forked from mtcontrib/minetest_hudbars
339 lines
10 KiB
Lua
339 lines
10 KiB
Lua
hb = {}
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hb.hudtables = {}
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-- number of registered HUD bars
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hb.hudbars_count = 0
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hb.settings = {}
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-- default settings
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hb.settings.max_bar_length = 160
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-- statbar positions
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hb.settings.pos_left = { x=0.5, y=1 }
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hb.settings.pos_right= { x = 0.5, y = 1 }
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hb.settings.start_offset_left = { x = -175, y = -70 }
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hb.settings.start_offset_right = { x = 15, y = -70 }
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hb.settings.vmargin = 24
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hb.settings.tick = 0.1
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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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return math.ceil((value/max) * hb.settings.max_bar_length)
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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.register_hudbar(identifier, text_color, label, textures, default_start_value, default_start_max, default_start_hidden, format_string)
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local hudtable = {}
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local pos, offset
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if hb.hudbars_count % 2 == 0 then
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pos = hb.settings.pos_left
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offset = {
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x = hb.settings.start_offset_left.x,
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y = hb.settings.start_offset_left.y - hb.settings.vmargin * math.floor(hb.hudbars_count/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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x = hb.settings.start_offset_right.x,
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y = hb.settings.start_offset_right.y - hb.settings.vmargin * math.floor((hb.hudbars_count-1)/2)
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}
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end
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if format_string == nil then
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format_string = "%s: %d/%d"
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end
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hudtable.add_all = function(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
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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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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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text = string.format(format_string, label, start_value, start_max)
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end
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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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})
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if textures.icon ~= nil 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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})
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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 = textures.bar,
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number = barnumber,
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alignment = {x=-1,y=-1},
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offset = offset,
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})
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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 = 0,
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offset = { x = offset.x + 2, y = offset.y },
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})
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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.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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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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end
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function hb.change_hudbar(player, identifier, new_value, new_max_value)
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if new_value == nil and new_max_value == nil then
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return
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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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local value_changed, max_changed = false, false
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if new_value ~= nil 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 ~= nil 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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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 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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local new_text = string.format(hudtable.format_string, 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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function hb.hide_hudbar(player, identifier)
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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.hudstate[name].hidden == false) then
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if hudtable.hudids[name].icon ~= nil 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].bar, "number", 0)
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player:hud_change(hudtable.hudids[name].text, "text", "")
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hudtable.hudstate[name].hidden = true
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end
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end
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function hb.unhide_hudbar(player, identifier)
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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.hudstate[name].hidden) then
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local name = player:get_player_name()
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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 hudtable.hudids[name].icon ~= nil 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
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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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player:hud_change(hudtable.hudids[name].bar, "number", hb.value_to_barlength(value, max))
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player:hud_change(hudtable.hudids[name].text, "text", tostring(string.format(hudtable.format_string, hudtable.label, value, max)))
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hudtable.hudstate[name].hidden = false
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end
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end
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function hb.get_hudbar_state(player, identifier)
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local ref = hb.get_hudtable(identifier).hudstate[player:get_player_name()]
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-- Do not forget to update this chunk of code in case the state changes
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local copy = {
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hidden = ref.hidden,
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value = ref.value,
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max = ref.max,
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text = ref.text,
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barlength = ref.barlength,
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}
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return copy
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end
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--register built-in HUD bars
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if minetest.setting_getbool("enable_damage") then
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hb.register_hudbar("health", 0xFFFFFF, "Health", { bar = "hudbars_bar_health.png", icon = "hudbars_icon_health.png" }, 20, 20, false)
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hb.register_hudbar("breath", 0xFFFFFF, "Breath", { bar = "hudbars_bar_breath.png", icon = "hudbars_icon_breath.png" }, 10, 10, true)
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end
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--load custom settings
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local set = io.open(minetest.get_modpath("hudbars").."/hudbars.conf", "r")
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if set then
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dofile(minetest.get_modpath("hudbars").."/hudbars.conf")
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set:close()
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end
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local function hide_builtin(player)
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player:hud_set_flags({healthbar = false, breathbar = false})
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end
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local function custom_hud(player)
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if minetest.setting_getbool("enable_damage") then
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hb.init_hudbar(player, "health", player:get_hp())
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local breath = player:get_breath()
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local hide_breath
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if breath == 11 then hide_breath = true else hide_breath = false end
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hb.init_hudbar(player, "breath", math.min(breath, 10), nil, hide_breath)
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end
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end
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-- update built-in HUD bars
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local function update_hud(player)
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if minetest.setting_getbool("enable_damage") then
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--air
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local breath = player:get_breath()
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if breath == 11 then
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hb.hide_hudbar(player, "breath")
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else
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hb.unhide_hudbar(player, "breath")
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hb.change_hudbar(player, "breath", math.min(breath, 10))
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end
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--health
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hb.change_hudbar(player, "health", player:get_hp())
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end
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end
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minetest.register_on_joinplayer(function(player)
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minetest.after(0.5, function()
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hide_builtin(player)
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custom_hud(player)
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end)
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end)
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local main_timer = 0
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local timer = 0
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local timer2 = 0
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minetest.after(2.5, function()
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minetest.register_globalstep(function(dtime)
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main_timer = main_timer + dtime
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timer = timer + dtime
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timer2 = timer2 + dtime
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if main_timer > hb.settings.tick or timer > 4 then
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if main_timer > hb.settings.tick then main_timer = 0 end
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for _,player in ipairs(minetest.get_connected_players()) do
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-- only proceed if damage is enabled
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if minetest.setting_getbool("enable_damage") then
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-- update all hud elements
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update_hud(player)
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end
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end
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end
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if timer > 4 then timer = 0 end
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end)
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end)
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