nerd font support

cmd/calibrate.go

@@ -6,6 +6,7 @@ package cmd
 import (
 	"fmt"
 
+	"github.com/LorenzHohermuth/cli-shapes/internal/generated"
 	"github.com/LorenzHohermuth/cli-shapes/internal/nerdfont"
 	"github.com/LorenzHohermuth/cli-shapes/pkg/canvas"
 	"github.com/LorenzHohermuth/cli-shapes/pkg/image"
@@ -24,10 +25,14 @@ This application is a tool to generate the needed files
 to quickly create a Cobra application.`,
 	Run: func(cmd *cobra.Command, args []string) {
 		icons := nerdfont.ParseFile("./nerd-font-icons")
+		f := generated.CreatFile("nerdFont")
+		defer generated.CloseFile(f)
 		for i, v := range icons {
 			fmt.Printf("%g %% %s\n", (float64(i) + 1) / float64(len(icons)) * 100, v)
 			path := canvas.CharacterAnalyse(v)
-			image.ImageToPixles(path)
+			img := image.ImageToPixles(path)
+			line := fmt.Sprintf("\t\"%s\":%g,", v, image.GetBrightness(img))
+			generated.AddToFile(line, f)
 		}
 	},
 }

cmd/draw.go

@@ -7,7 +7,7 @@ import (
 	"fmt"
 
 	"github.com/LorenzHohermuth/cli-shapes/internal/color"
-	"github.com/LorenzHohermuth/cli-shapes/internal/renderer"
+	"github.com/LorenzHohermuth/cli-shapes/internal/generated"
 	"github.com/LorenzHohermuth/cli-shapes/pkg/image"
 	"github.com/spf13/cobra"
 )
@@ -31,7 +31,7 @@ to quickly create a Cobra application.`,
 			for _, y := range pix {
 				for _, x := range y {
 					color, non := color.GetTrueColor([3]int{x.R, x.G, x.B})
-					char := renderer.GetChar(x.Brightness())
+					char := generated.GetChar(x.Brightness())
 					s += color + char + non
 				}
 				s += "\n"

internal/generated/generated.go

@@ -0,0 +1,50 @@
+package generated
+
+import (
+	"math"
+	"math/rand/v2"
+	"os"
+)
+
+func CreatFile(name string) *os.File { 
+	fileName := "internal/generated/gen-" +  name + ".go"
+	_ = os.Remove(fileName)
+	f, err := os.Create(fileName)
+	check(err)
+	_, err = f.WriteString("package generated\n\nvar " + name + " = map[string]float64{\n")
+	check(err)
+	return f
+}
+
+func AddToFile(line string, file *os.File) {
+	_, err := file.WriteString(line + "\n")
+	check(err)
+}
+
+func CloseFile(f *os.File) {
+	_, err := f.WriteString("}")
+	check(err)
+	f.Close()
+}
+
+func check(err error) {
+	if err != nil {
+		panic(err)
+	}
+}
+
+func GetChar(brightness float64) string {
+	chars := []string{" "}
+	var delta float64 = 1
+	for k, v := range nerdFont {
+		otherDelta := math.Abs(v - brightness)
+		if (otherDelta < delta) {
+			delta = otherDelta
+			chars = []string{k}
+		}
+		if (otherDelta == delta) {
+			chars = append(chars, k)
+		}
+	}
+	return chars[rand.IntN(len(chars))]
+}

main.go

@@ -5,10 +5,8 @@ package main
 
 import (
 	"github.com/LorenzHohermuth/cli-shapes/cmd"
-	"github.com/LorenzHohermuth/cli-shapes/pkg/canvas"
 )
 
 func main() {
-	canvas.CharacterAnalyse("")
 	cmd.Execute()
 }

pkg/image/image.go

@@ -42,3 +42,22 @@ func check(err error) {
 		panic(err)
 	}
 }
+
+func GetBrightness(img [][]Pixel) float64 {
+	amountOfPixels := 0
+	avgR, avgG, avgB, avgA := 0, 0, 0, 0
+	for _, y := range img {
+		for _, x := range y {
+			avgR += x.R
+			avgG += x.G
+			avgB += x.B
+			avgA += x.A
+			amountOfPixels++
+		}
+	}
+
+	return Pixel{avgR / amountOfPixels,
+		avgG / amountOfPixels,
+		avgB / amountOfPixels,
+		avgA / amountOfPixels}.Brightness()
+}