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package main
import (
"fmt"
"log"
"os"
"os/signal"
"strconv"
"syscall"
"thirdcollapse/internal/game"
"thirdcollapse/internal/net"
)
func main() {
dataDir := os.Getenv("DATA_DIR")
if dataDir == "" {
dataDir = "data"
}
port := 4000
if len(os.Args) > 1 {
if p, err := strconv.Atoi(os.Args[1]); err == nil && p >= 1 && p <= 65535 {
port = p
} else {
log.Fatalf("invalid port: %s (must be 1-65535)", os.Args[1])
}
}
g := game.New(dataDir)
g.Ticks.Start()
defer g.Ticks.Stop()
g.Ticks.Subscribe(1, func() bool {
g.World.Tick()
return true
})
addr := fmt.Sprintf(":%d", port)
server, err := net.NewServer(addr)
if err != nil {
log.Fatalf("failed to start server: %v", err)
}
g.SetHub(server.Hub())
log.Printf("Third Collapse listening on :%d", port)
sigCh := make(chan os.Signal, 1)
signal.Notify(sigCh, syscall.SIGINT, syscall.SIGTERM)
go func() {
<-sigCh
log.Println("Shutting down...")
g.Ticks.Stop()
os.Exit(0)
}()
if err := server.ListenAndServe(g.HandleSession); err != nil {
log.Fatalf("server error: %v", err)
}
}
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