falloutBot/go-mc
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generate the big map

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This commit is contained in:
Tnze
2021-03-13 12:19:55 +08:00
parent c0c03e25e0
commit 8dbb96cdfd
1 changed files with 20 additions and 11 deletions
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31
examples/genmaps/genmaps.go
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@ -62,14 +62,8 @@ func main() {
}
rs[pos] = r
}
// To close mca files
defer func() {
for pos, r := range rs {
if err := r.Close(); err != nil {
log.Printf("Close r.%d.%d.mca error: %v", pos[0], pos[1], err)
}
}
}()
bigPicture := image.NewRGBA(image.Rect(min[0]*512, min[1]*512, max[0]*512+512, max[1]*512+512))
var bigWg sync.WaitGroup
// draw columns
for pos, r := range rs {
img := image.NewRGBA(image.Rect(0, 0, 32*16, 32*16))
@ -110,14 +104,29 @@ func main() {
log.Printf("Read sector (%d.%d) error: %v", x, z, err)
}
wg.Add(1)
c <- task{data: data, pos: [2]int{x, z}}
c <- task{data: data, pos: [2]int{z, x}}
}
}
close(c)
wg.Wait()
savePng(img, fmt.Sprintf("r.%d.%d.png", pos[0], pos[1]))
// Save pictures
bigWg.Add(1)
log.Print("Draw: ", pos)
go func(img image.Image, pos [2]int) {
savePng(img, fmt.Sprintf("r.%d.%d.png", pos[0], pos[1]))
draw.Draw(
bigPicture, image.Rect(pos[0]*512, pos[1]*512, pos[0]*512+512, pos[1]*512+512),
img, image.Pt(0, 0), draw.Src,
)
bigWg.Done()
}(img, pos)
// To close mca files
if err := r.Close(); err != nil {
log.Printf("Close r.%d.%d.mca error: %v", pos[0], pos[1], err)
}
}
bigWg.Wait()
savePng(bigPicture, "maps.png")
}
func drawColumn(column *save.Column) (img *image.RGBA) {
@ -173,7 +182,7 @@ func drawSection(s *save.Chunk, img *image.RGBA) {
}
}
c := colors[block.ByID[bid].ID]
layerImg.Set(i/16, i%16, c)
layerImg.Set(i%16, i/16, c)
}
draw.Draw(
img, image.Rect(0, 0, 16, 16),