From 1a33c4e1029571e8c24ea27ca752f0c4a02da6a8 Mon Sep 17 00:00:00 2001
From: vickydotbat <vickydotbat@tutamail.com>
Date: Mon, 8 Jun 2026 19:39:27 +0200
Subject: [PATCH] fix: png now 2080

---
 internal/erf/erf.go      | 4 ++--
 internal/erf/erf_test.go | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/internal/erf/erf.go b/internal/erf/erf.go
index 8830ac1..dd71df0 100644
--- a/internal/erf/erf.go
+++ b/internal/erf/erf.go
@@ -115,7 +115,7 @@ var extensionTypes = map[string]uint16{
 	"mtr": 0x0818,
 	"jpg": 0x081C,
 	"lod": 0x081E,
-	"png": 0x083E,
+	"png": 0x0820,
 	"lyt": 0x0BB8,
 	"vis": 0x0BB9,
 	"mdx": 0x0BC0,
@@ -180,7 +180,7 @@ var typeExtensions = map[uint16]string{
 	0x0818: "mtr",
 	0x081C: "jpg",
 	0x081E: "lod",
-	0x083E: "png",
+	0x0820: "png",
 	0x0BB8: "lyt",
 	0x0BB9: "vis",
 	0x0BC0: "mdx",
diff --git a/internal/erf/erf_test.go b/internal/erf/erf_test.go
index 628c04e..2dbe828 100644
--- a/internal/erf/erf_test.go
+++ b/internal/erf/erf_test.go
@@ -58,8 +58,8 @@ func TestExtensionMappingsKeep2DAAndTLKDistinct(t *testing.T) {
 }
 
 func TestHAKResourceTypeForExtensionSupportsPNG(t *testing.T) {
-	if resourceType, ok := HAKResourceTypeForExtension("png"); !ok || resourceType != 0x083E {
-		t.Fatalf("expected png to stay valid for HAK generation, got ok=%v type=0x%04X", ok, resourceType)
+	if resourceType, ok := HAKResourceTypeForExtension("png"); !ok || resourceType != 0x0820 {
+		t.Fatalf("expected png restype 0x0820 (2080) for HAK generation, got ok=%v type=0x%04X", ok, resourceType)
 	}
 	if resourceType, ok := HAKResourceTypeForExtension("2da"); !ok || resourceType != 0x07E1 {
 		t.Fatalf("expected 2da to stay valid for HAK generation, got ok=%v type=0x%04X", ok, resourceType)