Separate ids and add tests (#11)

benches/query.bench.lua

@@ -30,14 +30,14 @@ local B6 = ecr.component()
 local B7 = ecr.component()
 local B8 = ecr.component()
 
-local D1 = ecs:entity()
-local D2 = ecs:entity()
-local D3 = ecs:entity()
-local D4 = ecs:entity()
-local D5 = ecs:entity()
-local D6 = ecs:entity()
-local D7 = ecs:entity()
-local D8 = ecs:entity()
+local D1 = ecs:component()
+local D2 = ecs:component()
+local D3 = ecs:component()
+local D4 = ecs:component()
+local D5 = ecs:component()
+local D6 = ecs:component()
+local D7 = ecs:component()
+local D8 = ecs:component()
 
 
 local E1 = mcs:entity()

lib/init.lua

@@ -159,7 +159,8 @@ function World.new()
 		archetypes = {},
 		archetypeIndex = {},
         ROOT_ARCHETYPE = (nil :: any) :: Archetype,
-        nextId = 0,
+        nextEntityId = 0,
+		nextComponentId = 0,
         nextArchetypeId = 0,
 		hooks = {
 			[ON_ADD] = {}
@@ -521,16 +522,17 @@ function World.query(world: World, ...: i53): any
 end
 
 function World.component(world: World) 
-	local id = world.nextId + 1
-	if id > HI_COMPONENT_ID then 
+	local componentId = world.nextComponentId + 1	
+	if componentId > HI_COMPONENT_ID then 
 		error("Too many components")	
 	end
-	return id
+	world.nextComponentId = componentId
+	return componentId
 end
 
 function World.entity(world: World)
-    world.nextId += 1
-	return world.nextId + REST
+	world.nextEntityId += 1
+	return world.nextEntityId + REST
 end
 
 function World.observer(world: World, ...)

lib/init.spec.lua

@@ -157,6 +157,13 @@ return function()
 			expect(withoutCount).to.equal(1)
 		end)
 
+		it("should allow calling world:entity before world:component", function() 
+			for _ = 1, 256 do 
+				world:entity()
+			end	
+			expect(world:component()).to.be.ok()
+		end)
+
 		it("should skip iteration", function() 
 			local Position, Velocity = world:entity(), world:entity()
 			local e = world:entity()