minetest_hudbars/init.lua

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hud = {}
-- HUD statbar values
hud.health = {}
hud.air = {}
hud.hudtables = {}
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-- number of registered HUD bars
hud.hudbars_count = 0
-- HUD item ids
local health_hud = {}
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local health_hud_text = {}
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local health_hud_icon = {}
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local health_hud_bg = {}
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local air_hud = {}
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local air_hud_text = {}
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local air_hud_icon = {}
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local air_hud_bg = {}
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-- default settings
HUD_SCALEABLE = false
HUD_BARLENGTH = 160
-- statbar positions
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HUD_HEALTH_POS = {x=0.5,y=0.9}
HUD_HEALTH_OFFSET = {x=-175, y=2}
HUD_AIR_POS = {x=0.5,y=0.9}
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HUD_AIR_OFFSET = {x=15,y=2}
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-- dirty way to check for new statbars
if dump(minetest.hud_replace_builtin) ~= "nil" then
HUD_SCALEABLE = true
HUD_HEALTH_POS = {x=0.5,y=1}
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HUD_HEALTH_OFFSET = {x=-175, y=-70}
HUD_AIR_POS = {x=0.5,y=1}
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HUD_AIR_OFFSET = {x=15,y=-70}
end
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HUD_CUSTOM_POS_LEFT = HUD_HEALTH_POS
HUD_CUSTOM_POS_RIGHT = HUD_AIR_POS
HUD_CUSTOM_VMARGIN = 24
HUD_CUSTOM_START_OFFSET_LEFT = {x=HUD_HEALTH_OFFSET.x, y=HUD_HEALTH_OFFSET.y - HUD_CUSTOM_VMARGIN}
HUD_CUSTOM_START_OFFSET_RIGHT = {x=HUD_AIR_OFFSET.x, y=HUD_AIR_OFFSET.y - HUD_CUSTOM_VMARGIN}
HUD_TICK = 0.1
function hud.value_to_barlength(value, max)
return math.ceil((value/max) * HUD_BARLENGTH)
end
function hud.register_hudbar(identifier, text_color, label, use_icon, default_start_value, default_start_max, start_hide, format_string)
local hudtable = {}
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local pos, offset
if hud.hudbars_count % 2 == 0 then
pos = HUD_CUSTOM_POS_LEFT
offset = {
x = HUD_CUSTOM_START_OFFSET_LEFT.x,
y = HUD_CUSTOM_START_OFFSET_LEFT.y - HUD_CUSTOM_VMARGIN * math.floor(hud.hudbars_count/2)
}
else
pos = HUD_CUSTOM_POS_RIGHT
offset = {
x = HUD_CUSTOM_START_OFFSET_RIGHT.x,
y = HUD_CUSTOM_START_OFFSET_RIGHT.y - HUD_CUSTOM_VMARGIN * math.floor((hud.hudbars_count-1)/2)
}
end
if format_string == nil then
format_string = "%s: %d/%d"
end
hudtable.add_all = function(player, start_value, start_max)
if start_value == nil then start_value = default_start_value end
if start_max == nil then start_max = default_start_max end
local ids = {}
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local state = {}
ids.bg = player:hud_add({
hud_elem_type = "image",
position = pos,
scale = { x = 1, y = 1 },
text = "hudbars_bar_background.png",
alignment = {x=1,y=1},
offset = { x = offset.x - 1, y = offset.y - 1 },
})
if use_icon then
ids.icon = player:hud_add({
hud_elem_type = "image",
position = pos,
scale = { x = 1, y = 1 },
text = "hudbars_icon_"..identifier..".png",
alignment = {x=-1,y=1},
offset = { x = offset.x - 3, y = offset.y },
})
end
ids.bar = player:hud_add({
hud_elem_type = "statbar",
position = pos,
text = "hudbars_bar_"..identifier..".png",
number = hud.value_to_barlength(start_value, start_max),
alignment = {x=-1,y=-1},
offset = offset,
})
ids.text = player:hud_add({
hud_elem_type = "text",
position = pos,
text = tostring(string.format(format_string, label, start_value, start_max)),
alignment = {x=1,y=1},
number = text_color,
direction = 0,
offset = { x = offset.x + 2, y = offset.y },
})
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state.hidden = start_hide
state.value = start_value
state.max = start_max
return ids, state
end
hudtable.identifier = identifier
hudtable.format_string = format_string
hudtable.label = label
hudtable.hudids = {}
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hudtable.hudstate = {}
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hud.hudbars_count= hud.hudbars_count + 1
hud.hudtables[identifier] = hudtable
end
function hud.change_hudbar(player, hudtable, new_value, new_max_value)
