jecs/.luaurc

@@ -4,7 +4,7 @@
         "testkit": "tools/testkit",
         "mirror": "mirror",
         "tools": "tools",
-        "addons": "addons",
+        "addons": "addons"
     },
     "languageMode": "strict"
 }

jecs/CHANGELOG.md

@@ -23,6 +23,8 @@ The format is based on [Keep a Changelog][kac], and this project adheres to
         -   This should allow a more lenient window for modifying data
     -   Changed `OnRemove` to lazily lookup which archetype the entity will move to
         -   Can now have interior structural changes within `OnRemove` hooks
+    -   Optimized `world:has` for both single component and multiple component presence.
+        -   This comes at the cost that it cannot check the component presence for more than 4 components at a time. If this is important, consider calling to this function multiple times.
 
 ## [0.5.0] - 2024-12-26
 

jecs/addons/observers.luau

@@ -1,20 +1,32 @@
 local jecs = require("@jecs")
-local testkit = require("@testkit")
+
+type Observer<T...> = {
+	callback: (jecs.Entity) -> (),
+	query: jecs.Query<T...>,
+}
+
+export type PatchedWorld = jecs.World & {
+	added: (PatchedWorld, jecs.Id, (e: jecs.Entity, id: jecs.Id, value: any) -> ()) -> (),
+	removed: (PatchedWorld, jecs.Id, (e: jecs.Entity, id: jecs.Id) -> ()) -> (),
+	changed: (PatchedWorld, jecs.Id, (e: jecs.Entity, id: jecs.Id) -> ()) -> (),
+	observer: (PatchedWorld, Observer<any>) -> (),
+	monitor: (PatchedWorld, Observer<any>) -> (),
+}
 
 local function observers_new(world, description)
 	local query = description.query
 	local callback = description.callback
-	local terms = query.filter_with
+	local terms = query.filter_with :: { jecs.Id }
 	if not terms then
 		local ids = query.ids
 		query.filter_with = ids
 		terms = ids
 	end
 
-	local entity_index = world.entity_index
-	local function emplaced(entity)
+	local entity_index = world.entity_index :: any
+	local function emplaced(entity: jecs.Entity)
 		local r = jecs.entity_index_try_get_fast(
-			entity_index, entity)
+			entity_index, entity :: any)
 
 		if not r then
 			return
@@ -33,18 +45,20 @@ local function observers_new(world, description)
  	end
 end
 
-local function world_track(world, ...)
-	local entity_index = world.entity_index
-	local terms = { ... }
-	local q_shim = { filter_with = terms }
+local function monitors_new(world, description)
+	local query = description.query
+	local callback = description.callback
+	local terms = query.filter_with :: { jecs.Id }
+	if not terms then
+		local ids = query.ids
+		query.filter_with = ids
+		terms = ids
+	end
 
-	local n = 0
-	local dense_array = {}
-	local sparse_array = {}
-
-	local function emplaced(entity)
+	local entity_index = world.entity_index :: any
+	local function emplaced(entity: jecs.Entity)
 		local r = jecs.entity_index_try_get_fast(
-			entity_index, entity)
+			entity_index, entity :: any)
 
 		if not r then
 			return
@@ -52,55 +66,39 @@ local function world_track(world, ...)
 
 		local archetype = r.archetype
 
-		if jecs.query_match(q_shim :: any, archetype) then
-			n += 1
-			dense_array[n] = entity
-			sparse_array[entity] = n
+		if jecs.query_match(query, archetype) then
+			callback(entity, jecs.OnAdd)
 		end
 	end
 
-	local function removed(entity)
-		local i = sparse_array[entity]
-		if i ~= n then
-			dense_array[i] = dense_array[n]
+	local function removed(entity: jecs.Entity, component: jecs.Id)
+		local r = jecs.entity_index_try_get_fast(
+			entity_index, entity :: any)
+
+		if not r then
+			return
 		end
 
-		dense_array[n] = nil
+		local archetype = r.archetype
+
+		if jecs.query_match(query, archetype) then
+			callback(entity, jecs.OnRemove)
+		end
 	end
 
 	for _, term in terms do
 		world:added(term, emplaced)
-		world:changed(term, emplaced)
+		world:removed(term, removed)
  	end
-
-	local function iter()
-		local i = n
-		return function()
-			local row = i
-			if row == 0 then
-				return nil
-			end
-			i -= 1
-			return dense_array[row] :: any
-		end
-	end
-
-	local it = {
-		__iter = iter,
-		without = function(self, ...)
-			q_shim.filter_without = { ... }
-			return self
-		end
-	}
-	return setmetatable(it, it)
 end
 
