mirror of
https://github.com/sys4-fr/server-nalc.git
synced 2024-09-08 13:50:25 +02:00
286 lines
8.2 KiB
Lua
Executable File
286 lines
8.2 KiB
Lua
Executable File
function pipeworks.tube_item(pos, item)
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error("obsolete pipeworks.tube_item() called; change caller to use pipeworks.tube_inject_item() instead")
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end
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function pipeworks.tube_inject_item(pos, start_pos, velocity, item)
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-- Take item in any format
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local stack = ItemStack(item)
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local obj = luaentity.add_entity(pos, "pipeworks:tubed_item")
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obj:set_item(stack:to_string())
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obj.start_pos = vector.new(start_pos)
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obj:setvelocity(velocity)
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--obj:set_color("red") -- todo: this is test-only code
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return obj
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end
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-- adding two tube functions
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-- can_remove(pos,node,stack,dir) returns the maximum number of items of that stack that can be removed
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-- remove_items(pos,node,stack,dir,count) removes count items and returns them
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-- both optional w/ sensible defaults and fallback to normal allow_* function
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-- XXX: possibly change insert_object to insert_item
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local adjlist={{x=0,y=0,z=1},{x=0,y=0,z=-1},{x=0,y=1,z=0},{x=0,y=-1,z=0},{x=1,y=0,z=0},{x=-1,y=0,z=0}}
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function pipeworks.notvel(tbl, vel)
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local tbl2={}
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for _,val in ipairs(tbl) do
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if val.x ~= -vel.x or val.y ~= -vel.y or val.z ~= -vel.z then table.insert(tbl2, val) end
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end
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return tbl2
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end
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local function go_next(pos, velocity, stack)
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local next_positions = {}
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local max_priority = 0
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local cnode = minetest.get_node(pos)
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local cmeta = minetest.get_meta(pos)
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local can_go
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local speed = math.abs(velocity.x + velocity.y + velocity.z)
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if speed == 0 then
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speed = 1
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end
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local vel = {x = velocity.x/speed, y = velocity.y/speed, z = velocity.z/speed,speed=speed}
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if speed >= 4.1 then
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speed = 4
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elseif speed >= 1.1 then
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speed = speed - 0.1
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else
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speed = 1
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end
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vel.speed = speed
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if minetest.registered_nodes[cnode.name] and minetest.registered_nodes[cnode.name].tube and minetest.registered_nodes[cnode.name].tube.can_go then
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can_go = minetest.registered_nodes[cnode.name].tube.can_go(pos, cnode, vel, stack)
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else
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can_go = pipeworks.notvel(adjlist, vel)
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end
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for _, vect in ipairs(can_go) do
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local npos = vector.add(pos, vect)
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local node = minetest.get_node(npos)
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local reg_node = minetest.registered_nodes[node.name]
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if reg_node then
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local tube_def = reg_node.tube
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local tubedevice = minetest.get_item_group(node.name, "tubedevice")
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local tube_priority = (tube_def and tube_def.priority) or 100
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if tubedevice > 0 and tube_priority >= max_priority then
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if not tube_def or not tube_def.can_insert or
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tube_def.can_insert(npos, node, stack, vect) then
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if tube_priority > max_priority then
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max_priority = tube_priority
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next_positions = {}
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end
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next_positions[#next_positions + 1] = {pos = npos, vect = vect}
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end
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end
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end
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end
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if not next_positions[1] then
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return false, nil
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end
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local n = (cmeta:get_int("tubedir") % (#next_positions)) + 1
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if pipeworks.enable_cyclic_mode then
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cmeta:set_int("tubedir", n)
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end
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local new_velocity = vector.multiply(next_positions[n].vect, vel.speed)
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return true, new_velocity
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end
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minetest.register_entity("pipeworks:tubed_item", {
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initial_properties = {
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hp_max = 1,
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physical = false,
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collisionbox = {0.1, 0.1, 0.1, 0.1, 0.1, 0.1},
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visual = "wielditem",
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visual_size = {x = 0.15, y = 0.15},
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textures = {""},
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spritediv = {x = 1, y = 1},
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initial_sprite_basepos = {x = 0, y = 0},
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is_visible = false,
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},
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physical_state = false,
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from_data = function(self, itemstring)
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local stack = ItemStack(itemstring)
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local itemtable = stack:to_table()
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local itemname = nil
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if itemtable then
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itemname = stack:to_table().name
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end
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local item_texture = nil
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local item_type = ""
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if minetest.registered_items[itemname] then
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item_texture = minetest.registered_items[itemname].inventory_image
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item_type = minetest.registered_items[itemname].type
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end
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self.object:set_properties({
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is_visible = true,
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textures = {stack:get_name()}
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})
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local def = stack:get_definition()
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self.object:setyaw((def and def.type == "node") and 0 or math.pi * 0.25)
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end,
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get_staticdata = luaentity.get_staticdata,
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on_activate = function(self, staticdata) -- Legacy code, should be replaced later by luaentity.on_activate
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if staticdata == "" or staticdata == nil then
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return
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end
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if staticdata == "toremove" then
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self.object:remove()
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return
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end
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local item = minetest.deserialize(staticdata)
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pipeworks.tube_inject_item(self.object:getpos(), item.start_pos, item.velocity, item.itemstring)
