nope, it's a hopeless mess

.gitignore

@@ -6,4 +6,3 @@ rect*
 *prof
 *lif
 *rle
-svgicons

README.md

@@ -24,7 +24,6 @@ Based on: https://youtu.be/FWSR_7kZuYg?si=ix1dmo76D8AmF25F
 [![golsky-captured.png](https://github.com/TLINDEN/golsky/blob/main/.github/assets/screenshots/256_golsky-captured.png)](https://github.com/TLINDEN/golsky/blob/main/.github/assets/screenshots/golsky-captured.png)
 [![golsky-dark-theme.png](https://github.com/TLINDEN/golsky/blob/main/.github/assets/screenshots/256_golsky-dark-theme.png)](https://github.com/TLINDEN/golsky/blob/main/.github/assets/screenshots/golsky-dark-theme.png)
 
-
 [Youtube video game preview](https://www.youtube.com/watch?v=xEto6Oew16I)
 
 # Features

TODO.md

@@ -1,29 +1,23 @@
 - add all other options like size etc
 - add gif export
-- add toolbar (not working yet, see branch trackui)
+- add toolbar
+- turn input ifs to switch
 - only draw visible part of the world
+- use themes instead of the current weird color lists
 - print current mode to the bottom like pause, insert and mark
 - add https://www.ibiblio.org/lifepatterns/october1970.html
 - history: dont count age but do calc to get index to age tile based on cell age
 - maybe pre calc neighbors as 8 slice of pointers to neighboring cells to faster do the count
-  see various-tests/perf-2dim-pointers/: it's NOT faster :(
-- use an array of 8 pointers to neighbors. on edge just add either fake dead neighbors or the wrap around neighbors.
-- try arche ecs variant with either a component of the cells neighbors or using relations.
 - https://mattnakama.com/blog/go-branchless-coding/
 - add performance measurements, see:
   DrawTriangles: https://github.com/TLINDEN/testgol
   WritePixels:   https://github.com/TLINDEN/testgol/tree/wrpixels
 https://www.tasnimzotder.com/blog/optimizing-game-of-life-algorithm
-- pre-draw the grid separately to a cache grid image, then during
-  rendering, first draw the dead background, then the life cells, and
-  lastly the grid - if enabled. If disabled, there's be no gap between
-  the cells anymore.
+
+- show gridlines menu has no effect of grid was enabled with -g
+
 - Speed
   https://conwaylife.com/forums/viewtopic.php?f=7&t=3237
-  Look at try-pointers-and-cells branch, we're using pre-calculated
-  neighbor list of pointers to cells, but it's only a liiiiitle bit
-  better :(
-
   
 - Patterns:
 

go.mod

@@ -13,10 +13,9 @@ require (
 	github.com/ebitengine/gomobile v0.0.0-20240518074828-e86332849895 // indirect
 	github.com/ebitengine/hideconsole v1.0.0 // indirect
 	github.com/ebitengine/purego v0.7.0 // indirect
-	github.com/ebitenui/ebitenui v0.5.8-0.20240608175527-424f62327b21 // indirect
+	github.com/ebitenui/ebitenui v0.5.8-0.20240608230235-27496c28f409 // indirect
 	github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0 // indirect
 	github.com/jezek/xgb v1.1.1 // indirect
-	github.com/mlange-42/arche v0.13.0 // indirect
 	github.com/tinne26/etxt v0.0.8 // indirect
 	golang.org/x/exp v0.0.0-20240222234643-814bf88cf225 // indirect
 	golang.org/x/sync v0.7.0 // indirect

go.sum

@@ -10,14 +10,14 @@ github.com/ebitenui/ebitenui v0.5.6 h1:qyJRU5j+lQo1lamxB48IBwMxMfz1xNb5iWUayCtA0
 github.com/ebitenui/ebitenui v0.5.6/go.mod h1:I0rVbTOUi7gWKTPet2gzbvhOdkHp5pJXMM6c6b3dRoE=
 github.com/ebitenui/ebitenui v0.5.8-0.20240608175527-424f62327b21 h1:dElhYGyf+FYY+makAndUQNOSDwFSFYyFWziPwQrPObY=
 github.com/ebitenui/ebitenui v0.5.8-0.20240608175527-424f62327b21/go.mod h1:I0rVbTOUi7gWKTPet2gzbvhOdkHp5pJXMM6c6b3dRoE=
+github.com/ebitenui/ebitenui v0.5.8-0.20240608230235-27496c28f409 h1:wsPobs+O3ZmZvhtNtmnMkaB1FRM7tuZ60P0/jegRQGg=
+github.com/ebitenui/ebitenui v0.5.8-0.20240608230235-27496c28f409/go.mod h1:I0rVbTOUi7gWKTPet2gzbvhOdkHp5pJXMM6c6b3dRoE=
 github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0 h1:DACJavvAHhabrF08vX0COfcOBJRhZ8lUbR+ZWIs0Y5g=
 github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0/go.mod h1:E/TSTwGwJL78qG/PmXZO1EjYhfJinVAhrmmHX6Z8B9k=
 github.com/hajimehoshi/ebiten/v2 v2.7.4 h1:X+heODRQ3Ie9F9QFjm24gEZqQd5FSfR9XuT2XfHwgf8=
 github.com/hajimehoshi/ebiten/v2 v2.7.4/go.mod h1:H2pHVgq29rfm5yeQ7jzWOM3VHsjo7/AyucODNLOhsVY=
 github.com/jezek/xgb v1.1.1 h1:bE/r8ZZtSv7l9gk6nU0mYx51aXrvnyb44892TwSaqS4=
 github.com/jezek/xgb v1.1.1/go.mod h1:nrhwO0FX/enq75I7Y7G8iN1ubpSGZEiA3v9e9GyRFlk=
-github.com/mlange-42/arche v0.13.0 h1:ef0fu9qC2KIr8wIlVs+CgeQ5CSUJ8A1Hut6nXYdf+xk=
-github.com/mlange-42/arche v0.13.0/go.mod h1:bFktKnvGDj2kP01xar79z0hKwGHdnoaEZR8HWmJkIyU=
 github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
 github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
 github.com/tinne26/etxt v0.0.8 h1:rjb58jkMkapRGLmhBMWnT76E/nMTXC5P1Q956BRZkoc=

src/config.go

@@ -278,8 +278,10 @@ func (config *Config) SwitchTheme(theme string) {
 }
 
 func (config *Config) ToggleGridlines() {
+	fmt.Printf("toggle grid lines, current: %t\n", config.ShowGrid)
 	config.ShowGrid = !config.ShowGrid
 	config.RestartCache = true
+	fmt.Printf("toggle grid lines, new: %t\n", config.ShowGrid)
 }
 
 func (config *Config) ToggleEvolution() {

src/game.go

@@ -23,6 +23,7 @@ func NewGame(config *Config, startscene SceneName) *Game {
 	// setup scene[s]
 	game.CurrentScene = startscene
 	game.Scenes[Play] = NewPlayScene(game, config)
+	game.Scenes[Toolbar] = NewToolbarScene(game, config)
 	game.Scenes[Menu] = NewMenuScene(game, config)
 	game.Scenes[Options] = NewOptionsScene(game, config)
 	game.Scenes[Keybindings] = NewKeybindingsScene(game, config)
@@ -47,16 +48,22 @@ func (game *Game) Layout(outsideWidth, outsideHeight int) (int, int) {
 }
 
 func (game *Game) Update() error {
-	scene := game.GetCurrentScene()
+	currentscene := game.GetCurrentScene()
 
+	for _, scene := range game.Scenes {
+		if scene.IsPrimary() || scene == currentscene {
 			if quit := scene.Update(); quit != nil {
 				return quit
 			}
 
