/
main.go
115 lines (97 loc) · 2.53 KB
/
main.go
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package main
import (
"flag"
"github.com/jbaikge/ingress-maplinks/delaunay"
"image"
"image/color"
"log"
"os"
_ "image/png"
)
var (
borderColor = flag.Int("border", 16750848, "Portal border color (Default: #FF9900)")
size = flag.String("size", "16", "Portal diameter")
portals = make([]image.Rectangle, 0, 512)
)
func main() {
flag.Parse()
log.SetFlags(log.Lmicroseconds)
targetColor := color.RGBA{
R: uint8((*borderColor & 0xFF0000) >> 16),
G: uint8((*borderColor & 0x00FF00) >> 8),
B: uint8((*borderColor & 0x0000FF)),
}
log.Printf("Target color: %s", targetColor)
inFilename, outFilename := flag.Arg(0), flag.Arg(1)
in, err := os.Open(inFilename)
if err != nil {
log.Fatal(err)
}
defer in.Close()
imgIn, _, err := image.Decode(in)
if err != nil {
log.Fatal(err)
}
bounds := imgIn.Bounds()
imgOut := NewSVG(bounds)
imgOut.Elements = append(imgOut.Elements, Image{Width: bounds.Dx(), Height: bounds.Dy(), Href: inFilename})
log.Printf("Searching image for portals")
for y := bounds.Min.Y; y < bounds.Max.Y; y++ {
for x := bounds.Min.X; x < bounds.Max.X; x++ {
if colorEq(imgIn.At(x, y), targetColor) {
addPortal(image.Pt(x, y))
}
}
}
log.Printf("Found %d portals", len(portals))
verticies := make([]image.Point, len(portals))
for i, p := range portals {
//imgOut.AddPortal(p)
verticies[i] = image.Pt(p.Min.X+p.Dx()/2, p.Min.Y+p.Dy()/2)
}
log.Println("Triangulating fields")
fields := delaunay.Triangulate(verticies)
log.Printf("Found %d fields", len(fields))
log.Printf("Drawing links")
drawn := make(map[string]map[string]bool, len(fields)/3)
drawnCount := 0
for i := range fields {
for j, edges := 0, fields[i].Edges(); j < len(edges); j += 2 {
a, b := edges[j], edges[j+1]
aS, bS := a.String(), b.String()
y, ok := drawn[aS]
if !ok {
drawn[aS] = make(map[string]bool, len(fields)/3)
y = drawn[aS]
}
if y[bS] {
continue
}
imgOut.AddLink(*a, *b)
drawn[aS][bS] = true
drawnCount++
}
}
log.Printf("Drew %d links", drawnCount)
log.Printf("Saving to %s", outFilename)
out, err := os.OpenFile(outFilename, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, 0644)
if err != nil {
log.Fatal(err)
}
defer out.Close()
imgOut.WriteTo(out)
log.Printf("Done")
}
func addPortal(p image.Point) {
for _, portal := range portals {
if p.In(portal) {
return
}
}
portals = append(portals, image.Rect(p.X-7, p.Y, p.X+9, p.Y+16))
}
func colorEq(a, b color.Color) bool {
aR, aG, aB, _ := a.RGBA()
bR, bG, bB, _ := b.RGBA()
return aR == bR && aG == bG && aB == bB
}