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Actions: Add ability for NPC to fully use a furnace. 

Add ability to add tasks to action queue.
This commit is contained in:
zorman2000 2017-01-13 22:54:27 -05:00
parent 137f02e863
commit 9556e76b79
3 changed files with 177 additions and 44 deletions
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145
actions/actions.lua
View File

@ -93,15 +93,20 @@ end
function npc.actions.walk_step(args)
local self = args.self
local dir = args.dir
local speed = args.speed
local vel = {}
-- Set default node per seconds
if speed == nil then
speed = 0.98
end
if dir == npc.direction.north then
vel = {x=0, y=0, z=0.98}
vel = {x=0, y=0, z=speed}
elseif dir == npc.direction.east then
vel = {x=0.98, y=0, z=0}
vel = {x=speed, y=0, z=0}
elseif dir == npc.direction.south then
vel = {x=0, y=0, z=-0.98}
vel = {x=0, y=0, z=-speed}
elseif dir == npc.direction.west then
vel = {x=-0.98, y=0, z=0}
vel = {x=-speed, y=0, z=0}
end
-- Rotate NPC
npc.actions.rotate({self=self, dir=dir})
@ -228,7 +233,7 @@ function npc.actions.take_item_from_external_inventory(args)
if player ~= nil then
inv = minetest.get_inventory({type="player", name=player})
else
inv = minetest.get_inventory({type="node", pos})
inv = minetest.get_inventory({type="node", pos=pos})
end
-- Create ItemSTack to take from external inventory
local item = ItemStack(item_name.." "..count)
@ -255,7 +260,7 @@ function npc.actions.check_external_inventory_contains_item(args)
if player ~= nil then
inv = minetest.get_inventory({type="player", name=player})
else
inv = minetest.get_inventory({type="node", pos})
inv = minetest.get_inventory({type="node", pos=pos})
end
-- Create ItemStack for checking the external inventory
@ -315,16 +320,66 @@ end
-- with the fuel items the NPC will take whatever was cooked and whatever
-- remained to cook. The function received the position of the furnace
-- to use, and the item to cook in furnace. Item is an itemstring
function npc.actions.use_furnace(self, pos, item)
-- Check if any item in the NPC inventory serve as fuel
-- For now, just use some specific items as fuels
local fuels = {"default:leaves", "default:tree", ""}
-- Check if NPC has a fuel item
for i = 1,2 do
local fuel_item = npc.inventory_contains(self, fuels[i])
local src_item = npc.inventory_contains(self, item)
function npc.actions.use_furnace(self, pos, item, freeze)
-- Define which items are usable as fuels. The NPC
-- will mainly use this as fuels to avoid getting useful
-- items (such as coal lumps) for burning
local fuels = {"default:leaves",
"default:pine_needles",
"default:tree",
"default:acacia_tree",
"default:aspen_tree",
"default:jungletree",
"default:pine_tree",
"default:coalblock",
"farming:straw"}
-- Check if NPC has item to cook
local src_item = npc.inventory_contains(self, npc.get_item_name(item))
if src_item == nil then
-- Unable to cook item that is not in inventory
return false
end
-- Check if NPC has a fuel item
for i = 1,9 do
local fuel_item = npc.inventory_contains(self, fuels[i])
if fuel_item ~= nil then
-- Get fuel item's burn time
local fuel_time =
minetest.get_craft_result({method="fuel", width=1, items={ItemStack(fuel_item.item_string)}}).time
local total_fuel_time = fuel_time * npc.get_item_count(fuel_item.item_string)
minetest.log("Fuel time: "..dump(fuel_time))
-- Get item to cook's cooking time
local cook_result =
minetest.get_craft_result({method="cooking", width=1, items={ItemStack(src_item.item_string)}})
local total_cook_time = cook_result.time * npc.get_item_count(item)
minetest.log("Cook: "..dump(cook_result))
minetest.log("Total cook time: "..total_cook_time
..", total fuel burn time: "..dump(total_fuel_time))
-- Check if there is enough fuel to cook all items
if total_cook_time > total_fuel_time then
-- Don't have enough fuel to cook item. Return the difference
-- so it may help on trying to acquire the fuel later.
-- NOTE: Yes, returning here means that NPC could probably have other
