From 9eb5ab1818b6b19501fd7209db1987c9e06cc919 Mon Sep 17 00:00:00 2001
From: historia <[not public]>
Date: Tue, 9 Jun 2026 05:59:20 -0400
Subject: first commit

---
 cmd/mud/main.go | 61 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 cmd/mud/main.go

(limited to 'cmd/mud')

diff --git a/cmd/mud/main.go b/cmd/mud/main.go
new file mode 100644
index 0000000..d04bd9b
--- /dev/null
+++ b/cmd/mud/main.go
@@ -0,0 +1,61 @@
+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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