Stamina mod.
This mod implements a reduced version of BlockMen's hunger+hud mod, implementing a player "stamina" stat that converts food hp_change to stamina points. Stamina points heal the player over time if they are available and higher than the HP amount.
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README.txt
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README.txt
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Minetest mod "Stamina"
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=====================
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(C) 2015 - BlockMen
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(C) 2016 - Auke Kok <sofar@foo-projects.org>
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About this mod:
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~~~~~~~~~~~~~~~
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This mod adds a stamina, or "hunger" echanic to Minetest. Actions like
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crafting, walking, digging or fighting make the player exhausted. When
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enough exhaustion has been accumulated, the player gets more hungry,
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and loses stamina.
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If a player is low on stamina, they start taking periodical damage,
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and ultimately will die if they do not eat food.
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Eating food no longer heals the player. Instead, it increases the
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stamina of the player. The stamina bar shows how well fed the player
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is. More bread pieces means more stamina.
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For Modders:
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~~~~~~~~~~~~
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This mod intercepts minetest.item_eat(), and applies the hp_change
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as staminachange. The value can be positive (increase stamina) or
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negative (periodically damage the player by 1 hp).
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Callbacks that are registered via minetest.register_on_item_eat()
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are called after this mod, so the itemstack will have changed already
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when callbacks are called. You can get the original itemstack as 6th
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parameter of your function then.
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License:
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~~~~~~~~
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Code:
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- all code LGPL-2.1+
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Textures:
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- stamina_hud_poison.png - BlockMen (CC-BY 3.0)
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- stamina_hud_fg.png - PilzAdam (WTFPL), modified by BlockMen
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- stamina_hud_bg.png - PilzAdam (WTFPL), modified by BlockMen
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Sounds:
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- stamina_eat.*.ogg - http://www.freesound.org/people/sonictechtonic/sounds/242215/ CC-BY-3.0
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1
depends.txt
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depends.txt
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default
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description.txt
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description.txt
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Adds stamina and hunger effects.
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init.lua
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init.lua
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stamina = {}
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local stamina_players = {}
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STAMINA_TICK = 800 -- time in seconds after that 1 stamina point is taken
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STAMINA_HEALTH_TICK = 4 -- time in seconds after player gets healed/damaged
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STAMINA_MOVE_TICK = 0.5 -- time in seconds after the movement is checked
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STAMINA_EXHAUST_DIG = 3 -- exhaustion increased this value after digged node
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STAMINA_EXHAUST_PLACE = 1 -- exhaustion increased this value after placed
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STAMINA_EXHAUST_MOVE = 1.5 -- exhaustion increased this value if player movement detected
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STAMINA_EXHAUST_LVL = 160 -- at what exhaustion player saturation gets lowered
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STAMINA_HEAL = 1 -- number of HP player gets healed after STAMINA_HEALTH_TICK
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STAMINA_HEAL_LVL = 5 -- lower level of saturation needed to get healed
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STAMINA_STARVE = 1 -- number of HP player gets damaged by stamina after STAMINA_HEALTH_TICK
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STAMINA_STARVE_LVL = 3 -- level of staturation that causes starving
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STAMINA_MAX = 30 -- maximum level of saturation
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STAMINA_VISUAL_MAX = 20 -- hud bar extends only to 20
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local function stamina_read(player)
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local inv = player:get_inventory()
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if not inv then
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return nil
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end
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-- itemstack storage is offest by 1 to make the math work
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local hgp = inv:get_stack("stamina", 1):get_count()
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if hgp == 0 then
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hgp = 21
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inv:set_stack("stamina", 1, ItemStack({name = ":", count = hgp}))
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end
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return math.min(STAMINA_MAX + 1, hgp) - 1
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end
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local function stamina_save(player)
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local inv = player:get_inventory()
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if not inv then
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return nil
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end
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local name = player:get_player_name()
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local level = stamina_players[name].level
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level = math.min(STAMINA_MAX, level)
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level = math.max(level, 0)
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inv:set_stack("stamina", 1, ItemStack({name = ":", count = level + 1}))
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return true
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end
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local function stamina_update(player, level)
