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MineClone2/mods/PLAYER/mcl_hunger/init.lua

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local S = minetest.get_translator("mcl_hunger")
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mcl_hunger = {}
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--[[ This variable tells you if the hunger gameplay mechanic is active.
The state of the hunger mechanic will be determined at game start.
Hunger is enabled when damage is enabled.
If the damage setting is changed within the game, this does NOT
update the hunger mechanic, so the game must be restarted for this
to take effect. ]]
if minetest.settings:get_bool("enable_damage") == true then
mcl_hunger.active = true
else
mcl_hunger.active = false
end
mcl_hunger.HUD_TICK = 0.1
-- Exhaustion increase
mcl_hunger.EXHAUST_DIG = 5 -- after digging node
mcl_hunger.EXHAUST_JUMP = 50 -- jump
mcl_hunger.EXHAUST_SPRINT_JUMP = 200 -- jump while sprinting
mcl_hunger.EXHAUST_ATTACK = 100 -- hit an enemy
mcl_hunger.EXHAUST_SWIM = 10 -- player movement in water
mcl_hunger.EXHAUST_SPRINT = 100 -- sprint (per node)
mcl_hunger.EXHAUST_DAMAGE = 100 -- taking damage (protected by armor)
mcl_hunger.EXHAUST_REGEN = 6000 -- Regenerate 1 HP
mcl_hunger.EXHAUST_LVL = 4000 -- at what exhaustion player saturation gets lowered
mcl_hunger.SATURATION_INIT = 5 -- Initial saturation for new/respawning players
-- Debug Mode. If enabled, saturation and exhaustion are shown as well.
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-- NOTE: Only updated when settings are loaded.
mcl_hunger.debug = false
-- Cooldown timers for each player, to force a short delay between consuming 2 food items
mcl_hunger.last_eat = {}
dofile(minetest.get_modpath("mcl_hunger").."/api.lua")
dofile(minetest.get_modpath("mcl_hunger").."/hunger.lua")
dofile(minetest.get_modpath("mcl_hunger").."/register_foods.lua")
--[[ IF HUNGER IS ENABLED ]]
if mcl_hunger.active == true then
-- Read debug mode setting
-- The setting should only be read at the beginning, this mod is not
-- prepared to change this setting later.
mcl_hunger.debug = minetest.settings:get_bool("mcl_hunger_debug")
if mcl_hunger.debug == nil then
mcl_hunger.debug = false
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end
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--[[ Data value format notes:
Hunger values is identical to Minecraft's and ranges from 0 to 20.
Exhaustion and saturation values are stored as integers, unlike in Minecraft.
Exhaustion is Minecraft exhaustion times 1000 and ranges from 0 to 4000.
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.
This field uses the original Minecraft value.
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]]
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-- Count number of poisonings a player has at once
mcl_hunger.poison_hunger = {} -- food poisoning, increasing hunger
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-- HUD
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local function init_hud(player)
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hb.init_hudbar(player, "hunger", mcl_hunger.get_hunger(player))
if mcl_hunger.debug then
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))
end
end
-- HUD updating functions for Debug Mode. No-op if not in Debug Mode
function mcl_hunger.update_saturation_hud(player, saturation, hunger)
if mcl_hunger.debug then
hb.change_hudbar(player, "saturation", saturation, hunger)
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end
end
function mcl_hunger.update_exhaustion_hud(player, exhaustion)
if mcl_hunger.debug then
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hb.change_hudbar(player, "exhaustion", exhaustion)
end
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end
-- register saturation hudbar
hb.register_hudbar("hunger", 0xFFFFFF, S("Food"), { icon = "hbhunger_icon.png", bgicon = "hbhunger_bgicon.png", bar = "hbhunger_bar.png" }, 1, 20, 20, false)
if mcl_hunger.debug then
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" }, 1, mcl_hunger.SATURATION_INIT, 200, false, S("%s: %.1f/%d"))
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" }, 1, 0, mcl_hunger.EXHAUST_LVL, false, S("%s: %d/%d"))
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end
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minetest.register_on_joinplayer(function(player)
local name = player:get_player_name()
mcl_hunger.init_player(player)
init_hud(player)
mcl_hunger.poison_hunger[name] = 0
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mcl_hunger.last_eat[name] = -1
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end)
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
mcl_hunger.set_hunger(player, h, false)
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mcl_hunger.set_saturation(player, s, false)
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)
mcl_hunger.update_exhaustion_hud(player, e)
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end)
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-- PvP combat exhaustion
minetest.register_on_punchplayer(function(victim, puncher, time_from_last_punch, tool_capabilities, dir, damage)
if puncher:is_player() then
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mcl_hunger.exhaust(puncher:get_player_name(), mcl_hunger.EXHAUST_ATTACK)
end
end)
-- Exhaust on taking damage
minetest.register_on_player_hpchange(function(player, hp_change)
if hp_change < 0 then
local name = player:get_player_name()
mcl_hunger.exhaust(name, mcl_hunger.EXHAUST_DAMAGE)
end
end)
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local main_timer = 0
local timer = 0 -- Half second timer
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)
main_timer = main_timer + dtime
timer = timer + dtime
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if main_timer > mcl_hunger.HUD_TICK or timer > 0.25 then
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if main_timer > mcl_hunger.HUD_TICK then main_timer = 0 end
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for _,player in pairs(minetest.get_connected_players()) do
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local name = player:get_player_name()
local h = tonumber(mcl_hunger.get_hunger(player))
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local hp = player:get_hp()
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if timer > 0.25 then
-- Slow health regeneration, and hunger damage (every 4s).
-- Regeneration rate based on tutorial video <https://www.youtube.com/watch?v=zs2t-xCVHBo>.
-- Minecraft Wiki seems to be wrong in claiming that full hunger gives 0.5s regen rate.
if timerMult == 0 then
if h >= 18 and hp > 0 and hp < 20 then
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-- +1 HP, +exhaustion
player:set_hp(hp+1)
mcl_hunger.exhaust(name, mcl_hunger.EXHAUST_REGEN)
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mcl_hunger.update_exhaustion_hud(player, mcl_hunger.get_exhaustion(player))
elseif h == 0 then
-- Damage hungry player down to 1 HP
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-- TODO: Allow starvation at higher difficulty levels
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if hp-1 > 0 then
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mcl_util.deal_damage(player, 1, {type = "starve"})
end
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end
end
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end
end
end
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if timer > 0.25 then
timer = 0
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timerMult = timerMult + 2
if timerMult > 7 then
timerMult = 0
end
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end
end)
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--[[ IF HUNGER IS NOT ENABLED ]]
else
minetest.register_on_joinplayer(function(player)
mcl_hunger.init_player(player)
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mcl_hunger.last_eat[player:get_player_name()] = -1
end)
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end