Add SCUM log sessions and trajectory projections

plugins/examples/scum-server-plugin/companion/events.go

@@ -3,10 +3,13 @@ package companion
 import (
 	"crypto/sha256"
 	"encoding/hex"
+	"regexp"
 	"strings"
 	"time"
 )
 
+var scumLoginLogLine = regexp.MustCompile(`^\d{4}\.\d{2}\.\d{2}-\d{2}\.\d{2}\.\d{2}: '([0-9.]+) (\d{1,50}):([^']{1,80})\(\d+\)' logged (in|out)(?: .*)?$`)
+
 // ConsoleRecord is supplied by Run's stdout/stderr stream, not by the server
 // execution log. The channel never accepts a file path or a raw log archive.
 type ConsoleRecord struct {
@@ -21,6 +24,7 @@ type SemanticEvent struct {
 	Sequence           uint64
 	Type               string
 	PlayerID           string
+	DisplayName        string
 	OccurredAt         time.Time
 	NetworkCorrelation string
 }
@@ -62,6 +66,9 @@ func ParseConsoleRecords(serverID string, records []ConsoleRecord, correlationSe
 	return batch
 }
 func parseConsoleRecord(record ConsoleRecord, secret string) (SemanticEvent, bool) {
+	if event, ok := parseLoginLogRecord(record, secret); ok {
+		return event, true
+	}
 	fields := strings.Fields(record.Text)
 	if len(fields) < 3 || fields[0] != "SCUM" || (fields[1] != "LOGIN" && fields[1] != "LOGOUT") || !steamID64(fields[2]) {
 		return SemanticEvent{}, false
@@ -76,9 +83,26 @@ func parseConsoleRecord(record ConsoleRecord, secret string) (SemanticEvent, boo
 	}
 	return event, true
 }
+
+func parseLoginLogRecord(record ConsoleRecord, secret string) (SemanticEvent, bool) {
+	match := scumLoginLogLine.FindStringSubmatch(record.Text)
+	if match == nil || !steamID64(match[2]) {
+		return SemanticEvent{}, false
+	}
+	eventType := "scum.login"
+	if match[4] == "out" {
+		eventType = "scum.logout"
+	}
+	event := SemanticEvent{ServerID: record.ServerID, Sequence: record.Sequence, Type: eventType, PlayerID: match[2], DisplayName: match[3], OccurredAt: record.OccurredAt}
+	if secret != "" {
+		event.NetworkCorrelation = networkCorrelation(record.ServerID, match[1], secret)
+	}
+	return event, true
+}
+
 func networkCorrelation(serverID, value, secret string) string {
 	digest := sha256.Sum256([]byte(serverID + "\x00" + secret + "\x00" + value))
-	return hex.EncodeToString(digest[:16])
+	return hex.EncodeToString(digest[:])
 }
 func appendDiagnostic(existing []EventDiagnostic, diagnostic EventDiagnostic) []EventDiagnostic {
 	if len(existing) >= 32 {

plugins/examples/scum-server-plugin/companion/events_test.go

@@ -17,4 +17,24 @@ func TestConsoleSemanticEventProducerParsesOnlyBoundedKnownOutput(t *testing.T)
 	if batch.Events[0].NetworkCorrelation == "10.0.0.1" {
 		t.Fatal("raw network value leaked")
 	}
+	if len(batch.Events[0].NetworkCorrelation) != 64 {
+		t.Fatalf("network correlation must be full sha256 hex, got %q", batch.Events[0].NetworkCorrelation)
+	}
+}
+
+func TestConsoleSemanticEventProducerParsesScumLoginLog(t *testing.T) {
+	observedAt := time.Date(2026, 8, 27, 12, 0, 0, 0, time.UTC)
+	batch := ParseConsoleRecords("server-1", []ConsoleRecord{
+		{ServerID: "server-1", Stream: "stdout", Sequence: 1, OccurredAt: observedAt, Text: "2026.08.27-12.00.00: '10.0.0.2 76561198000000002:Ada(42)' logged in at: X=1 Y=2 Z=3"},
+		{ServerID: "server-1", Stream: "stdout", Sequence: 2, OccurredAt: observedAt.Add(time.Second), Text: "2026.08.27-12.00.01: '10.0.0.2 76561198000000002:Ada(42)' logged out"},
+	}, "fixture-secret")
+	if len(batch.Events) != 2 || batch.Events[0].Type != "scum.login" || batch.Events[1].Type != "scum.logout" {
+		t.Fatalf("login log events not parsed: %+v", batch)
+	}
+	if batch.Events[0].PlayerID != "76561198000000002" || batch.Events[0].DisplayName != "Ada" || len(batch.Events[0].NetworkCorrelation) != 64 {
+		t.Fatalf("login event fields are incomplete: %+v", batch.Events[0])
+	}
+	if batch.Events[0].NetworkCorrelation == "10.0.0.2" {
+		t.Fatal("raw login log IP leaked")
+	}
 }