-- items usable as fuels and ignore them. This should be ok for now,
-- considering that fuel items are ordered in a way where cheaper, less
-- useless items come first, saving possible valuable items.
return cook_result.time - fuel_time
end
-- Calculate how much fuel is needed
local fuel_amount = total_cook_time / fuel_time
if fuel_amount < 1 then
fuel_amount = 1
end
minetest.log("Amount of fuel needed: "..fuel_amount)
if fuel_item ~= nil and src_item ~= nil then
-- Put this item on the fuel inventory list of the furnace
local args = {
self = self,
@ -332,7 +387,7 @@ function npc.actions.use_furnace(self, pos, item)
pos = pos,
inv_list = "fuel",
item_name = npc.get_item_name(fuel_item.item_string),
count = npc.get_item_count(fuel_item.item_string)
count = fuel_amount
}
npc.add_action(self, npc.actions.put_item_on_external_inventory, args)
-- Put the item that we want to cook on the furnace
@ -342,16 +397,39 @@ function npc.actions.use_furnace(self, pos, item)
pos = pos,
inv_list = "src",
item_name = npc.get_item_name(src_item.item_string),
count = npc.get_item_count(src_item.item_string),
count = npc.get_item_count(item),
is_furnace = true
}
npc.add_action(self, npc.actions.put_item_on_external_inventory, args)
-- TODO: Need to add a way to calculate how many seconds will pass
-- until the furnace is done, or at least the items that we expect
-- to get (assume all items to be cooked are the ones ewe expect back)
-- Then, add that many stand actions, then an action to take the items.
-- Now, set NPC to wait until furnace is done.
minetest.log("Setting wait action for "..dump(total_cook_time))
npc.add_action(self, npc.actions.set_interval, {self=self, interval=total_cook_time, freeze=freeze})
-- Reset timer
npc.add_action(self, npc.actions.set_interval, {self=self, interval=1, freeze=true})
-- If freeze is false, then we will have to find the way back to the furnace
-- once cooking is done.
if freeze == false then
minetest.log("Adding walk to position to wandering: "..dump(pos))
npc.add_task(self, npc.actions.walk_to_pos, {self=self, end_pos=pos, walkable={}})
end
-- Take cooked items back
args = {
self = self,
player = nil,
pos = pos,
inv_list = "dst",
item_name = cook_result.item:get_name(),
count = npc.get_item_count(item),
is_furnace = false
}
minetest.log("Taking item back: "..dump(pos))
npc.add_action(self, npc.actions.take_item_from_external_inventory, args)
minetest.log("Inventory: "..dump(self.inventory))
return true
end
@ -465,9 +543,17 @@ end
-- is included, which is a table of node names, these nodes are
-- going to be considered walkable for the algorithm to find a
-- path.
function npc.actions.walk_to_pos(self, end_pos, walkable_nodes)
function npc.actions.walk_to_pos(args)
local start_pos = self.object:getpos()
local self = args.self
local end_pos = args.end_pos
local walkable_nodes = args.walkable
-- Round start_pos to make sure it can find start and end
local start_pos = vector.round(self.object:getpos())
-- Use y of end_pos (this can only be done assuming flat terrain)
start_pos.y = self.object:getpos().y
minetest.log("Walk to pos: Using start position: "..dump(start_pos))
-- Set walkable nodes to empty if the parameter hasn't been used
if walkable_nodes == nil then
@ -513,7 +599,18 @@ function npc.actions.walk_to_pos(self, end_pos, walkable_nodes)
if door_opened then
-- Stop to close door, this avoids misplaced movements later on
npc.add_action(self, npc.actions.stand, {self=self, dir=(dir + 2)% 4})
local x_adj, z_adj = 0, 0
if dir == 0 then
z_adj = 0.1
elseif dir == 1 then
x_adj = 0.1
elseif dir == 2 then
z_adj = -0.1
elseif dir == 3 then
x_adj = -0.1
end
local pos_on_close = {x=path[i+1].pos.x + x_adj, y=path[i+1].pos.y + 1, z=path[i+1].pos.z + z_adj}
npc.add_action(self, npc.actions.stand, {self=self, dir=(dir + 2)% 4, pos=pos_on_close})
-- Close door
npc.add_action(self, npc.actions.use_door, {self=self, pos=path[i+1].pos, action=npc.actions.const.doors.action.CLOSE})

