Latest revision as of 21:05, 3 July 2025

XECLN (XEen Curve LiNe) is a filetype from Mario Kart Arcade GP DX and the successor of Mario Kart Arcade GP and Mario Kart Arcade GP 2 Line and Auto files. They contain path data used for enemy and item routes.

File Format

The file byte order is always little endian.

The file starts with a header that is 0x10 bytes long.

Offset	Type	Description
0x00	Char[4]	File magic. Always LINE in ASCII.
0x04	Int32	Unknown. Always 1. Maybe version?
0x08	Int32	Number of route groups.
0x0C	Int32	Total number of route points.
0x10	End of header, start of Point Data

Each route point has its own 0x28 byte long entry.

Offset	Type	Description
0x00	Float[3]	Point XYZ position.
0x0C	Float	Unknown.
0x10	Float	Unknown.
0x14	Float	Unknown.
0x18	Float	Unknown.
0x1C	Float	Unknown.
0x20	Float	Distance between this and the next point.
0x24	Int16	Point flag. Usually, 1 indicates the start, and 2 indicates the end of a route.
0x26	Int16	Route group index.

The following tools can handle XECLN files:

@@ Line 27: / Line 27: @@
 ! Offset !! Type !! Description
 |-
-| 0x00 || Float[3] || Point position.
+| 0x00 || Float[3] || '''Point XYZ position'''.
 |-
 | 0x0C || Float || {{Unknown-left|'''Unknown'''.}}
@@ Line 39: / Line 39: @@
 | 0x1C || Float || {{Unknown-left|'''Unknown'''.}}
 |-
-| 0x20 || Float || {{Unknown-left|'''Unknown'''.}}
+| 0x20 || Float || '''Distance between this and the next point'''.
 |-
-| 0x24 || Int16 || {{Unknown-left|'''Unknown'''. Probably a flag.}}
+| 0x24 || Int16 || '''Point flag'''. Usually, 1 indicates the start, and 2 indicates the end of a route.
 |-
 | 0x26 || Int16 || Route group index.