fce73ab2bf
* added a way to have a damage modifier relying on type instead of flag * added Slow Falling * added Levitation * added Health Boost * added Absorption
593 lines
19 KiB
Lua
593 lines
19 KiB
Lua
local modname = minetest.get_current_modname()
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local modpath = minetest.get_modpath(modname)
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local S = minetest.get_translator(modname)
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local N = function(s) return s end
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local math = math
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local table = table
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hb = {
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hudtables = {},
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-- number of registered HUD bars
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hudbars_count = 0,
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-- table which records which HUD bar slots have been “registered” so far; used for automatic positioning
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registered_slots = {},
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settings = {},
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-- Table which contains all players with active default HUD bars (only for internal use)
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players = {},
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}
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function hb.load_setting(sname, stype, defaultval, valid_values)
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local sval
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if stype == "string" then
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sval = minetest.settings:get(sname)
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elseif stype == "bool" then
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sval = minetest.settings:get_bool(sname)
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elseif stype == "number" then
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sval = tonumber(minetest.settings:get(sname))
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end
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if sval then
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if valid_values then
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local valid = false
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for i = 1, #valid_values do
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if sval == valid_values[i] then
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valid = true
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end
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end
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if not valid then
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minetest.log("error", "[hudbars] Invalid value for "..sname.."! Using default value ("..tostring(defaultval)..").")
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return defaultval
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else
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return sval
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end
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else
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return sval
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end
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else
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return defaultval
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end
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end
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-- Load default settings
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dofile(modpath.."/default_settings.lua")
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if minetest.get_modpath("mcl_experience") and not minetest.is_creative_enabled("") then
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-- reserve some space for experience bar:
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hb.settings.start_offset_left.y = hb.settings.start_offset_left.y - 20
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hb.settings.start_offset_right.y = hb.settings.start_offset_right.y - 20
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end
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local function player_exists(player)
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return player ~= nil and player:is_player()
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end
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local function make_label(format_string, format_string_config, label, start_value, max_value)
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local params = {}
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local order = format_string_config.order
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for o=1, #order do
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if order[o] == "label" then
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table.insert(params, label)
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elseif order[o] == "value" then
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if format_string_config.format_value then
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table.insert(params, string.format(format_string_config.format_value, start_value))
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else
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table.insert(params, start_value)
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end
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elseif order[o] == "max_value" then
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if format_string_config.format_max_value then
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table.insert(params, string.format(format_string_config.format_max_value, max_value))
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else
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table.insert(params, max_value)
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end
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end
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end
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local ret
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if format_string_config.textdomain then
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ret = minetest.translate(format_string_config.textdomain, format_string, unpack(params))
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else
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ret = S(format_string, unpack(params))
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end
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return ret
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end
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function hb.value_to_barlength(value, max)
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if max == 0 then
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return 0
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else
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if hb.settings.bar_type == "progress_bar" then
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local x
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if value < 0 then x=-0.5 else x = 0.5 end
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local ret = math.modf((value/max) * hb.settings.max_bar_length + x)
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return ret
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else
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local x
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if value < 0 then x=-0.5 else x = 0.5 end
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local ret = math.modf((value/max) * hb.settings.statbar_length + x)
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return ret
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end
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end
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end
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function hb.get_hudtable(identifier)
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return hb.hudtables[identifier]
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end
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function hb.get_hudbar_position_index(identifier)
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if hb.settings.sorting[identifier] then
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return hb.settings.sorting[identifier]
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else
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local i = 0
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while true do
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if hb.registered_slots[i] ~= true and hb.settings.sorting_reverse[i] == nil then
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return i
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end
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i = i + 1
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end
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end
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end
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function hb.register_hudbar(identifier, text_color, label, textures, direction, default_start_value, default_start_max, default_start_hidden, format_string, format_string_config)
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minetest.log("action", "hb.register_hudbar: "..tostring(identifier))
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local hudtable = {}
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local pos, offset
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local index = math.floor(hb.get_hudbar_position_index(identifier))
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hb.registered_slots[index] = true
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if hb.settings.alignment_pattern == "stack_up" then
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pos = hb.settings.pos_left
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offset = {
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x = direction == 0 and hb.settings.start_offset_left.x or -hb.settings.start_offset_right.x,
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y = hb.settings.start_offset_left.y - hb.settings.vmargin * index
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}
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elseif hb.settings.alignment_pattern == "stack_down" then
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pos = hb.settings.pos_left
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offset = {
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x = direction == 0 and hb.settings.start_offset_right.x or -hb.settings.start_offset_left.x,
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y = hb.settings.start_offset_left.y + hb.settings.vmargin * index
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}
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else -- zigzag
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if index % 2 == 0 then
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pos = hb.settings.pos_left
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offset = {
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-- -(24+18) = -42. using linear eq, -42 = -258m - 24.
