251 lines
8.7 KiB
Lua
251 lines
8.7 KiB
Lua
local S
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if (minetest.get_modpath("intllib")) then
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S = intllib.Getter()
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else
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S = function ( s ) return s end
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end
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mcl_hunger = {}
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mcl_hunger.exhaust = function() end
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mcl_hunger.HUD_TICK = 0.1
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-- Exhaustion increase
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mcl_hunger.EXHAUST_DIG = 5 -- after digging node
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mcl_hunger.EXHAUST_JUMP = 50 -- jump
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mcl_hunger.EXHAUST_SPRINT_JUMP = 200 -- TODO: jump while sprinting
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mcl_hunger.EXHAUST_ATTACK = 100 -- hit an enemy
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mcl_hunger.EXHAUST_SWIM = 10 -- player movement in water
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mcl_hunger.EXHAUST_SPRINT = 100 -- sprint (per node)
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mcl_hunger.EXHAUST_DAMAGE = 100 -- TODO (mostly done): taking damage (protected by armor)
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mcl_hunger.EXHAUST_REGEN = 6000 -- Regenerate 1 HP
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mcl_hunger.EXHAUST_LVL = 4000 -- at what exhaustion player saturation gets lowered
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mcl_hunger.SATURATION_INIT = 5 -- Initial saturation for new/respawning players
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mcl_hunger.active = false
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if minetest.setting_getbool("enable_damage") then
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mcl_hunger.active = true
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-- Debug Mode. If enabled, saturation and exhaustion are shown as well.
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-- NOTE: Read-only. The setting should only be read at the beginning, this mod is not
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-- prepared to change this setting later.
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mcl_hunger.debug = minetest.setting_getbool("mcl_hunger_debug")
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if mcl_hunger.debug == nil then
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mcl_hunger.debug = false
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end
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--[[ Data value format notes:
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Hunger values is identical to Minecraft's and ranges from 0 to 20.
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Exhaustion and saturation values are stored as integers, unlike in Minecraft.
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Exhaustion is Minecraft exhaustion times 1000 and ranges from 0 to 4000.
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Saturation is Minecraft saturation and ranges from 0 to 20.
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Food saturation is stored in the custom item definition field _mcl_saturation.
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This field uses the original Minecraft value.
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]]
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-- Count number of poisonings a player has at once
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mcl_hunger.poison_damage = {} -- damaging poison
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mcl_hunger.poison_hunger = {} -- food poisoning, increasing hunger
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-- Cooldown timers for each player, to force a short delay between consuming 2 food items
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mcl_hunger.last_eat = {}
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-- HUD item ids
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local hunger_hud = {}
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local function init_hud(player)
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hb.init_hudbar(player, "hunger", mcl_hunger.get_hunger(player))
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if mcl_hunger.debug then
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hb.init_hudbar(player, "saturation", mcl_hunger.get_saturation(player), mcl_hunger.get_hunger(player))
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hb.init_hudbar(player, "exhaustion", mcl_hunger.get_exhaustion(player))
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end
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end
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-- HUD updating functions for Debug Mode. No-op if not in Debug Mode
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function mcl_hunger.update_saturation_hud(player, saturation, hunger)
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if mcl_hunger.debug then
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hb.change_hudbar(player, "saturation", saturation, hunger)
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end
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end
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function mcl_hunger.update_exhaustion_hud(player, exhaustion)
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if mcl_hunger.debug then
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hb.change_hudbar(player, "exhaustion", exhaustion)
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end
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end
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dofile(minetest.get_modpath("mcl_hunger").."/hunger.lua")
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-- register saturation hudbar
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hb.register_hudbar("hunger", 0xFFFFFF, S("Food"), { icon = "hbhunger_icon.png", bgicon = "hbhunger_bgicon.png", bar = "hbhunger_bar.png" }, 20, 20, false)
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if mcl_hunger.debug then
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hb.register_hudbar("saturation", 0xFFFFFF, S("Saturation"), { icon = "mcl_hunger_icon_saturation.png", bgicon = "mcl_hunger_bgicon_saturation.png", bar = "mcl_hunger_bar_saturation.png" }, mcl_hunger.SATURATION_INIT, 200, false, S("%s: %.1f/%d"))
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hb.register_hudbar("exhaustion", 0xFFFFFF, S("Exhaust."), { icon = "mcl_hunger_icon_exhaustion.png", bgicon = "mcl_hunger_bgicon_exhaustion.png", bar = "mcl_hunger_bar_exhaustion.png" }, 0, mcl_hunger.EXHAUST_LVL, false, S("%s: %d/%d"))
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end
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-- API START --
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mcl_hunger.get_hunger = function(player)
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return tonumber(player:get_attribute("mcl_hunger:hunger")) or 20
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end
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mcl_hunger.get_saturation = function(player)
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return tonumber(player:get_attribute("mcl_hunger:saturation")) or mcl_hunger.SATURATION_INIT
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end
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mcl_hunger.get_exhaustion = function(player)
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return tonumber(player:get_attribute("mcl_hunger:exhaustion")) or 0
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end
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mcl_hunger.set_hunger = function(player, hunger, update_hudbars)
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hunger = math.min(20, math.max(0, hunger))
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player:set_attribute("mcl_hunger:hunger", tostring(hunger))
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if update_hudbars ~= false then
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hb.change_hudbar(player, "hunger", hunger)
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mcl_hunger.update_saturation_hud(player, nil, hunger)
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end
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return true
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end
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mcl_hunger.set_saturation = function(player, saturation, update_hudbar)
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saturation = math.min(mcl_hunger.get_hunger(player), math.max(0, saturation))
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player:set_attribute("mcl_hunger:saturation", tostring(saturation))
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if update_hudbar ~= false then
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mcl_hunger.update_saturation_hud(player, saturation)
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end
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return true
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end
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mcl_hunger.set_exhaustion = function(player, exhaustion, update_hudbar)
