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// replace replaces all iron blocks with diamond blocks.
package main
import (
"flag"
"fmt"
"github.com/kch42/gomcmap/mcmap"
"os"
)
func main() {
path := flag.String("path", "", "Path to region directory")
flag.Parse()
if *path == "" {
flag.Usage()
os.Exit(1)
}
region, err := mcmap.OpenRegion(*path, true)
if err != nil {
fmt.Fprintf(os.Stderr, "Could not open region: %s\n", err)
os.Exit(1)
}
chunkLoop:
for chunkPos := range region.AllChunks() {
cx, cz := chunkPos.X, chunkPos.Z
chunk, err := region.Chunk(cx, cz)
switch err {
case nil:
case mcmap.NotAvailable:
continue chunkLoop
default:
fmt.Fprintf(os.Stderr, "Error while getting chunk (%d, %d): %s\n", cx, cz, err)
os.Exit(1)
}
modified := false
chunk.Iter(func(x, y, z int, blk *mcmap.Block) {
if blk.ID == mcmap.BlkBlockOfIron {
blk.ID = mcmap.BlkBlockOfDiamond
modified = true
}
})
if modified {
fmt.Printf("Modified chunk %d, %d.\n", cx, cz)
chunk.MarkModified()
}
if err := chunk.MarkUnused(); err != nil {
fmt.Fprintf(os.Stderr, "Error while unloading chunk %d, %d: %s\n", cx, cz, err)
os.Exit(1)
}
}
if err := region.Save(); err != nil {
fmt.Fprintf(os.Stderr, "Error while saving: %s\n", err)
os.Exit(1)
}
}
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