chore: cleanup

fourBitSquares.go

@@ -0,0 +1,50 @@
+package main
+
+import (
+	"strconv"
+
+	"github.com/fogleman/gg"
+)
+
+/*
+8x8 square of 100x100 px squares
+
+First 6 characters of the hash are the color
+For the next 8 characters each character
+represents 4 bits of a row being on or off.
+The image is then mirrored to the right side.
+
+9d26bf3cf1fb2b2f02d4a2013333f4fcd551cb2e
+9d26bf -> color
+      3 -> row1
+       c -> row2
+         ...
+             b -> row8
+3 = 0 0 1 1
+c = 1 1 0 0
+...
+b = 1 0 1 1
+*/
+func FourBitSquares(dc *gg.Context, username string) {
+	hash := hash(username)
+
+	colorString := hash[0:6]
+	r, g, b := rgbFromHex(colorString)
+	dc.SetRGB255(r, g, b)
+
+	for i, character := range hash[6:14] {
+		integer, _ := strconv.ParseUint(string(character), 16, 4)
+		for j := range 4 {
+			on := hasBit(integer, j)
+
+			dc.DrawRectangle(float64(j * 100), float64(i * 100), 100, 100)
+			dc.DrawRectangle(700 - float64(j * 100), float64(i * 100), 100, 100)
+			if !on {
+				dc.SetRGB255(r, g, b)
+			} else {
+				dc.SetRGB255(255, 255, 255)
+			}
+			dc.Fill()
+		}
+	}
+}