Implement Go 1.23 iterators for queries and components (#142)

.github/workflows/test.yaml

@@ -19,7 +19,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v3
         with:
-          go-version: 1.18.x
+          go-version: 1.23.x
 
       - name: Check out code
         uses: actions/checkout@v3

README.md

@@ -15,6 +15,7 @@ It aims to be a feature rich and high-performance [ECS](https://en.wikipedia.org
 - [Getting Started](#getting-started)
   - [Worlds](#worlds)
   - [Queries](#queries)
+- [Ordered Queries](#ordered-queries)
   - [Tags](#tags)
   - [Systems (Experimental)](#systems-experimental)
   - [Debug](#debug)
@@ -127,7 +128,7 @@ if SomeLogic.IsDead(world, someEntity) {
 }
 ```
 
-Entities can be retrieved using the `First` and `Each` methods of Components as follows:
+Entities can be retrieved using the `First` and `Iter` methods of Components as follows:
 
 ```go
 // GameState Component
@@ -154,10 +155,10 @@ if entry, ok := GameState.First(world); ok {
 }
 
 // Query all Bullet entities
-Bullet.Each(world, func(entry *donburi.Entry) {
+for entry := range Bullet.Iter(world) {
   bullet := Bullet.Get(entry)
   // .. do stuff with the bullet entity
-})
+}
 ```
 
 ### Queries
@@ -169,14 +170,14 @@ Queries allow for high performance and expressive iteration through the entities
 query := donburi.NewQuery(filter.Contains(Position, Velocity))
 
 // Iterate through the entities found in the world
-query.Each(world, func(entry *donburi.Entry) {
+for entry := range query.Iter(world) {
   // An entry is an accessor to entity and its components.
   position := Position.Get(entry)
   velocity := Velocity.Get(entry)
 
   position.X += velocity.X
   position.Y += velocity.Y
-})
+}
 ```
 
 There are other types of filters such as `And`, `Or`, `Exact` and `Not`. Filters can be combined wth to find the target entities.
@@ -208,12 +209,11 @@ query := donburi.NewQuery(
 )
 
 // In our query we can check if the entity has some of the optional components before attempting to retrieve them
-query.Each(world, func(entry *donburi.Entry) {
+for entry := range query.Iter(world) {
   // We'll always be able to access Position and Size
   position := Position.Get(entry)
   size := Size.Get(entry)
 
-
   if entry.HasComponent(Sprite) {
     sprite := Sprite.Get(entry)
     // .. do sprite things
@@ -228,8 +228,7 @@ query.Each(world, func(entry *donburi.Entry) {
     shape := Shape.Get(entry)
     // .. do shape things
   }
-
-})
+}
 ```
 
 ## Ordered Queries
@@ -247,9 +246,9 @@ Here we assume the `spatial.TransformComponent` implements `Order()`.
 q := donburi.NewOrderedQuery[spatial.Transform](
 filter.Contains(sprite.Component, spatial.TransformComponent))
 
-q.EachOrdered(w, spatial.TransformComponent, func(entry *donburi.Entry) {
-	// This will be iterated according to the spatial.TransformComponent's Order() function.
-})
+for entry := range q.IterOrdered(w) {
+  // This will be iterated according to the spatial.TransformComponent's Order() function.
+}
 ```
 
