Network Protocol/ITEM

Overview

This article describes the record type ITEM of the Network Protocol.

Race Packet Sections

Name	Amount	Size	Description
SLOT	0-1	0x08	Only used for redirected data via a proxy. The record identifies the original client by its slot number.
HEADER	1	0x10	A header for a race packet.
RACEHEADER_1	1	0x28	A record with basic race data.
RACEHEADER_2	0-1	0x28	A record with game-mode specific race data (not present in live view).
ROOM	0-1	0x04	A record containing a friend room message (not present outside friend room lobbies).
SELECT	0-1	0x38	A record containing data to set up a match (not present during races).
RACEDATA	1-2	0x40	A record containing race data for each player, such as positions or inputs.
USER	0-1	0xC0	A record containing user data such as Miis and friend codes.
ITEM	1-2	0x08	A record containing information about players' items.
EVENT	1	≥ 0x18	A record transmitting item events.

typedef struct udp_item_t
{
 /*00*/  u8	timer;               // start time of item in 8/60s := RACE.timer/8
 /*01*/  u8	item_box;            // item in the box => mkw_item_type_t
 /*02*/  u8	item_tail;           // item at tail => mkw_item_type_t
 /*03*/  u8	mode;                // activation mode: 0=no item, 1-7=handshake
 /*04*/  u8	tail_mode;           // ? 3=hold, 4=shoot, 5=3/3, 6=2/3, 7=1/3
 /*05*/  u8	acknowledge;         // ? 0=ok, 1=fail
 /*06*/  u8	ack_timer;           // return the timer value to accept item of other client
 /*07*/  u8	padding_07;          // padding, always 0

 /*08*/
}
__attribute__ ((packed)) udp_item_t;

Item Types

The members item_box and item_tail describe which item is available in the item box roulette and which around the vehicle.

Items

Offset	Item
0x00	Green Shell
0x01	Red Shell
0x02	Banana
0x03	Fake Item Box
0x04	Mushroom
0x05	Triple Mushroom
0x06	Bob-omb
0x07	Blue Shell
0x08	Lightning
0x09	Star
0x0A	Golden Mushroom
0x0B	Mega Mushroom
0x0C	Blooper
0x0D	POW Block
0x0E	Thunder Cloud
0x0F	Bullet Bill
0x10	Triple Green Shells
0x11	Triple Red Shells
0x12	Triple Bananas
0x13	Unused item
0x14	None

Network Protocol

Information:
Nintendo's Servers – Friend Code – Nick – Dumping Network Traffic

Record Types:
HEADER – ROOM – SELECT – USER
RACEHEADER_1 – RACEHEADER_2 – RACEDATA – ITEM – EVENT
NATNEG – ANNOUNCE – QUIT – STATUS – PARAM-STRING

Wiimmfi Extensions:
Online Status – Connection Status – Wiimmfi packets – Server SV

Software:
Wiimms mkw-ana