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move N64 decoder logic to its own class

This commit is contained in:
adelikat 2020-02-29 12:03:30 -06:00
parent 1c7c58189e
commit 59f40ec3d5
2 changed files with 63 additions and 53 deletions
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53
BizHawk.Client.Common/cheats/N64GameSharkDecoder.cs Normal file
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@ -0,0 +1,53 @@
using System;
using System.Globalization;
namespace BizHawk.Client.Common.cheats
{
public class N64GameSharkDecoder
{
private readonly string _code;
public N64GameSharkDecoder(string code)
{
_code = code;
Decode();
}
public int Address { get; private set; }
public int Value { get; private set; }
public WatchSize Size { get; private set; } = WatchSize.Byte;
public void Decode()
{
if (_code == null)
{
throw new ArgumentNullException(nameof(_code));
}
if (_code.IndexOf(" ") != 8)
{
throw new InvalidOperationException("All N64 GameShark Codes need to contain a space after the eighth character");
}
if (_code.Length != 13)
{
throw new InvalidOperationException("All N64 GameShark Codes need to be 13 characters in length.");
}
Size = _code.Substring(0, 2) switch
{
"80" => WatchSize.Byte,
"81" => WatchSize.Word,
"88" => WatchSize.Byte,
"89" => WatchSize.Word,
"A0" => WatchSize.Byte,
"A1" => WatchSize.Word,
_ => WatchSize.Byte,
};
var s = _code.Remove(0, 2);
Address = int.Parse(s.Remove(6, 5), NumberStyles.HexNumber);
Value = int.Parse(s.Remove(0, 7), NumberStyles.HexNumber);
}
}
}

63
BizHawk.Client.EmuHawk/tools/GameShark.cs
View File

@ -1793,10 +1793,10 @@ namespace BizHawk.Client.EmuHawk
// The code was Encrypted
// Decrypt before we do stuff.
// Action Replay Max decryption Method
var _parseString = singleCheat;
var parseString = singleCheat;
var sum = 0xC6EF3720;
var op1 = uint.Parse(_parseString.Remove(8, 9), NumberStyles.HexNumber);
var op2 = uint.Parse(_parseString.Remove(0, 9), NumberStyles.HexNumber);
var op1 = uint.Parse(parseString.Remove(8, 9), NumberStyles.HexNumber);
var op2 = uint.Parse(parseString.Remove(0, 9), NumberStyles.HexNumber);
// Tiny Encryption Algorithm
int j;
@ -2233,34 +2233,14 @@ namespace BizHawk.Client.EmuHawk
return;
}
// This determines what kind of Code we have
var _testo = cheat.Remove(2, 11);
// We need to determine what kind of cheat this is.
// I need to determine if this is a Byte or Word.
switch (_testo)
switch (cheat.Remove(0, 2))
{
// 80 and 81 are the most common, so let's not get all worried.
case "80":
_byteSize = 8;
break;
case "81":
_byteSize = 16;
break;
// Case A0 and A1 means "Write to Uncached address.
case "A0":
_byteSize = 8;
break;
case "A1":
_byteSize = 16;
break;
// Do we support the GameShark Button? No. But these cheats, can be toggled. Which "Counts"
// <Ocean_Prince> Consequences be damned!
case "88":
_byteSize = 8;
break;
case "89":
_byteSize = 16;
break;
// These are compare Address X to Value Y, then apply Value B to Address A
// This is not supported, yet
@ -2275,7 +2255,7 @@ namespace BizHawk.Client.EmuHawk
case "EE":
case "DD":
case "CC":
MessageBox.Show("The code you entered is for Disabling the Expansion Pak. This is not allowed by this tool.", "Input Error", MessageBoxButtons.OK, MessageBoxIcon.Information);
InputError("The code you entered is for Disabling the Expansion Pak. This is not allowed by this tool.");
return;
// Enable Code
// Not Necessary? Think so?
@ -2287,45 +2267,22 @@ namespace BizHawk.Client.EmuHawk
case "2A":
case "3C":
case "FF":
MessageBox.Show("The code you entered is not needed by Bizhawk.", "Input Error", MessageBoxButtons.OK, MessageBoxIcon.Information);
InputError("The code you entered is not needed by Bizhawk.");
return;
// TODO: Make Patch Code (5000XXYY) work.
case "50":
MessageBox.Show("The code you entered is not supported by this tool. Please Submit the Game's Name, Cheat/Code and Purpose to the BizHawk forums.", "Tool Error", MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
default:
MessageBox.Show("The GameShark code entered is not a recognized format.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
InputError("The GameShark code entered is not a recognized format.");
return;
}
// Sample Input for N64:
// 8133B21E 08FF
// Becomes:
// Address 33B21E
// Value 08FF
// Note, 80XXXXXX 00YY
// Is Byte, not Word
// Remove the 80 Octect
var _parseString = cheat.Remove(0, 2);
// Get RAM Address
_ramAddress = _parseString.Remove(6, 5);
// Get RAM Value
_ramValue = _parseString.Remove(0, 7);
try
{
if (_byteSize == 8)
{
var watch = Watch.GenerateWatch(MemoryDomains["RDRAM"], long.Parse(_ramAddress, NumberStyles.HexNumber), WatchSize.Byte, Common.DisplayType.Hex, true, txtDescription.Text);
Global.CheatList.Add(new Cheat(watch, int.Parse(_ramValue, NumberStyles.HexNumber)));
}
else if (_byteSize == 16)
{
var watch = Watch.GenerateWatch(MemoryDomains["RDRAM"], long.Parse(_ramAddress, NumberStyles.HexNumber), WatchSize.Word, Common.DisplayType.Hex, true, txtDescription.Text);
Global.CheatList.Add(new Cheat(watch, int.Parse(_ramValue, NumberStyles.HexNumber)));
}
var decoder = new N64GameSharkDecoder(cheat);
var watch = Watch.GenerateWatch(MemoryDomains["RDRAM"], decoder.Address, decoder.Size, Common.DisplayType.Hex, true, txtDescription.Text);
Global.CheatList.Add(new Cheat(watch, int.Parse(_ramValue, NumberStyles.HexNumber)));
}
catch (Exception ex)
{