velocity)
self.object:setacceleration({x=0, y=0, z=0})
self.object:setpos(item.start_pos)
end
self:set_item(item.itemstring)
end,
on_step = function(self, dtime)
if self.start_pos then
local pos = self.object:getpos()
local node = minetest.env:get_node(pos)
local meta = minetest.env:get_meta(pos)
tubelike=meta:get_int("tubelike")
local velocity=self.object:getvelocity()
if not velocity then return end
if math.abs(velocity.x)==1 then
local next_node=math.abs(pos.x-self.start_pos.x)
if next_node >= 1 then
self.start_pos.x=self.start_pos.x+velocity.x
if check_pos_vector (self.start_pos, velocity)==0 then
check_next_step (self.start_pos, velocity)
self.object:setpos(self.start_pos)
self.object:setvelocity(velocity)
return
end
end
end
if math.abs(velocity.y)==1 then
local next_node=math.abs(pos.y-self.start_pos.y)
if next_node >= 1 then
self.start_pos.y=self.start_pos.y+velocity.y
if check_pos_vector (self.start_pos, velocity)==0 then
check_next_step (self.start_pos, velocity)
self.object:setpos(self.start_pos)
self.object:setvelocity(velocity)
return
end
end
end
if math.abs(velocity.z)==1 then
local next_node=math.abs(pos.z-self.start_pos.z)
if next_node >= 1 then
self.start_pos.z=self.start_pos.z+velocity.z
if check_pos_vector (self.start_pos, velocity)==0 then
check_next_step (self.start_pos, velocity)
self.object:setpos(self.start_pos)
self.object:setvelocity(velocity)
return
end
end
end
end
end
})
function check_next_step (pos,velocity)
local meta
local tubelike
if velocity.x==0 then
meta = minetest.env:get_meta({x=pos.x-1,y=pos.y,z=pos.z})
tubelike=meta:get_int("tubelike")
if tubelike==1 then velocity.x=-1 velocity.y=0 velocity.z=0 return end
meta = minetest.env:get_meta({x=pos.x+1,y=pos.y,z=pos.z})
tubelike=meta:get_int("tubelike")
if tubelike==1 then velocity.x=1 velocity.y=0 velocity.z=0 return end
end
if velocity.z==0 then
meta = minetest.env:get_meta({x=pos.x,y=pos.y,z=pos.z+1})
tubelike=meta:get_int("tubelike")
if tubelike==1 then velocity.x=0 velocity.y=0 velocity.z=1 return end
meta = minetest.env:get_meta({x=pos.x,y=pos.y,z=pos.z-1})
tubelike=meta:get_int("tubelike")
if tubelike==1 then velocity.x=0 velocity.y=0 velocity.z=-1 return end
end
if velocity.y==0 then
meta = minetest.env:get_meta({x=pos.x,y=pos.y+1,z=pos.z})
tubelike=meta:get_int("tubelike")
if tubelike==1 then velocity.x=0 velocity.y=1 velocity.z=0 return end
meta = minetest.env:get_meta({x=pos.x,y=pos.y-1,z=pos.z})
tubelike=meta:get_int("tubelike")
if tubelike==1 then velocity.x=0 velocity.y=-1 velocity.z=0 return end
end
--velocity.x=0
--velocity.y=0
--velocity.z=0
end
function check_pos_vector (pos,velocity)
added={}
added.x=pos.x+velocity.x
added.y=pos.y+velocity.y
added.z=pos.z+velocity.z
local meta=minetest.env:get_meta(added)
--print(dump(added).." : "..tubelike)
if meta:get_int("tubelike")==1 then return 1 end
return 0
end
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