local name = player:get_player_name()
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hudtable.hudstate[name].value = new_value
hudtable.hudstate[name].max = new_max_value
if hudtable.hudstate[name].hidden == false then
player:hud_change(hudtable.hudids[name].bar, "number", hud.value_to_barlength(new_value, new_max_value))
player:hud_change(hudtable.hudids[name].text, "text",
tostring(string.format(hudtable.format_string, hudtable.label, new_value, new_max_value))
)
end
end
function hud.hide_hudbar(player, hudtable)
local name = player:get_player_name()
if(hudtable.hudstate[name].hidden == false) then
player:hud_change(hudtable.hudids[name].icon, "scale", {x=0,y=0})
player:hud_change(hudtable.hudids[name].bg, "scale", {x=0,y=0})
player:hud_change(hudtable.hudids[name].bar, "number", 0)
player:hud_change(hudtable.hudids[name].text, "text", "")
hudtable.hudstate[name].hidden = true
end
end
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function hud.unhide_hudbar(player, hudtable)
local name = player:get_player_name()
if(hudtable.hudstate[name].hidden) then
local name = player:get_player_name()
local value = hudtable.hudstate[name].value
local max = hudtable.hudstate[name].max
player:hud_change(hudtable.hudids[name].icon, "scale", {x=1,y=1})
player:hud_change(hudtable.hudids[name].bg, "scale", {x=1,y=1})
player:hud_change(hudtable.hudids[name].bar, "number", hud.value_to_barlength(value, max))
player:hud_change(hudtable.hudids[name].text, "text", tostring(string.format(hudtable.format_string, hudtable.label, value, max)))
hudtable.hudstate[name].hidden = false
end
end
--load custom settings
local set = io.open(minetest.get_modpath("hudbars").."/hud.conf", "r")
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if set then
dofile(minetest.get_modpath("hudbars").."/hud.conf")
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set:close()
end
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local function hide_builtin(player)
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player:hud_set_flags({crosshair = true, hotbar = true, healthbar = false, wielditem = true, breathbar = false})
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end
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local function custom_hud(player)
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local name = player:get_player_name()
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if minetest.setting_getbool("enable_damage") then
--health
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health_hud_icon[name] = player:hud_add({
hud_elem_type = "image",
position = HUD_HEALTH_POS,
scale = { x = 1, y = 1 },
text = "hudbars_icon_health.png",
alignment = {x=-1,y=1},
offset = { x = HUD_HEALTH_OFFSET.x - 3, y = HUD_HEALTH_OFFSET.y },
})
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health_hud_bg[name] = player:hud_add({
hud_elem_type = "image",
position = HUD_HEALTH_POS,
scale = { x = 1, y = 1 },
text = "hudbars_bar_background.png",
alignment = {x=1,y=1},
offset = { x = HUD_HEALTH_OFFSET.x - 1, y = HUD_HEALTH_OFFSET.y - 1 },
})
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health_hud[name] = player:hud_add({
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hud_elem_type = "statbar",
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position = HUD_HEALTH_POS,
text = "hudbars_bar_health.png",
number = hud.value_to_barlength(player:get_hp(), 20),
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alignment = {x=-1,y=-1},
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offset = HUD_HEALTH_OFFSET,
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})
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health_hud_text[name] = player:hud_add({
hud_elem_type = "text",
position = HUD_HEALTH_POS,
text = tostring(string.format("Health: %d/%d", player:get_hp(), 20)),
alignment = {x=1,y=1},
number = 0xFFFFFF,
direction = 0,
offset = { x = HUD_HEALTH_OFFSET.x + 2, y = HUD_HEALTH_OFFSET.y },
})
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--air
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local airnumber, airtext, airscale
local air = player:get_breath()
if air == 11 then
airnumber = 0
airtext = ""
airscale = {x=0, y=0}
else
airnumber = hud.value_to_barlength(math.min(air, 10), 10)
airtext = tostring(string.format("Breath: %d/%d", math.min(air, 10), 10))
airscale = {x=1, y=1}
end
