Add examples/maze-word/main.go

Signed-off-by: Glenn Lewis <[email protected]>

examples/maze-word/main.go

@@ -0,0 +1,73 @@
+// maze-word renders a word in white-on-black.
+package main
+
+import (
+	"flag"
+	"fmt"
+	"image/color"
+	"log"
+
+	. "github.com/gmlewis/go-fonts/fonts"
+	_ "github.com/gmlewis/go-fonts/fonts/modak"
+)
+
+var (
+	fontName = flag.String("font", "modak", "Font to use")
+	word     = flag.String("w", "", "Word to render")
+	width    = flag.Int("width", 850, "Image width")
+	height   = flag.Int("height", 1100, "Image height")
+	outFmt   = flag.String("out", "%v-%v-%v.png", "Output image filename format string")
+	shift    = flag.Float64("shift", 0.1, "Percentage of glyph width to shift")
+)
+
+func main() {
+	flag.Parse()
+
+	if *word == "" {
+		*word = "Sample"
+	}
+
+	m1, err := Text(0, 0, 1, 1, *word, *fontName, nil)
+	check(err)
+	m1.Foreground = color.RGBA{R: 255, G: 255, B: 255, A: 255}
+	m1.Background = color.RGBA{R: 0, G: 0, B: 0, A: 255}
+
+	shiftAmounts := map[int]float64{}
+	var totalShift float64
+	for i, gi := range m1.Info {
+		if i == 0 {
+			continue
+		}
+		log.Printf("gi #%v '%c': mbb=%v", i+1, gi.Glyph, gi.MBB)
+		sw := -0.1 * (gi.MBB.Max[0] - gi.MBB.Min[0])
+		totalShift += sw
+		shiftAmounts[i] = totalShift
+		log.Printf("shiftAmounts[%v] = %v", i, totalShift)
+	}
+	for i, p := range m1.Polygons {
+		log.Printf("poly #%v: rune[%v], mbb=%v", i+1, p.RuneIndex, p.MBB)
+		sw := shiftAmounts[p.RuneIndex]
+		p.MBB.Min[0] += sw
+		p.MBB.Min[1] += sw
+		for j := range p.Pts {
+			p.Pts[j][0] += sw
+		}
+	}
+
+	all := []*Render{
+		m1,
+	}
+
+	out := fmt.Sprintf(*outFmt, *width, *word, *fontName)
+	if err := SavePNG(out, *width, *height, all...); err != nil {
+		log.Fatal(err)
+	}
+
+	fmt.Println("Done.")
+}
+
+func check(err error) {
+	if err != nil {
+		log.Fatal(err)
+	}
+}