mirror of
https://git.minetest.land/MineClone2/MineClone2.git
synced 2024-12-13 21:19:24 +01:00
102 lines
2.9 KiB
Lua
102 lines
2.9 KiB
Lua
mcl_loottables.register_entry = mcl_util.registration_function(mcl_loottables.entries)
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mcl_loottables.register_table = mcl_util.registration_function(mcl_loottables.tables, function(name, def)
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local function set_parents(parent)
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for _, child in ipairs(parent.children or parent.entries or parent.pools or {}) do
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child.parent = parent
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set_parents(child)
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end
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end
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set_parents(def)
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end)
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function mcl_loottables.get_entry_type(entry)
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return mcl_loottables.entries[entry.type]
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end
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function mcl_loottables.get_candidates(entries, data, func)
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local candidates = {}
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for _, entry in ipairs(entries) do
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local success = mcl_predicates.do_predicates(entry.conditions, data)
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if success then
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local children = entry.children
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if children then
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table.insert_all(candidates, mcl_loottables.get_candidates(children, data, mcl_loottables.get_entry_type(entry).preprocess))
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else
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table.insert(candidates, entry)
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end
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end
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if func and func(success, data) then
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break
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end
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end
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return candidates
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end
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function mcl_loottables.do_item_modifiers(itemstack, node, data)
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if node then
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mcl_item_modifiers.do_item_modifiers(itemstack, node.functions, data)
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mcl_loottables.do_item_modifiers(itemstack, node.parent, data)
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end
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end
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function mcl_loottables.do_pools(pools, functions, data)
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local luck = data.luck or 0
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local stacks = {}
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for _, pool in ipairs(pools or {}) do
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if mcl_predicates.do_predicates(pool.conditions, data) do
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local rolls = mcl_numbers.get_number(pool.rolls, data) + mcl_numbers.get_number(pool.bonus_rolls, data) * luck
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for i = 1, rolls do
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local candidates = mcl_loottables.get_candidates(pool.entries, data)
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if #candidates > 0 then
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local total_weight = 0
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local weights = {}
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for _, candidate in ipairs(candidates)
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total_weight = total_weight + math.floor((candidate.weight or 1) + (candidate.quality or 0) * luck)
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table.insert(weights, total_weight)
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end
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local selected
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local rnd = mcl_util.rand(data.pr, 0, weight - 1)
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for i, w in ipairs(weights) do
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if rnd < w then
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selected = candidates[i]
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break
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end
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end
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local pool_stacks = mcl_loottables.get_entry_type(entry).process(selected, data)
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for _, stack in ipairs(pool_stacks) do
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mcl_item_modifiers.do_item_modifiers(stack, selected, data)
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end
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table.insert_all(stacks, pool_stacks)
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end
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end
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end
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end
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return stacks
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end
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function mcl_loottables.get_loot(def, data)
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if type(def) == "string" then
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def = mcl_loottables.tables[def]
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end
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return mcl_loottables.do_pools(def.pools)
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end
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function mcl_loottables.drop_loot(def, data)
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local loot = mcl_loottables.get_loot(def, data)
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local old_loot = table.copy(loot)
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for _, stack in ipairs(old_loot) do
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local max_stack = stack:get_stack_max()
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while max_stack < stack:get_count() do
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table.insert(loot, stack:take_items(max_stack))
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end
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end
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return loot
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end
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