rswiki-book/474-Protocol.mediawiki

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[[Category Packet]]
[[Category Packet 474]]
[[Category RS2]]
Not much progress has been made with this revision, don't worry about it too much.
== '''Packet structure''' ==
When the client sends a packet to the server, the first byte encapsulates its opcode. This specific opcode is encrypted with a value generated by the ISAAC PRNG seeded with a dynamically server generated key during the login block. The server decrypts it and associates the opcode to the packet's respective predefined size. If the packet does not contain a fixed size, the opcode will be followed by either a byte or a word - varying per packet - for its proper size. This is then followed by the payload.
== '''Login''' ==
?
== '''Game Protocol''' ==
===Server -> Client Packets===
{| border=2
|-
! Opcode
! Type
! Length (bytes)
! Name
! Description
|-
| 209
| VARIABLE_BYTE
| N/A
| [[474 Send message|Send message]]
| Sends a server message (e.g. 'Welcome to RuneScape') or trade/duel request.
|-
| 231
| VARIABLE_SHORT
| N/A
| [[474 Send string|Send string]]
| Replaces a string of text. (e.g. Replace: 'Click here to Play' with 'Play Now!')
|-
|}
===Client -> Server Packets===
{| border=2
|-
! Opcode
! Type
! Length (bytes)
! Name
! Description
|-
| 1
| FIXED
| 8
| [[474 Remove ignore|Remove ignore]]
| Sent when a player removes a player from their ignore list.
|-
| 13
| FIXED
| 12
| [[474 Item on NPC|Item on NPC]]
| Sent when a player uses an item on an NPC.
|-
| 21
| FIXED
| 2
| [[474 Npc action 2|Npc action 2]]
| Sent when a player clicks the second option of an NPC.
|-
| 31
| FIXED
| 6
| [[474 Object action 1|Object action 1]]
| Sent when the player clicks the first option of an object, such as "Cut" for trees.
|-
| 203
| FIXED
| 6
| [[474 Object action 2|Object action 2]]
| Sent when the player clicks the second option of an object, such as "Use-quickly" for Bank Booths.
|-
| 34
| FIXED
| 1
| [[474 Focus change|Focus change]]
| Sent when the game client window goes out of focus.
|-
| 35
| FIXED
| 8
| [[474 Magic on player|Magic on player]]
| Sent when the player casts magic on another player.
|-
| 226
| FIXED
| 2
| [[474 Examine object|Examine object]]
| Sent when you examine an object.
|-
|}