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321 lines
10 KiB
Lua
321 lines
10 KiB
Lua
--- Quests HUD.
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-- @module hud
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-- Boilerplate to support localized strings if intllib mod is installed.
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local S
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if minetest.get_modpath("intllib") then
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S = intllib.Getter()
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else
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-- If you don't use insertions (@1, @2, etc) you can use this:
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S = function(s) return s end
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end
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local show_max = 10 -- the maximum visible quests.
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local hud_config = { position = {x = 1, y = 0.2},
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offset = { x = -200, y = 0},
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number = quests.colors.new }
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--- Set the HUD position (not offset).
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-- Supplied positions may be `nil` and will be skipped.
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-- @note Calling this function while quests are already displayed will result
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-- in undefined behaviour. Call it beforehand.
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function quests.set_hud_position(x, y)
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hud_config.position.x = x or hud_config.position.x
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hud_config.position.y = y or hud_config.position.y
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end
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--- Set the HUD offset (not position).
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-- Supplied positions may be `nil` and will be skipped.
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-- @note Calling this function while quests are already displayed will result
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-- in undefined behaviour. Call it beforehand.
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function quests.set_hud_offset(x, y)
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hud_config.offset.x = x or hud_config.offset.x
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hud_config.offset.y = y or hud_config.offset.y
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end
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--- Show quests HUD to player.
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-- The HUD can only show up to `show_max` quests
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-- @param playername Player whose quests HUD must be shown
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-- @param autohide Whether to automatically hide the HUD once it's empty
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function quests.show_hud(playername, autohide)
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if quests.hud[playername] == nil then
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quests.hud[playername] = { autohide = autohide }
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end
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if quests.hud[playername].list ~= nil then
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return
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end
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local player = minetest.get_player_by_name(playername)
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if player == nil then
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return false
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end
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quests.hud[playername].header = player:hud_add({
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hud_elem_type = "text",
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alignment = {x=1, y=1},
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position = {x = hud_config.position.x, y = hud_config.position.y},
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offset = {x = hud_config.offset.x, y = hud_config.offset.y - 20},
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number = hud_config.number,
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text = S("Quests:")
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})
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quests.hud[playername].list = {}
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quests.update_hud(playername)
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end
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--- Hide quests HUD to player.
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-- @param playername Player whose quests HUD must be hidden
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function quests.hide_hud(playername)
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local player = minetest.get_player_by_name(playername)
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if player == nil or quests.hud[playername] == nil or quests.hud[playername].list == nil then
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return
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end
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for _,quest in pairs(quests.hud[playername].list) do
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if quest.text and quest.text.id then
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player:hud_remove(quest.text.id)
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end
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if quest.background and quest.background.id then
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player:hud_remove(quest.background.id)
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end
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if quest.bar and quest.bar.id then
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player:hud_remove(quest.bar.id)
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end
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end
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player:hud_remove(quests.hud[playername].header)
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quests.hud[playername].list = nil
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end
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local function get_quest_hud_string(title, value, max)
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return title .. "\n ("..quests.round(value, 2).."/"..max..")"
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end
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local function get_hud_list(playername)
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local deftable = {}
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local counter = 0
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for questname, plr_quest in quests.sorted_pairs(quests.active_quests[playername]) do
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local quest = quests.registered_quests[questname]
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local hide_from_hud
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if quests.info_quests[playername] and quests.info_quests[playername][questname] then
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hide_from_hud = quests.info_quests[playername][questname].hide_from_hud
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else
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hide_from_hud = false
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end
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if quest and not hide_from_hud then -- Quest might have been deleted
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local function get_table(name, value, max)
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local def = {
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text = {
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hud_elem_type = "text",
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alignment = { x=1, y= 1 },
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position = {x = hud_config.position.x, y = hud_config.position.y},
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offset = {x = hud_config.offset.x, y = hud_config.offset.y + counter * 40},
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number = hud_config.number,
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text = name
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}
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}
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if plr_quest.finished then
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if quests.failed_quests[playername] and quests.failed_quests[playername][questname] then
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def.text.number = quests.colors.failed
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else
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def.text.number = quests.colors.success
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end
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else
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def.text.number = hud_config.number
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end
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if value and max then
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def.bar = {
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hud_elem_type = "image",
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scale = { x = math.floor(20 * value / max), y = 1 },
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alignment = { x = 1, y = 1 },
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position = { x = hud_config.position.x, y = hud_config.position.y },
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offset = { x = hud_config.offset.x + 2, y = hud_config.offset.y + counter * 40 + 24 },
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text = "quests_questbar.png"
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}
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def.background = {
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hud_elem_type = "image",
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scale = { x = 1, y = 1 },
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size = { x = 2, y = 4 },
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alignment = { x = 1, y = 1 },
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position = { x = hud_config.position.x, y = hud_config.position.y },
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offset = { x = hud_config.offset.x, y = hud_config.offset.y + counter * 40 + 22 },
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text = "quests_questbar_background.png"
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}
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end
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return def
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end
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if quest.simple then
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deftable[questname] = get_table(get_quest_hud_string(quest.title, plr_quest.value, quest.max), plr_quest.value, quest.max)
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counter = counter + 1
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else
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deftable[questname] = get_table(quest.title)
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counter = counter + 0.5
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for taskname, task in pairs(quest.tasks) do
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local plr_task = quests.active_quests[playername][questname][taskname]
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if plr_task.visible and not plr_task.disabled and not plr_task.finished then
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deftable[questname .. "#" .. taskname] = get_table("- " .. get_quest_hud_string(task.title, plr_task.value, task.max), plr_task.value, task.max)