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x = direction == 0 and hb.settings.start_offset_left.x or (-42+24)/(-258.0) * hb.settings.start_offset_left.x - 24,
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y = hb.settings.start_offset_left.y - hb.settings.vmargin * (index/2)
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}
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else
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pos = hb.settings.pos_right
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offset = {
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-- 24*10+30 - 24 = 234. using linear eq, 234 = 16m - 24.
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x = direction == 0 and hb.settings.start_offset_right.x or (234+24)/(16) * hb.settings.start_offset_right.x - 24,
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y = hb.settings.start_offset_right.y - hb.settings.vmargin * ((index-1)/2)
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}
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end
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end
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if format_string == nil then
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format_string = N("@1: @2/@3")
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end
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if format_string_config == nil then
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format_string_config = {}
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end
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if format_string_config.order == nil then
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format_string_config.order = { "label", "value", "max_value" }
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end
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if format_string_config.format_value == nil then
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format_string_config.format_value = "%d"
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end
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if format_string_config.format_max_value == nil then
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format_string_config.format_max_value = "%d"
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end
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function hudtable.add_all(player, hudtable, start_value, start_max, start_hidden)
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if start_value == nil then start_value = hudtable.default_start_value end
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if start_max == nil then start_max = hudtable.default_start_max end
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if start_hidden == nil then start_hidden = hudtable.default_start_hidden end
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local ids = {}
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local state = {}
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local name = player:get_player_name()
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local bgscale, iconscale, text, barnumber, bgiconnumber
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if start_max == 0 or start_hidden then
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bgscale = { x=0, y=0 }
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else
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bgscale = { x=1, y=1 }
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end
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if start_hidden then
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iconscale = { x=0, y=0 }
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barnumber = 0
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bgiconnumber = 0
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text = ""
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else
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iconscale = { x=1, y=1 }
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barnumber = hb.value_to_barlength(start_value, start_max)
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bgiconnumber = hb.settings.statbar_length
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text = make_label(format_string, format_string_config, label, start_value, start_max)
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end
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if hb.settings.bar_type == "progress_bar" then
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ids.bg = player:hud_add({
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hud_elem_type = "image",
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position = pos,
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scale = bgscale,
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text = "hudbars_bar_background.png",
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alignment = {x=1,y=1},
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offset = { x = offset.x - 1, y = offset.y - 1 },
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z_index = 0,
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})
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if textures.icon then
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ids.icon = player:hud_add({
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hud_elem_type = "image",
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position = pos,
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scale = iconscale,
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text = textures.icon,
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alignment = {x=-1,y=1},
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offset = { x = offset.x - 3, y = offset.y },
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z_index = 1,
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})
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end
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end
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local bar_image, bgicon, bar_size
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if hb.settings.bar_type == "progress_bar" then
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bar_image = textures.bar
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-- NOTE: Intentionally set to nil. For some reason, on some systems,
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-- the progress bar is displaced when the bar_size is set explicitly here.
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-- On the other hand, setting this to nil is deprecated in MT 5.0.0 due to
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-- a debug log warning, but nothing is explained in lua_api.txt.
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-- This section is a potential bug magnet, please watch with care!
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-- The size of the bar image is expected to be exactly 2×16 pixels.
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bar_size = nil
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elseif hb.settings.bar_type == "statbar_classic" or hb.settings.bar_type == "statbar_modern" then
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bar_image = textures.icon
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bgicon = textures.bgicon
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bar_size = {x=24, y=24}
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end
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local text2
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if hb.settings.bar_type == "statbar_modern" then
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text2 = bgicon
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end
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ids.bar = player:hud_add({
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hud_elem_type = "statbar",
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position = pos,
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text = bar_image,
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text2 = text2,
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number = barnumber,
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item = bgiconnumber,
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alignment = {x=-1,y=-1},
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offset = offset,
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direction = direction,
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size = bar_size,
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z_index = 1,
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})
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if hb.settings.bar_type == "progress_bar" then
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ids.text = player:hud_add({
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hud_elem_type = "text",
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position = pos,
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text = text,
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alignment = {x=1,y=1},
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number = text_color,
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direction = direction,
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offset = { x = offset.x + 2, y = offset.y - 1},
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z_index = 2,
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})
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end
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-- Do not forget to update hb.get_hudbar_state if you add new fields to the state table
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state.hidden = start_hidden
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state.value = start_value
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state.max = start_max
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state.text = text
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state.barlength = hb.value_to_barlength(start_value, start_max)
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local main_error_text =
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"[hudbars] Bad initial values of HUD bar identifier “"..tostring(identifier).."” for player "..name..". "
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if start_max < start_value then
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minetest.log("error", main_error_text.."start_max ("..start_max..") is smaller than start_value ("..start_value..")!")