 ### Tags
@@ -271,7 +270,7 @@ var EnemyTag = donburi.NewTag("Enemy")
 world.CreateMany(100, EnemyTag, Position, Velocity)
 
 // Search entities with EnemyTag
-EnemyTag.Each(world, func(entry *donburi.Entry) {
+for entry := range EnemyTag.Iter(world) {
   // Perform some operation on the Entities with the EnemyTag component.
 }
 ```

component.go

@@ -2,6 +2,7 @@ package donburi
 
 import (
 	"fmt"
+	"iter"
 	"reflect"
 	"unsafe"
 
@@ -59,6 +60,11 @@ func (c *ComponentType[T]) Each(w World, callback func(*Entry)) {
 	c.query.Each(w, callback)
 }
 
+// Iter returns an iterator for the entities that have the component.
+func (c *ComponentType[T]) Iter(w World) iter.Seq[*Entry] {
+	return c.query.Iter(w)
+}
+
 // deprecated: use Each instead
 func (c *ComponentType[T]) EachEntity(w World, callback func(*Entry)) {
 	c.Each(w, callback)

examples/bunnymark/go.mod

@@ -1,6 +1,8 @@
 module github.com/yohamta/donburi/examples/bunnymark
 
-go 1.21
+go 1.23
+
+toolchain go1.23.0
 
 replace github.com/yohamta/donburi => ../../
 
@@ -15,7 +17,6 @@ require (
 	github.com/StackExchange/wmi v1.2.1 // indirect
 	github.com/ebitengine/purego v0.6.0 // indirect
 	github.com/ghodss/yaml v1.0.0 // indirect
-	github.com/go-gl/glfw/v3.3/glfw v0.0.0-20221017161538-93cebf72946b // indirect
 	github.com/go-ole/go-ole v1.2.6 // indirect
 	github.com/jaypipes/pcidb v1.0.0 // indirect
 	github.com/jezek/xgb v1.1.0 // indirect

examples/bunnymark/go.sum

@@ -2,21 +2,15 @@ github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym
 github.com/StackExchange/wmi v1.2.1 h1:VIkavFPXSjcnS+O8yTq7NI32k0R5Aj+v39y29VYDOSA=
 github.com/StackExchange/wmi v1.2.1/go.mod h1:rcmrprowKIVzvc+NUiLncP2uuArMWLCbu9SBzvHz7e8=
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
-github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
-github.com/ebitengine/purego v0.3.0 h1:BDv9pD98k6AuGNQf3IF41dDppGBOe0F4AofvhFtBXF4=
-github.com/ebitengine/purego v0.3.0/go.mod h1:iIjxzd6CiRiOG0UyXP+V1+jWqUXVjPKLAI0mRfJZTmQ=
 github.com/ebitengine/purego v0.6.0 h1:Yo9uBc1x+ETQbfEaf6wcBsjrQfCEnh/gaGUg7lguEJY=
 github.com/ebitengine/purego v0.6.0/go.mod h1:ah1In8AOtksoNK6yk5z1HTJeUkC1Ez4Wk2idgGslMwQ=
 github.com/ghodss/yaml v1.0.0 h1:wQHKEahhL6wmXdzwWG11gIVCkOv05bNOh+Rxn0yngAk=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
-github.com/go-gl/glfw/v3.3/glfw v0.0.0-20221017161538-93cebf72946b h1:GgabKamyOYguHqHjSkDACcgoPIz3w0Dis/zJ1wyHHHU=
-github.com/go-gl/glfw/v3.3/glfw v0.0.0-20221017161538-93cebf72946b/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
 github.com/go-ole/go-ole v1.2.5/go.mod h1:pprOEPIfldk/42T2oK7lQ4v4JSDwmV0As9GaiUsvbm0=
 github.com/go-ole/go-ole v1.2.6 h1:/Fpf6oFPoeFik9ty7siob0G6Ke8QvQEuVcuChpwXzpY=
 github.com/go-ole/go-ole v1.2.6/go.mod h1:pprOEPIfldk/42T2oK7lQ4v4JSDwmV0As9GaiUsvbm0=
-github.com/hajimehoshi/bitmapfont/v2 v2.2.3 h1:jmq/TMNj352V062Tr5e3hAoipkoxCbY1JWTzor0zNps=
-github.com/hajimehoshi/ebiten/v2 v2.5.3 h1:jizHI6ig5YnNP+wyERJvhDabz4lkhJn06bhIgHWJwUo=
