runelite/runescape-client/src/main/java/PacketBuffer.java

import net.runelite.mapping.Export;
import net.runelite.mapping.Implements;
import net.runelite.mapping.ObfuscatedGetter;
import net.runelite.mapping.ObfuscatedName;
import net.runelite.mapping.ObfuscatedSignature;
import net.runelite.rs.ScriptOpcodes;

@ObfuscatedName("kf")
@Implements("PacketBuffer")
public class PacketBuffer extends Buffer {
	@ObfuscatedName("n")
	static final int[] field3695;
	@ObfuscatedName("z")
	@ObfuscatedSignature(
		signature = "Llg;"
	)
	@Export("isaacCipher")
	IsaacCipher isaacCipher;
	@ObfuscatedName("v")
	@ObfuscatedGetter(
		intValue = -1801396377
	)
	@Export("bitIndex")
	int bitIndex;

	static {
		field3695 = new int[]{0, 1, 3, 7, 15, 31, 63, 127, 255, 511, 1023, 2047, 4095, 8191, 16383, 32767, 65535, 131071, 262143, 524287, 1048575, 2097151, 4194303, 8388607, 16777215, 33554431, 67108863, 134217727, 268435455, 536870911, 1073741823, Integer.MAX_VALUE, -1};
	}

	public PacketBuffer(int var1) {
		super(var1);
	}

	@ObfuscatedName("z")
	@ObfuscatedSignature(
		signature = "([II)V",
		garbageValue = "2116683841"
	)
	@Export("newIsaacCipher")
	public void newIsaacCipher(int[] var1) {
		this.isaacCipher = new IsaacCipher(var1);
	}

	@ObfuscatedName("n")
	@ObfuscatedSignature(
		signature = "(Llg;B)V",
		garbageValue = "100"
	)
	@Export("setIsaacCipher")
	public void setIsaacCipher(IsaacCipher var1) {
		this.isaacCipher = var1;
	}

	@ObfuscatedName("v")
	@ObfuscatedSignature(
		signature = "(II)V",
		garbageValue = "1358666817"
	)
	@Export("writeByteIsaac")
	public void writeByteIsaac(int var1) {
		super.array[++super.offset - 1] = (byte)(var1 + this.isaacCipher.nextInt());
	}

	@ObfuscatedName("u")
	@ObfuscatedSignature(
		signature = "(I)I",
		garbageValue = "-2099772642"
	)
	@Export("readByteIsaac")
	public int readByteIsaac() {
		return super.array[++super.offset - 1] - this.isaacCipher.nextInt() & 255;
	}

	@ObfuscatedName("r")
	@ObfuscatedSignature(
		signature = "(I)Z",
		garbageValue = "-1080759401"
	)
	public boolean method5380() {
		int var1 = super.array[super.offset] - this.isaacCipher.method6191() & 255;
		return var1 >= 128;
	}

	@ObfuscatedName("p")
	@ObfuscatedSignature(
		signature = "(I)I",
		garbageValue = "427431431"
	)
	@Export("readSmartByteShortIsaac")
	public int readSmartByteShortIsaac() {
		int var1 = super.array[++super.offset - 1] - this.isaacCipher.nextInt() & 255;
		return var1 < 128 ? var1 : (var1 - 128 << 8) + (super.array[++super.offset - 1] - this.isaacCipher.nextInt() & 255);
	}

	@ObfuscatedName("q")
	@ObfuscatedSignature(
		signature = "([BIII)V",
		garbageValue = "1740365961"
	)
	public void method5385(byte[] var1, int var2, int var3) {
		for (int var4 = 0; var4 < var3; ++var4) {
			var1[var4 + var2] = (byte)(super.array[++super.offset - 1] - this.isaacCipher.nextInt());
		}

	}

	@ObfuscatedName("m")
	@ObfuscatedSignature(
		signature = "(I)V",
		garbageValue = "1647095141"
	)
	@Export("importIndex")
	public void importIndex() {
		this.bitIndex = super.offset * 8;
	}