-	next := scene.GetNext()
+		}
+	}
+
+	next := currentscene.GetNext()
+
 	if next != game.CurrentScene {
 		game.Scenes[next].SetPrevious(game.CurrentScene)
-		scene.ResetNext()
+		currentscene.ResetNext()
 		game.CurrentScene = next
 	}
 
@@ -65,6 +72,7 @@ func (game *Game) Update() error {
 
 func (game *Game) Draw(screen *ebiten.Image) {
 	// first draw primary scene[s], although there are only 1
+	skip := false
 	for current, scene := range game.Scenes {
 		if scene.IsPrimary() {
 			// primary scenes always draw
@@ -72,10 +80,15 @@ func (game *Game) Draw(screen *ebiten.Image) {
 
 			if current == game.CurrentScene {
 				// avoid to redraw it in the next step
+				skip = true
+				break
+			}
+		}
+	}
+
+	if skip {
 		return
 	}
-		}
-	}
 
 	scene := game.GetCurrentScene()
 	scene.Draw(screen)

src/menu.go

@@ -1,7 +1,9 @@
 package main
 
 import (
+	"fmt"
 	"image/color"
+	"os"
 
 	"github.com/ebitenui/ebitenui"
 	"github.com/ebitenui/ebitenui/widget"
@@ -18,7 +20,6 @@ type SceneMenu struct {
 	Ui        *ebitenui.UI
 	FontColor color.RGBA
 	First     bool
-	Exit      bool
 }
 
 func NewMenuScene(game *Game, config *Config) Scene {
@@ -54,10 +55,6 @@ func (scene *SceneMenu) SetNext(next SceneName) {
 func (scene *SceneMenu) Update() error {
 	scene.Ui.Update()
 
-	if scene.Exit {
-		return ebiten.Termination
-	}
-
 	if inpututil.IsKeyJustPressed(ebiten.KeyEscape) || inpututil.IsKeyJustPressed(ebiten.KeyQ) {
 		scene.Config.DelayedStart = false
 		scene.Leave()
@@ -105,6 +102,7 @@ func (scene *SceneMenu) Init() {
 
 	options := NewMenuButton("Options",
 		func(args *widget.ButtonClickedEventArgs) {
+			fmt.Println("menu => options")
 			scene.SetNext(Options)
 		})
 
@@ -124,7 +122,7 @@ func (scene *SceneMenu) Init() {
 
 	quit := NewMenuButton("Exit Golsky",
 		func(args *widget.ButtonClickedEventArgs) {
-			scene.Exit = true
+			os.Exit(0)
 		})
 
 	rowContainer.AddChild(empty)

src/options.go

@@ -1,8 +1,10 @@
 package main
 
 import (
+	"fmt"
 	"image/color"
 
+	"github.com/alecthomas/repr"
 	"github.com/ebitenui/ebitenui"
 	"github.com/ebitenui/ebitenui/widget"
 	"github.com/hajimehoshi/ebiten/v2"
@@ -94,6 +96,8 @@ func (scene *SceneOptions) Init() {
 	gridlines := NewCheckbox("Show grid lines",
 		scene.Config.ShowGrid,
 		func(args *widget.CheckboxChangedEventArgs) {
+			fmt.Println("CHECKBOX CALLED")
+			repr.Println(args.State)
 			scene.Config.ToggleGridlines()
 		})
 

src/play.go

@@ -6,6 +6,7 @@ import (
 	"log"
 	"unsafe"
 
+	uiinput "github.com/ebitenui/ebitenui/input"
 	"github.com/hajimehoshi/ebiten/v2"
 	"github.com/hajimehoshi/ebiten/v2/inpututil"
 	"github.com/hajimehoshi/ebiten/v2/vector"
@@ -18,7 +19,7 @@ type Images struct {
 }
 
 const (
-	DEBUG_FORMAT = "FPS: %0.2f, TPG: %d, M: %0.2fMB, Generations: %d\nScale: %.02f, Zoom: %d, Cam: %.02f,%.02f Cursor: %d,%d  %s"
+	DEBUG_FORMAT = "FPS: %0.2f, TPG: %d, M: %0.2fMB, Generations: %d\nScale: %.02f, Zoom: %d, Cam: %.02f,%.02f Cursor: %d,%d  %s, UI Active: %t"
 )
 
 type ScenePlay struct {
@@ -174,40 +175,50 @@ func (scene *ScenePlay) CheckExit() error {
 }
 
 func (scene *ScenePlay) CheckInput() {
-	// primary functions, always available
-	switch {
-	case inpututil.IsKeyJustPressed(ebiten.KeyEscape):
+	if inpututil.IsKeyJustPressed(ebiten.KeyEscape) {
 		scene.SetNext(Menu)
-	case inpututil.IsKeyJustPressed(ebiten.KeyO):
+	}
+
+	if inpututil.IsKeyJustPressed(ebiten.KeyO) {
 		scene.SetNext(Options)
-	case inpututil.IsKeyJustPressed(ebiten.KeyC):
+	}
+
+	if inpututil.IsKeyJustPressed(ebiten.KeyC) {
 		scene.Config.Markmode = true
 		scene.Config.Drawmode = false
 		scene.Config.Paused = true
-	case inpututil.IsKeyJustPressed(ebiten.KeyI):
+	}
+
+	if inpututil.IsKeyJustPressed(ebiten.KeyI) {
 		scene.Config.Drawmode = true
 		scene.Config.Paused = true
 	}
 
 	if scene.Config.Markmode {
-		// no need to check any more input in mark mode
 		return
 	}
 
-	switch {
-	case inpututil.IsKeyJustPressed(ebiten.KeySpace) || inpututil.IsKeyJustPressed(ebiten.KeyEnter):
+	if inpututil.IsKeyJustPressed(ebiten.KeySpace) || inpututil.IsKeyJustPressed(ebiten.KeyEnter) {
 		scene.Config.TogglePaused()
-	case inpututil.IsKeyJustPressed(ebiten.KeyPageDown):
+	}
+
+	if inpututil.IsKeyJustPressed(ebiten.KeyPageDown) {
 		if scene.TPG < 120 {
 			scene.TPG++
 		}
-	case inpututil.IsKeyJustPressed(ebiten.KeyPageUp):
+	}
+
+	if inpututil.IsKeyJustPressed(ebiten.KeyPageUp) {
 		if scene.TPG >= 1 {
 			scene.TPG--
 		}
-	case inpututil.IsKeyJustPressed(ebiten.KeyS):
+	}
+
+	if inpututil.IsKeyJustPressed(ebiten.KeyS) {
 		scene.SaveState()
-	case inpututil.IsKeyJustPressed(ebiten.KeyD):
+	}
+
+	if inpututil.IsKeyJustPressed(ebiten.KeyD) {
 		scene.Config.Debug = !scene.Config.Debug
 	}
 
@@ -220,12 +231,15 @@ func (scene *ScenePlay) CheckInput() {
 
 func (scene *ScenePlay) CheckDrawingInput() {
 	if scene.Config.Drawmode {
-		switch {
-		case ebiten.IsMouseButtonPressed(ebiten.MouseButtonLeft):
+		if ebiten.IsMouseButtonPressed(ebiten.MouseButtonLeft) {
 			scene.ToggleCellOnCursorPos(Alive)
-		case ebiten.IsMouseButtonPressed(ebiten.MouseButtonRight):
+		}
+
+		if ebiten.IsMouseButtonPressed(ebiten.MouseButtonRight) {
 			scene.ToggleCellOnCursorPos(Dead)
-		case inpututil.IsKeyJustPressed(ebiten.KeyEscape):
+		}
+
+		if inpututil.IsKeyJustPressed(ebiten.KeyEscape) {
 			scene.Config.Drawmode = false
 		}
 	}
@@ -269,14 +283,16 @@ func (scene *ScenePlay) CheckDraggingInput() {
 	}
 