-github.com/hajimehoshi/ebiten/v2 v2.5.3/go.mod h1:mnHSOVysTr/nUZrN1lBTRqhK4NG+T9NR3JsJP2rCppk=
+github.com/hajimehoshi/bitmapfont/v3 v3.0.0 h1:r2+6gYK38nfztS/et50gHAswb9hXgxXECYgE8Nczmi4=
+github.com/hajimehoshi/bitmapfont/v3 v3.0.0/go.mod h1:+CxxG+uMmgU4mI2poq944i3uZ6UYFfAkj9V6WqmuvZA=
 github.com/hajimehoshi/ebiten/v2 v2.6.6 h1:E5X87Or4VwKZIKjeC9+Vr4ComhZAz9h839myF4Q21kc=
 github.com/hajimehoshi/ebiten/v2 v2.6.6/go.mod h1:gKgQI26zfoSb6j5QbrEz2L6nuHMbAYwrsXa5qsGrQKo=
 github.com/jaypipes/ghw v0.10.0 h1:UHu9UX08Py315iPojADFPOkmjTsNzHj4g4adsNKKteY=
@@ -27,28 +21,23 @@ github.com/jessevdk/go-flags v1.4.0/go.mod h1:4FA24M0QyGHXBuZZK/XkWh8h0e1EYbRYJS
 github.com/jezek/xgb v1.1.0 h1:wnpxJzP1+rkbGclEkmwpVFQWpuE2PUGNUzP8SbfFobk=
 github.com/jezek/xgb v1.1.0/go.mod h1:nrhwO0FX/enq75I7Y7G8iN1ubpSGZEiA3v9e9GyRFlk=
 github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
+github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
 github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
 github.com/mitchellh/go-homedir v1.1.0 h1:lukF9ziXFxDFPkA1vsr5zpc1XuPDn/wFntq5mG+4E0Y=
 github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
-github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
-github.com/stretchr/testify v1.7.1 h1:5TQK59W5E3v0r2duFAb7P95B6hEeOyEnHRa8MjYSMTY=
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/exp v0.0.0-20190731235908-ec7cb31e5a56 h1:estk1glOnSVeJ9tdEZZc5mAMDZk5lNJNyJ6DvrBkTEU=
 golang.org/x/exp v0.0.0-20190731235908-ec7cb31e5a56/go.mod h1:JhuoJpWY28nO4Vef9tZUw9qufEGTyX1+7lmHxV5q5G4=
 golang.org/x/image v0.0.0-20190227222117-0694c2d4d067/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
-golang.org/x/image v0.7.0 h1:gzS29xtG1J5ybQlv0PuyfE3nmc6R4qB73m6LUUmvFuw=
-golang.org/x/image v0.7.0/go.mod h1:nd/q4ef1AKKYl/4kft7g+6UyGbdiqWqTP1ZAbRoV7Rg=
 golang.org/x/image v0.12.0 h1:w13vZbU4o5rKOFFR8y7M+c4A5jXDC0uXTdHYRP8X2DQ=
 golang.org/x/image v0.12.0/go.mod h1:Lu90jvHG7GfemOIcldsh9A2hS01ocl6oNO7ype5mEnk=
 golang.org/x/mobile v0.0.0-20190312151609-d3739f865fa6/go.mod h1:z+o9i4GpDbdi3rU15maQ/Ox0txvL9dWGYEHz965HBQE=
-golang.org/x/mobile v0.0.0-20230301163155-e0f57694e12c h1:Gk61ECugwEHL6IiyyNLXNzmu8XslmRP2dS0xjIYhbb4=
-golang.org/x/mobile v0.0.0-20230301163155-e0f57694e12c/go.mod h1:aAjjkJNdrh3PMckS4B10TGS2nag27cbKR1y2BpUxsiY=
 golang.org/x/mobile v0.0.0-20230922142353-e2f452493d57 h1:Q6NT8ckDYNcwmi/bmxe+XbiDMXqMRW1xFBtJ+bIpie4=
 golang.org/x/mobile v0.0.0-20230922142353-e2f452493d57/go.mod h1:wEyOn6VvNW7tcf+bW/wBz1sehi2s2BZ4TimyR7qZen4=
 golang.org/x/mod v0.1.0/go.mod h1:0QHyrYULN0/3qlju5TqG8bIK38QM8yzMo5ekMj3DlcY=
@@ -62,7 +51,6 @@ golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug
 golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.1.0 h1:wsuoTGHzEhffawBOhz5CYhcrV4IdKZbEyZjBMuTp12o=
 golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.3.0 h1:ftCYgMx6zT/asHUrPw8BLLscYtGznsLAnjq5RH9P66E=
