mirror of
https://github.com/Keyslam-Group/Concord.git
synced 2025-09-02 04:13:58 -04:00
a65f88dd5e
main changes: - add parameter and return types where applicable - use @module and @classmod tags at the top of files - remove some redundant descriptions of return values, especially for functions that return a boolean recommended next steps: - more consistent grammar - add links to classes and functions in descriptions where appropriate - be consistent about naming Systems vs. SystemClasses and Components vs. ComponentClasses
90 lines
1.9 KiB
Lua
90 lines
1.9 KiB
Lua
--- Used to iterate over Entities with a specific Components
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-- A Pool contain a any amount of Entities.
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-- @classmod Pool
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local PATH = (...):gsub('%.[^%.]+$', '')
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local List = require(PATH..".list")
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local Pool = {}
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Pool.__mt = {
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__index = Pool,
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}
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--- Creates a new Pool
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-- @string name Name for the Pool.
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-- @tparam table filter Table containing the required BaseComponents
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-- @treturn Pool The new Pool
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function Pool.new(name, filter)
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local pool = setmetatable(List(), Pool.__mt)
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pool.__name = name
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pool.__filter = filter
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pool.__isPool = true
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return pool
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end
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--- Checks if an Entity is eligible for the Pool.
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-- @tparam Entity e Entity to check
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-- @treturn boolean
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function Pool:__eligible(e)
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for _, component in ipairs(self.__filter) do
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if not e[component] then
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return false
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end
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end
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return true
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end
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-- Internal: Adds an Entity to the Pool.
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-- @param e Entity to add
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-- @treturn Pool self
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function Pool:__add(e)
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List.__add(self, e)
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self:onEntityAdded(e)
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return self
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end
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-- Internal: Removed an Entity from the Pool.
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-- @param e Entity to remove
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-- @treturn Pool self
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function Pool:__remove(e)
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List.__remove(self, e)
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self:onEntityRemoved(e)
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return self
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end
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--- Gets the name of the Pool
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-- @treturn string
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function Pool:getName()
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return self.__name
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end
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--- Gets the filter of the Pool.
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-- Warning: Do not modify this filter.
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-- @return Filter of the Pool.
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function Pool:getFilter()
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return self.__filter
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end
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--- Callback for when an Entity is added to the Pool.
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-- @tparam Entity e Entity that was added.
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function Pool:onEntityAdded(e) -- luacheck: ignore
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end
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-- Callback for when an Entity is removed from the Pool.
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-- @tparam Entity e Entity that was removed.
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function Pool:onEntityRemoved(e) -- luacheck: ignore
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end
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return setmetatable(Pool, {
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__index = List,
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__call = function(_, ...)
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return Pool.new(...)
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end,
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})
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