 	// also support the arrow keys to move the canvas
-	switch {
-	case ebiten.IsKeyPressed(ebiten.KeyArrowLeft):
+	if ebiten.IsKeyPressed(ebiten.KeyArrowLeft) {
 		scene.Camera.Position[0] -= 1
-	case ebiten.IsKeyPressed(ebiten.KeyArrowRight):
+	}
+	if ebiten.IsKeyPressed(ebiten.KeyArrowRight) {
 		scene.Camera.Position[0] += 1
-	case ebiten.IsKeyPressed(ebiten.KeyArrowUp):
+	}
+	if ebiten.IsKeyPressed(ebiten.KeyArrowUp) {
 		scene.Camera.Position[1] -= 1
-	case ebiten.IsKeyPressed(ebiten.KeyArrowDown):
+	}
+	if ebiten.IsKeyPressed(ebiten.KeyArrowDown) {
 		scene.Camera.Position[1] += 1
 	}
 
@@ -409,11 +425,12 @@ func (scene *ScenePlay) Update() error {
 		return quit
 	}
 
+	if !uiinput.UIActive {
 		scene.CheckInput()
 		scene.CheckDrawingInput()
 		scene.CheckDraggingInput()
 		scene.CheckMarkInput()
-
+	}
 	if !scene.Config.Paused || scene.RunOneStep {
 		scene.UpdateCells()
 	}
@@ -467,6 +484,9 @@ func (scene *ScenePlay) Draw(screen *ebiten.Image) {
 	scene.Camera.Render(scene.World, screen)
 
 	scene.DrawDebug(screen)
+
+	// draw the toolbar directly from here, because otherwise it flickers
+	scene.Game.Scenes[Toolbar].Draw(screen)
 }
 
 func (scene *ScenePlay) DrawEvolution(screen *ebiten.Image, x, y int, op *ebiten.DrawImageOptions) {
@@ -534,7 +554,7 @@ func (scene *ScenePlay) DrawDebug(screen *ebiten.Image) {
 			scene.Game.Scale, scene.Camera.ZoomFactor,
 			scene.Camera.Position[0], scene.Camera.Position[1],
 			x, y,
-			paused)
+			paused, uiinput.UIActive)
 
 		FontRenderer.Renderer.SetSizePx(10 + int(scene.Game.Scale*10))
 		FontRenderer.Renderer.SetTarget(screen)

src/scene.go

@@ -25,4 +25,5 @@ const (
 	Play        // actual playing happens here
 	Options
 	Keybindings
+	Toolbar
 )

src/theme.go

@@ -38,32 +38,32 @@ var THEMES = map[string]ThemeDef{
 	"standard": {
 		life: "e15f0b",
 		dead: "5a5a5a",
-		old:  "ff1e1e",
 		grid: "808080",
+		old:  "7b5e4b",
 		age1: "735f52",
 		age2: "6c6059",
 		age3: "635d59",
-		age4: "7b5e4b",
+		age4: "808080",
 	},
 	"dark": {
 		life: "c8c8c8",
 		dead: "000000",
 		old:  "ff1e1e",
-		grid: "808080",
 		age1: "522600",
 		age2: "422300",
 		age3: "2b1b00",
 		age4: "191100",
+		grid: "808080",
 	},
 	"light": {
 		life: "000000",
 		dead: "c8c8c8",
 		old:  "ff1e1e",
-		grid: "808080",
 		age1: "ffc361",
 		age2: "ffd38c",
 		age3: "ffe3b5",
 		age4: "fff0e0",
+		grid: "808080",
 	},
 }
 

src/toolbar.go

@@ -0,0 +1,95 @@
+package main
+
+import (
+	"fmt"
+	"image/color"
+
+	"github.com/ebitenui/ebitenui"
+	"github.com/ebitenui/ebitenui/widget"
+	"github.com/hajimehoshi/ebiten/v2"
+	"github.com/hajimehoshi/ebiten/v2/inpututil"
+)
+
+type SceneToolbar struct {
+	Game      *Game
+	Config    *Config
+	Next      SceneName
+	Prev      SceneName
+	Whoami    SceneName
+	Ui        *ebitenui.UI
+	FontColor color.RGBA
+}
+
+func NewToolbarScene(game *Game, config *Config) Scene {
+	scene := &SceneToolbar{
+		Whoami:    Toolbar,
+		Game:      game,
+		Next:      Toolbar,
+		Config:    config,
+		FontColor: color.RGBA{255, 30, 30, 0xff},
+	}
+
+	scene.Init()
+
+	return scene
+}
+
+func (scene *SceneToolbar) GetNext() SceneName {
+	return scene.Next
+}
+
+func (scene *SceneToolbar) SetPrevious(prev SceneName) {
+	scene.Prev = prev
+}
+
+func (scene *SceneToolbar) ResetNext() {
+	scene.Next = scene.Whoami
+}
+
+func (scene *SceneToolbar) SetNext(next SceneName) {
+	scene.Next = next
+}
+
+func (scene *SceneToolbar) IsPrimary() bool {
+	return true
+}
+
+func (scene *SceneToolbar) Update() error {
+	scene.Ui.Update()
+
+	if inpututil.IsKeyJustPressed(ebiten.KeyEscape) || inpututil.IsKeyJustPressed(ebiten.KeyQ) {
+		scene.SetNext(Play)
+	}
+
+	return nil
+
+}
+
+func (scene *SceneToolbar) Draw(screen *ebiten.Image) {
+	scene.Ui.Draw(screen)
+}
+
+func (scene *SceneToolbar) SetInitialValue(w *widget.LabeledCheckbox, value bool) {
+	if value {
+		w.SetState(
+			widget.WidgetChecked,
+		)
+	}
+}
+
+func (scene *SceneToolbar) Init() {
+	rowContainer := NewTopRowContainer("Toolbar")
+
+	options := NewToolbarButton(Assets["options"],
+		func(args *widget.ButtonClickedEventArgs) {
+			fmt.Println("options")
+			scene.SetNext(Options)
+		})
+
+	rowContainer.AddChild(options)
+
+	scene.Ui = &ebitenui.UI{
+		Container: rowContainer.Container(),
+	}
+
+}

src/widgets.go

@@ -5,6 +5,7 @@ import (
 
 	"github.com/ebitenui/ebitenui/image"
 	"github.com/ebitenui/ebitenui/widget"
+	"github.com/hajimehoshi/ebiten/v2"
 )
 
 func NewMenuButton(
@@ -40,6 +41,32 @@ func NewMenuButton(
 	)
 }
 
+func NewToolbarButton(
+	icon *ebiten.Image,
+	action func(args *widget.ButtonClickedEventArgs)) *widget.Container {
+
+	buttonImage, _ := LoadButtonImage()
+
+	iconContainer := widget.NewContainer(
+		widget.ContainerOpts.Layout(widget.NewStackedLayout()),
+		widget.ContainerOpts.WidgetOpts(widget.WidgetOpts.LayoutData(widget.AnchorLayoutData{
+			HorizontalPosition: widget.AnchorLayoutPositionCenter,
+			VerticalPosition:   widget.AnchorLayoutPositionCenter,
+		})),
+	)
+
+	button := widget.NewButton(
+		widget.ButtonOpts.Image(buttonImage),
+		widget.ButtonOpts.ClickedHandler(action),
+	)
+
+	iconContainer.AddChild(button)
+
+	iconContainer.AddChild(widget.NewGraphic(widget.GraphicOpts.Image(icon)))
+
+	return iconContainer
+}
+
 func NewCheckbox(
 	text string,
 	initialvalue bool,
@@ -215,6 +242,37 @@ func (container *RowContainer) Container() *widget.Container {
 	return container.Root
 }
 