	@ObfuscatedName("y")
	@ObfuscatedSignature(
		signature = "(II)I",
		garbageValue = "1367970229"
	)
	@Export("readBits")
	public int readBits(int var1) {
		int var2 = this.bitIndex >> 3;
		int var3 = 8 - (this.bitIndex & 7);
		int var4 = 0;

		for (this.bitIndex += var1; var1 > var3; var3 = 8) {
			var4 += (super.array[var2++] & field3695[var3]) << var1 - var3;
			var1 -= var3;
		}

		if (var3 == var1) {
			var4 += super.array[var2] & field3695[var3];
		} else {
			var4 += super.array[var2] >> var3 - var1 & field3695[var1];
		}

		return var4;
	}

	@ObfuscatedName("i")
	@ObfuscatedSignature(
		signature = "(B)V",
		garbageValue = "4"
	)
	@Export("exportIndex")
	public void exportIndex() {
		super.offset = (this.bitIndex + 7) / 8;
	}

	@ObfuscatedName("c")
	@ObfuscatedSignature(
		signature = "(II)I",
		garbageValue = "586994412"
	)
	@Export("bitsRemaining")
	public int bitsRemaining(int var1) {
		return var1 * 8 - this.bitIndex;
	}

	@ObfuscatedName("aa")
	@ObfuscatedSignature(
		signature = "(ILcu;ZB)I",
		garbageValue = "82"
	)
	static int method5408(int var0, Script var1, boolean var2) {
		int var3;
		int var4;
		int var6;
		if (var0 == ScriptOpcodes.ENUM_STRING) {
			Interpreter.Interpreter_intStackSize -= 2;
			var3 = Interpreter.Interpreter_intStack[Interpreter.Interpreter_intStackSize];
			var4 = Interpreter.Interpreter_intStack[Interpreter.Interpreter_intStackSize + 1];
			EnumDefinition var5 = UserComparator10.getEnum(var3);
			if (var5.outputType != 's') {
			}

			for (var6 = 0; var6 < var5.outputCount; ++var6) {
				if (var4 == var5.keys[var6]) {
					Interpreter.Interpreter_stringStack[++Interpreter.Interpreter_stringStackSize - 1] = var5.strVals[var6];
					var5 = null;
					break;
				}
			}

			if (var5 != null) {
				Interpreter.Interpreter_stringStack[++Interpreter.Interpreter_stringStackSize - 1] = var5.defaultStr;
			}

			return 1;
		} else if (var0 != ScriptOpcodes.ENUM) {
			if (var0 == ScriptOpcodes.ENUM_GETOUTPUTCOUNT) {
				var3 = Interpreter.Interpreter_intStack[--Interpreter.Interpreter_intStackSize];
				EnumDefinition var10 = UserComparator10.getEnum(var3);
				Interpreter.Interpreter_intStack[++Interpreter.Interpreter_intStackSize - 1] = var10.size();
				return 1;
			} else {
				return 2;
			}
		} else {
			Interpreter.Interpreter_intStackSize -= 4;
			var3 = Interpreter.Interpreter_intStack[Interpreter.Interpreter_intStackSize];
			var4 = Interpreter.Interpreter_intStack[Interpreter.Interpreter_intStackSize + 1];
			int var9 = Interpreter.Interpreter_intStack[Interpreter.Interpreter_intStackSize + 2];
			var6 = Interpreter.Interpreter_intStack[Interpreter.Interpreter_intStackSize + 3];
			EnumDefinition var7 = UserComparator10.getEnum(var9);
			if (var3 == var7.inputType && var4 == var7.outputType) {
				for (int var8 = 0; var8 < var7.outputCount; ++var8) {
					if (var6 == var7.keys[var8]) {
						if (var4 == 115) {
							Interpreter.Interpreter_stringStack[++Interpreter.Interpreter_stringStackSize - 1] = var7.strVals[var8];
						} else {
							Interpreter.Interpreter_intStack[++Interpreter.Interpreter_intStackSize - 1] = var7.intVals[var8];
						}

						var7 = null;
						break;
					}
				}

				if (var7 != null) {
					if (var4 == 115) {
						Interpreter.Interpreter_stringStack[++Interpreter.Interpreter_stringStackSize - 1] = var7.defaultStr;
					} else {
						Interpreter.Interpreter_intStack[++Interpreter.Interpreter_intStackSize - 1] = var7.defaultInt;
					}
				}

				return 1;
			} else {
				if (var4 == 115) {
					Interpreter.Interpreter_stringStack[++Interpreter.Interpreter_stringStackSize - 1] = "null";
				} else {
					Interpreter.Interpreter_intStack[++Interpreter.Interpreter_intStackSize - 1] = 0;
				}

				return 1;
			}
		}
	}
}