removed invert option, added new standard theme (orange on grey)

TODO.md

@@ -14,6 +14,8 @@
   WritePixels:   https://github.com/TLINDEN/testgol/tree/wrpixels
 https://www.tasnimzotder.com/blog/optimizing-game-of-life-algorithm
 
+- show gridlines menu has no effect of grid was enabled with -g
+
 - Speed
   https://conwaylife.com/forums/viewtopic.php?f=7&t=3237
   

src/config.go

@@ -18,7 +18,7 @@ type Config struct {
 	Width, Height, Cellsize, Density         int // measurements
 	ScreenWidth, ScreenHeight                int
 	TPG                                      int      // ticks per generation/game speed, 1==max
-	Debug, Empty, Invert, Paused, Markmode, Drawmode bool     // game modi
+	Debug, Empty, Paused, Markmode, Drawmode bool     // game modi
 	ShowEvolution, ShowGrid, RunOneStep      bool     // flags
 	Rule                                     *Rule    // which rule to use, default: B3/S23
 	RLE                                      *rle.RLE // loaded GOL pattern from RLE file
@@ -52,7 +52,7 @@ const (
 	DEFAULT_CELLSIZE    = 4
 	DEFAULT_ZOOMFACTOR  = 150
 	DEFAULT_GEOM        = "640x384"
-	DEFAULT_THEME       = "light" // inverse => "dark"
+	DEFAULT_THEME       = "standard" // "light" // inverse => "dark"
 )
 
 const KEYBINDINGS string = `
@@ -229,8 +229,7 @@ func ParseCommandline() (*Config, error) {
 	pflag.BoolVarP(&config.Empty, "empty", "e", false, "start with an empty screen")
 
 	// style
-	pflag.BoolVarP(&config.Invert, "invert", "i", false, "invert colors (dead cell: black)")
-	pflag.StringVarP(&config.Theme, "theme", "T", "light", "color theme: dark, light (default: light)")
+	pflag.StringVarP(&config.Theme, "theme", "T", DEFAULT_THEME, "color theme: standard, dark, light (default: standard)")
 
 	pflag.BoolVarP(&config.ShowEvolution, "show-evolution", "s", false, "show evolution traces")
 	pflag.BoolVarP(&config.Wrap, "wrap-around", "w", false, "wrap around grid mode")
@@ -260,10 +259,6 @@ func ParseCommandline() (*Config, error) {
 
 	config.SetupCamera()
 
-	if config.Theme == "light" && config.Invert {
-		config.Theme = "dark"
-	}
-
 	config.ThemeManager = NewThemeManager(config.Theme, config.Cellsize)
 
 	//repr.Println(config)
@@ -278,21 +273,6 @@ func (config *Config) ToggleDebugging() {
 	config.Debug = !config.Debug
 }
 
-func (config *Config) ToggleInvert() {
-	config.Invert = !config.Invert
-
-	switch config.ThemeManager.GetCurrentThemeName() {
-	case "dark":
-		config.ThemeManager.SetCurrentTheme("light")
-	case "light":
-		config.ThemeManager.SetCurrentTheme("dark")
-	default:
-		fmt.Println("unable to invert custom theme, only possible with dark and light themes.")
-	}
-
-	config.RestartCache = true
-}
-
 func (config *Config) SwitchTheme(theme string) {
 	config.ThemeManager.SetCurrentTheme(theme)
 }

src/options.go

@@ -93,12 +93,6 @@ func (scene *SceneOptions) Init() {
 		})
 	scene.SetInitialValue(debugging, scene.Config.Debug)
 
-	invert := NewCheckbox("Invert",
-		func(args *widget.CheckboxChangedEventArgs) {
-			scene.Config.ToggleInvert()
-		})
-	scene.SetInitialValue(invert, scene.Config.Invert)
-
 	gridlines := NewCheckbox("Show grid lines",
 		func(args *widget.CheckboxChangedEventArgs) {
 			scene.Config.ToggleGridlines()
@@ -138,7 +132,6 @@ func (scene *SceneOptions) Init() {
 
 	rowContainer.AddChild(pause)
 	rowContainer.AddChild(debugging)
-	rowContainer.AddChild(invert)
 	rowContainer.AddChild(gridlines)
 	rowContainer.AddChild(evolution)
 	rowContainer.AddChild(wrap)

src/play.go

@@ -3,7 +3,6 @@ package main
 import (
 	"fmt"
 	"image"
-	"image/color"
 	"log"
 	"unsafe"
 
@@ -706,15 +705,3 @@ func (scene *ScenePlay) CountNeighbors(x, y int) int {
 
 	return sum
 }
-
-// fill a cell with the given color
-func FillCell(tile *ebiten.Image, cellsize int, col color.RGBA) {
-	vector.DrawFilledRect(
-		tile,
-		float32(1),
-		float32(1),
-		float32(cellsize),
-		float32(cellsize),
-		col, false,
-	)
-}

src/theme.go

@@ -1,9 +1,12 @@
 package main
 
 import (
+	"fmt"
 	"image/color"
+	"log"
 