+// setup a top level toolbar container
+func NewTopRowContainer(title string) *RowContainer {
+	buttonImageHover := image.NewNineSlice(Assets["button-9slice3"], [3]int{3, 3, 3}, [3]int{3, 3, 3})
+
+	uiContainer := widget.NewContainer(
+		widget.ContainerOpts.Layout(widget.NewAnchorLayout()),
+	)
+
+	rowContainer := widget.NewContainer(
+		widget.ContainerOpts.WidgetOpts(
+			widget.WidgetOpts.LayoutData(widget.AnchorLayoutData{
+				HorizontalPosition: widget.AnchorLayoutPositionStart,
+				VerticalPosition:   widget.AnchorLayoutPositionStart,
+			}),
+		),
+		widget.ContainerOpts.Layout(widget.NewRowLayout(
+			widget.RowLayoutOpts.Direction(widget.DirectionVertical),
+			widget.RowLayoutOpts.Padding(widget.NewInsetsSimple(8)),
+			widget.RowLayoutOpts.Spacing(0),
+		)),
+		widget.ContainerOpts.BackgroundImage(buttonImageHover),
+	)
+
+	uiContainer.AddChild(rowContainer)
+
+	return &RowContainer{
+		Root: uiContainer,
+		Row:  rowContainer,
+	}
+}
+
 // set arg to false if no background needed
 func NewRowContainer(title string) *RowContainer {
 	buttonImageHover := image.NewNineSlice(Assets["button-9slice3"], [3]int{3, 3, 3}, [3]int{3, 3, 3})

various-tests/README.md

@@ -3,10 +3,7 @@
 Running with 1500x1500 grid 5k times
 
 | Variation          | Description                                                                 | Duration |
-|------------------------------|-----------------------------------------------------------------------------|-------------------|
+|--------------------|-----------------------------------------------------------------------------|----------|
 | perf-2dim          | uses 2d grid of bools, no tuning                                            | 00:03:14 |
-| perf-2dim-pointers           | use 2d grid of `Cell{Neighbors,NeighborCount}`s using pointers to neighbors | 00:03:35/00:04:75 |
-| perf-2dim-pointers-array     | same as above but array of neighbors instead of slice                       | 00:02:40          |
-| perf-2dim-pointers-all-array | use arrays for everything, static 1500x1500                                 | infinite, aborted |
+| perf-2dim-pointers | use 2d grid of `Cell{Neighbors,NeighborCount}`s using pointers to neighbors | 00:03:35 |
 | perf-1dim          | use 1d grid of bools, access using y*x, no further tuning                   | 00:03:24 |
-| perf-ecs                     | use arche ecs, unusable                                                     | 00:14:51          |

various-tests/perf-2dim-pointers-all-array/go.mod

@@ -1,3 +0,0 @@
-module perf
-
-go 1.22

various-tests/perf-2dim-pointers-all-array/main.go

@@ -1,141 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"log"
-	"math/rand"
-	"os"
-	"runtime/pprof"
-	"time"
-	"unsafe"
-)
-
-const (
-	max     int  = 1500
-	loops   int  = 5000
-	density int  = 8
-	debug   bool = false
-)
-
-type Cell struct {
-	State         bool
-	Neighbors     [8]*Cell
-	NeighborCount int
-}
-
-type Grid [1500][1500]Cell
-
-// https://dev.to/chigbeef_77/bool-int-but-stupid-in-go-3jb3
-func bool2int(b bool) int {
-	return int(*(*byte)(unsafe.Pointer(&b)))
-}
-
-func (cell *Cell) Count(x, y int) {
-	cell.NeighborCount = 0
-
-	for _, neighbor := range cell.Neighbors {
-		cell.NeighborCount += bool2int(neighbor.State)
-	}
-}
-
-func SetNeighbors(grid Grid, x, y int) {
-	cells := []*Cell{}
-	deadcell := &Cell{}
-
-	for nbgX := -1; nbgX < 2; nbgX++ {
-		for nbgY := -1; nbgY < 2; nbgY++ {
-			var col, row int
-
-			if x+nbgX < 0 || x+nbgX >= max || y+nbgY < 0 || y+nbgY >= max {
-				cells = append(cells, deadcell)
-			} else {
-
-				col = x + nbgX
-				row = y + nbgY
-
-				if col == x && row == y {
-					// do not add self
-					continue
-				}
-
-				cells = append(cells, &grid[row][col])
-			}
-		}
-	}
-
-	for idx, cell := range cells {
-		grid[y][x].Neighbors[idx] = cell
-	}
-}
-
-func Init() Grid {
-	grid := Grid{}
-
-	for y := 0; y < max; y++ {
-		for x := 0; x < max; x++ {
-			if rand.Intn(density) == 1 {
-				grid[y][x].State = true
-			}
-		}
-	}
-
-	for y := 0; y < max; y++ {
-		for x := 0; x < max; x++ {
-			SetNeighbors(grid, x, y)
-		}
-	}
-
-	return grid
-}
-
-func Loop(grid Grid) {
-	c := 0
-	for i := 0; i < loops; i++ {
-		for y := 0; y < max; y++ {
-			for x := 0; x < max; x++ {
-				cell := &grid[y][x]
-				state := cell.State
-
-				cell.Count(x, y)
-
-				if state && cell.NeighborCount > 1 {
-					if debug {
-						fmt.Printf(
-							"Loop %d - cell at %d,%d is %t and has %d living neighbors\n",
-							i, x, y, state, cell.NeighborCount)
-					}
-					c = 1
-				}
-			}
-		}
-	}
-
-	if c > 1 {
-		c = 0
-	}
-}
-
-func main() {
-	// enable  cpu profiling. Do  NOT use q  to stop the  game but
-	// close the window to get a profile
-	fd, err := os.Create("cpu.profile")
-	if err != nil {
-		log.Fatal(err)
-	}
-	defer fd.Close()
-
-	pprof.StartCPUProfile(fd)
-	defer pprof.StopCPUProfile()
-
-	// init
-	grid := Init()
-
-	// main loop
-	loopstart := time.Now()
-
-	Loop(grid)
-
-	loopend := time.Now()
-	diff := loopstart.Sub(loopend)
-	fmt.Printf("Loop took %.04f\n", diff.Seconds())
-}

