mirror of
https://github.com/wesnoth/wesnoth
synced 2025-04-29 16:46:03 +00:00
106 lines
2.7 KiB
Lua
106 lines
2.7 KiB
Lua
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local helper = wesnoth.require "helper"
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local utils = wesnoth.require "wml-utils"
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local T = helper.set_wml_tag_metatable {}
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local wml_actions = wesnoth.wml_actions
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local used_items = {}
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function wml_actions.object(cfg)
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local context = wesnoth.current.event_context
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-- If this item has already been used
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local unique = cfg.take_only_once
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if unique == nil then unique = true end
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local obj_id = utils.check_key(cfg.id, "id", "object", true)
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if obj_id and unique and used_items[obj_id] then return end
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local unit, command_type, text
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local filter = helper.get_child(cfg, "filter")
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if filter then
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unit = wesnoth.get_units(filter)[1]
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else
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unit = wesnoth.get_unit(context.x1, context.y1)
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end
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-- If a unit matches the filter, proceed
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if unit then
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text = tostring(cfg.description or "")
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else
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text = tostring(cfg.cannot_use_message or "")
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command_type = "else"
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end
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-- Default to silent if object has no description
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local silent = cfg.silent
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if silent == nil then silent = (text:len() == 0) end
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if unit then
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command_type = "then"
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if cfg.no_write ~= nil then
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wesnoth.log("wml", "[object]no_write=yes is deprecated in favour of placing [effect] tags in [modify_unit]")
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end
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local dvs = cfg.delayed_variable_substitution
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local add = cfg.no_write ~= true
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if dvs then
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wesnoth.add_modification(unit, "object", helper.literal(cfg), add)
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else
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wesnoth.add_modification(unit, "object", helper.parsed(cfg), add)
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end
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if not silent then
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wesnoth.select_unit(unit, false)
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wesnoth.highlight_hex(unit.x, unit.y)
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end
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-- Mark this item as used up
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if obj_id and unique then used_items[obj_id] = true end
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end
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if not silent then
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wml_actions.redraw{}
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local name = tostring(cfg.name or "")
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wesnoth.show_popup_dialog(name, text, cfg.image)
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end
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for cmd in helper.child_range(cfg, command_type) do
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local action = utils.handle_event_commands(cmd, "conditional")
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if action ~= "none" then break end
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end
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end
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local old_on_load = wesnoth.game_events.on_load
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function wesnoth.game_events.on_load(cfg)
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for i = 1,#cfg do
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if cfg[i][1] == "used_items" then
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-- Not quite sure if this will work
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-- Might need to loop through and copy each ID separately
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used_items = cfg[i][2]
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table.remove(cfg, i)
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break
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end
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end
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old_on_load(cfg)
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end
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local old_on_save = wesnoth.game_events.on_save
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function wesnoth.game_events.on_save()
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local cfg = old_on_save()
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table.insert(cfg, T.used_items(used_items) )
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return cfg
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end
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function wml_actions.remove_object(cfg)
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local obj_id = cfg.object_id
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for _,unit in ipairs(wesnoth.get_units(cfg)) do
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wesnoth.remove_modifications(unit, {id = obj_id})
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end
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end
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function wesnoth.wml_conditionals.found_item(cfg)
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return used_items[utils.check_key(cfg.id, "id", "found_item", true)]
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end
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