 golang.org/x/sync v0.3.0/go.mod h1:FU7BRWz2tNW+3quACPkgCx/L+uEAv1htQ0V83Z9Rj+Y=
@@ -74,8 +62,6 @@ golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBc
 golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.6.0 h1:MVltZSvRTcU2ljQOhs94SXPftV6DCNnZViHeQps87pQ=
-golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.12.0 h1:CM0HF96J0hcLAwsHPJZjfdNzs0gftsLfgKt57wWHJ0o=
 golang.org/x/sys v0.12.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
@@ -85,8 +71,7 @@ golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
-golang.org/x/text v0.9.0 h1:2sjJmO8cDvYveuX97RDLsxlyUxLl+GHoLxBiRdHllBE=
-golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
+golang.org/x/text v0.13.0 h1:ablQoSUd0tRdKxZewP80B+BaqeKJuVhuRxj/dkrun3k=
 golang.org/x/text v0.13.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190312151545-0bb0c0a6e846/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
@@ -96,9 +81,9 @@ golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
+gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v1 v1.0.0-20140924161607-9f9df34309c0/go.mod h1:WDnlLJ4WF5VGsH/HVa3CI79GS0ol3YnhVnKP89i0kNg=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
-gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
 howett.net/plist v1.0.0 h1:7CrbWYbPPO/PyNy38b2EB/+gYbjCe2DXBxgtOOZbSQM=
 howett.net/plist v1.0.0/go.mod h1:lqaXoTrLY4hg8tnEzNru53gicrbv7rrk+2xJA/7hw9g=

examples/bunnymark/system/bounce.go

@@ -25,7 +25,7 @@ func NewBounce(bounds *image.Rectangle) *Bounce {
 }
 
 func (b *Bounce) Update(w donburi.World) {
-	b.query.Each(w, func(entry *donburi.Entry) {
+	for entry := range b.query.Iter(w) {
 		position := component.Position.Get(entry)
 		velocity := component.Velocity.Get(entry)
 		sprite := component.Sprite.Get(entry)
@@ -52,5 +52,5 @@ func (b *Bounce) Update(w donburi.World) {
 			velocity.Y = 0
 			position.Y = 0
 		}
-	})
+	}
 }

examples/bunnymark/system/gravity.go

@@ -17,10 +17,10 @@ func NewGravity() *Gravity {
 }
 
 func (g *Gravity) Update(w donburi.World) {
-	g.query.Each(w, func(entry *donburi.Entry) {
+	for entry := range g.query.Iter(w) {
 		gravity := component.Gravity.Get(entry)
 		velocity := component.Velocity.Get(entry)
 
 		velocity.Y += gravity.Value
-	})
+	}
 }

examples/bunnymark/system/render.go

@@ -22,7 +22,7 @@ func NewRender() *Render {
 }
 
 func (r *Render) Draw(w donburi.World, screen *ebiten.Image) {
-	r.query.Each(w, func(entry *donburi.Entry) {
+	for entry := range r.query.Iter(w) {
 		position := component.Position.Get(entry)
 		hue := component.Hue.Get(entry)
 		sprite := component.Sprite.Get(entry)
@@ -34,5 +34,5 @@ func (r *Render) Draw(w donburi.World, screen *ebiten.Image) {
 			op.ColorM.RotateHue(hue.Value)
 		}
 		screen.DrawImage(sprite.Image, op)
-	})
+	}
 }

examples/bunnymark/system/velocity.go

@@ -17,11 +17,12 @@ func NewVelocity() *Velocity {
 }
 
 func (v *Velocity) Update(w donburi.World) {
-	v.query.Each(w, func(entry *donburi.Entry) {