various-tests/perf-2dim-pointers-array/go.mod

@@ -1,3 +0,0 @@
-module perf
-
-go 1.22

various-tests/perf-2dim-pointers-array/main.go

@@ -1,139 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"log"
-	"math/rand"
-	"os"
-	"runtime/pprof"
-	"time"
-	"unsafe"
-)
-
-const (
-	max     int  = 1500
-	loops   int  = 5000
-	density int  = 8
-	debug   bool = false
-)
-
-type Cell struct {
-	State         bool
-	Neighbors     [8]*Cell
-	NeighborCount int
-}
-
-// https://dev.to/chigbeef_77/bool-int-but-stupid-in-go-3jb3
-func bool2int(b bool) int {
-	return int(*(*byte)(unsafe.Pointer(&b)))
-}
-
-func (cell *Cell) Count(x, y int) {
-	cell.NeighborCount = 0
-
-	for _, neighbor := range cell.Neighbors {
-		cell.NeighborCount += bool2int(neighbor.State)
-	}
-}
-
-func SetNeighbors(grid [][]Cell, x, y int) {
-	cells := []*Cell{}
-	deadcell := &Cell{}
-
-	for nbgX := -1; nbgX < 2; nbgX++ {
-		for nbgY := -1; nbgY < 2; nbgY++ {
-			var col, row int
-
-			if x+nbgX < 0 || x+nbgX >= max || y+nbgY < 0 || y+nbgY >= max {
-				cells = append(cells, deadcell)
-			} else {
-
-				col = x + nbgX
-				row = y + nbgY
-
-				if col == x && row == y {
-					// do not add self
-					continue
-				}
-
-				cells = append(cells, &grid[row][col])
-			}
-		}
-	}
-
-	for idx, cell := range cells {
-		grid[y][x].Neighbors[idx] = cell
-	}
-}
-
-func Init() [][]Cell {
-	grid := make([][]Cell, max)
-	for y := 0; y < max; y++ {
-		grid[y] = make([]Cell, max)
-		for x := 0; x < max; x++ {
-			if rand.Intn(density) == 1 {
-				grid[y][x].State = true
-			}
-		}
-	}
-
-	for y := 0; y < max; y++ {
-		for x := 0; x < max; x++ {
-			SetNeighbors(grid, x, y)
-		}
-	}
-
-	return grid
-}
-
-func Loop(grid [][]Cell) {
-	c := 0
-	for i := 0; i < loops; i++ {
-		for y := 0; y < max; y++ {
-			for x := 0; x < max; x++ {
-				cell := &grid[y][x]
-				state := cell.State
-
-				cell.Count(x, y)
-
-				if state && cell.NeighborCount > 1 {
-					if debug {
-						fmt.Printf(
-							"Loop %d - cell at %d,%d is %t and has %d living neighbors\n",
-							i, x, y, state, cell.NeighborCount)
-					}
-					c = 1
-				}
-			}
-		}
-	}
-
-	if c > 1 {
-		c = 0
-	}
-}
-
-func main() {
-	// enable  cpu profiling. Do  NOT use q  to stop the  game but
-	// close the window to get a profile
-	fd, err := os.Create("cpu.profile")
-	if err != nil {
-		log.Fatal(err)
-	}
-	defer fd.Close()
-
-	pprof.StartCPUProfile(fd)
-	defer pprof.StopCPUProfile()
-
-	// init
-	grid := Init()
-
-	// main loop
-	loopstart := time.Now()
-
-	Loop(grid)
-
-	loopend := time.Now()
-	diff := loopstart.Sub(loopend)
-	fmt.Printf("Loop took %.04f\n", diff.Seconds())
-}

various-tests/perf-ecs/go.mod

@@ -1,5 +0,0 @@
-module perf
-
-go 1.22
-
-require github.com/mlange-42/arche v0.13.0 // indirect

various-tests/perf-ecs/go.sum

@@ -1,2 +0,0 @@
-github.com/mlange-42/arche v0.13.0 h1:ef0fu9qC2KIr8wIlVs+CgeQ5CSUJ8A1Hut6nXYdf+xk=
-github.com/mlange-42/arche v0.13.0/go.mod h1:bFktKnvGDj2kP01xar79z0hKwGHdnoaEZR8HWmJkIyU=

various-tests/perf-ecs/main.go

@@ -1,145 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"log"
-	"math/rand"
-	"os"
-	"runtime/pprof"
-
-	"github.com/mlange-42/arche/ecs"
-	"github.com/mlange-42/arche/generic"
-)
-
-const (
-	max     int  = 1500
-	loops   int  = 5000
-	density int  = 8
-	debug   bool = false
-)
-
-// components
-type Pos struct {
-	X, Y, GridX, GridY int
-}
-
-type Cell struct {
-	State     bool
-	Neighbors [8]ecs.Entity
-}
-
-type ECS struct {
-	World  *ecs.World
-	Filter *generic.Filter2[Pos, Cell]
-	Map    *generic.Map2[Pos, Cell]
-}
-
-func (cell *Cell) NeighborCount(ECS *ECS) int {
-	sum := 0
-
-	for _, neighbor := range cell.Neighbors {
-		if ECS.World.Alive(neighbor) {
-			_, cel := ECS.Map.Get(neighbor)
-			if cel.State {
-				sum++
-			}
-		}
-	}
-
-	return sum
-}
-
-func Loop(ECS *ECS) {
-	c := 0
-
-	for i := 0; i < loops; i++ {
-		query := ECS.Filter.Query(ECS.World)
-
-		for query.Next() {
-			_, cel := query.Get()
-			if cel.State && cel.NeighborCount(ECS) > 1 {
-				c = 1
-			}
-		}
-	}
-
-	if c > 1 {
-		c = 0
-	}
-}
-
-func SetupWorld() *ECS {
-	world := ecs.NewWorld()
-
-	builder := generic.NewMap2[Pos, Cell](&world)
-
-	// we need a temporary grid in order to find out neighbors
-	grid := [max][max]ecs.Entity{}
-
-	// setup entities
-	for y := 0; y < max; y++ {
-		for x := 0; x < max; x++ {
-			e := builder.New()
-			pos, cell := builder.Get(e)
-			pos.X = x
-			pos.Y = y // pos.GridX = x*cellsize
-
-			cell.State = false
-			if rand.Intn(density) == 1 {
-				cell.State = true
-			}
-
-			// store to tmp grid
-			grid[y][x] = e
-		}
-	}
-
-	// global filter
-	filter := generic.NewFilter2[Pos, Cell]()
-
-	query := filter.Query(&world)
-
-	for query.Next() {
-		pos, cel := query.Get()
-
-		n := 0
-		for x := -1; x < 2; x++ {
-			for y := -1; y < 2; y++ {
-				XX := pos.X + x
-				YY := pos.Y + y
-				if XX < 0 || XX >= max || YY < 0 || YY >= max {
-					continue
-				}
-
-				if pos.X != XX || pos.Y != YY {
-					cel.Neighbors[n] = grid[XX][YY]
-					n++
-				}
-			}
-		}
-	}
-
-	return &ECS{World: &world, Filter: filter, Map: &builder}
-}
-
-func main() {
-	// enable  cpu profiling. Do  NOT use q  to stop the  game but
-	// close the window to get a profile
-	fd, err := os.Create("cpu.profile")
-	if err != nil {
-		log.Fatal(err)
-	}
-	defer fd.Close()
-
-	pprof.StartCPUProfile(fd)
-	defer pprof.StopCPUProfile()
-
-	// init
-	fmt.Print("Setup ... ")
-	ECS := SetupWorld()
-	fmt.Println("done")
-	fmt.Println(ECS.World.Stats())
-
-	// main loop
-	Loop(ECS)
-}

various-tests/writepixel-pointers-int/go.mod

@@ -1,13 +0,0 @@
-module testgol
-
-go 1.22
-
-require (
-	github.com/ebitengine/gomobile v0.0.0-20240518074828-e86332849895 // indirect
-	github.com/ebitengine/hideconsole v1.0.0 // indirect
-	github.com/ebitengine/purego v0.7.0 // indirect
-	github.com/hajimehoshi/ebiten/v2 v2.7.4 // indirect
-	github.com/jezek/xgb v1.1.1 // indirect
-	golang.org/x/sync v0.7.0 // indirect
-	golang.org/x/sys v0.20.0 // indirect
-)