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counter = counter + 1
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if counter >= show_max + 1 then
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break
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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 counter >= show_max + 1 then
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break
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end
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end
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end
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return deftable
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end
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local DELETED = {}
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-- only for internal use
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-- updates the hud
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function quests.update_hud(playername)
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if quests.hud[playername] == nil or quests.active_quests[playername] == nil then
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return
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end
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if quests.hud[playername].list == nil then
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if quests.hud[playername].autohide and next(quests.active_quests[playername]) ~= nil then
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quests.show_hud(playername)
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end
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return
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end
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local player = minetest.get_player_by_name(playername)
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if player == nil then
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return
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end
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if quests.hud[playername].autohide then
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if next(quests.active_quests[playername]) == nil then
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player:hud_change(quests.hud[playername].header, "text", S("No more Quests"))
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minetest.after(3, function(playername)
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if next(quests.active_quests[playername]) ~= nil then
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player:hud_change(quests.hud[playername].header, "text", S("Quests:"))
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quests.update_hud(playername)
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else
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quests.hide_hud(playername)
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end
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end, playername)
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end
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end
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-- Check for changes in the hud
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local function table_diff(tab1, tab2)
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local result_tab
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for k, v in pairs(tab2) do
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if not tab1[k] or tab1[k] ~= v then
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if type(tab1[k]) == "table" and type(v) == "table" then
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local diff = table_diff(tab1[k], v)
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if diff ~= nil then
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if not result_tab then
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result_tab = {}
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end
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result_tab[k] = diff
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end
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else
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if not result_tab then
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result_tab = {}
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end
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result_tab[k] = v
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end
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end
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end
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for k, _ in pairs(tab1) do
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if tab2[k] == nil then
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if not result_tab then
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result_tab = {}
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end
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result_tab[k] = DELETED
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end
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end
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return result_tab
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end
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-- Merge `from` into table `into`
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local function table_merge(from, into)
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for k, v in pairs(from) do
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if type(v) == "table" and type(into[k]) == "table" then
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table_merge(v, into[k])
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else
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into[k] = v
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end
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end
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end
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local old_hud = quests.hud[playername].list
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local new_hud = get_hud_list(playername)
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local diff = table_diff(old_hud, new_hud)
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-- Copy the HUD IDs from the old table to the new one, to avoid loosing them
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for questname, hud_elms in pairs(old_hud) do
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for elm_name, elm_def in pairs(hud_elms) do
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if new_hud[questname] and new_hud[questname][elm_name] then
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new_hud[questname][elm_name].id = elm_def.id
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end
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end
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end
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--[[ Disabled because it had issues with MT engine and too much quests. HUD elements sometimes won't update.
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if diff ~= nil then
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for questname, hud_elms in pairs(diff) do
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if hud_elms == DELETED then
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for elm_name, elm_def in pairs(old_hud[questname]) do
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player:hud_remove(elm_def.id)
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end
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else
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for elm_name, elm_def in pairs(hud_elms) do
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if not old_hud[questname] or not old_hud[questname][elm_name] or not old_hud[questname][elm_name].id then
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new_hud[questname][elm_name].id = player:hud_add(elm_def)
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else
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for elm_prop_name, elm_prop in pairs(elm_def) do
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if elm_prop_name ~= "id" then
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if type(elm_prop) == "table" then
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-- For table-based properties, MT expects a full table to be specified,
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-- so we must create a merged table. Just merge the changes with the old
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-- HUD table, since it will disappear.
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table_merge(elm_prop, old_hud[questname][elm_name][elm_prop_name])
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else
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old_hud[questname][elm_name][elm_prop_name] = elm_prop
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end
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player:hud_change(new_hud[questname][elm_name].id, elm_prop_name, old_hud[questname][elm_name][elm_prop_name])
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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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end
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end]]
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for questname, hud_elms in pairs(old_hud) do
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for elm_name, elm_def in pairs(hud_elms) do
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player:hud_remove(elm_def.id)
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end
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end
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for questname, hud_elms in pairs(new_hud) do
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for elm_name, elm_def in pairs(hud_elms) do
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elm_def.id = player:hud_add(elm_def)
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end
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end
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quests.hud[playername].list = new_hud
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end
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minetest.register_on_joinplayer(function(player)
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local playername = player:get_player_name()
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if quests.hud[playername] ~= nil then
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if not quests.hud[playername].first then
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return
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end
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local list = quests.hud[playername].list
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local autohide = quests.hud[playername].autohide
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local central_message_enabled = quests.hud[playername].central_message_enabled
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quests.hud[playername] = {
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autohide = autohide,
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central_message_enabled = central_message_enabled
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}
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else -- new player
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quests.hud[playername] = {
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autohide = true,
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central_message_enabled = true
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}
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quests.active_quests[playername] = {}
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end
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minetest.after(1, function(playername)
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quests.show_hud(playername)
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end, playername)
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end)
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