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air_hud_icon[name] = player:hud_add({
hud_elem_type = "image",
position = HUD_AIR_POS,
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scale = airscale,
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text = "hudbars_icon_breath.png",
alignment = {x=-1,y=1},
offset = { x = HUD_AIR_OFFSET.x - 3, y = HUD_AIR_OFFSET.y },
})
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air_hud_bg[name] = player:hud_add({
hud_elem_type = "image",
position = HUD_AIR_POS,
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scale = airscale,
text = "hudbars_bar_background.png",
alignment = {x=1,y=1},
offset = { x = HUD_AIR_OFFSET.x - 1, y = HUD_AIR_OFFSET.y - 1 },
})
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air_hud[name] = player:hud_add({
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hud_elem_type = "statbar",
position = HUD_AIR_POS,
text = "hudbars_bar_breath.png",
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number = airnumber,
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alignment = {x=-1,y=-1},
offset = HUD_AIR_OFFSET,
})
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air_hud_text[name] = player:hud_add({
hud_elem_type = "text",
position = HUD_AIR_POS,
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text = airtext,
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alignment = {x=1,y=1},
number = 0x000000,
direction = 0,
offset = { x = HUD_AIR_OFFSET.x + 2, y = HUD_AIR_OFFSET.y },
})
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end
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end
-- update hud elemtens if value has changed
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local function update_hud(player)
local name = player:get_player_name()
--air
local air = tonumber(hud.air[name])
if player:get_breath() ~= air then
air = player:get_breath()
hud.air[name] = air
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local airnumber, airtext, airscale
if air == 11 then
airnumber = 0
airtext = ""
airscale = {x=0, y=0}
else
airnumber = hud.value_to_barlength(math.min(air, 10), 10)
airtext = tostring(string.format("Breath: %d/%d", math.min(player:get_breath(), 10), 10))
airscale = {x=1, y=1}
end
player:hud_change(air_hud[name], "number", airnumber)
player:hud_change(air_hud_text[name], "text", airtext)
player:hud_change(air_hud_icon[name], "scale", airscale)
player:hud_change(air_hud_bg[name], "scale", airscale)
end
--health
local hp = tonumber(hud.health[name])
if player:get_hp() ~= hp then
hp = player:get_hp()
hud.health[name] = hp
player:hud_change(health_hud[name], "number", hud.value_to_barlength(hp, 20))
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player:hud_change(health_hud_text[name], "text",
tostring(string.format("Health: %d/%d", hp, 20))
)
end
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end
minetest.register_on_joinplayer(function(player)
local name = player:get_player_name()
local inv = player:get_inventory()
hud.health[name] = player:get_hp()
local air = player:get_breath()
hud.air[name] = air
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minetest.after(0.5, function()
hide_builtin(player)
custom_hud(player)
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end)
end)
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local main_timer = 0
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local timer = 0
local timer2 = 0
minetest.after(2.5, function()
minetest.register_globalstep(function(dtime)
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main_timer = main_timer + dtime
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timer = timer + dtime
timer2 = timer2 + dtime
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if main_timer > HUD_TICK or timer > 4 then
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if main_timer > HUD_TICK then main_timer = 0 end
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for _,player in ipairs(minetest.get_connected_players()) do
local name = player:get_player_name()
-- only proceed if damage is enabled
if minetest.setting_getbool("enable_damage") then
local hp = player:get_hp()
-- update all hud elements
update_hud(player)
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end
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end
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end
if timer > 4 then timer = 0 end
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end)
end)