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local name = player:get_player_name()
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if not name then
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return false
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end
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local old = stamina_players[name].level
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if level == old then
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return
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end
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stamina_players[name].level = level
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player:hud_change(stamina_players[name].hud_id, "number", math.min(STAMINA_VISUAL_MAX, level))
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stamina_save(player)
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end
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local function stamina_node_actions(pos, oldnode, player, ext)
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if not player or not player:is_player() 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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if not name or not stamina_players[name] then
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return
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end
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local exhaust = stamina_players[name].exhaust
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if not exhaust then
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stamina_players[name].exhaust = 0
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end
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local new = STAMINA_EXHAUST_PLACE
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-- placenode event
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if not ext then
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new = STAMINA_EXHAUST_DIG
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end
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-- assume its send by action_timer(globalstep)
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if not pos and not oldnode then
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new = STAMINA_EXHAUST_MOVE
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end
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exhaust = exhaust + new
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if exhaust > STAMINA_EXHAUST_LVL then
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exhaust = 0
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local h = tonumber(stamina_players[name].level)
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if h > 0 then
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stamina_update(player, h - 1)
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end
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end
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stamina_players[name].exhaust = exhaust
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end
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local function stamina_craft_actions(itemstack, player, old_craft_grid, craft_inv)
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if not player or not player:is_player() 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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if not name or not stamina_players[name] then
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return
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end
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local exhaust = stamina_players[name].exhaust
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if not exhaust then
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stamina_players[name].exhaust = 0
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return
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end
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if exhaust > STAMINA_EXHAUST_LVL then
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exhaust = 0
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local h = tonumber(stamina_players[name].level)
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if h > 0 then
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stamina_update(player, h - 1)
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end
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end
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stamina_players[name].exhaust = exhaust
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end
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-- TODO: add stamina for fighting
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-- Time based stamina functions
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local stamina_timer = 0
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local health_timer = 0
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local action_timer = 0
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local function stamina_globaltimer(dtime)
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stamina_timer = stamina_timer + dtime
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health_timer = health_timer + dtime
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action_timer = action_timer + dtime
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if action_timer > STAMINA_MOVE_TICK then
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for _,player in ipairs(minetest.get_connected_players()) do
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local controls = player:get_player_control()
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-- Determine if the player is walking
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if controls.up or controls.down or controls.left or controls.right then
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stamina_node_actions(nil, nil, player)
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end
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end
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action_timer = 0
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end
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-- lower saturation by 1 point after STAMINA_TICK second(s)
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if stamina_timer > STAMINA_TICK then
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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 tab = stamina_players[name]
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if tab then
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local h = tab.level
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if h > 0 then
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stamina_update(player, h - 1)
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end
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end
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end
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stamina_timer = 0
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end
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-- heal or damage player, depending on saturation
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if health_timer > STAMINA_HEALTH_TICK then
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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 tab = stamina_players[name]
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if tab then
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local air = player:get_breath() or 0
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local hp = player:get_hp()
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-- don't heal if drowning or dead
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-- TODO: don't heal if poisoned?
