Open-source multiplayer game server compatible with the RuneScape client
https://www.openrs2.org/
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31 lines
959 B
31 lines
959 B
package org.openrs2.protocol
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import io.netty.buffer.ByteBuf
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import io.netty.buffer.ByteBufAllocator
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import org.openrs2.crypto.StreamCipher
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public abstract class PacketCodec<T : Packet>(
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public val type: Class<T>,
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public val opcode: Int
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) {
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init {
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require(opcode in 0 until 256)
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}
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public abstract fun decode(input: ByteBuf, cipher: StreamCipher): T
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public abstract fun encode(input: T, output: ByteBuf, cipher: StreamCipher)
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public abstract fun isLengthReadable(input: ByteBuf): Boolean
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public abstract fun readLength(input: ByteBuf): Int
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public abstract fun writeLengthPlaceholder(output: ByteBuf)
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public abstract fun setLength(output: ByteBuf, index: Int, written: Int)
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public open fun allocateBuffer(alloc: ByteBufAllocator, input: T, preferDirect: Boolean): ByteBuf {
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return if (preferDirect) {
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alloc.ioBuffer()
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} else {
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alloc.heapBuffer()
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}
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}
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}
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