d9f8042640
Keeps track of the time until the next expiry, to avoid running the global step everytick
116 lines
2.5 KiB
Lua
116 lines
2.5 KiB
Lua
hud_score = {}
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local hud = hudkit()
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local players = {}
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local duration = 5
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local max = 6
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local next_check = 10000000
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local function update(name)
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local player = minetest.get_player_by_name(name)
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if not player then
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return
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end
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-- Handle all elements marked for deletion
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-- and rebuild table
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local temp = {}
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for _, def in ipairs(players[name]) do
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if def.delete then
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if hud:exists(player, def.name) then
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hud:remove(player, def.name)
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end
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else
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table.insert(temp, def)
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end
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end
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for i, def in ipairs(temp) do
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-- If not the top-most element, prefix with "+ "
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local text = def.value
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if i > 1 then
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text = "+ " .. text
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end
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if hud:exists(player, def.name) then
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hud:change(player, def.name, "text", text)
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hud:change(player, def.name, "offset", {x = 0, y = i * 20})
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else
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hud:add(player, def.name, {
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hud_elem_type = "text",
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alignment = {x = 0, y = 0},
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position = {x = 0.5, y = 0.6},
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offset = {x = 0, y = i * 20},
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number = def.color,
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text = text
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})
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end
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end
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players[name] = temp
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end
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function hud_score.new(name, def)
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local player = minetest.get_player_by_name(name)
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if not player then
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return
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end
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-- Verify HUD score element def
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if not name or not def or type(def) ~= "table" or
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not def.name or not def.value or not def.color then
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error("hud_score: Invalid HUD score element definition", 2)
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end
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-- Store element expiration time in def.time
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-- and append score element def to players[name]
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def.time = os.time() + duration
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if next_check > duration then
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next_check = duration
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end
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table.insert(players[name], def)
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-- If more than `max` active elements, mark oldest element for deletion
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if #players[name] > max then
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players[name][1].delete = true
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end
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update(name)
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end
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minetest.register_globalstep(function(dtime)
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next_check = next_check - dtime
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if next_check > 0 then
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return
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end
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next_check = 10000000
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-- Loop through HUD score elements of all players
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-- and remove them if they've expired
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for name, hudset in pairs(players) do
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local modified = false
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for i, def in pairs(hudset) do
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local rem = def.time - os.time()
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if rem <= 0 then
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def.delete = true
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modified = true
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elseif rem < next_check then
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next_check = rem
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end
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end
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-- If a player's hudset was modified, update player's HUD
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if modified then
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update(name)
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end
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end
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end)
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minetest.register_on_joinplayer(function(player)
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players[player:get_player_name()] = {}
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end)
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minetest.register_on_leaveplayer(function(player)
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players[player:get_player_name()] = nil
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end)
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