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local h = tonumber(tab.level)
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if h >= STAMINA_HEAL_LVL and h >= hp and hp > 0 and air > 0 then
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player:set_hp(hp + STAMINA_HEAL)
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stamina_update(player, h - 1)
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end
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-- or damage player by 1 hp if saturation is < 2 (of 30)
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if tonumber(tab.level) < STAMINA_STARVE_LVL then
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player:set_hp(hp - STAMINA_STARVE)
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end
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end
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end
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health_timer = 0
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end
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end
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local function poison_player(ticks, time, elapsed, user)
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if elapsed <= ticks then
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minetest.after(time, poison_player, ticks, time, elapsed + 1, user)
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else
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local name = user:get_player_name()
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user:hud_change(stamina_players[name].hud_id, "text", "stamina_hud_fg.png")
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end
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local hp = user:get_hp() -1 or 0
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if hp > 0 then
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user:set_hp(hp)
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end
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end
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-- override core.do_item_eat() so we can redirect hp_change to stamina
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core.do_item_eat = function(hp_change, replace_with_item, itemstack, user, pointed_thing)
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local old_itemstack = itemstack
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itemstack = stamina.eat(hp_change, replace_with_item, itemstack, user, pointed_thing)
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for _, callback in pairs(core.registered_on_item_eats) do
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local result = callback(hp_change, replace_with_item, itemstack, user, pointed_thing, old_itemstack)
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if result then
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return result
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end
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end
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return itemstack
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end
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-- not local since it's called from within core context
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function stamina.eat(hp_change, replace_with_item, itemstack, user, pointed_thing)
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if not itemstack then
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return itemstack
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end
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if not user then
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return itemstack
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end
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local name = user:get_player_name()
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if not stamina_players[name] then
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return itemstack
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end
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local level = tonumber(stamina_players[name].level or 0)
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if level >= STAMINA_MAX then
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return itemstack
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end
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if level < STAMINA_MAX and hp_change > 0 then
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level = level + hp_change
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stamina_update(user, level)
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end
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if hp_change < 0 then
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user:hud_change(stamina_players[name].hud_id, "text", "stamina_hud_poison.png")
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poison_player(2.0, -hp_change, 0, user)
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end
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minetest.sound_play("stamina_eat", {to_player = name, gain = 0.7})
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if replace_with_item then
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if itemstack:is_empty() then
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itemstack:add_item(replace_with_item)
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else
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local inv = user:get_inventory()
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if inv:room_for_item("main", {name=replace_with_item}) then
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inv:add_item("main", replace_with_item)
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else
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local pos = user:getpos()
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pos.y = math.floor(pos.y + 0.5)
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core.add_item(pos, replace_with_item)
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end
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end
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else
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itemstack:take_item()
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end
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return itemstack
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end
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-- stamina is disabled if damage is disabled
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if minetest.setting_getbool("enable_damage") and minetest.is_yes(minetest.setting_get("enable_stamina") or "1") then
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minetest.register_on_joinplayer(function(player)
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local inv = player:get_inventory()
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inv:set_size("stamina", 1)
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local name = player:get_player_name()
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stamina_players[name] = {}
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stamina_players[name].level = stamina_read(player)
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stamina_players[name].exhaust = 0
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local level = math.min(stamina_players[name].level, STAMINA_VISUAL_MAX)
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local id = player:hud_add({
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name = "stamina",
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hud_elem_type = "statbar",
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position = {x = 0.5, y = 1},
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size = {x = 24, y = 24},
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text = "stamina_hud_fg.png",
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number = level,
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alignment = {x = -1, y = -1},
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offset = {x = -266, y = -110},
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background = "stamina_hud_bg.png",
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max = 0,
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})
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stamina_players[name].hud_id = id
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end)
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minetest.register_globalstep(stamina_globaltimer)
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minetest.register_on_placenode(stamina_node_actions)
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minetest.register_on_dignode(stamina_node_actions)
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minetest.register_on_craft(stamina_craft_actions)
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minetest.register_on_respawnplayer(function(player)
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stamina_update(player, STAMINA_VISUAL_MAX)
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end)
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end
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BIN
sounds/stamina_eat.1.ogg
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BIN
sounds/stamina_eat.1.ogg
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Binary file not shown.
BIN
sounds/stamina_eat.2.ogg
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BIN
sounds/stamina_eat.2.ogg
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BIN
sounds/stamina_eat.3.ogg
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BIN
sounds/stamina_eat.3.ogg
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BIN
textures/stamina_hud_bg.png
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BIN
textures/stamina_hud_bg.png
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After Width: | Height: | Size: 417 B |
BIN
textures/stamina_hud_fg.png
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BIN
textures/stamina_hud_fg.png
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Binary file not shown.
After Width: | Height: | Size: 522 B |
BIN
textures/stamina_hud_poison.png
Normal file
BIN
textures/stamina_hud_poison.png
Normal file
Binary file not shown.
After Width: | Height: | Size: 3.1 KiB |
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