mirror of
https://git.minetest.land/VoxeLibre/VoxeLibre.git
synced 2024-09-12 16:42:11 +02:00
93 lines
2.3 KiB
Lua
93 lines
2.3 KiB
Lua
local storage = minetest.get_mod_storage()
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local mod = mcl_minecarts
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-- Imports
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local CART_BLOCK_SIZE = mod.CART_BLOCK_SIZE
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assert(CART_BLOCK_SIZE)
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local cart_data = {}
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local cart_data_fail_cache = {}
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local cart_ids = storage:get_keys()
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local function get_cart_data(uuid)
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if cart_data[uuid] then return cart_data[uuid] end
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if cart_data_fail_cache[uuid] then return nil end
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local data = minetest.deserialize(storage:get_string("cart-"..uuid))
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if not data then
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cart_data_fail_cache[uuid] = true
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return nil
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else
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-- Repair broken data
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if not data.distance then data.distance = 0 end
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if data.distance == 0/0 then data.distance = 0 end
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if data.distance == -0/0 then data.distance = 0 end
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data.dir = vector.new(data.dir)
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data.connected_at = vector.new(data.connected_at)
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end
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cart_data[uuid] = data
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return data
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end
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mod.get_cart_data = get_cart_data
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-- Preload all cart data into memory
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for _,id in pairs(cart_ids) do
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local uuid = string.sub(id,6)
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get_cart_data(uuid)
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end
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local function save_cart_data(uuid)
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if not cart_data[uuid] then return end
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storage:set_string("cart-"..uuid,minetest.serialize(cart_data[uuid]))
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end
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mod.save_cart_data = save_cart_data
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function mod.update_cart_data(data)
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local uuid = data.uuid
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cart_data[uuid] = data
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cart_data_fail_cache[uuid] = nil
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save_cart_data(uuid)
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end
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function mod.destroy_cart_data(uuid)
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storage:set_string("cart-"..uuid,"")
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cart_data[uuid] = nil
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cart_data_fail_cache[uuid] = true
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end
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function mod.carts()
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return pairs(cart_data)
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end
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function mod.find_carts_by_block_map(block_map)
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local cart_list = {}
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for _,data in pairs(cart_data) do
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if data and data.connected_at then
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local pos = mod.get_cart_position(data)
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local block = vector.floor(vector.divide(pos,CART_BLOCK_SIZE))
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if block_map[vector.to_string(block)] then
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cart_list[#cart_list + 1] = data
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end
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end
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end
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return cart_list
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end
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function mod.add_blocks_to_map(block_map, min_pos, max_pos)
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local min = vector.floor(vector.divide(min_pos, CART_BLOCK_SIZE))
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local max = vector.floor(vector.divide(max_pos, CART_BLOCK_SIZE)) + vector.new(1,1,1)
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for z = min.z,max.z do
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for y = min.y,max.y do
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for x = min.x,max.x do
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block_map[ vector.to_string(vector.new(x,y,z)) ] = true
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end
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end
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end
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end
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minetest.register_on_shutdown(function()
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for uuid,_ in pairs(cart_data) do
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save_cart_data(uuid)
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end
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end)
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