Decrease sneak margin to combat phasing through thin walls (luanti-org#13607)

archfan7411 · web-flow · commit 9b310a6e6f66 · 2023-07-17T20:44:33.000+02:00
A 1/16th-node-thick wall is 0.625 meters thick, and the previous margin of 0.1 meters meant that these walls could be phased through by sneaking against them. A margin lower than 0.625 prevents this.
diff --git a/src/client/localplayer.cpp b/src/client/localplayer.cpp
@@ -60,7 +60,9 @@ bool LocalPlayer::updateSneakNode(Map *map, const v3f &position,
 	const v3f &sneak_max)
 {
 	// Acceptable distance to node center
-	constexpr f32 allowed_range = (0.5f + 0.1f) * BS;
+	// This must be > 0.5 units to get the sneak ladder to work
+	// 0.05 prevents sideways teleporting through 1/16 thick walls
+	constexpr f32 allowed_range = (0.5f + 0.05f) * BS;
 	static const v3s16 dir9_center[9] = {
 		v3s16( 0, 0,  0),
 		v3s16( 1, 0,  0),
