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no need for a temp stream to encode the gameevent list

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This commit is contained in:
Robin Appelman 2017-09-04 22:45:27 +02:00
commit 7b9131b7fe
1 changed files with 13 additions and 24 deletions
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37
src/Parser/Packet/GameEventList.ts
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@ -38,36 +38,25 @@ export function EncodeGameEventList(packet: GameEventListPacket, stream: BitStre
const definitions = Array.from(packet.eventList.values()); const definitions = Array.from(packet.eventList.values());
stream.writeBits(definitions.length, 9); stream.writeBits(definitions.length, 9);
const eventListBitLength = getEventListLength(definitions); const lengthStart = stream.index;
const eventListStream = new BitStream(new ArrayBuffer(Math.ceil(eventListBitLength / 8))); stream.index += 20;
const eventListStart = stream.index;
for (const definition of definitions) { for (const definition of definitions) {
eventListStream.writeBits(definition.id, 9); stream.writeBits(definition.id, 9);
eventListStream.writeASCIIString(definition.name); stream.writeASCIIString(definition.name);
for (const entry of definition.entries) { for (const entry of definition.entries) {
eventListStream.writeBits(entry.type, 3); stream.writeBits(entry.type, 3);
eventListStream.writeASCIIString(entry.name); stream.writeASCIIString(entry.name);
} }
eventListStream.writeBits(0, 3); stream.writeBits(0, 3);
} }
const finalLength = eventListStream.index; const eventListEnd = stream.index;
stream.writeBits(finalLength, 20);
eventListStream.index = 0; stream.index = lengthStart;
stream.writeBitStream(eventListStream); stream.writeBits(eventListEnd - eventListStart, 20);
}
function getEventListLength(eventList: GameEventDefinition<GameEventType>[]) { stream.index = eventListEnd;
return eventList.reduce((length: number, entry: GameEventDefinition<GameEventType>) => {
return length +
9 +
(entry.name.length + 1) * 8 +
3 +
entry.entries.reduce((length: number, event: GameEventEntry) => {
return length +
3
+ (event.name.length + 1) * 8;
}, 0);
}, 0);
} }