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exhaustion = math.min(mcl_hunger.EXHAUST_LVL, math.max(0.0, exhaustion))
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player:set_attribute("mcl_hunger:exhaustion", tostring(exhaustion))
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if update_hudbar ~= false then
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mcl_hunger.update_exhaustion_hud(player, exhaustion)
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end
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return true
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end
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-- END OF API --
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minetest.register_on_newplayer(function(player)
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local name = player:get_player_name()
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mcl_hunger.set_hunger(player, 20, false)
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mcl_hunger.set_saturation(player, mcl_hunger.SATURATION_INIT, false)
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mcl_hunger.set_exhaustion(player, 0, false)
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end)
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minetest.register_on_joinplayer(function(player)
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local name = player:get_player_name()
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init_hud(player)
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mcl_hunger.poison_damage[name] = 0
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mcl_hunger.poison_hunger[name] = 0
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mcl_hunger.last_eat[name] = -1
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end)
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minetest.register_on_respawnplayer(function(player)
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-- reset hunger, related values and poison
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local name = player:get_player_name()
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mcl_hunger.stop_poison(player)
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mcl_hunger.last_eat[name] = -1
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local h, s, e = 20, mcl_hunger.SATURATION_INIT, 0
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mcl_hunger.set_hunger(player, h, false)
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mcl_hunger.set_saturation(player, s, false)
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mcl_hunger.set_exhaustion(player, e, false)
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hb.change_hudbar(player, "hunger", h)
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mcl_hunger.update_saturation_hud(player, s, h)
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mcl_hunger.update_exhaustion_hud(player, e)
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end)
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-- PvP combat exhaustion
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minetest.register_on_punchplayer(function(victim, puncher, time_from_last_punch, tool_capabilities, dir, damage)
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if victim:is_player() and puncher:is_player() then
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mcl_hunger.exhaust(victim:get_player_name(), mcl_hunger.EXHAUST_DAMAGE)
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mcl_hunger.exhaust(puncher:get_player_name(), mcl_hunger.EXHAUST_ATTACK)
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end
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end)
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function mcl_hunger.exhaust(playername, increase)
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local player = minetest.get_player_by_name(playername)
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if not player then return false end
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mcl_hunger.set_exhaustion(player, mcl_hunger.get_exhaustion(player) + increase)
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if mcl_hunger.get_exhaustion(player) >= mcl_hunger.EXHAUST_LVL then
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mcl_hunger.set_exhaustion(player, 0.0)
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local h = nil
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local satuchanged = false
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local s = mcl_hunger.get_saturation(player)
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if s > 0 then
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mcl_hunger.set_saturation(player, math.max(s - 1.0, 0))
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satuchanged = true
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elseif s <= 0.0001 then
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h = mcl_hunger.get_hunger(player)
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h = math.max(h-1, 0)
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mcl_hunger.set_hunger(player, h)
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satuchanged = true
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end
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if satuchanged then
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if h ~= nil then h = h end
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mcl_hunger.update_saturation_hud(player, mcl_hunger.get_saturation(player), h)
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end
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end
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mcl_hunger.update_exhaustion_hud(player, mcl_hunger.get_exhaustion(player))
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return true
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end
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function mcl_hunger.saturate(playername, increase, update_hudbar)
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local player = minetest.get_player_by_name(playername)
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mcl_hunger.set_saturation(player, math.min(mcl_hunger.get_saturation(player) + increase, mcl_hunger.get_hunger(player)))
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if update_hudbar ~= false then
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mcl_hunger.update_saturation_hud(player, mcl_hunger.get_saturation(player), mcl_hunger.get_hunger(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 -- Half second timer
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local timerMult = 1 -- Cycles from 0 to 7, each time when timer hits half a second
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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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if main_timer > mcl_hunger.HUD_TICK or timer > 0.5 then
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if main_timer > mcl_hunger.HUD_TICK then main_timer = 0 end
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for _,player in ipairs(minetest.get_connected_players()) do
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local name = player:get_player_name()
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local h = tonumber(mcl_hunger.get_hunger(player))
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local hp = player:get_hp()
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if timer > 0.5 then
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-- Slow health regeneration, and hunger damage (every 4s).
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-- Regeneration rate based on tutorial video <https://www.youtube.com/watch?v=zs2t-xCVHBo>.
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-- Minecraft Wiki seems to be wrong in claiming that full hunger gives 0.5s regen rate.
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if timerMult == 0 then
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if h >= 18 and hp > 0 and hp < 20 then
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-- +1 HP, +exhaustion
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player:set_hp(hp+1)
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mcl_hunger.exhaust(name, mcl_hunger.EXHAUST_REGEN)
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mcl_hunger.update_exhaustion_hud(player, mcl_hunger.get_exhaustion(player))
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elseif h == 0 then
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-- Damage hungry player down to 1 HP
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if hp-1 >= 0 then
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player:set_hp(hp-1)
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end
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end
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end
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end
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end
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end
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if timer > 0.5 then
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timer = 0
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timerMult = timerMult + 1
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if timerMult > 7 then
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timerMult = 0
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end
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end
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end)
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end
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