mirror of
https://github.com/Ukendio/jecs.git
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Less memory footprint
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Ukendio
parent
8bea43a9fc
commit
85a970e9ff
5 changed files with 1089 additions and 579 deletions
3
.luaurc
3
.luaurc
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@ -1,6 +1,7 @@
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{
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"aliases": {
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"jecs": "src",
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"testkit": "testkit"
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"testkit": "testkit",
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"mirror": "mirror"
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}
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}
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@ -12,7 +12,7 @@
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"ReplicatedStorage": {
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"$className": "ReplicatedStorage",
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"Lib": {
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"$path": "lib"
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"$path": "src"
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},
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"rgb": {
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"$path": "rgb.luau"
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1080
mirror/init.luau
1080
mirror/init.luau
File diff suppressed because it is too large
Load diff
135
src/init.luau
135
src/init.luau
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@ -688,24 +688,22 @@ local function replaceMult(row, columns, ...)
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end
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end
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local function preparedQuery(compatibleArchetypes: { Archetype },
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components: { i53? }, indices: { { number } })
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local query: (World, ...i53) -> Query
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do
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local indices: { { number } }
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local compatibleArchetypes: { Archetype }
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local length
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local components: { number }
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local queryLength: number
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local lastArchetype: number
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local archetype: Archetype
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local queryLength = #components
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local queryOutput: { any }
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local lastArchetype = 1
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local archetype: Archetype = compatibleArchetypes[lastArchetype]
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local entities: {}
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local i: number
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if not archetype then
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return EmptyQuery
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end
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local queryOutput = {}
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local entities = archetype.entities
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local i = #entities
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local function queryNext(): ...any
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local function query_next()
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local entityId = entities[i]
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while entityId == nil do
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lastArchetype += 1
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@ -735,35 +733,19 @@ local function preparedQuery(compatibleArchetypes: { Archetype },
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elseif queryLength == 4 then
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return entityId, columns[tr[1]][row], columns[tr[2]][row], columns[tr[3]][row], columns[tr[4]][row]
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elseif queryLength == 5 then
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return entityId,
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columns[tr[1]][row],
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columns[tr[2]][row],
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columns[tr[3]][row],
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columns[tr[4]][row],
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return entityId,columns[tr[1]][row], columns[tr[2]][row], columns[tr[3]][row], columns[tr[4]][row],
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columns[tr[5]][row]
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elseif queryLength == 6 then
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return entityId,
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columns[tr[1]][row],
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columns[tr[2]][row],
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columns[tr[3]][row],
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columns[tr[4]][row],
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return entityId, columns[tr[1]][row], columns[tr[2]][row], columns[tr[3]][row], columns[tr[4]][row],
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columns[tr[5]][row],
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columns[tr[6]][row]
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elseif queryLength == 7 then
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return entityId,
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columns[tr[1]][row],
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columns[tr[2]][row],
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columns[tr[3]][row],
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columns[tr[4]][row],
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return entityId, columns[tr[1]][row], columns[tr[2]][row], columns[tr[3]][row], columns[tr[4]][row],
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columns[tr[5]][row],
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columns[tr[6]][row],
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columns[tr[7]][row]
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elseif queryLength == 8 then
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return entityId,
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columns[tr[1]][row],
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columns[tr[2]][row],
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columns[tr[3]][row],
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columns[tr[4]][row],
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return entityId, columns[tr[1]][row], columns[tr[2]][row], columns[tr[3]][row], columns[tr[4]][row],
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columns[tr[5]][row],
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columns[tr[6]][row],
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columns[tr[7]][row],
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@ -777,7 +759,7 @@ local function preparedQuery(compatibleArchetypes: { Archetype },
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return entityId, unpack(queryOutput, 1, queryLength)
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end
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local function without(self, ...): Query
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local function query_without(self, ...): Query
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local withoutComponents = { ... }
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for i = #compatibleArchetypes, 1, -1 do
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local archetype = compatibleArchetypes[i]
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@ -803,16 +785,16 @@ local function preparedQuery(compatibleArchetypes: { Archetype },
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return self
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end
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local function iter()
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local function query_iter()
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lastArchetype = 1
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archetype = compatibleArchetypes[1]
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entities = archetype.entities
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i = #entities
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return queryNext
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return query_next
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end
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local function replace(_, fn: any)
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local function query_replace(_, fn: any)
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for i, archetype in compatibleArchetypes do
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local tr = indices[i]
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local columns = archetype.columns
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@ -852,29 +834,18 @@ local function preparedQuery(compatibleArchetypes: { Archetype },
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end
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end
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local it = {
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__iter = iter,
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next = queryNext,
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without = without,
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replace = replace
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}
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return setmetatable(it, it) :: any
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end
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local function query(world: World, ...: number): Query
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function query(world: World, ...: number): Query
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-- breaking?
