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https://github.com/minetest/minetest.git
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218 lines
5.6 KiB
Lua
218 lines
5.6 KiB
Lua
-- cache setting
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local enable_damage = core.settings:get_bool("enable_damage")
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local bar_definitions = {
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hp = {
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type = "statbar",
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position = {x = 0.5, y = 1},
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text = "heart.png",
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text2 = "heart_gone.png",
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number = core.PLAYER_MAX_HP_DEFAULT,
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item = core.PLAYER_MAX_HP_DEFAULT,
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direction = 0,
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size = {x = 24, y = 24},
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offset = {x = (-10 * 24) - 25, y = -(48 + 24 + 16)},
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},
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breath = {
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type = "statbar",
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position = {x = 0.5, y = 1},
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text = "bubble.png",
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text2 = "bubble_gone.png",
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number = core.PLAYER_MAX_BREATH_DEFAULT * 2,
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item = core.PLAYER_MAX_BREATH_DEFAULT * 2,
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direction = 0,
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size = {x = 24, y = 24},
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offset = {x = 25, y= -(48 + 24 + 16)},
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},
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minimap = {
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type = "minimap",
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position = {x = 1, y = 0},
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alignment = {x = -1, y = 1},
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offset = {x = -10, y = 10},
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size = {x = 256 , y = 256},
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},
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}
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local hud_ids = {}
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local function scaleToHudMax(player, field)
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-- Scale "hp" or "breath" to the hud maximum dimensions
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local current = player["get_" .. field](player)
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local nominal = bar_definitions[field].item
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local max_display = math.max(player:get_properties()[field .. "_max"], current)
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return math.ceil(current / max_display * nominal)
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end
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local function update_builtin_statbars(player)
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local name = player:get_player_name()
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if name == "" then
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return
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end
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local flags = player:hud_get_flags()
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if not hud_ids[name] then
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hud_ids[name] = {}
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-- flags are not transmitted to client on connect, we need to make sure
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-- our current flags are transmitted by sending them actively
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player:hud_set_flags(flags)
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end
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local hud = hud_ids[name]
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local immortal = player:get_armor_groups().immortal == 1
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if flags.healthbar and enable_damage and not immortal then
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local number = scaleToHudMax(player, "hp")
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if hud.id_healthbar == nil then
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local hud_def = table.copy(bar_definitions.hp)
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hud_def.number = number
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hud.id_healthbar = player:hud_add(hud_def)
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else
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player:hud_change(hud.id_healthbar, "number", number)
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end
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elseif hud.id_healthbar then
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player:hud_remove(hud.id_healthbar)
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hud.id_healthbar = nil
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end
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local show_breathbar = flags.breathbar and enable_damage and not immortal
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local breath = player:get_breath()
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local breath_max = player:get_properties().breath_max
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if show_breathbar and breath <= breath_max then
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local number = scaleToHudMax(player, "breath")
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if not hud.id_breathbar and breath < breath_max then
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local hud_def = table.copy(bar_definitions.breath)
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hud_def.number = number
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hud.id_breathbar = player:hud_add(hud_def)
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elseif hud.id_breathbar then
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player:hud_change(hud.id_breathbar, "number", number)
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end
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end
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if hud.id_breathbar and (not show_breathbar or breath == breath_max) then
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core.after(1, function(player_name, breath_bar)
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local player = core.get_player_by_name(player_name)
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if player then
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player:hud_remove(breath_bar)
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end
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end, name, hud.id_breathbar)
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hud.id_breathbar = nil
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end
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-- Don't add a minimap for clients which already have it hardcoded in C++.
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local show_minimap = flags.minimap and
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minetest.get_player_information(name).protocol_version >= 44
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if show_minimap and not hud.id_minimap then
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hud.id_minimap = player:hud_add(bar_definitions.minimap)
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elseif not show_minimap and hud.id_minimap then
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player:hud_remove(hud.id_minimap)
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hud.id_minimap = nil
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end
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end
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local function cleanup_builtin_statbars(player)
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local name = player:get_player_name()
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if name == "" then
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return
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end
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hud_ids[name] = nil
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end
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local function player_event_handler(player,eventname)
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assert(player:is_player())
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local name = player:get_player_name()
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if name == "" or not hud_ids[name] then
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return
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end
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if eventname == "health_changed" then
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update_builtin_statbars(player)
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if hud_ids[name].id_healthbar then
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return true
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end
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end
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if eventname == "breath_changed" then
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update_builtin_statbars(player)
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if hud_ids[name].id_breathbar then
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return true
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end
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end
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if eventname == "hud_changed" or eventname == "properties_changed" then
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update_builtin_statbars(player)
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return true
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end
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return false
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end
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function core.hud_replace_builtin(hud_name, definition)
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if type(definition) ~= "table" then
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return false
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end
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definition = table.copy(definition)
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if hud_name == "health" then
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definition.item = definition.item or definition.number or core.PLAYER_MAX_HP_DEFAULT
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bar_definitions.hp = definition
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for name, ids in pairs(hud_ids) do
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local player = core.get_player_by_name(name)
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if player and ids.id_healthbar then
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player:hud_remove(ids.id_healthbar)
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ids.id_healthbar = nil
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update_builtin_statbars(player)
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end
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end
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return true
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end
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if hud_name == "breath" then
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definition.item = definition.item or definition.number or core.PLAYER_MAX_BREATH_DEFAULT
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bar_definitions.breath = definition
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for name, ids in pairs(hud_ids) do
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local player = core.get_player_by_name(name)
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if player and ids.id_breathbar then
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player:hud_remove(ids.id_breathbar)
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ids.id_breathbar = nil
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update_builtin_statbars(player)
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end
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end
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return true
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end
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if hud_name == "minimap" then
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bar_definitions.minimap = definition
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for name, ids in pairs(hud_ids) do
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local player = core.get_player_by_name(name)
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if player and ids.id_minimap then
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player:hud_remove(ids.id_minimap)
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ids.id_minimap = nil
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update_builtin_statbars(player)
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end
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end
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return true
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end
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return false
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end
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-- Append "update_builtin_statbars" as late as possible
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-- This ensures that the HUD is hidden when the flags are updated in this callback
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core.register_on_mods_loaded(function()
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core.register_on_joinplayer(update_builtin_statbars)
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end)
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core.register_on_leaveplayer(cleanup_builtin_statbars)
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core.register_playerevent(player_event_handler)
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