 	"github.com/hajimehoshi/ebiten/v2"
+	"github.com/hajimehoshi/ebiten/v2/vector"
 )
 
 // Color definitions. ColLife could be black or white depending on theme
@@ -28,18 +31,19 @@ type Theme struct {
 }
 
 // create a new theme
-func NewTheme(life, dead, old, age1, age2, age3, age4, grid color.RGBA, cellsize int, name string) Theme {
+func NewTheme(life, dead, old, age1, age2, age3, age4, grid string,
+	cellsize int, name string) Theme {
 	theme := Theme{
 		Name: name,
 		Colors: map[int]color.RGBA{
-			ColLife: life,
-			ColDead: dead,
-			ColGrid: grid,
-			ColAge1: age1,
-			ColAge2: age2,
-			ColAge3: age3,
-			ColAge4: age4,
-			ColOld:  old,
+			ColLife: HexColor2RGBA(life),
+			ColDead: HexColor2RGBA(dead),
+			ColGrid: HexColor2RGBA(grid),
+			ColAge1: HexColor2RGBA(age1),
+			ColAge2: HexColor2RGBA(age2),
+			ColAge3: HexColor2RGBA(age3),
+			ColAge4: HexColor2RGBA(age4),
+			ColOld:  HexColor2RGBA(old),
 		},
 	}
 
@@ -72,27 +76,40 @@ type ThemeManager struct {
 // Manager is used to easily switch themes from cli or menu
 func NewThemeManager(initial string, cellsize int) ThemeManager {
 	light := NewTheme(
-		color.RGBA{0, 0, 0, 0xff},       // life
-		color.RGBA{200, 200, 200, 0xff}, // dead
-		color.RGBA{255, 30, 30, 0xff},   // old
-		color.RGBA{255, 195, 97, 0xff},  // age 1..4
-		color.RGBA{255, 211, 140, 0xff},
-		color.RGBA{255, 227, 181, 0xff},
-		color.RGBA{255, 240, 224, 0xff},
-		color.RGBA{128, 128, 128, 0xff}, // grid
+		"000000", // life
+		"c8c8c8", // dead
+		"ff1e1e", // old
+		"ffc361", // age 1..4
+		"ffd38c",
+		"ffe3b5",
+		"fff0e0",
+		"808080", // grid
 		cellsize,
 		"light",
 	)
 
 	dark := NewTheme(
-		color.RGBA{200, 200, 200, 0xff}, // life
-		color.RGBA{0, 0, 0, 0xff},       // dead
-		color.RGBA{255, 30, 30, 0xff},   // old
-		color.RGBA{82, 38, 0, 0xff},     // age 1..4
-		color.RGBA{66, 35, 0, 0xff},
-		color.RGBA{43, 27, 0, 0xff},
-		color.RGBA{25, 17, 0, 0xff},
-		color.RGBA{128, 128, 128, 0xff}, // grid
+		"c8c8c8", // life
+		"000000", // dead
+		"ff1e1e", // old
+		"522600", // age 1..4
+		"422300",
+		"2b1b00",
+		"191100",
+		"808080", // grid
+		cellsize,
+		"dark",
+	)
+
+	standard := NewTheme(
+		"e15f0b", // life
+		"5a5a5a", // dead
+		"e13c0b", // old
+		"7b5e4b", // age 1..4
+		"735f52",
+		"6c6059",
+		"635d59",
+		"808080", // grid
 		cellsize,
 		"dark",
 	)
@@ -101,6 +118,7 @@ func NewThemeManager(initial string, cellsize int) ThemeManager {
 		Themes: map[string]Theme{
 			"dark":     dark,
 			"light":    light,
+			"standard": standard,
 		},
 		Theme: initial,
 	}
@@ -121,3 +139,26 @@ func (manager *ThemeManager) SetCurrentTheme(theme string) {
 		manager.Theme = theme
 	}
 }
+
+// fill a cell with the given color
+func FillCell(tile *ebiten.Image, cellsize int, col color.RGBA) {
+	vector.DrawFilledRect(
+		tile,
+		float32(1),
+		float32(1),
+		float32(cellsize),
+		float32(cellsize),
+		col, false,
+	)
+}
+
+func HexColor2RGBA(hex string) color.RGBA {
+	var r, g, b uint8
+
+	_, err := fmt.Sscanf(hex, "%02x%02x%02x", &r, &g, &b)
+	if err != nil {
+		log.Fatalf("failed to parse hex color: %s", err)
+	}
+
+	return color.RGBA{r, g, b, 255}
+}