refactorings + basis of script editor.

cmd/generate-k-image/main.go

@@ -0,0 +1,47 @@
+package main
+
+import (
+	"git.aiterp.net/lucifer3/server/internal/color"
+	"image"
+	color2 "image/color"
+	"image/png"
+	"math"
+	"os"
+)
+
+func main() {
+	img := image.NewRGBA(image.Rect(0, 0, 1000, 1000))
+	for y := 0; y < 1000; y += 1 {
+		for x := 0; x < 1000; x += 1 {
+			vecX := float64(x-500) / 500.0
+			vecY := float64(y-500) / 500.0
+			dist := math.Sqrt(vecX*vecX + vecY*vecY)
+			angle := math.Mod((math.Atan2(vecY/dist, vecX/dist)*(180/math.Pi))+360+90, 360)
+
+			if dist >= 0.9 && dist < 1 && angle > 2.5 && angle < 357.5 {
+				k := 1000 + int(11000*((angle-2.5)/355))
+				c := color.Color{K: &k}
+				rgb, _ := c.ToRGB()
+				img.Set(x, y, color2.RGBA{
+					R: uint8(rgb.RGB.Red * 255.0),
+					G: uint8(rgb.RGB.Green * 255.0),
+					B: uint8(rgb.RGB.Blue * 255.0),
+					A: 255,
+				})
+			} else if dist < 0.85 {
+				rgb := (color.HueSat{Hue: math.Mod(angle+180, 360), Sat: dist / 0.85}).ToRGB()
+
+				img.Set(x, y, color2.RGBA{
+					R: uint8(rgb.Red * 255.0),
+					G: uint8(rgb.Green * 255.0),
+					B: uint8(rgb.Blue * 255.0),
+					A: 255,
+				})
+			} else {
+				img.Set(x, y, color2.RGBA{R: 0, G: 0, B: 0, A: 0})
+			}
+		}
+	}
+
+	_ = png.Encode(os.Stdout, img)
+}