rswiki-book/src/474-Protocol.md

\[Category Packet

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===

{

! Opcode ! Type ! Length (bytes) ! Name ! Description |- | 209 | VARIABLE_BYTE | N/A | 474 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===

{

! Opcode ! Type ! Length (bytes) ! Name ! Description |- | 1 | FIXED | 8 | 474 Remove ignore | Sent when a player removes a player from their ignore list. |- | 3 | FIXED | 6 |

\[474 Fourth Interface Option\|Fourth Interface Option

triggered when a fourth interface option has been clicked. |- | 4 | FIXED | N/A | 474 Fourth Object Option | This is triggered when a fourth object option has been clicked. |- | 11 | FIXED | N/A | 474 Minimap Walk | Sends walking data to the server. |- | 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 | Sent when a player clicks the second option of an NPC. |- | 22 | FIXED | N/A | 474 Kick Clanchat Participant | Indicates a friend of the clanChat owner attempts to kick a fellow clanChatParticipant (non-owner). |- | 29 | FIXED | N/A | [[474 Sixth Interface Option|Sixth Interface Option]] | Tells the server a sixth interface option has been clicked. |- | 31 | FIXED | 6 |

\[474 Object action 1\|Object action 1

clicks the first option of an object, such as "Cut" for trees. |- | 34 | FIXED | N/A | 474 Client Focus | Tells the server the clients focus has changed. |- | 35 | FIXED | N/A |

\[474 Use Magic On Player\|Use Magic On Player

player wants to use a spell on another player. |- | 37 | FIXED | N/A | 474 Third interface option | This is triggered when one a third interface option has been clicked. |- | 203 | FIXED | 6 | 474 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 | Sent when you examine an object.
|- |}