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self.object:remove()
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end,
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})
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minetest.register_entity("pipeworks:color_entity", {
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initial_properties = {
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hp_max = 1,
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physical = false,
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collisionbox = {0.1, 0.1, 0.1, 0.1, 0.1, 0.1},
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visual = "cube",
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visual_size = {x = 3.5, y = 3.5, z = 3.5}, -- todo: find correct size
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textures = {""},
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is_visible = false,
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},
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physical_state = false,
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from_data = function(self, color)
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local t = "pipeworks_color_"..color..".png"
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local prop = {
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is_visible = true,
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visual = "cube",
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textures = {t, t, t, t, t, t} -- todo: textures
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}
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self.object:set_properties(prop)
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end,
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get_staticdata = luaentity.get_staticdata,
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on_activate = luaentity.on_activate,
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})
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luaentity.register_entity("pipeworks:tubed_item", {
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itemstring = '',
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item_entity = nil,
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color_entity = nil,
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color = nil,
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start_pos = nil,
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set_item = function(self, item)
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local itemstring = ItemStack(item):to_string() -- Accept any input format
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if self.itemstring == itemstring then
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return
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end
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if self.item_entity then
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self:remove_attached_entity(self.item_entity)
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end
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self.itemstring = itemstring
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self.item_entity = self:add_attached_entity("pipeworks:tubed_item", itemstring)
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end,
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set_color = function(self, color)
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if self.color == color then
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return
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end
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self.color = color
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if self.color_entity then
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self:remove_attached_entity(self.color_entity)
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end
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if color then
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self.color_entity = self:add_attached_entity("pipeworks:color_entity", color)
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else
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self.color_entity = nil
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end
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end,
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on_step = function(self, dtime)
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if self.start_pos == nil then
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local pos = self:getpos()
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self.start_pos = vector.round(pos)
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self:setpos(pos)
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end
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local pos = self:getpos()
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local stack = ItemStack(self.itemstring)
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local drop_pos
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local velocity = self:getvelocity()
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local moved = false
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local speed = math.abs(velocity.x + velocity.y + velocity.z)
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if speed == 0 then
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speed = 1
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moved = true
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end
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local vel = {x = velocity.x / speed, y = velocity.y / speed, z = velocity.z / speed, speed = speed}
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if vector.distance(pos, self.start_pos) >= 1 then
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self.start_pos = vector.add(self.start_pos, vel)
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moved = true
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end
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minetest.load_position(self.start_pos)
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local node = minetest.get_node(self.start_pos)
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if moved and minetest.get_item_group(node.name, "tubedevice_receiver") == 1 then
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local leftover
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if minetest.registered_nodes[node.name].tube and minetest.registered_nodes[node.name].tube.insert_object then
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leftover = minetest.registered_nodes[node.name].tube.insert_object(self.start_pos, node, stack, vel)
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else
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leftover = stack
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end
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if leftover:is_empty() then
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self:remove()
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return
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end
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velocity = vector.multiply(velocity, -1)
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self:setvelocity(velocity)
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self:set_item(leftover:to_string())
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return
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end
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if moved then
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local found_next, new_velocity = go_next(self.start_pos, velocity, stack) -- todo: color
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if not found_next then
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drop_pos = minetest.find_node_near(vector.add(self.start_pos, velocity), 1, "air")
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if drop_pos then
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minetest.item_drop(stack, "", drop_pos)
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self:remove()
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return
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end
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end
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if new_velocity and not vector.equals(velocity, new_velocity) then
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self:setpos(self.start_pos)
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self:setvelocity(new_velocity)
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end
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end
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end
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})
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if minetest.get_modpath("mesecons_mvps") then
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mesecon.register_mvps_unmov("pipeworks:tubed_item")
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mesecon.register_mvps_unmov("pipeworks:color_entity")
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mesecon.register_on_mvps_move(function(moved_nodes)
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local moved = {}
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for _, n in ipairs(moved_nodes) do
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moved[minetest.hash_node_position(n.oldpos)] = vector.subtract(n.pos, n.oldpos)
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end
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for id, entity in pairs(luaentity.entities) do
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if entity.name == "pipeworks:tubed_item" then
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local pos = entity:getpos()
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local rpos = vector.round(pos)
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local dir = moved[minetest.hash_node_position(rpos)]
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if dir then
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entity:setpos(vector.add(pos, dir))
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entity.start_pos = vector.add(entity.start_pos, dir)
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end
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end
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end
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end)
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end
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