package model import ( "bytes" "fmt" "image" "image/png" "io/ioutil" "os" "path/filepath" "regexp" "strconv" "strings" _ "golang.org/x/image/bmp" ) func (w *DfWorld) LoadMap() { w.LoadDimensions() path := "" files, err := filepath.Glob(strings.ReplaceAll(w.FilePath, "-legends.xml", "-world_map.*")) if err == nil && len(files) > 0 { path = files[len(files)-1] } files, err = filepath.Glob(strings.ReplaceAll(w.FilePath, "-legends.xml", "-detailed.*")) if err == nil && len(files) > 0 { path = files[len(files)-1] } if path == "" { return } mapImage, err := os.Open(path) if err != nil { fmt.Println(err) return } fmt.Println("Found Map", path) img, format, err := image.Decode(mapImage) if err != nil { fmt.Println(err) return } fmt.Println("loaded img", format) buf := new(bytes.Buffer) err = png.Encode(buf, img) if err != nil { fmt.Println(err) return } w.MapData = buf.Bytes() w.MapReady = true } func (w *DfWorld) LoadDimensions() { files, err := filepath.Glob(filepath.Join(filepath.Dir(w.FilePath), "*-world_gen_param.txt")) if err != nil { fmt.Println(err) return } path := "" for _, f := range files { prefix := filepath.Base(f)[:len(filepath.Base(f))-len("world_gen_param.txt")] if strings.HasPrefix(filepath.Base(w.FilePath), prefix) { path = f break } } if path == "" { return } fmt.Println("Found Worldgen", path) content, err := ioutil.ReadFile(path) if err != nil { return } r := regexp.MustCompile(`\[DIM:(\d+):(\d+)\]`) result := r.FindAllStringSubmatch(string(content), 1) if result == nil { return } w.Width, _ = strconv.Atoi(result[0][2]) w.Height, _ = strconv.Atoi(result[0][1]) } type Coord struct { X, Y int } func Coords(s string) []Coord { var coords []Coord for _, c := range strings.Split(s, "|") { if c == "" { continue } d := strings.Split(c, ",") x, _ := strconv.Atoi(d[0]) y, _ := strconv.Atoi(d[1]) coords = append(coords, Coord{X: x, Y: y}) } return coords } func maxCoords(coords []Coord) Coord { var max Coord for _, c := range coords { if c.X > max.X { max.X = c.X } if c.Y > max.Y { max.Y = c.Y } } return max } func (r *Region) Outline() []Coord { var outline []Coord if r.Coords == "" { return outline } // if (cacheOutline != null) // return cacheOutline; /* draw the region in a matrix */ coords := Coords(r.Coords) max := maxCoords(coords) var region = make([][]bool, max.X+3) for i := range region { region[i] = make([]bool, max.Y+3) } for _, c := range coords { region[c.X+1][c.Y+1] = true } var curdir, prevdir rune curdir = 'n' if len(coords) == 1 || coords[0].X == coords[1].X-1 { curdir = 'e' } x0 := coords[0].X + 1 y0 := coords[0].Y + 1 x := x0 y := y0 /* follow the outline by keeping the right hand inside */ Loop: for { if !(x != x0 || y != y0 || prevdir == 0) { break Loop } prevdir = curdir switch { case curdir == 'n' && y > 1: y -= 1 if region[x-1][y-1] { curdir = 'w' } else if !region[x][y-1] { curdir = 'e' } case curdir == 's' && y < max.Y+2: y += 1 if region[x][y] { curdir = 'e' } else if !region[x-1][y] { curdir = 'w' } case curdir == 'w' && x > 1: x -= 1 if region[x-1][y] { curdir = 's' } else if !region[x-1][y-1] { curdir = 'n' } case curdir == 'e' && x < max.X+2: x += 1 if region[x][y-1] { curdir = 'n' } else if !region[x][y] { curdir = 's' } } if curdir != prevdir { /* change of direction: record point */ outline = append(outline, Coord{X: x - 1, Y: y - 1}) if len(outline) > 256*10 { break Loop } } } return outline } func (x *WorldConstruction) Line() []Coord { return Coords(x.Coords) }