various-tests/writepixel-pointers-int/go.sum

@@ -1,14 +0,0 @@
-github.com/ebitengine/gomobile v0.0.0-20240518074828-e86332849895 h1:48bCqKTuD7Z0UovDfvpCn7wZ0GUZ+yosIteNDthn3FU=
-github.com/ebitengine/gomobile v0.0.0-20240518074828-e86332849895/go.mod h1:XZdLv05c5hOZm3fM2NlJ92FyEZjnslcMcNRrhxs8+8M=
-github.com/ebitengine/hideconsole v1.0.0 h1:5J4U0kXF+pv/DhiXt5/lTz0eO5ogJ1iXb8Yj1yReDqE=
-github.com/ebitengine/hideconsole v1.0.0/go.mod h1:hTTBTvVYWKBuxPr7peweneWdkUwEuHuB3C1R/ielR1A=
-github.com/ebitengine/purego v0.7.0 h1:HPZpl61edMGCEW6XK2nsR6+7AnJ3unUxpTZBkkIXnMc=
-github.com/ebitengine/purego v0.7.0/go.mod h1:ah1In8AOtksoNK6yk5z1HTJeUkC1Ez4Wk2idgGslMwQ=
-github.com/hajimehoshi/ebiten/v2 v2.7.4 h1:X+heODRQ3Ie9F9QFjm24gEZqQd5FSfR9XuT2XfHwgf8=
-github.com/hajimehoshi/ebiten/v2 v2.7.4/go.mod h1:H2pHVgq29rfm5yeQ7jzWOM3VHsjo7/AyucODNLOhsVY=
-github.com/jezek/xgb v1.1.1 h1:bE/r8ZZtSv7l9gk6nU0mYx51aXrvnyb44892TwSaqS4=
-github.com/jezek/xgb v1.1.1/go.mod h1:nrhwO0FX/enq75I7Y7G8iN1ubpSGZEiA3v9e9GyRFlk=
-golang.org/x/sync v0.7.0 h1:YsImfSBoP9QPYL0xyKJPq0gcaJdG3rInoqxTWbfQu9M=
-golang.org/x/sync v0.7.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
-golang.org/x/sys v0.20.0 h1:Od9JTbYCk261bKm4M/mw7AklTlFYIa0bIp9BgSm1S8Y=
-golang.org/x/sys v0.20.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=

various-tests/writepixel-pointers-int/main.go

@@ -1,306 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"log"
-	"math/rand"
-	"os"
-	"os/exec"
-	"runtime/pprof"
-	"unsafe"
-
-	"github.com/hajimehoshi/ebiten/v2"
-	"github.com/hajimehoshi/ebiten/v2/inpututil"
-)
-
-type Images struct {
-	Black, White *ebiten.Image
-}
-
-type Cell struct {
-	State         uint8
-	Neighbors     [8]*Cell
-	NeighborCount int
-}
-
-func bool2int(b bool) int {
-	return int(*(*byte)(unsafe.Pointer(&b)))
-}
-
-func (cell *Cell) Count(x, y int) uint8 {
-	var sum uint8
-
-	for idx := 0; idx < cell.NeighborCount; idx++ {
-		sum += cell.Neighbors[idx].State
-	}
-
-	return sum
-}
-
-func SetNeighbors(grid [][]*Cell, x, y, width, height int) {
-	idx := 0
-	for nbgX := -1; nbgX < 2; nbgX++ {
-		for nbgY := -1; nbgY < 2; nbgY++ {
-			var col, row int
-
-			if x+nbgX < 0 || x+nbgX >= width || y+nbgY < 0 || y+nbgY >= height {
-				continue
-			}
-
-			col = x + nbgX
-			row = y + nbgY
-
-			if col == x && row == y {
-				continue
-			}
-
-			grid[y][x].Neighbors[idx] = grid[row][col]
-			grid[y][x].NeighborCount++
-			idx++
-		}
-	}
-}
-
-type Grid struct {
-	Data                   [][]*Cell
-	Width, Height, Density int
-}
-
-// Create new empty grid and allocate Data according to provided dimensions
-func NewGrid(width, height, density int) *Grid {
-	grid := &Grid{
-		Height:  height,
-		Width:   width,
-		Density: density,
-		Data:    make([][]*Cell, height),
-	}
-
-	for y := 0; y < height; y++ {
-		grid.Data[y] = make([]*Cell, width)
-		for x := 0; x < width; x++ {
-			grid.Data[y][x] = &Cell{}
-
-			if rand.Intn(density) == 1 {
-				grid.Data[y][x].State = 1
-			}
-		}
-	}
-
-	for y := 0; y < height; y++ {
-		for x := 0; x < width; x++ {
-			SetNeighbors(grid.Data, x, y, width, height)
-		}
-	}
-
-	return grid
-}
-
-type Game struct {
-	Width, Height, Cellsize, Density int
-	ScreenWidth, ScreenHeight        int
-	Grids                            []*Grid
-	Index                            int
-	Elapsed                          int64
-	TPG                              int64 // adjust game speed independently of TPS
-	Pause, Debug, Profile, Gridlines bool
-	Pixels                           []byte
-	OffScreen                        *ebiten.Image
-}
-
-func (game *Game) Layout(outsideWidth, outsideHeight int) (int, int) {
-	return game.ScreenWidth, game.ScreenHeight
-}
-
-// live console output of the grid
-func (game *Game) DebugDump() {
-	cmd := exec.Command("clear")
-	cmd.Stdout = os.Stdout
-	cmd.Run()
-
-	if game.Debug {
-		for y := 0; y < game.Height; y++ {
-			for x := 0; x < game.Width; x++ {
-				if game.Grids[game.Index].Data[y][x].State == 1 {
-					fmt.Print("XX")
-				} else {
-					fmt.Print("  ")
-				}
-			}
-			fmt.Println()
-		}
-	}
-	fmt.Printf("FPS: %0.2f\n", ebiten.ActualTPS())
-}
-
-func (game *Game) Init() {
-	// setup two grids, one for display, one for next state
-	grida := NewGrid(game.Width, game.Height, game.Density)
-	gridb := NewGrid(game.Width, game.Height, game.Density)
-
-	game.Grids = []*Grid{
-		grida,
-		gridb,
-	}
-
-	game.Pixels = make([]byte, game.ScreenWidth*game.ScreenHeight*4)
-
-	game.OffScreen = ebiten.NewImage(game.ScreenWidth, game.ScreenHeight)
-}
-
-// count the living neighbors of a cell
-func (game *Game) CountNeighbors(x, y int) uint8 {
-	return game.Grids[game.Index].Data[y][x].Count(x, y)
-}
-
-// the heart of the game
-func (game *Game) CheckRule(state uint8, neighbors uint8) uint8 {
-	var nextstate uint8
-
-	if state == 1 && neighbors == 3 {
-		nextstate = 1
-	} else if state == 1 && (neighbors == 2 || neighbors == 3) {
-		nextstate = 1
-	} else {
-		nextstate = 0
-	}
-
-	return nextstate
-}
-
-// we only  update the cells if  we are not  in pause state or  if the
-// game timer (TPG) is elapsed.
-func (game *Game) UpdateCells() {
-	if game.Pause {
-		return
-	}
-
-	if game.Elapsed < game.TPG {
-		game.Elapsed++
-		return
-	}
-
-	// next grid index. we only have to, so we just xor it
-	next := game.Index ^ 1
-
-	// calculate cell life state, this is the actual game of life
-	for y := 0; y < game.Height; y++ {
-		for x := 0; x < game.Width; x++ {
-			state := game.Grids[game.Index].Data[y][x].State
-			neighbors := game.CountNeighbors(x, y)
-
-			// actually apply the current rules
-			nextstate := game.CheckRule(state, neighbors)
-
-			// change state of current cell in next grid
-			game.Grids[next].Data[y][x].State = nextstate
-		}
-	}
-
-	// switch grid for rendering
-	game.Index ^= 1
-
-	game.Elapsed = 0
-
-	game.UpdatePixels()
-}
-
-func (game *Game) Update() error {
-	game.UpdateCells()
-
-	if inpututil.IsKeyJustPressed(ebiten.KeySpace) {
-		game.Pause = !game.Pause
-	}
-
-	return nil
-}
-
-/*
-*
-r, g, b := color(it)
-
-	78             p := 4 * (i + j*screenWidth)
-	79             gm.offscreenPix[p] = r
-	80             gm.offscreenPix[p+1] = g
-	81             gm.offscreenPix[p+2] = b
-	82             gm.offscreenPix[p+3] = 0xff
-*/
-func (game *Game) UpdatePixels() {
-	var col byte
-
-	gridx := 0
-	gridy := 0
-	idx := 0
-
-	for y := 0; y < game.ScreenHeight; y++ {
-		for x := 0; x < game.ScreenWidth; x++ {
-			gridx = x / game.Cellsize
-			gridy = y / game.Cellsize
-
-			col = 0xff
-			if game.Grids[game.Index].Data[gridy][gridx].State == 1 {
-				col = 0x0
-			}
-
-			if game.Gridlines {
-				if x%game.Cellsize == 0 || y%game.Cellsize == 0 {
-					col = 128
-				}
-			}
-
-			idx = 4 * (x + y*game.ScreenWidth)
-
-			game.Pixels[idx] = col
-			game.Pixels[idx+1] = col
-			game.Pixels[idx+2] = col
-			game.Pixels[idx+3] = 0xff
-
-			idx++
-		}
-	}
-
-	game.OffScreen.WritePixels(game.Pixels)
-}
-
-func (game *Game) Draw(screen *ebiten.Image) {
-	screen.DrawImage(game.OffScreen, nil)
-	game.DebugDump()
-}
-
-func main() {
-	size := 1500
-
-	game := &Game{
-		Width:     size,
-		Height:    size,
-		Cellsize:  4,
-		Density:   8,
-		TPG:       10,
-		Debug:     false,
-		Profile:   true,
-		Gridlines: false,
-	}
-
-	game.ScreenWidth = game.Width * game.Cellsize
-	game.ScreenHeight = game.Height * game.Cellsize
-
-	game.Init()
-
-	ebiten.SetWindowSize(game.ScreenWidth, game.ScreenHeight)
-	ebiten.SetWindowTitle("triangle conway's game of life")
-	ebiten.SetWindowResizingMode(ebiten.WindowResizingModeEnabled)
-
-	if game.Profile {
-		fd, err := os.Create("cpu.profile")
-		if err != nil {
-			log.Fatal(err)
-		}
-		defer fd.Close()
-
-		pprof.StartCPUProfile(fd)
-		defer pprof.StopCPUProfile()
-	}
-
-	if err := ebiten.RunGame(game); err != nil {
-		log.Fatal(err)
-	}
-}

