--[[ # Player Damage Effect Use this effect to damage a player during dangerous weather events. Expects a table as the parameter containing the following values: - value [1]: The amount of damage to be applied per successful roll. - chance [1]: Defines a 1/x roll per cycle for the player to get damaged. Higher values result in less frequent damage. - check [nil]: Use an additional outdoors check before applying damage. Consists of the following values: - type <"light"|"raycast"> ["light"] (Whether the light level should be used a raycast should be performed) - height [0] (Height offset of weather origin from the player. Only used for raycasts) - velocity [1] (Velocity of damaging particles. Only used for raycasts) - use_wind [true] (Whether the wind should be factored in. Only used for raycasts) ]] if not minetest.is_yes(minetest.settings:get_bool("enable_damage")) or not climate_mod.settings.damage then return end local EFFECT_NAME = "climate_api:damage" local rng = PcgRandom(7819792) local function check_hit(player, ray) local ppos = vector.add(player:get_pos(), {x=0, y=1, z=0}) if ray.type ~= nil and ray.type ~= "light" and ray.type ~= "raycast" then minetest.log("warning", "[Climate API] Invalid damage check configuration") return false end -- use light level if specified or in performance mode if ray.type == nil or ray.type == "light" or not climate_mod.settings.raycast then return minetest.get_node_light(ppos, 0.5) == 15 end -- use raycating to factor in wind speed local origin = vector.add(ppos, {x = 0, y = ray.height or 0, z = 0 }) if ray.use_wind ~= false then local wind = climate_api.environment.get_wind() local velocity = ray.velocity or 1 local windpos = vector.multiply( vector.normalize(vector.add({ x = 0, y = -velocity, z = 0 }, wind)), -vector.length(wind) ) origin = vector.add(origin, windpos) end local ray = minetest.raycast(origin, ppos) local obj = ray:next() -- found nothing if obj == nil then return false end -- found node if obj.type ~= "object" then return false end -- found different entity if not obj.ref:is_player() then return false end -- found another player if obj.ref:get_player_name() ~= player:get_player_name() then return false end return true end local function calc_damage(player, dmg) if dmg.value == nil then dmg.value = 1 end if dmg.chance == nil then dmg.chance = 1 end -- check if damage should be applied if rng:next(1, dmg.chance) ~= 1 then return 0 end if dmg.check ~= nil then -- check for obstacles in the way if not check_hit(player, dmg.check) then return 0 end end return dmg.value end local function handle_effect(player_data) for playername, data in pairs(player_data) do local player = minetest.get_player_by_name(playername) local hp = player:get_hp() for weather, dmg in pairs(data) do hp = hp - calc_damage(player, dmg) end -- deal damage to player player:set_hp(hp, "weather damage") end end climate_api.register_effect(EFFECT_NAME, handle_effect, "tick") climate_api.set_effect_cycle(EFFECT_NAME, climate_api.MEDIUM_CYCLE)