techages/mods/PLAYER/playerphysics/init.lua

46 lines
1.4 KiB
Lua

playerphysics = {}
local function calculate_attribute_product(player, attribute)
local a = minetest.deserialize(player:get_meta():get_string("playerphysics:physics"))
local product = 1
if a == nil or a[attribute] == nil then
return product
end
local factors = a[attribute]
if type(factors) == "table" then
for _, factor in pairs(factors) do
product = product * factor
end
end
return product
end
function playerphysics.add_physics_factor(player, attribute, id, value)
local meta = player:get_meta()
local a = minetest.deserialize(meta:get_string("playerphysics:physics"))
if a == nil then
a = { [attribute] = { [id] = value } }
elseif a[attribute] == nil then
a[attribute] = { [id] = value }
else
a[attribute][id] = value
end
meta:set_string("playerphysics:physics", minetest.serialize(a))
local raw_value = calculate_attribute_product(player, attribute)
player:set_physics_override({[attribute] = raw_value})
end
function playerphysics.remove_physics_factor(player, attribute, id)
local meta = player:get_meta()
local a = minetest.deserialize(meta:get_string("playerphysics:physics"))
if a == nil or a[attribute] == nil then
-- Nothing to remove
return
else
a[attribute][id] = nil
end
meta:set_string("playerphysics:physics", minetest.serialize(a))
local raw_value = calculate_attribute_product(player, attribute)
player:set_physics_override({[attribute] = raw_value})
end