2
actions/pathfinder.lua
View File

@ -201,7 +201,7 @@ end
-- for the pathfinding algorithm to use
function pathfinder.find_start_and_end_pos(map)
-- This is for debug
--print_map(map)
print_map(map)
local result = {}
for z,row in pairs(map) do
for x,node in pairs(row) do

74
npc.lua
View File

@ -188,22 +188,52 @@ end
function npc.add_action(self, action, arguments)
--self.freeze = true
--minetest.log("Current Pos: "..dump(self.object:getpos()))
local action_entry = {action=action, args=arguments}
local action_entry = {action=action, args=arguments, is_task=false}
--minetest.log(dump(action_entry))
table.insert(self.actions.queue, action_entry)
end
-- This function adds task actions in-place, as opposed to
-- at the end of the queue. This allows for continued order
function npc.add_task(self, task, args)
local action_entry = {action=task, args=args, is_task=true}
table.insert(self.actions.queue, action_entry)
end
-- This function removes the first action in the action queue
-- and then exexcutes it
-- and then executes it
function npc.execute_action(self)
local result = nil
if table.getn(self.actions.queue) == 0 then
-- Keep state the same if there are no more actions in actions queue
return self.freeze
end
minetest.log("Executing action")
local action_obj = self.actions.queue[1]
local result = action_obj.action(action_obj.args)
table.remove(self.actions.queue, 1)
-- If the entry is a task, then push all this new operations in
-- stack fashion
if action_obj.is_task == true then
minetest.log("Executing task")
-- Remove from queue
table.remove(self.actions.queue, 1)
-- Backup current queue
local backup_queue = self.actions.queue
-- Clear queue
self.actions.queue = {}
-- Now, execute the task with its arguments
action_obj.action(action_obj.args)
-- After all new actions has been added by task, add the previously
-- queued actions back
for i = 1, #backup_queue do
table.insert(self.actions.queue, backup_queue[i])
end
minetest.log("New actions queue: "..dump(self))
else
minetest.log("Executing action")
-- Execute action as normal
result = action_obj.action(action_obj.args)
-- Remove executed action from queue
table.remove(self.actions.queue, 1)
end
return result
end
@ -250,6 +280,10 @@ local function choose_spawn_items(self)
local currency_item_count = math.random(5, 10)
npc.add_item_to_inventory(self, npc.trade.prices.currency.tier3, currency_item_count)
-- For test
npc.add_item_to_inventory(self, "default:tree", 10)
npc.add_item_to_inventory(self, "default:cobble", 10)
minetest.log("Initial inventory: "..dump(self.inventory))
end
@ -352,7 +386,7 @@ local function npc_spawn(self, pos)
ent.places_map = {}
-- Temporary initialization of actions for testing
local nodes = npc.places.find_sittable_nodes_nearby(ent.object:getpos(), 20)
local nodes = npc.places.find_node_nearby(ent.object:getpos(), {"default:furnace"}, 20)
minetest.log("Found nodes: "..dump(nodes))
--local path = pathfinder.find_path(ent.object:getpos(), nodes[1], 20)
@ -361,14 +395,14 @@ local function npc_spawn(self, pos)
--npc.add_action(ent, npc.actions.stand, {self = ent})
--npc.add_action(ent, npc.actions.stand, {self = ent})
if nodes[1] ~= nil then
npc.actions.walk_to_pos(ent, nodes[1], {})
npc.actions.use_sittable(ent, nodes[1], npc.actions.const.sittable.SIT)
npc.add_action(ent, npc.actions.sit, {self = ent})
npc.add_task(ent, npc.actions.walk_to_pos, {self=ent, end_pos=nodes[1], walkable={}})
npc.actions.use_furnace(ent, nodes[1], "default:cobble 10", false)
--npc.add_action(ent, npc.actions.sit, {self = ent})
-- npc.add_action(ent, npc.actions.lay, {self = ent})
-- npc.add_action(ent, npc.actions.lay, {self = ent})
-- npc.add_action(ent, npc.actions.lay, {self = ent})
npc.actions.use_sittable(ent, nodes[1], npc.actions.const.sittable.GET_UP)
npc.add_action(ent, npc.actions.set_interval, {self=ent, interval=10, freeze=true})
--npc.actions.use_sittable(ent, nodes[1], npc.actions.const.sittable.GET_UP)
--npc.add_action(ent, npc.actions.set_interval, {self=ent, interval=10, freeze=true})
npc.add_action(ent, npc.actions.freeze, {freeze = false})
end
@ -496,14 +530,16 @@ mobs:register_mob("advanced_npc:npc", {
do_custom = function(self, dtime)
-- Timer function for casual traders to reset their trade offers
self.trader_data.change_offers_timer = self.trader_data.change_offers_timer + dtime
-- Check if time has come to change offers
if self.trader_data.trader_status == npc.trade.CASUAL and
self.trader_data.change_offers_timer >= self.trader_data.change_offers_timer_interval then
-- Reset timer
self.trader_data.change_offers_timer = 0
-- Re-select casual trade offers
select_casual_trade_offers(self)
if self.trader_data ~= nil then
self.trader_data.change_offers_timer = self.trader_data.change_offers_timer + dtime
-- Check if time has come to change offers
if self.trader_data.trader_status == npc.trade.CASUAL and
self.trader_data.change_offers_timer >= self.trader_data.change_offers_timer_interval then
-- Reset timer
self.trader_data.change_offers_timer = 0
-- Re-select casual trade offers
select_casual_trade_offers(self)
end
end
-- Timer function for gifts