various-tests/writepixel-pointers/go.mod

@@ -1,13 +0,0 @@
-module testgol
-
-go 1.22
-
-require (
-	github.com/ebitengine/gomobile v0.0.0-20240518074828-e86332849895 // indirect
-	github.com/ebitengine/hideconsole v1.0.0 // indirect
-	github.com/ebitengine/purego v0.7.0 // indirect
-	github.com/hajimehoshi/ebiten/v2 v2.7.4 // indirect
-	github.com/jezek/xgb v1.1.1 // indirect
-	golang.org/x/sync v0.7.0 // indirect
-	golang.org/x/sys v0.20.0 // indirect
-)

various-tests/writepixel-pointers/go.sum

@@ -1,14 +0,0 @@
-github.com/ebitengine/gomobile v0.0.0-20240518074828-e86332849895 h1:48bCqKTuD7Z0UovDfvpCn7wZ0GUZ+yosIteNDthn3FU=
-github.com/ebitengine/gomobile v0.0.0-20240518074828-e86332849895/go.mod h1:XZdLv05c5hOZm3fM2NlJ92FyEZjnslcMcNRrhxs8+8M=
-github.com/ebitengine/hideconsole v1.0.0 h1:5J4U0kXF+pv/DhiXt5/lTz0eO5ogJ1iXb8Yj1yReDqE=
-github.com/ebitengine/hideconsole v1.0.0/go.mod h1:hTTBTvVYWKBuxPr7peweneWdkUwEuHuB3C1R/ielR1A=
-github.com/ebitengine/purego v0.7.0 h1:HPZpl61edMGCEW6XK2nsR6+7AnJ3unUxpTZBkkIXnMc=
-github.com/ebitengine/purego v0.7.0/go.mod h1:ah1In8AOtksoNK6yk5z1HTJeUkC1Ez4Wk2idgGslMwQ=
-github.com/hajimehoshi/ebiten/v2 v2.7.4 h1:X+heODRQ3Ie9F9QFjm24gEZqQd5FSfR9XuT2XfHwgf8=
-github.com/hajimehoshi/ebiten/v2 v2.7.4/go.mod h1:H2pHVgq29rfm5yeQ7jzWOM3VHsjo7/AyucODNLOhsVY=
-github.com/jezek/xgb v1.1.1 h1:bE/r8ZZtSv7l9gk6nU0mYx51aXrvnyb44892TwSaqS4=
-github.com/jezek/xgb v1.1.1/go.mod h1:nrhwO0FX/enq75I7Y7G8iN1ubpSGZEiA3v9e9GyRFlk=
-golang.org/x/sync v0.7.0 h1:YsImfSBoP9QPYL0xyKJPq0gcaJdG3rInoqxTWbfQu9M=
-golang.org/x/sync v0.7.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
-golang.org/x/sys v0.20.0 h1:Od9JTbYCk261bKm4M/mw7AklTlFYIa0bIp9BgSm1S8Y=
-golang.org/x/sys v0.20.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=