-local function observers_add(world)
+local function observers_add(world: jecs.World & { [string]: any }): PatchedWorld
 	local signals = {
 		added = {},
 		emplaced = {},
 		removed = {}
 	}
+
 	world.added = function(_, component, fn)
 		local listeners = signals.added[component]
 		if not listeners then
@@ -109,7 +107,7 @@ local function observers_add(world)
 			local idr = jecs.id_record_ensure(world, component)
 			idr.hooks.on_add = function(entity)
 				for _, listener in listeners do
-					listener(entity)
+					listener(entity, component)
 				end
 			end
 		end
@@ -124,7 +122,7 @@ local function observers_add(world)
 			local idr = jecs.id_record_ensure(world, component)
 			idr.hooks.on_change = function(entity, value)
 				for _, listener in listeners do
-					listener(entity, value)
+					listener(entity, component, value)
 				end
 			end
 		end
@@ -139,7 +137,7 @@ local function observers_add(world)
 			local idr = jecs.id_record_ensure(world, component)
 			idr.hooks.on_remove = function(entity)
 				for _, listener in listeners do
-					listener(entity)
+					listener(entity, component)
 				end
 			end
 		end
@@ -148,9 +146,10 @@ local function observers_add(world)
 
 	world.signals = signals
 
-	world.track = world_track
-
 	world.observer = observers_new
+
+	world.monitor = monitors_new
+
 	return world
 end
 

jecs/build.txt

@@ -1,2 +1,2 @@
 modified = ["addons/observers.luau", ".luaurc", "CHANGELOG.md", "jecs.luau"]
-version = "0.5.5-nightly.20250412T181729Z"
+version = "0.5.5-nightly.20250413T001101Z"

jecs/jecs.luau

@@ -466,7 +466,9 @@ local function world_has_one_inline(world: ecs_world_t, entity: i53, id: i53): b
 	return records[id] ~= nil
 end
 
-local function world_has(world: ecs_world_t, entity: i53, ...: i53): boolean
+local function world_has(world: ecs_world_t, entity: i53,
+	a: i53, b: i53?, c: i53?, d: i53?, e: i53?): boolean
+
 	local record = entity_index_try_get_fast(world.entity_index, entity)
 	if not record then
 		return false
@@ -479,13 +481,11 @@ local function world_has(world: ecs_world_t, entity: i53, ...: i53): boolean
 
 	local records = archetype.records
 
-	for i = 1, select("#", ...) do
-		if not records[select(i, ...)] then
-			return false
-		end
-	end
-
-	return true
+	return records[a] ~= nil and
+		(b == nil or records[b] ~= nil) and
+		(c == nil or records[c] ~= nil) and
+		(d == nil or records[d] ~= nil) and
+		(e == nil or error("args exceeded"))
 end
 
 local function world_target(world: ecs_world_t, entity: i53, relation: i24, index: number?): i24?
@@ -2420,7 +2420,10 @@ export type World = {
 		& <A, B, C, D>(self: World, id: Entity, Id<A>, Id<B>, Id<C>, Id<D>) -> (A?, B?, C?, D?),
 
 	--- Returns whether the entity has the ID.
-	has: (self: World, entity: Entity, ...Id) -> boolean,
+	has: (<A>(World, Entity, A) -> boolean)
+		& (<A, B>(World, Entity, A, B) -> boolean)
+		& (<A, B, C>(World, Entity, A, B, C) -> boolean)
+		& <A, B, C, D>(World, Entity, A, B, C, D) -> boolean,
 
 	--- Get parent (target of ChildOf relationship) for entity. If there is no ChildOf relationship pair, it will return nil.
 	parent:(self: World, entity: Entity) -> Entity,
@@ -2487,9 +2490,9 @@ return {
 
 	ECS_ID_DELETE = ECS_ID_DELETE,
 
-	IS_PAIR = ECS_IS_PAIR,
-	pair_first = ecs_pair_first,
-	pair_second = ecs_pair_second,
+	IS_PAIR = (ECS_IS_PAIR :: any) :: <P, O>(pair: Pair<P, O>) -> boolean,
+	pair_first = (ecs_pair_first :: any) :: <P, O>(world: World, pair: Pair<P, O>) -> Id<P>,
+	pair_second = (ecs_pair_second :: any) :: <P, O>(world: World, pair: Pair<P, O>) -> Id<O>,
 	entity_index_get_alive = entity_index_get_alive,
 
 	archetype_append_to_records = archetype_append_to_records,

jecs/pesde-rbx.toml

@@ -3,7 +3,7 @@ includes = ["init.luau", "pesde.toml", "README.md", "CHANGELOG.md", "LICENSE", "
 license = "MIT"
 name = "marked/jecs_nightly"
 repository = "https://git.devmarked.win/marked/jecs-nightly"
-version = "0.5.5-nightly.20250412T181729Z"
+version = "0.5.5-nightly.20250413T001101Z"
 
 [indices]
 default = "https://github.com/pesde-pkg/index"

jecs/pesde.toml

@@ -3,7 +3,7 @@ includes = ["init.luau", "pesde.toml", "README.md", "CHANGELOG.md", "LICENSE", "
 license = "MIT"
 name = "marked/jecs_nightly"
 repository = "https://git.devmarked.win/marked/jecs-nightly"
-version = "0.5.5-nightly.20250412T181729Z"
+version = "0.5.5-nightly.20250413T001101Z"
 
