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Add charge set/get callbacks (#600)

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For the easier making of multi mod chargeable tools.
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sfence 2022-06-06 18:53:50 +02:00 committed by GitHub
parent d2b68a6bef
commit 0211c582e9
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 52 additions and 27 deletions
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6
technic/doc/api.md
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@ -144,6 +144,12 @@ Additional definition fields:
* Specifies the machine's node name to use when it's not connected connected to a network
* `<itemdef>.technic_on_disable = function(pos, node) ...`
* This callback is run when the machine is no longer connected to a technic-powered network.
* `<itemdef>.technic_get_charge = function(itemstack) ...`
* This optional callback will be used to get itemstack charge and max\_charge
* Have to return values `charge, max_charge`
* Etc. `local charge, maxcharge = itemdef.technic_get_charge(itemstack)`
* `<itemdef>.technic_set_charge = function(itemstack, charge) ...`
* This optional callback will be used to set itemstack charge
## Node Metadata fields

73
technic/machines/register/battery_box.lua
View File

@ -409,6 +409,30 @@ minetest.register_on_player_receive_fields(
end
)
local function default_get_charge(itemstack)
-- check if is chargable
local tool_name = itemstack:get_name()
if not technic.power_tools[tool_name] then
return 0, 0
end
-- Set meta data for the tool if it didn't do it itself
local item_meta = minetest.deserialize(itemstack:get_metadata()) or {}
if not item_meta.charge then
item_meta.charge = 0
end
return item_meta.charge, technic.power_tools[tool_name]
end
local function default_set_charge(itemstack, charge)
local tool_name = itemstack:get_name()
if technic.power_tools[tool_name] then
technic.set_RE_wear(itemstack, charge, technic.power_tools[tool_name])
end
local item_meta = minetest.deserialize(itemstack:get_metadata()) or {}
item_meta.charge = charge
itemstack:set_metadata(minetest.serialize(item_meta))
end
function technic.charge_tools(meta, batt_charge, charge_step)
local inv = meta:get_inventory()
if inv:is_empty("src") then
@ -416,18 +440,18 @@ function technic.charge_tools(meta, batt_charge, charge_step)
end
local src_stack = inv:get_stack("src", 1)
local tool_name = src_stack:get_name()
if not technic.power_tools[tool_name] then
-- get callbacks
local src_def = src_stack:get_definition()
local technic_get_charge = src_def.technic_get_charge or default_get_charge
local technic_set_charge = src_def.technic_set_charge or default_set_charge
-- get tool charge
local tool_charge, item_max_charge = technic_get_charge(src_stack)
if item_max_charge==0 then
return batt_charge, false
end
-- Set meta data for the tool if it didn't do it itself
local src_meta = minetest.deserialize(src_stack:get_metadata()) or {}
if not src_meta.charge then
src_meta.charge = 0
end
-- Do the charging
local item_max_charge = technic.power_tools[tool_name]
local tool_charge = src_meta.charge
if tool_charge >= item_max_charge then
return batt_charge, true
elseif batt_charge <= 0 then
@ -437,9 +461,7 @@ function technic.charge_tools(meta, batt_charge, charge_step)
charge_step = math.min(charge_step, item_max_charge - tool_charge)
tool_charge = tool_charge + charge_step
batt_charge = batt_charge - charge_step
technic.set_RE_wear(src_stack, tool_charge, item_max_charge)
src_meta.charge = tool_charge
src_stack:set_metadata(minetest.serialize(src_meta))
technic_set_charge(src_stack, tool_charge)
inv:set_stack("src", 1, src_stack)
return batt_charge, (tool_charge == item_max_charge)
end
@ -450,21 +472,20 @@ function technic.discharge_tools(meta, batt_charge, charge_step, max_charge)
if inv:is_empty("dst") then
return batt_charge, false
end
local srcstack = inv:get_stack("dst", 1)
local toolname = srcstack:get_name()
if technic.power_tools[toolname] == nil then
local src_stack = inv:get_stack("dst", 1)
-- get callbacks
local src_def = src_stack:get_definition()
local technic_get_charge = src_def.technic_get_charge or default_get_charge
local technic_set_charge = src_def.technic_set_charge or default_set_charge
-- get tool charge
local tool_charge, item_max_charge = technic_get_charge(src_stack)
if item_max_charge==0 then
return batt_charge, false
end
-- Set meta data for the tool if it didn't do it itself :-(
local src_meta = minetest.deserialize(srcstack:get_metadata())
src_meta = src_meta or {}
if not src_meta.charge then
src_meta.charge = 0
end
-- Do the discharging
local item_max_charge = technic.power_tools[toolname]
local tool_charge = src_meta.charge
if tool_charge <= 0 then
return batt_charge, true
elseif batt_charge >= max_charge then
@ -474,10 +495,8 @@ function technic.discharge_tools(meta, batt_charge, charge_step, max_charge)
charge_step = math.min(charge_step, tool_charge)
tool_charge = tool_charge - charge_step
batt_charge = batt_charge + charge_step
technic.set_RE_wear(srcstack, tool_charge, item_max_charge)
src_meta.charge = tool_charge
srcstack:set_metadata(minetest.serialize(src_meta))
inv:set_stack("dst", 1, srcstack)
technic_set_charge(src_stack, tool_charge)
inv:set_stack("dst", 1, src_stack)
return batt_charge, (tool_charge == 0)
end