72 lines
2.3 KiB
Lua
72 lines
2.3 KiB
Lua
local mod_player_monoids = minetest.get_modpath("player_monoids") ~= nil
|
|
local mod_playerphysics = minetest.get_modpath("playerphysics") ~= nil
|
|
|
|
function weather_mod.add_physics(player, effect, value)
|
|
local id = weather_mod.modname .. ":" .. effect
|
|
if mod_player_monoids then
|
|
player_monoids[effect].add_change(player, value, id)
|
|
elseif mod_playerphysics then
|
|
playerphysics.add_physics_factor(player, effect, id, value)
|
|
else
|
|
local override = {}
|
|
override[effect] = value
|
|
player:set_physics_override(override)
|
|
end
|
|
end
|
|
|
|
function weather_mod.remove_physics(player, effect)
|
|
local id = weather_mod.modname .. ":" .. effect
|
|
if mod_player_monoids then
|
|
player_monoids[effect].del_change(player, id)
|
|
elseif mod_playerphysics then
|
|
playerphysics.remove_physics_factor(player, effect, id)
|
|
else
|
|
local override = {}
|
|
override[effect] = 1
|
|
player:set_physics_override(override)
|
|
end
|
|
end
|
|
|
|
-- function taken from weather mod
|
|
-- see https://github.com/theFox6/minetest_mod_weather/blob/master/weather/api.lua#L110
|
|
local function raycast(player, origin)
|
|
local hitpos = vector.add(player:get_pos(),vector.new(0,1,0))
|
|
local ray = minetest.raycast(origin,hitpos)
|
|
local o = ray:next()
|
|
if not o then return false end
|
|
if o.type~="object" then return false end -- hit node or something
|
|
if not o.ref:is_player() then return false end -- hit different object
|
|
if o.ref:get_player_name() ~= player:get_player_name() then
|
|
return false --hit other player
|
|
end
|
|
o = ray:next()
|
|
if o then
|
|
minetest.log("warning","[Believable Weather] raycast hit more after hitting the player\n"..
|
|
dump2(o,"o"))
|
|
end
|
|
return true
|
|
end
|
|
|
|
local function check_light(player)
|
|
return minetest.get_node_light(player:getpos(), 0.5) == 15
|
|
end
|
|
|
|
function weather_mod.is_outdoors(player, origin)
|
|
if weather_mod.settings.raycasting then
|
|
return raycast(player, origin)
|
|
else
|
|
return check_light(player)
|
|
end
|
|
end
|
|
|
|
function weather_mod.set_headwind(player, wind)
|
|
local movement = vector.normalize(player:get_player_velocity())
|
|
local product = vector.dot(movement, wind)
|
|
-- logistic function, scales between 0 and 2
|
|
-- see https://en.wikipedia.org/wiki/Logistic_function
|
|
local L = 2 -- maximum value
|
|
local k = 0.1 -- growth rate
|
|
local z = 1 -- midpoint
|
|
local factor = L / (1 + math.exp(-k * (product - z)))
|
|
weather_mod.add_physics(player, "speed", factor)
|
|
end |