private void QueueDataSegment(IList <levelDataTypes> moveList, pRom dest)
{
int bytesUsed = 0;
for (int i = 0; i < moveList.Count; i++)
{
var move = moveList[i];
var datasegment = dataSegments[(int)move];
QueueMove(datasegment, ref dest, ref bytesUsed);
}
}
public PointerTable(MetroidRom rom, pRom tableLocation, int tableSize, bool use24BitPointers)
{
this.Offset = tableLocation;
this.Rom = rom;
this.Count = tableSize;
this.using24BitPointers = use24BitPointers;
if (use24BitPointers)
{
EntrySize = 3;
pointerOffset = 1;
}
}
/// <summary>
/// Automatically adjusts ROM offsets that refer to the main PRG bank if
/// the Expando property returns true.
/// </summary>
/// <param name="offset"></param>
/// <returns></returns>
protected pRom FormatAdjust(pRom offset)
{
if (offset > 0x1C010)
{
if (RomFormat == RomFormats.Expando)
{
offset += expandoPrgOffset;
}
else
{
offset += mmc3PrgOffset;
}
}
return(offset);
}
} // function
public static void ExtractSingleTile(Bitmap b, Point tileLocation, byte[] data, pRom offset)
{
BitmapData lockData = b.LockBits(new Rectangle(tileLocation.X, tileLocation.Y, 8, 8), ImageLockMode.WriteOnly, PixelFormat.Format8bppIndexed);
pRom outputOffset = pRom.Null;
byte[] output = new byte[lockData.Stride * 8];
// Image data in NES rom has 2 planes. This is the first
for (int PixelY = 0; PixelY < 8; PixelY += 1)
{
output[outputOffset + 7] = (byte)(data[offset] & 0x01);
output[outputOffset + 6] = (byte)((data[offset] & 0x02) >> 1);
output[outputOffset + 5] = (byte)((data[offset] & 0x04) >> 2);
output[outputOffset + 4] = (byte)((data[offset] & 0x08) >> 3);
output[outputOffset + 3] = (byte)((data[offset] & 0x10) >> 4);
output[outputOffset + 2] = (byte)((data[offset] & 0x20) >> 5);
output[outputOffset + 1] = (byte)((data[offset] & 0x40) >> 6);
output[outputOffset + 0] = (byte)((data[offset] & 0x80) >> 7);
offset++;
outputOffset += lockData.Stride;
}
// Second plane.
outputOffset = pRom.Null;
for (int PixelY = 0; PixelY < 8; PixelY += 1)
{
output[outputOffset + 7] |= (byte)((data[offset] & 0x01) << 1);
output[outputOffset + 6] |= (byte)((data[offset] & 0x02));
output[outputOffset + 5] |= (byte)((data[offset] & 0x04) >> 1);
output[outputOffset + 4] |= (byte)((data[offset] & 0x08) >> 2);
output[outputOffset + 3] |= (byte)((data[offset] & 0x10) >> 3);
output[outputOffset + 2] |= (byte)((data[offset] & 0x20) >> 4);
output[outputOffset + 1] |= (byte)((data[offset] & 0x40) >> 5);
output[outputOffset + 0] |= (byte)((data[offset] & 0x80) >> 6);
offset++;
outputOffset += lockData.Stride;
}
Marshal.Copy(output, 0, lockData.Scan0, output.Length);
b.UnlockBits(lockData);
}
public pCpu CreatePointer(pRom offset)
{
if (offset >= rom.FixedBank.Offset) // PRG ROM (mapped to 0xC000-0xFFFF)
{
int relativeOffset = offset - rom.FixedBank.Offset;
if (offset > 0x3FFF)
{
throw new ArgumentException("Offset was beyond end of last PRG bank.");
}
return(new pCpu((ushort)(0xC000 + offset)));
}
else // Level data ROM (mapped to 0x8000-0xBFFF)
{
int relativeOffset = offset - Bank.Offset;
if (relativeOffset < 0 || relativeOffset >= 0x4000)
{
throw new ArgumentException("Offset does not refer to fixed PRG bank or this level's data bank.");
}
return(new pCpu((ushort)(relativeOffset | 0x8000)));
}
}
public void SetPointers(Level level, pCpu ppPTable, int pointerCount)
{
this.pPTable = ppPTable.AsPRom(level);
this.ptableCount = pointerCount;
this.pSource = level.DerefHandle(ppPTable);
}
public pCpu(pRom romOffset, Level level)
: this(level.CreatePointer(romOffset).Value)
{
}
/// <summary>
/// Returns the offset of data that is identified by the pointer that is found at
/// the offset 'pOffset' specifies.
/// </summary>
/// <param name="pOffset">The address of the pointer to resolve.</param>
/// <returns></returns>
public pCpu DerefHandleCpu(pRom pOffset)
{
return(new pCpu(data, (int)pOffset));
}
/// <summary>
/// Returns the offset of data that is identified by the pointer that is found at
/// the offset 'pOffset' specifies.
/// </summary>
/// <param name="pOffset">The address of the pointer to resolve.</param>
/// <returns></returns>
public pRom DerefHandle(pRom pOffset)
{
pCpu referencedPointer = new pCpu(data, (int)pOffset);
return(ToPRom(referencedPointer));
}
internal void WritePointer(pRom offset, pCpu pointer)
{
data[(int)offset] = pointer.Byte1;
data[(int)offset + 1] = pointer.Byte2;
}
/// <summary>
/// Gets a pointer from ROM data at the specified ROM offset.
/// </summary>
/// <param name="entryOffset"></param>
/// <returns></returns>
internal pCpu GetPointer(pRom offset)
{
return(new pCpu(data, (int)offset));
}
/// <summary>
/// Creates a patch segment with the same data at a different offset.
/// </summary>
public PatchSegment Duplicate(pRom offset)
{
return(new PatchSegment(offset, this.data));
}
public PatchSegment(pRom offset, byte[] data)
{
this.TargetOffset = offset;
this.data = data;
}
public void LoadPattern(pRom offset)
{
patternOffset = offset;
}
public PointerTable(MetroidRom rom, pRom tableLocation, int tableSize)
{
this.Offset = tableLocation;
this.Rom = rom;
this.Count = tableSize;
}