Consider max_items in complex drop analysis
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34
api.lua
34
api.lua
@ -56,25 +56,53 @@ minetest.after(0.01, function()
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})
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end
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-- Complex drops
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-- Complex drops. Yes, it's really complex!
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elseif type(def.drop) == "table" then
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--[[ Extract single items from the table and save them into dedicated tables
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to register them later, in order to avoid duplicates ]]
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to register them later, in order to avoid duplicates. These tables counts
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the total number of guaranteed drops and drops by chance (“maybes”) for each item.
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For “maybes”, the final count is the theoretical maximum number of items, not
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neccessarily the actual drop count. ]]
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local drop_guaranteed = {}
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local drop_maybe = {}
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-- This is for catching an obscure corner case: If the top items table has
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-- only items with rarity = 1, but max_items is set, then only the first
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-- max_items will be part of the drop, any later entries are logically
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-- impossible, so this variable is for keeping track of this
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local max_items_left = def.drop.max_items
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-- For checking whether we still encountered only guaranteed only so far;
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-- for the first “maybe” item it will become false which will cause ALL
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-- later items to be considered “maybes”.
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-- A common idiom is:
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-- { max_items 1, { items = {
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-- { items={"example:1"}, rarity = 5 },
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-- { items={"example:2"}, rarity = 1 }, }}}
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-- example:2 must be considered a “maybe” because max_items is set and it
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-- appears after a “maybe”
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local max_start = true
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-- Let's iterate through the items madness!
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for i=1,#def.drop.items do
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if max_items_left ~= nil and max_items_left <= 0 then break end
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local itit = def.drop.items[i]
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for j=1,#itit.items do
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local dstack = ItemStack(itit.items[j])
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if not dstack:is_empty() and dstack:get_name() ~= name then
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local dname = dstack:get_name()
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local dcount = dstack:get_count()
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if #itit.items == 1 and itit.rarity == 1 then
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-- Guaranteed drops AND we are not yet in “maybe mode”
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if #itit.items == 1 and itit.rarity == 1 and max_start then
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if drop_guaranteed[dname] == nil then
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drop_guaranteed[dname] = 0
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end
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drop_guaranteed[dname] = drop_guaranteed[dname] + dcount
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if max_items_left ~= nil then
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max_items_left = max_items_left - 1
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if max_items_left <= 0 then break end
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end
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-- Drop was a “maybe”
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else
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if max_items_left ~= nil then max_start = false end
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if drop_maybe[dname] == nil then
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drop_maybe[dname] = 0
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end
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