public void TestRepeater()
{
var gs = new GamesharkCode(0x50002040, 0xFFF0);
var repeater = new GamesharkCode.Repeater(gs);
Assert.AreEqual(0x20, repeater.Count);
Assert.AreEqual(0x40, repeater.AddressStep);
Assert.AreEqual(-16, repeater.ValueStep);
}
public static IEnumerable <GamesharkCode> ExpandRepeaters(this IEnumerable <GamesharkCode> codes)
{
GamesharkCode?preceding = null,
repeater = null;
foreach (var code in codes)
{
if (repeater.HasValue)
{
var x = new GamesharkCode.Repeater(repeater.Value);
var canBeRepeated = preceding?.IsConditional == true;
for (var i = 0; i < x.Count; i++)
{
if (canBeRepeated)
{
yield return(preceding.Value);
}
yield return(new GamesharkCode(
code.CodeType,
(UInt32)(code.Address + i * x.AddressStep),
(UInt16)(code.Value + i * x.ValueStep)
));
}
preceding = null;
repeater = null;
continue;
}
else if (code.CodeType == GamesharkCode.Type.Repeater)
{
repeater = code;
continue;
}
if (!code.IsConditional)
{
yield return(code);
}
preceding = code;
}
}