/// <summary>
/// Generates codes based on context.
/// </summary>
public static IList<string> GenerateCodes( Context context, IList<byte> oldBytes, IList<byte> newBytes, UInt32 offset, CodeEnabledOnlyWhen when )
{
switch( context )
{
case Context.US_PSP:
return GeneratePSPCodes( oldBytes, newBytes, offset );
case Context.US_PSX:
return GeneratePSXCodes( oldBytes, newBytes, offset, when );
}
return new List<string>();
}
/// <summary>
/// Generates codes based on context.
/// </summary>
public static IList <string> GenerateCodes(Context context, IList <byte> oldBytes, IList <byte> newBytes, UInt32 offset, CodeEnabledOnlyWhen when)
{
switch (context)
{
case Context.US_PSP:
return(GeneratePSPCodes(oldBytes, newBytes, offset));
case Context.US_PSX:
return(GeneratePSXCodes(oldBytes, newBytes, offset, when));
}
return(new List <string>());
}
private static IList<string> GeneratePSXCodes(IList<byte> oldBytes, IList<byte> newBytes, UInt32 offset, CodeEnabledOnlyWhen when)
{
List<string> codes = new List<string>();
bool[] patched = new bool[newBytes.Count];
// Generate 80h codes
for (int i = (int)(offset % 2); i < newBytes.Count; i += 2)
{
if (((i + 1) < newBytes.Count) &&
((newBytes[i] != oldBytes[i]) &&
(newBytes[i + 1] != oldBytes[i + 1])) &&
(!patched[i]) && (!patched[i + 1]))
{
UInt32 addy = (UInt32)(offset + i);
string code = string.Format("80{0:X6} {2:X2}{1:X2}",
addy, newBytes[i], newBytes[i + 1]);
codes.Add(code);
patched[i] = true;
patched[i + 1] = true;
}
}
// Generate 40h codes
for (int i = 0; i < newBytes.Count; i++)
{
if ((newBytes[i] != oldBytes[i]) && (!patched[i]))
{
UInt32 addy = (UInt32)(offset + i);
string code = string.Format("30{0:X6} 00{1:X2}",
addy, newBytes[i]);
codes.Add(code);
patched[i] = true;
}
}
// Sort them
codes.Sort((s, t) => s.Substring(2).CompareTo(t.Substring(2)));
// Insert conditionals if necessary
const string worldConditional = "7013B900 F400";
const string battleConditional = "7014E61C F400";
if (when != CodeEnabledOnlyWhen.Any)
{
string conditional =
when == CodeEnabledOnlyWhen.Battle ? battleConditional : worldConditional;
List<string> realCodes = new List<string>(codes.Count * 2);
foreach (string code in codes)
{
realCodes.Add(conditional);
realCodes.Add(code);
}
codes = realCodes;
}
return codes.AsReadOnly();
}
private static IList <string> GeneratePSXCodes(IList <byte> oldBytes, IList <byte> newBytes, UInt32 offset, CodeEnabledOnlyWhen when)
{
List <string> codes = new List <string>();
bool[] patched = new bool[newBytes.Count];
// Generate 80h codes
for (int i = (int)(offset % 2); i < newBytes.Count; i += 2)
{
if (((i + 1) < newBytes.Count) &&
((newBytes[i] != oldBytes[i]) &&
(newBytes[i + 1] != oldBytes[i + 1])) &&
(!patched[i]) && (!patched[i + 1]))
{
UInt32 addy = (UInt32)(offset + i);
string code = string.Format("80{0:X6} {2:X2}{1:X2}",
addy, newBytes[i], newBytes[i + 1]);
codes.Add(code);
patched[i] = true;
patched[i + 1] = true;
}
}
// Generate 40h codes
for (int i = 0; i < newBytes.Count; i++)
{
if ((newBytes[i] != oldBytes[i]) && (!patched[i]))
{
UInt32 addy = (UInt32)(offset + i);
string code = string.Format("30{0:X6} 00{1:X2}",
addy, newBytes[i]);
codes.Add(code);
patched[i] = true;
}
}
// Sort them
codes.Sort((s, t) => s.Substring(2).CompareTo(t.Substring(2)));
// Insert conditionals if necessary
//const string worldConditional = "7013B900 F400";
//const string battleConditional = "7014E61C F400";
if (when != CodeEnabledOnlyWhen.Any)
{
//string conditional = (when == CodeEnabledOnlyWhen.Battle) ? battleConditional : worldConditional;
string conditional = ConditionalCodeMap[when];
List <string> realCodes = new List <string>(codes.Count * 2);
foreach (string code in codes)
{
realCodes.Add(conditional);
realCodes.Add(code);
}
codes = realCodes;
}
return(codes.AsReadOnly());
}