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end
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if start_max < 0 then
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minetest.log("error", main_error_text.."start_max ("..start_max..") is smaller than 0!")
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end
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if start_value < 0 then
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minetest.log("error", main_error_text.."start_value ("..start_value..") is smaller than 0!")
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end
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hb.hudtables[identifier].hudids[name] = ids
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hb.hudtables[identifier].hudstate[name] = state
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end
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hudtable.identifier = identifier
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hudtable.format_string = format_string
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hudtable.format_string_config = format_string_config
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hudtable.label = label
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hudtable.hudids = {}
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hudtable.hudstate = {}
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hudtable.default_start_hidden = default_start_hidden
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hudtable.default_start_value = default_start_value
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hudtable.default_start_max = default_start_max
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hb.hudbars_count= hb.hudbars_count + 1
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hb.hudtables[identifier] = hudtable
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end
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function hb.init_hudbar(player, identifier, start_value, start_max, start_hidden)
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if not player_exists(player) then return false end
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local hudtable = hb.get_hudtable(identifier)
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hb.hudtables[identifier].add_all(player, hudtable, start_value, start_max, start_hidden)
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return true
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end
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function hb.change_hudbar(player, identifier, new_value, new_max_value, new_icon, new_bgicon, new_bar, new_label, new_text_color)
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if new_value == nil and new_max_value == nil and new_icon == nil and new_bgicon == nil and new_bar == nil and new_label == nil and new_text_color == nil then
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return true
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end
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if not player_exists(player) then
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return false
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end
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local name = player:get_player_name()
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local hudtable = hb.get_hudtable(identifier)
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if not hudtable.hudstate[name] then
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return false
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end
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local value_changed, max_changed = false, false
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if new_value then
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if new_value ~= hudtable.hudstate[name].value then
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hudtable.hudstate[name].value = new_value
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value_changed = true
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end
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else
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new_value = hudtable.hudstate[name].value
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end
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if new_max_value then
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if new_max_value ~= hudtable.hudstate[name].max then
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hudtable.hudstate[name].max = new_max_value
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max_changed = true
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end
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else
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new_max_value = hudtable.hudstate[name].max
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end
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if hb.settings.bar_type == "progress_bar" then
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if new_icon and hudtable.hudids[name].icon then
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player:hud_change(hudtable.hudids[name].icon, "text", new_icon)
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end
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if new_bgicon and hudtable.hudids[name].bgicon then
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player:hud_change(hudtable.hudids[name].bgicon, "text", new_bgicon)
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end
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if new_bar then
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player:hud_change(hudtable.hudids[name].bar , "text", new_bar)
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end
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if new_label then
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hudtable.label = new_label
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local new_text = make_label(hudtable.format_string, hudtable.format_string_config, new_label, hudtable.hudstate[name].value, hudtable.hudstate[name].max)
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player:hud_change(hudtable.hudids[name].text, "text", new_text)
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end
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if new_text_color then
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player:hud_change(hudtable.hudids[name].text, "number", new_text_color)
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end
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else
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if new_icon and hudtable.hudids[name].bar then
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player:hud_change(hudtable.hudids[name].bar, "text", new_icon)
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end
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if new_bgicon and hudtable.hudids[name].bg then
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player:hud_change(hudtable.hudids[name].bg, "text", new_bgicon)
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end
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end
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local main_error_text =
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"[hudbars] Bad call to hb.change_hudbar, identifier: “"..tostring(identifier).."”, player name: “"..name.."”. "
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if new_max_value < new_value then
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minetest.log("error", main_error_text.."new_max_value ("..new_max_value..") is smaller than new_value ("..new_value..")!")
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end
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if new_max_value < 0 then
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minetest.log("error", main_error_text.."new_max_value ("..new_max_value..") is smaller than 0!")
