create entity without multi inserts

develop/example.lua

@@ -7,6 +7,12 @@ local fragments = {
     velocity = registry:entity(),
 }
 
+do
+    registry:entity(
+        fragments.position,
+        fragments.velocity)
+end
+
 do
     local entity = registry:entity()
     entity:insert(fragments.position)

develop/untests.lua

@@ -27,6 +27,31 @@ local function describe(name, func, ...)
     collectgarbage('restart')
 end
 
+describe('entity:entity', function()
+    for _ = 1, 500 do
+        local registry = evolved.registry()
+
+        ---@type evolved.entity[]
+        local all_fragments = {}
+        local all_fragment_count = math.random(1, 10)
+        for i = 1, all_fragment_count do all_fragments[i] = registry:entity() end
+
+        for _ = 1, 100 do
+            ---@type evolved.entity[]
+            local insert_fragments = {}
+            local insert_fragment_count = math.random(1, 10)
+            for i = 1, insert_fragment_count do insert_fragments[i] = all_fragments[math.random(1, all_fragment_count)] end
+
+            local e1 = registry:entity()
+            for _, fragment in ipairs(insert_fragments) do e1:insert(fragment) end
+
+            local e2 = registry:entity(unpack(insert_fragments))
+
+            assert(e1.chunk == e2.chunk)
+        end
+    end
+end)
+
 describe('entity:chunk', function()
     for _ = 1, 500 do
         local registry = evolved.registry()

evolved.lua

@@ -276,6 +276,18 @@ end
 ---
 ---
 
+---@param ... evolved.entity
+---@return evolved.chunk
+function evolved_registry_mt:chunk(...)
+    local chunk = self.chunks[1]
+
+    for i = 1, select('#', ...) do
+        chunk = chunk:with(select(i, ...))
+    end
+
+    return chunk
+end
+
 ---@param ... evolved.entity
 ---@return evolved.query
 function evolved_registry_mt:query(...)
@@ -318,8 +330,9 @@ function evolved_registry_mt:query(...)
     return query
 end
 
+---@param ... evolved.entity
 ---@return evolved.entity
-function evolved_registry_mt:entity()
+function evolved_registry_mt:entity(...)
     local id = self.nextid
     self.nextid = self.nextid + 1
 
@@ -333,9 +346,7 @@ function evolved_registry_mt:entity()
     setmetatable(entity, evolved_entity_mt)
     self.entities[#self.entities + 1] = entity
 
-    do
+    self:chunk(...):insert(entity)
-        self.chunks[1]:insert(entity)
-    end
 
     return entity
 end