+	for entry := range v.query.Iter(w) {
+
 		position := component.Position.Get(entry)
 		velocity := component.Velocity.Get(entry)
 
 		position.X += velocity.X
 		position.Y += velocity.Y
-	})
+	}
 }

examples/bunnymark_ecs/go.mod

@@ -1,6 +1,8 @@
 module github.com/yohamta/donburi/examples/bunnymark_ecs
 
-go 1.21
+go 1.23
+
+toolchain go1.23.0
 
 replace github.com/yohamta/donburi => ../../
 

examples/bunnymark_ecs/system/bounce.go

@@ -28,7 +28,7 @@ func NewBounce(bounds *image.Rectangle) *bounce {
 }
 
 func (b *bounce) Update(ecs *ecs.ECS) {
-	b.query.Each(ecs.World, func(entry *donburi.Entry) {
+	for entry := range b.query.Iter(ecs.World) {
 		position := component.Position.Get(entry)
 		velocity := component.Velocity.Get(entry)
 		sprite := component.Sprite.Get(entry)
@@ -55,5 +55,5 @@ func (b *bounce) Update(ecs *ecs.ECS) {
 			velocity.Y = 0
 			position.Y = 0
 		}
-	})
+	}
 }

examples/bunnymark_ecs/system/gravity.go

@@ -20,10 +20,10 @@ var Gravity *gravity = &gravity{
 }
 
 func (g *gravity) Update(ecs *ecs.ECS) {
-	g.query.Each(ecs.World, func(entry *donburi.Entry) {
+	for entry := range g.query.Iter(ecs.World) {
 		gravity := component.Gravity.Get(entry)
 		velocity := component.Velocity.Get(entry)
 
 		velocity.Y += gravity.Value
-	})
+	}
 }

examples/bunnymark_ecs/system/render.go

@@ -31,7 +31,7 @@ var Render = &render{
 
 func (r *render) Draw(ecs *ecs.ECS, screen *ebiten.Image) {
 	if !UsePositionOrdering {
-		r.query.Each(ecs.World, func(entry *donburi.Entry) {
+		for entry := range r.query.Iter(ecs.World) {
 			position := component.Position.Get(entry)
 			hue := component.Hue.Get(entry)
 			sprite := component.Sprite.Get(entry)
@@ -43,9 +43,9 @@ func (r *render) Draw(ecs *ecs.ECS, screen *ebiten.Image) {
 				op.ColorM.RotateHue(hue.Value)
 			}
 			screen.DrawImage(sprite.Image, op)
-		})
+		}
 	} else {
-		r.orderedQuery.EachOrdered(ecs.World, component.Position, func(entry *donburi.Entry) {
+		for entry := range r.orderedQuery.IterOrdered(ecs.World, component.Position) {
 			position := component.Position.Get(entry)
 			hue := component.Hue.Get(entry)
 			sprite := component.Sprite.Get(entry)
@@ -57,6 +57,6 @@ func (r *render) Draw(ecs *ecs.ECS, screen *ebiten.Image) {
 				op.ColorM.RotateHue(hue.Value)
 			}
 			screen.DrawImage(sprite.Image, op)
-		})
+		}
 	}
 }

examples/bunnymark_ecs/system/velocity.go

@@ -20,11 +20,11 @@ var Velocity = &velocity{
 }
 
 func (v *velocity) Update(ecs *ecs.ECS) {
-	v.query.Each(ecs.World, func(entry *donburi.Entry) {
+	for entry := range v.query.Iter(ecs.World) {
 		position := component.Position.Get(entry)
 		velocity := component.Velocity.Get(entry)
 
 		position.X += velocity.X
 		position.Y += velocity.Y
-	})
+	}
 }

examples/platformer/go.mod

@@ -1,6 +1,8 @@
 module github.com/yohamta/donburi/examples/platformer
 
-go 1.21
+go 1.23
+
+toolchain go1.23.0
 
 require (
 	github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0