Objects

Objects that can be moved or destroyed, such as item boxes, trees, and the giant sign in Mario Raceway, are stored in the same format as Course Paths. Like the paths, they are stored at hardcoded offsets in segment 6.

This list lists the location of each track's initialization routine in RAM, and the objects it loads in order:

Object	Offset
0x00 Mario Raceway (0x8029DBBC)
Item Boxes	0x9498
Piranha Plants	0x9518
Trees	0x9570
0x01 Choco Mountain (0x8029DC88)
Item Boxes	0x7250
Falling Rocks	0x7230
Unknown	0x4480
0x02 Bowser's Castle (0x8029DCA8)
Trees	0x9290
Item Boxes	0x9370
0x03 Banshee Boardwalk (0x8029DCC8)
Item Boxes	0xB3D0
0x04 Yoshi Valley (0x8029DCDC)
Trees	0x180A0
Item Boxes	0x18110
0x05 Frappe Snowland (0x8029DD40)
Trees	0x7718
Item Boxes	0x7810
Unknown	0x34A0
0x06 Koopa Troopa Beach (0x8029DD60)
Item Boxes	0x18E78
Palm Trees	0x18F70
Unknown	0xADE0
0x07 Royal Raceway (0x8029DDA8)
Trees	0xDA78
Item Boxes	0xDB80
Piranha Plants	0xD9F0
Unknown	0xB5B8
0x08 Luigi Raceway (0x8029DDD4)
Trees	0xFE80
Item Boxes	0xFDE8
0x09 Moo Moo Farm (0x8029DDF4)
Trees	0x14330 (not loaded in 4-player mode)
Item Boxes	0x143E0
0x0A Toad's Turnpike (0x8029DE28)
Item Boxes	0x23AE0
0x0B Kalimari Desert (0x8029DE3C)
Trees	0x22F08
Item Boxes	0x22E8
0x0C Sherbet Land (0x8029DFD4)
Trees	0x9B80
Unknown	0x4BF8
0x0D Rainbow Road (0x8029DFE8)
Item Boxes	0x16338
0x0E Wario Stadium (0x8029DFFC)
Item Boxes	0xCB40
0x0F Block Fort (0x8029E0D0)
Item Boxes	0x38
0x10 Skyscraper (0x8029E0E4)
Item Boxes	0x80
0x11 Double Deck (0x8029E0F8)
Item Boxes	0x28
0x12 DK's Jungle Parkway (0x8029E10C)
Item Boxes	0x13EC0
0x13 Big Donut (0x8029E130)
Item Boxes	0x58

The initialization routine calls the following routine to load the objects, with register A0 set to the RSP address of the object positions:

• 0x8029D830: Item boxes
• 0x8029D584: Trees
• 0x8029CC14: Piranha plants
• 0x8029CD80: Palm trees (Koopa Beach)
• 0x8029D018: Falling rocks (Choco Mountain)

Trees (except palm trees), bushes, and cacti are all the same object with different graphics. Special item boxes (rigged to always give a blue shell) aren't handled here.

The tracks' initialization routines also load some other objects:

• Yoshi Valley calls 0x802B529C to load the giant egg
  • A0 = SP + 0x40
  • A1 = X position
  • A2 = Y position
  • A3 = Z position
  • Removing this call makes the egg invisible and places it at coordinates 0,0,0
• DK's Jungle Parkway calls 0x8029D9F8 (from 0x8029E118); this causes coconuts to be thrown.
• 0x8029E380 calls 0x802A84F4 when loading Luigi Raceway and maybe some others (XXX):
  • A0 = 0x0F035568 (pointing at something in/after segment 7 data?)
  • A1 = 0x0400
  • A2 = 0x0800
  • Looks similar to an object loading routine
  • Disabling it seems to have no effect