 [indices]
 default = "https://github.com/pesde-pkg/index"

jecs/test.txt

@@ -1,2 +1,2 @@
 passed = true
-timestamp = "20250412T181730Z"
+timestamp = "20250413T001103Z"

jecs/test_fulllog.txt

@@ -1,77 +1,39 @@
-*created e271v0
-*created e272v0
-*created e273v0
-*created e274v0
-*created e275v0
-*created e276v0
-*created e277v0
-*created e278v0
-*created e279v0
-*created e280v0
-|-alive--|
-| e271v0 |
-|--------|
-| e272v0 |
-|--------|
-| e273v0 |
-|--------|
-| e274v0 |
-|--------|
-| e275v0 |
-|--------|
-| e276v0 |
-|--------|
-| e277v0 |
-|--------|
-| e278v0 |
-|--------|
-| e279v0 |
-|--------|
-| e280v0 |
-|--------|
-
-
-*deleted e270v0
-*deleted e271v0
-*deleted e272v0
-*deleted e273v0
-*deleted e274v0
-*deleted e275v0
-*deleted e274v1
-*deleted e273v1
-*deleted e272v1
-*deleted e271v1
-*deleted e270v1
 ----idempotent
 1_2
-1_2
-7.1 us   1 kB│ delete children of entity
-9.2 us   1 kB│ remove friends of entity
-346 ns   0  B│ simple deletion of entity
-the great reset
+7.4 us   2 kB│ delete children of entity
+9.5 us   1 kB│ remove friends of entity
+352 ns   0  B│ simple deletion of entity
+world:add()
+PASS│ idempotent
+PASS│ archetype move
+
+world:children()
 PASS│ 
 
-#repro3
-PASS│ should add the correct ModelBase for parts
-PASS│ should add the correct ModelBase for parts
-PASS│ 
+world:clear()
+PASS│ should remove its components
+PASS│ remove cleared ID from entities
 
-#adding a recycled target
-PASS│ 
+world:component()
+PASS│ only components should have EcsComponent trait
+PASS│ tag
 
-#repro2
+world:contains()
 PASS│ 
+PASS│ should not exist after delete
 
-another
-PASS│ 
+world:delete()
+PASS│ invoke OnRemove hooks
+PASS│ delete recycled entity id used as component
+PASS│ bug: Empty entity does not respect cleanup policy
+PASS│ should allow deleting components
+PASS│ delete entities using another Entity as component with Delete cleanup action
+PASS│ delete children
+PASS│ remove deleted ID from entities
+PASS│ fast delete
+PASS│ cycle
 
-#repro
-PASS│ 
-
-archetype
-PASS│ 
-
-world:cleanup()
+world:each()
 PASS│ 
 
 world:entity()
@@ -81,16 +43,9 @@
 PASS│ Recycling
 PASS│ Recycling max generation
 
-world:set()
-PASS│ archetype move
-PASS│ pairs
-
-world:remove()
-PASS│ should allow remove a component that doesn't exist on entity
-
-world:add()
-PASS│ idempotent
-PASS│ archetype move
+world:has()
+PASS│ should find Tag on entity
+PASS│ should return false when missing one tag
 
 world:query()
 PASS│ cached
@@ -110,49 +65,32 @@
 PASS│ should error when setting invalid pair
 PASS│ should find target for ChildOf
 PASS│ despawning while iterating
-NONE│ iterator invalidation
-SKIP│ adding
-PASS│ spawning
 PASS│ should not find any entities
-PASS│ without
+PASS│ world:query():without()
 
-world:each
-PASS│ 
+world:remove()
+PASS│ should allow remove a component that doesn't exist on entity
 
-world:children
-PASS│ 
-
-world:clear()
-PASS│ should remove its components
-PASS│ remove cleared ID from entities
-
-world:has()
-PASS│ should find Tag on entity
-PASS│ should return false when missing one tag
-
-world:component()
-PASS│ only components should have EcsComponent trait
-PASS│ tag
-
-world:delete
-PASS│ invoke OnRemove hooks
-PASS│ delete recycled entity id used as component
-PASS│ bug: Empty entity does not respect cleanup policy
-PASS│ should allow deleting components
-PASS│ delete entities using another Entity as component with Delete cleanup action
-PASS│ delete children
-PASS│ remove deleted ID from entities
-PASS│ fast delete
-PASS│ cycle
+world:set()
+PASS│ archetype move
+PASS│ pairs
 
 world:target
 PASS│ nth index
 PASS│ infer index when unspecified
 PASS│ loop until no target
 
-world:contains
+#adding a recycled target
+PASS│ 
+
+#repro2
+PASS│ 
+
+another
+PASS│ 
+
+#repro
 PASS│ 
-PASS│ should not exist after delete
 
 Hooks
 PASS│ OnAdd
@@ -177,5 +115,5 @@
 PASS│ #2
 PASS│ #3
 
-77/77 test cases passed in 29.411 ms.
+68/68 test cases passed in 29.621 ms.
 0 fails

jecs/wally.toml

@@ -5,4 +5,4 @@ license = "MIT"
 name = "mark-marks/jecs-nightly"
 realm = "shared"
 registry = "https://github.com/UpliftGames/wally-index"
-version = "0.5.5-nightly.20250412T181729Z"
+version = "0.5.5-nightly.20250413T001101Z"