various-tests/writepixel-pointers/main.go

@@ -1,306 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"log"
-	"math/rand"
-	"os"
-	"os/exec"
-	"runtime/pprof"
-	"unsafe"
-
-	"github.com/hajimehoshi/ebiten/v2"
-	"github.com/hajimehoshi/ebiten/v2/inpututil"
-)
-
-type Images struct {
-	Black, White *ebiten.Image
-}
-
-type Cell struct {
-	State         bool
-	Neighbors     [8]*Cell
-	NeighborCount int
-}
-
-func bool2int(b bool) int {
-	return int(*(*byte)(unsafe.Pointer(&b)))
-}
-
-func (cell *Cell) Count(x, y int) int {
-	sum := 0
-
-	for idx := 0; idx < cell.NeighborCount; idx++ {
-		sum += bool2int(cell.Neighbors[idx].State)
-	}
-
-	return sum
-}
-
-func SetNeighbors(grid [][]*Cell, x, y, width, height int) {
-	idx := 0
-	for nbgX := -1; nbgX < 2; nbgX++ {
-		for nbgY := -1; nbgY < 2; nbgY++ {
-			var col, row int
-
-			if x+nbgX < 0 || x+nbgX >= width || y+nbgY < 0 || y+nbgY >= height {
-				continue
-			}
-
-			col = x + nbgX
-			row = y + nbgY
-
-			if col == x && row == y {
-				continue
-			}
-
-			grid[y][x].Neighbors[idx] = grid[row][col]
-			grid[y][x].NeighborCount++
-			idx++
-		}
-	}
-}
-
-type Grid struct {
-	Data                   [][]*Cell
-	Width, Height, Density int
-}
-
-// Create new empty grid and allocate Data according to provided dimensions
-func NewGrid(width, height, density int) *Grid {
-	grid := &Grid{
-		Height:  height,
-		Width:   width,
-		Density: density,
-		Data:    make([][]*Cell, height),
-	}
-
-	for y := 0; y < height; y++ {
-		grid.Data[y] = make([]*Cell, width)
-		for x := 0; x < width; x++ {
-			grid.Data[y][x] = &Cell{}
-
-			if rand.Intn(density) == 1 {
-				grid.Data[y][x].State = true
-			}
-		}
-	}
-
-	for y := 0; y < height; y++ {
-		for x := 0; x < width; x++ {
-			SetNeighbors(grid.Data, x, y, width, height)
-		}
-	}
-
-	return grid
-}
-
-type Game struct {
-	Width, Height, Cellsize, Density int
-	ScreenWidth, ScreenHeight        int
-	Grids                            []*Grid
-	Index                            int
-	Elapsed                          int64
-	TPG                              int64 // adjust game speed independently of TPS
-	Pause, Debug, Profile, Gridlines bool
-	Pixels                           []byte
-	OffScreen                        *ebiten.Image
-}
-
-func (game *Game) Layout(outsideWidth, outsideHeight int) (int, int) {
-	return game.ScreenWidth, game.ScreenHeight
-}
-
-// live console output of the grid
-func (game *Game) DebugDump() {
-	cmd := exec.Command("clear")
-	cmd.Stdout = os.Stdout
-	cmd.Run()
-
-	if game.Debug {
-		for y := 0; y < game.Height; y++ {
-			for x := 0; x < game.Width; x++ {
-				if game.Grids[game.Index].Data[y][x].State {
-					fmt.Print("XX")
-				} else {
-					fmt.Print("  ")
-				}
-			}
-			fmt.Println()
-		}
-	}
-	fmt.Printf("FPS: %0.2f\n", ebiten.ActualTPS())
-}
-
-func (game *Game) Init() {
-	// setup two grids, one for display, one for next state
-	grida := NewGrid(game.Width, game.Height, game.Density)
-	gridb := NewGrid(game.Width, game.Height, game.Density)
-
-	game.Grids = []*Grid{
-		grida,
-		gridb,
-	}
-
-	game.Pixels = make([]byte, game.ScreenWidth*game.ScreenHeight*4)
-
-	game.OffScreen = ebiten.NewImage(game.ScreenWidth, game.ScreenHeight)
-}
-
-// count the living neighbors of a cell
-func (game *Game) CountNeighbors(x, y int) int {
-	return game.Grids[game.Index].Data[y][x].Count(x, y)
-}
-
-// the heart of the game
-func (game *Game) CheckRule(state bool, neighbors int) bool {
-	var nextstate bool
-
-	if state && neighbors == 3 {
-		nextstate = true
-	} else if state && (neighbors == 2 || neighbors == 3) {
-		nextstate = true
-	} else {
-		nextstate = false
-	}
-
-	return nextstate
-}
-
-// we only  update the cells if  we are not  in pause state or  if the
-// game timer (TPG) is elapsed.
-func (game *Game) UpdateCells() {
-	if game.Pause {
-		return
-	}
-
-	if game.Elapsed < game.TPG {
-		game.Elapsed++
-		return
-	}
-
-	// next grid index. we only have to, so we just xor it
-	next := game.Index ^ 1
-
-	// calculate cell life state, this is the actual game of life
-	for y := 0; y < game.Height; y++ {
-		for x := 0; x < game.Width; x++ {
-			state := game.Grids[game.Index].Data[y][x].State
-			neighbors := game.CountNeighbors(x, y)
-
-			// actually apply the current rules
-			nextstate := game.CheckRule(state, neighbors)
-
-			// change state of current cell in next grid
-			game.Grids[next].Data[y][x].State = nextstate
-		}
-	}
-
-	// switch grid for rendering
-	game.Index ^= 1
-
-	game.Elapsed = 0
-
-	game.UpdatePixels()
-}
-
-func (game *Game) Update() error {
-	game.UpdateCells()
-
-	if inpututil.IsKeyJustPressed(ebiten.KeySpace) {
-		game.Pause = !game.Pause
-	}
-
-	return nil
-}
-
-/*
-*
-r, g, b := color(it)
-
-	78             p := 4 * (i + j*screenWidth)
-	79             gm.offscreenPix[p] = r
-	80             gm.offscreenPix[p+1] = g
-	81             gm.offscreenPix[p+2] = b
-	82             gm.offscreenPix[p+3] = 0xff
-*/
-func (game *Game) UpdatePixels() {
-	var col byte
-
-	gridx := 0
-	gridy := 0
-	idx := 0
-
-	for y := 0; y < game.ScreenHeight; y++ {
-		for x := 0; x < game.ScreenWidth; x++ {
-			gridx = x / game.Cellsize
-			gridy = y / game.Cellsize
-
-			col = 0xff
-			if game.Grids[game.Index].Data[gridy][gridx].State {
-				col = 0x0
-			}
-
-			if game.Gridlines {
-				if x%game.Cellsize == 0 || y%game.Cellsize == 0 {
-					col = 128
-				}
-			}
-
-			idx = 4 * (x + y*game.ScreenWidth)
-
-			game.Pixels[idx] = col
-			game.Pixels[idx+1] = col
-			game.Pixels[idx+2] = col
-			game.Pixels[idx+3] = 0xff
-
-			idx++
-		}
-	}
-
-	game.OffScreen.WritePixels(game.Pixels)
-}
-
-func (game *Game) Draw(screen *ebiten.Image) {
-	screen.DrawImage(game.OffScreen, nil)
-	game.DebugDump()
-}
-
-func main() {
-	size := 1500
-
-	game := &Game{
-		Width:     size,
-		Height:    size,
-		Cellsize:  4,
-		Density:   8,
-		TPG:       10,
-		Debug:     false,
-		Profile:   true,
-		Gridlines: false,
-	}
-
-	game.ScreenWidth = game.Width * game.Cellsize
-	game.ScreenHeight = game.Height * game.Cellsize
-
-	game.Init()
-
-	ebiten.SetWindowSize(game.ScreenWidth, game.ScreenHeight)
-	ebiten.SetWindowTitle("triangle conway's game of life")
-	ebiten.SetWindowResizingMode(ebiten.WindowResizingModeEnabled)
-
-	if game.Profile {
-		fd, err := os.Create("cpu.profile")
-		if err != nil {
-			log.Fatal(err)
-		}
-		defer fd.Close()
-
-		pprof.StartCPUProfile(fd)
-		defer pprof.StopCPUProfile()
-	}
-
-	if err := ebiten.RunGame(game); err != nil {
-		log.Fatal(err)
-	}
-}

various-tests/writepixel/main.go

@@ -238,7 +238,35 @@ func (game *Game) Draw(screen *ebiten.Image) {
 }
 
 func main() {
-	size := 1500
+	//x := 1
+	//y := 0
+	col := 1 >> 0xff
+
+	fmt.Printf("col: %d\n", col)
+
+	x := 1
+	y := 2
+	c := 4
+
+	xm := x & (c - 1)
+	ym := y & (c - 1)
+
+	fmt.Println(xm & ym)
+
+	a := 1
+	b := 1
+	//gen := 100
+	hist := 0
+	for gen := 0; gen < 50; gen++ {
+		fmt.Println((a ^ (1 ^ b)) * (gen - hist))
+		if gen == 25 {
+			a = 0
+		}
+	}
+}
+
+func _main() {
+	size := 800
 
 	game := &Game{
 		Width:     size,
@@ -247,7 +275,7 @@ func main() {
 		Density:   8,
 		TPG:       10,
 		Debug:     false,
-		Profile:   true,
+		Profile:   false,
 		Gridlines: false,
 	}