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end
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if new_value < 0 then
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minetest.log("error", main_error_text.."new_value ("..new_value..") is smaller than 0!")
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end
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if hudtable.hudstate[name].hidden == false then
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if max_changed and hb.settings.bar_type == "progress_bar" then
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if hudtable.hudstate[name].max == 0 then
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player:hud_change(hudtable.hudids[name].bg, "scale", {x=0,y=0})
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else
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player:hud_change(hudtable.hudids[name].bg, "scale", {x=1,y=1})
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end
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end
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if value_changed or max_changed then
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local new_barlength = hb.value_to_barlength(new_value, new_max_value)
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if new_barlength ~= hudtable.hudstate[name].barlength then
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player:hud_change(hudtable.hudids[name].bar, "number", hb.value_to_barlength(new_value, new_max_value))
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hudtable.hudstate[name].barlength = new_barlength
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end
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if hb.settings.bar_type == "progress_bar" then
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local new_text = make_label(hudtable.format_string, hudtable.format_string_config, hudtable.label, new_value, new_max_value)
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if new_text ~= hudtable.hudstate[name].text then
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player:hud_change(hudtable.hudids[name].text, "text", new_text)
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hudtable.hudstate[name].text = new_text
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end
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end
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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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function hb.hide_hudbar(player, identifier)
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if not player_exists(player) then return false end
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local name = player:get_player_name()
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local hudtable = hb.get_hudtable(identifier)
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if hudtable == nil then return false end
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if hudtable.hudstate[name].hidden == true then return true end
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if hb.settings.bar_type == "progress_bar" then
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if hudtable.hudids[name].icon then
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player:hud_change(hudtable.hudids[name].icon, "scale", {x=0,y=0})
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end
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player:hud_change(hudtable.hudids[name].bg, "scale", {x=0,y=0})
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player:hud_change(hudtable.hudids[name].text, "text", "")
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end
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player:hud_change(hudtable.hudids[name].bar, "number", 0)
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player:hud_change(hudtable.hudids[name].bar, "item", 0)
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hudtable.hudstate[name].hidden = true
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return true
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end
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function hb.unhide_hudbar(player, identifier)
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if not player_exists(player) then return false end
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local name = player:get_player_name()
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local hudtable = hb.get_hudtable(identifier)
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if hudtable == nil then return false end
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if hudtable.hudstate[name].hidden == false then return true end
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local value = hudtable.hudstate[name].value
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local max = hudtable.hudstate[name].max
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if hb.settings.bar_type == "progress_bar" then
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if hudtable.hudids[name].icon then
