quests/hud.lua

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2015-03-03 22:04:01 +01:00
-- Boilerplate to support localized strings if intllib mod is installed.
local S
if minetest.get_modpath("intllib") then
S = intllib.Getter()
else
-- If you don't use insertions (@1, @2, etc) you can use this:
S = function(s) return s end
end
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local show_max = 10 -- the maximum visible quests.
local hud_config = { position = {x = 1, y = 0.2},
offset = { x = -200, y = 0},
number = 0xAAAA00 }
-- call this function to enable the HUD for the player that shows his quests
-- the HUD can only show up to show_max quests
function quests.show_hud(playername, autohide)
if (quests.hud[playername] == nil) then
quests.hud[playername] = { autohide = autohide}
end
if (quests.hud[playername].list ~= nil) then
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return
end
local hud = {
hud_elem_type = "text",
alignment = {x=1, y=1},
position = {x = hud_config.position.x, y = hud_config.position.y},
offset = {x = hud_config.offset.x, y = hud_config.offset.y},
number = hud_config.number,
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text = S("Quests:") }
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local player = minetest.get_player_by_name(playername)
if (player == nil) then
return false
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end
quests.hud[playername].list = {}
table.insert(quests.hud[playername].list, { value=0, id=player:hud_add(hud) })
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minetest.after(0, quests.update_hud, playername)
end
-- call this method to hide the hud
function quests.hide_hud(playername)
local player = minetest.get_player_by_name(playername)
if (player == nil or quests.hud[playername] == nil or quests.hud[playername].list == nil) then
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return
end
for _,quest in pairs(quests.hud[playername].list) do
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player:hud_remove(quest.id)
if (quest.id_background ~= nil) then
player:hud_remove(quest.id_background)
end
if (quest.id_bar ~= nil) then
player:hud_remove(quest.id_bar)
end
end
quests.hud[playername].list = nil
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end
local function get_quest_hud_string(questname, quest)
local quest_string = quests.registered_quests[questname].title
if (quests.registered_quests[questname].max ~= 1) then
quest_string = quest_string .. "\n ("..quests.round(quest.value, 2).."/"..quests.registered_quests[questname].max..")"
end
return quest_string
end
-- only for internal use
-- updates the hud
function quests.update_hud(playername)
if (quests.hud[playername] == nil or quests.active_quests[playername] == nil) then
return
end
if (quests.hud[playername].list == nil) then
if (quests.hud[playername].autohide and next(quests.active_quests[playername]) ~= nil) then
quests.show_hud(playername)
end
return
end
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local player = minetest.get_player_by_name(playername)
if (player == nil) then
return
end
-- Check for changes in the hud
local i = 2 -- the first element is the title
local change = false
local visible = {}
local remove = {}
for j,hud_element in ipairs(quests.hud[playername].list) do
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if (hud_element.name ~= nil) then
if (quests.active_quests[playername][hud_element.name] ~= nil) then
if (hud_element.value ~= quests.active_quests[playername][hud_element.name].value) then
hud_element.value = quests.active_quests[playername][hud_element.name].value
player:hud_change(hud_element.id, "text", get_quest_hud_string(hud_element.name, quests.active_quests[playername][hud_element.name]))
if (hud_element.id_bar ~= nil) then
player:hud_change(hud_element.id_bar, "number", math.floor(40 * hud_element.value / quests.registered_quests[hud_element.name].max))
end
end
if (i ~= j) then
player:hud_change(hud_element.id, "offset", { x= hud_config.offset.x, y=hud_config.offset.y + (i-1) *40})
if (hud_element.id_background ~= nil) then
player:hud_change(hud_element.id_background, "offset", { x= hud_config.offset.x, y=hud_config.offset.y + (i-1) *40 + 22})
end
if (hud_element.id_bar ~= nil) then
player:hud_change(hud_element.id_bar, "offset", { x= hud_config.offset.x, y=hud_config.offset.y + (i-1) *40 + 24})
end
end
visible[hud_element.name] = true
i = i + 1
else
player:hud_remove(hud_element.id)
if (hud_element.id_background ~= nil) then
player:hud_remove(hud_element.id_background)
end
if (hud_element.id_bar ~= nil) then
player:hud_remove(hud_element.id_bar)
end
table.insert(remove, j)
end
end
end
--remove ended quests
if (remove[1] ~= nil) then
for _,j in ipairs(remove) do
table.remove(quests.hud[playername].list, j)
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i = i - 1
end
end
if (i >= show_max + 1) then
return
end
-- add new quests
local counter = i - 1
for questname,questspecs in pairs(quests.active_quests[playername]) do
if (not visible[questname]) then
local id = player:hud_add({ hud_elem_type = "text",
alignment = { x=1, y= 1 },
position = {x = hud_config.position.x, y = hud_config.position.y},
offset = {x = hud_config.offset.x, y = hud_config.offset.y + counter * 40},
number = hud_config.number,
text = get_quest_hud_string(questname, questspecs) })
local id_background
local id_bar
if (quests.registered_quests[questname].max ~= 1) then
id_background = player:hud_add({ hud_elem_type = "image",
scale = { x = 1, y = 1 },
alignment = { x = 1, y = 1 },
position = { x = hud_config.position.x, y = hud_config.position.y },
offset = { x = hud_config.offset.x, y = hud_config.offset.y + counter * 40 + 22 },
text = "quests_questbar_background.png" })
id_bar = player:hud_add({hud_elem_type = "statbar",
scale = { x = 1, y = 1 },
alignment = { x = 1, y = 1 },
position = { x = hud_config.position.x, y = hud_config.position.y },
offset = { x = hud_config.offset.x + 2, y = hud_config.offset.y + counter * 40 + 24 },
number = math.floor(40 * questspecs.value / quests.registered_quests[questname].max),
text = "quests_questbar.png" })
end
table.insert(quests.hud[playername].list, { name = questname,
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id = id,
id_background = id_background,
id_bar = id_bar,
value = questspecs.value })
counter = counter + 1
if (counter >= show_max + 1) then
break
end
end
end
if (quests.hud[playername].autohide) then
if (next(quests.active_quests[playername]) == nil) then
player:hud_change(quests.hud[playername].list[1].id, "text", S("No more Quests"))
minetest.after(3, function(playername)
if (next(quests.active_quests[playername]) ~= nil) then
player:hud_change(quests.hud[playername].list[1].id, "text", S("Quests:"))
else
quests.hide_hud(playername)
end
end, playername)
end
end
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end
-- show the HUDs
--for playername,id in pairs(quests.hud) do
-- if (id ~= nil) then
-- quests.hud[playername] = nil
-- minetest.after(10, function(playername)
-- quests.show_hud(playername)
-- quests.update_hud(playername)
-- end, playername)
-- end
--end
minetest.register_on_joinplayer(function(player)
local playername = player:get_player_name()
if (quests.hud[playername] ~= nil) then
if (not(quests.hud[playername].first)) then
return
end
local list = quests.hud[playername].list
print(dump(list))
local autohide = quests.hud[playername].autohide
quests.hud[playername] = { autohide = autohide }
if (list ~= nil) then
minetest.after(1, function(playername)
quests.show_hud(playername)
end, playername)
end
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end
end)