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if (...) == nil then
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error("Missing components")
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end
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local indices: { { number } } = {}
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local compatibleArchetypes: { Archetype } = {}
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local length = 0
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indices = {}
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compatibleArchetypes = {}
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length = 0
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components = { ... }
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local components: { number } = { ... }
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local archetypes: { Archetype } = world.archetypes :: any
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local firstArchetypeMap: ArchetypeMap
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local componentIndex = world.componentIndex
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@ -890,8 +861,8 @@ local function query(world: World, ...: number): Query
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end
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for id in firstArchetypeMap.cache do
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local archetype = archetypes[id]
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local archetypeRecords = archetype.records
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local compatibleArchetype = archetypes[id]
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local archetypeRecords = compatibleArchetype.records
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local records: { number } = {}
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local skip = false
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@ -911,11 +882,32 @@ local function query(world: World, ...: number): Query
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end
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length += 1
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compatibleArchetypes[length] = archetype
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compatibleArchetypes[length] = compatibleArchetype
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indices[length] = records
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end
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return preparedQuery(compatibleArchetypes, components, indices)
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lastArchetype = 1
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archetype = compatibleArchetypes[lastArchetype]
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if not archetype then
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return EmptyQuery
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end
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queryOutput = {}
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queryLength = #components
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entities = archetype.entities
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i = #entities
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local it = {
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__iter = query_iter,
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next = query_next,
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without = query_without,
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replace = query_replace
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}
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return setmetatable(it, it) :: any
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end
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end
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type WorldIterator = (() -> (i53, { [unknown]: unknown? })) & (() -> ()) & (() -> i53)
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@ -1055,6 +1047,18 @@ export type WorldShim = typeof(setmetatable(
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local World = {}
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World.__index = World
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World.entity = entity
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World.query = query
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World.remove = remove
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World.clear = clear
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World.delete = delete
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World.component = newComponent
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World.add = add
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World.set = set
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World.get = get
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World.target = target
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World.parent = parent
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function World.new()
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local self = setmetatable({
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archetypeIndex = {} :: { [string]: Archetype },
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@ -1072,6 +1076,7 @@ function World.new()
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nextEntityId = 0,
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ROOT_ARCHETYPE = (nil :: any) :: Archetype,
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}, World)
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self.ROOT_ARCHETYPE = archetypeOf(self, {})
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-- Initialize built-in components
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@ -1080,18 +1085,6 @@ function World.new()
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return self
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end
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World.entity = entity
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World.query = query
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World.remove = remove
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World.clear = clear
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World.delete = delete
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World.component = newComponent
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World.add = add
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World.set = set
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World.get = get
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World.target = target
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World.parent = parent
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return {
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World = World :: { new: () -> WorldShim } ,
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56
test/leaky.luau
Normal file
56
test/leaky.luau
Normal file
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@ -0,0 +1,56 @@
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local function calculateAverage(times)
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local sum = 0
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for _, time in ipairs(times) do
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sum = sum + time
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end
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return sum / #times
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end
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-- Main logic to time the test function
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local CASES = {
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jecs = function(world, ...)
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for i = 1, 100 do
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local q = world:query(...)
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for _ in q do end
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end
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end,
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mirror = function(world, ...)
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for i = 1, 100 do
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local q = world:query(...)
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for _ in q do end
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end
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end
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}
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for name, fn in CASES do
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local times = {}
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local allocations = {}
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local ecs = require("@"..name)
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local world = ecs.World.new()
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local A, B, C = world:component(), world:component(), world:component()
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for i = 1, 5 do
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local e = world:entity()
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world:add(e, A)
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world:add(e, B)
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world:add(e, C)
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end
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collectgarbage("collect")
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local count = collectgarbage("count")
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for i = 1, 50000 do
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local startTime = os.clock()
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fn(world, A, B, C)
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local allocated = collectgarbage("count")
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collectgarbage("collect")
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local endTime = os.clock()
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table.insert(times, endTime - startTime)
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table.insert(allocations, allocated)
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end
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print(name, "gc cycle time", calculateAverage(times))
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print(name, "memory allocated", calculateAverage(allocations))
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end
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