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player:hud_change(hudtable.hudids[name].icon, "scale", {x=1,y=1})
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end
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||
if hudtable.hudstate[name].max ~= 0 then
|
||
player:hud_change(hudtable.hudids[name].bg, "scale", {x=1,y=1})
|
||
end
|
||
player:hud_change(hudtable.hudids[name].text, "text", make_label(hudtable.format_string, hudtable.format_string_config, hudtable.label, value, max))
|
||
elseif hb.settings.bar_type == "statbar_modern" then
|
||
player:hud_change(hudtable.hudids[name].bar, "scale", {x=1,y=1})
|
||
end
|
||
player:hud_change(hudtable.hudids[name].bar, "number", hb.value_to_barlength(value, max))
|
||
player:hud_change(hudtable.hudids[name].bar, "item", hb.value_to_barlength(max, max))
|
||
hudtable.hudstate[name].hidden = false
|
||
return true
|
||
end
|
||
|
||
function hb.get_hudbar_state(player, identifier)
|
||
if not player_exists(player) then return nil end
|
||
local ref = hb.get_hudtable(identifier).hudstate[player:get_player_name()]
|
||
-- Do not forget to update this chunk of code in case the state changes
|
||
local copy = {
|
||
hidden = ref.hidden,
|
||
value = ref.value,
|
||
max = ref.max,
|
||
text = ref.text,
|
||
barlength = ref.barlength,
|
||
}
|
||
return copy
|
||
end
|
||
|
||
function hb.get_hudbar_identifiers()
|
||
local ids = {}
|
||
for id, _ in pairs(hb.hudtables) do
|
||
table.insert(ids, id)
|
||
end
|
||
return ids
|
||
end
|
||
|
||
--register built-in HUD bars
|
||
if minetest.settings:get_bool("enable_damage") or hb.settings.forceload_default_hudbars then
|
||
hb.register_hudbar("health", 0xFFFFFF, S("Health"), { bar = "hudbars_bar_health.png", icon = "hudbars_icon_health.png", bgicon = "hudbars_bgicon_health.png" }, 0, 20, 20, false)
|
||
hb.register_hudbar("breath", 0xFFFFFF, S("Breath"), { bar = "hudbars_bar_breath.png", icon = "hudbars_icon_breath.png", bgicon = "hudbars_bgicon_breath.png" }, 1, 10, 10, true)
|
||
end
|
||
|
||
local function hide_builtin(player)
|
||
local flags = player:hud_get_flags()
|
||
flags.healthbar = false
|
||
flags.breathbar = false
|
||
player:hud_set_flags(flags)
|
||
end
|
||
|
||
|
||
local function custom_hud(player)
|
||
if minetest.settings:get_bool("enable_damage") or hb.settings.forceload_default_hudbars then
|
||
local hide
|
||
if minetest.settings:get_bool("enable_damage") then
|
||
hide = false
|
||
else
|
||
hide = true
|
||
end
|
||
local hp = player:get_hp()
|
||
local hp_max = player:get_properties().hp_max
|
||
hb.init_hudbar(player, "health", math.min(hp, hp_max), hp_max, hide)
|
||
local breath = player:get_breath()
|
||
local breath_max = player:get_properties().breath_max
|
||
local hide_breath
|
||
if breath >= breath_max and hb.settings.autohide_breath == true then hide_breath = true else hide_breath = false end
|
||
hb.init_hudbar(player, "breath", math.min(breath, breath_max), breath_max, hide_breath or hide)
|
||
end
|
||
end
|
||
|
||
local function update_health(player)
|
||
local hp_max = player:get_properties().hp_max
|
||
local hp = player:get_hp()
|
||
if hp > hp_max then hp = hp_max end
|
||
hb.change_hudbar(player, "health", hp, hp_max)
|
||
end
|
||
|
||
-- update built-in HUD bars
|
||
local function update_hud(player, has_damage)
|
||
if not player_exists(player) then return end
|
||
if has_damage then
|
||
if hb.settings.forceload_default_hudbars then
|
||
hb.unhide_hudbar(player, "health")
|
||
end
|
||
--air
|
||
local breath_max = player:get_properties().breath_max
|
||
local breath = player:get_breath()
|
||
|
||
if breath >= breath_max and hb.settings.autohide_breath == true then
|
||
hb.hide_hudbar(player, "breath")
|
||
else
|
||
hb.unhide_hudbar(player, "breath")
|
||
hb.change_hudbar(player, "breath", math.min(breath, breath_max), breath_max)
|
||
end
|
||
--health
|
||
update_health(player)
|
||
elseif hb.settings.forceload_default_hudbars then
|
||
hb.hide_hudbar(player, "health")
|
||
hb.hide_hudbar(player, "breath")
|
||
end
|
||
end
|
||
|
||
minetest.register_on_player_hpchange(function(player)
|
||
if hb.players[player:get_player_name()] then
|
||
update_health(player)
|
||
end
|
||
end)
|
||
|
||
minetest.register_on_respawnplayer(function(player)
|
||
update_health(player)
|
||
hb.hide_hudbar(player, "breath")
|
||
end)
|
||
|
||
minetest.register_on_joinplayer(function(player)
|
||
hide_builtin(player)
|
||
custom_hud(player)
|
||
hb.players[player:get_player_name()] = player
|
||
end)
|
||
|
||
minetest.register_on_leaveplayer(function(player)
|
||
hb.players[player:get_player_name()] = nil
|
||
end)
|
||
|
||
local main_timer = 0
|
||
local timer = 0
|
||
minetest.register_globalstep(function(dtime)
|
||
main_timer = main_timer + dtime
|
||
timer = timer + dtime
|
||
if main_timer > hb.settings.tick or timer > 4 then
|
||
if main_timer > hb.settings.tick then main_timer = 0 end
|
||
-- only proceed if damage is enabled
|
||
local has_dmg = minetest.settings:get_bool("enable_damage")
|
||
if has_dmg or hb.settings.forceload_default_hudbars then
|
||
for _, player in pairs(hb.players) do
|
||
-- update all hud elements
|
||
update_hud(player, has_dmg)
|
||
end
|
||
end
|
||
end
|
||
if timer > 4 then timer = 0 end
|
||
end)
|