Original Stunts (4D Sports Driving) Track-Format

A Stunts track-file (*.trk) has 1802 bytes. A Track is composed of 900 (30x30) squares. Each byte represents a square.
At first, from byte 0 to 899 are the Items on the Track located (from left to right and from top to bottom).
Then comes one byte for the skybox (0=desert; 1=tropical; 2=alpine; 3=city; 4=county)
Afterwards (byte 901-1800) the terraininformation beginns. The Squares are ordered from left to right and from bottom to top!
About the last byte I dont't know anything.

Terrain (Bytes 901-1800)

Hex   Icon Info
0x00 a flat piece of land at sea level
0x01 a square of water at sea level
0x02 an element of coast, with land on the right, water on the left, and a top left to bottom right division
0x03 an element of coast, with land on the left, water on the right, and a top right to bottom left division
0x04 an element of coast, with land on the left, water on the right, and a top left to bottom right division
0x05 an element of coast, with land on the right, water on the left, and a top right to bottom left division
0x06 a flat piece of land at an elevated level
0x07 a horizontal slope, with the low end at the bottom
0x08 a vertical slope, with the low end on the right
0x09 a horizontal slope, with the low end at the top
0x0a a vertical slope, with the low end on the left
0x0b a diagonal slope with three corners at sea level, the one in the top left being instead elevated
0x0c a diagonal slope with three corners at sea level, the one in the bottom left being instead elevated
0x0d a diagonal slope with three corners at sea level, the one in the bottom right being instead elevated
0x0e a diagonal slope with three corners at sea level, the one in the top right being instead elevated
0x0f a diagonal slope with three corners elevated, the one in the bottom right being instead at sea level
0x10 a diagonal slope with three corners elevated, the one in the top right being instead at sea level
0x11 a diagonal slope with three corners elevated, the one in the top left being instead at sea level
0x12 a diagonal slope with three corners elevated, the one in the bottom left being instead at sea level

Items (Bytes 0-899)

Hex   Icon Info
0x00 blank field
0x01
0x04 a vertical piece of normal road
0x05 a horizontal piece of normal road
0x06 a tight corner of normal road connecting the bottom of a square to the right
0x07 a tight corner of normal road connecting the bottom of a square to the left
0x08 a tight corner of normal road connecting the top of a square to the right
0x09 a tight corner of normal road connecting the top of a square to the left
0x0a a corner of normal road connecting the bottom of a four square area to the right
0x0b a corner of normal road connecting the bottom of a four square area to the left
0x0c a corner of normal road connecting the top of a four square area to the right
0x0d a corner of normal road connecting the top of a four square area to the left
0x0e a vertical piece of dirty road
0x0f a horizontal piece of dirty road
0x10 a tight corner of dirty road connecting the bottom of a square to the right
0x11 a tight corner of dirty road connecting the bottom of a square to the left
0x12 a tight corner of dirty road connecting the top of a square to the right
0x13 a tight corner of dirty road connecting the top of a square to the left
0x14 a corner of dirty road connecting the bottom of a four square area to the right
0x15 a corner of dirty road connecting the bottom of a four square area to the left
0x16 a corner of dirty road connecting the top of a four square area to the right
0x17 a corner of dirty road connecting the top of a four square area to the left
0x18 a vertical piece of icy road
0x19 a horizontal piece of icy road
0x1a a tight corner of icy road connecting the bottom of a square to the right
0x1b a tight corner of icy road connecting the bottom of a square to the left
0x1c a tight corner of icy road connecting the top of a square to the right
0x1d a tight corner of icy road connecting the top of a square to the left
0x1e a corner of icy road connecting the bottom of a four square area to the right
0x1f a corner of icey road connecting the bottom of a four square area to the left
0x20 a corner of icy road connecting the top of a four square area to the right
0x21 a corner of icy road connecting the top of a four square area to the left
0x22 a vertical section of raised road
0x23 a horizontal section of raised road
0x24 a raised ramp, connecting to a rightward raised section
0x25 a raised ramp, connecting to a leftward raised section
0x26 a raised ramp, connecting to an upward raised section
0x27 a raised ramp, connecting to a downward raised section
0x28
0x29
0x2a
0x2b
0x2c
0x2d
0x2e
0x2f
0x30
0x31
0x32
0x33
0x34
0x35
0x36
0x37
0x38 a bridge, connecting to a rightward raised section
0x39 a bridge, connecting to a leftward raised section
0x3a a bridge, connecting to an upward raised section
0x3b a bridge, connecting to a downward raised section
0x3c
0x3d
0x3e
0x3f
0x40
0x41
0x42
0x43
0x44
0x45
0x46
0x47
0x48
0x49
0x4a a normal cross road
0x4b
0x4c
0x4d
0x4e
0x4f
0x50
0x51
0x52
0x53
0x54
0x55
0x56
0x57
0x58
0x59
0x5a
0x5b
0x5c
0x5d
0x5e
0x5f a solid ramp, connecting to a rightward raised section
0x60 a solid ramp, connecting to a leftward raised section
0x61 a solid ramp, connecting to an upward raised section
0x62 a solid ramp, connecting to a downward raised section
0x63 a vertical section of solid road
0x64 a horizontal section of solid road
0x65 a vertical section of elevated span above a horizontal road section
0x66 a horizontal section of elevated span above a vertical road section
0x67 a vertical section of elevated span
0x68 a horizontal section of elevated span
0x69 a raised corner connecting the bottom of a square to the right
0x6a a raised corner connecting the bottom of a square to the left
0x6b a raised corner connecting the top of a square to the right
0x6c a raised corner connecting the top of a square to the left
0x6d
0x6e
0x6f
0x70
0x71
0x72
0x73
0x74
0x75
0x76
0x77
0x78
0x79
0x7a
0x7b
0x7c
0x7d a dirty cross road
0x7e
0x7f
0x80
0x81
0x82
0x83
0x84
0x85
0x86
0x87
0x88
0x89
0x8a an icy cross road
0x8b
0x8c
0x8d
0x8e
0x8f
0x90
0x91
0x92
0x93
0x94
0x95
0x96
0x97
0x98
0x99
0x9a
0x9b
0x9c
0x9d
0x9e
0x9f
0xa0
0xa1
0xa2
0xa3
0xa4
0xa5
0xa6
0xa7
0xa8
0xa9
0xaa
0xab
0xac
0xad
0xae
0xaf
0xb0
0xb1
0xb2
0xb3
0xb4
0xb5
0xfd blank field (the item on the top left needs this space)
0xfe blank field (the item on the top needs this space)
0xff blank field (the item on the left needs this space)