private static void RelocationParse_cmd24(ROM rom, RelocationTable table, RegionParseState state)
{
int behaviour = rom.Read32(0x14);
if (behaviour == scrollBehaviour || behaviour == scrollBehaviourLegacy)
{
int address = 0;
int intX = rom.Read16(0x04);
float X = intX;
byte[] Xdata = BitConverter.GetBytes(X);
address += Xdata[2] * 0x10000;
address += (ushort)rom.Read16(0x10);
int segmentedAddress = address - 0x20000 + 0x0E000000;
int newSegmentedAddress = table.Relocate((int)state.area, segmentedAddress);
if (newSegmentedAddress == -1)
{
throw new ArgumentException("Failed to relocate scrolling texture!");
}
int newAddress = newSegmentedAddress - 0x0E000000 + 0x20000;
Xdata[2] = (byte)((newAddress >> 16) & 0xFF);
float newX = BitConverter.ToSingle(Xdata, 0);
int newIntX = Convert.ToInt16(newX);
rom.Write16(newIntX, 0x04);
rom.Write16(newAddress & 0xFFFF, 0x10);
rom.Write32(scrollBehaviourLegacy, 0x14);
}
}
private static void FixParse_cmdBC(ROM rom, DisplayListRegion region, RegionFixState state)
{
if (state.config.disableFog)
{
rom.Write64(0);
return;
}
if (state.config.nerfFog)
{
float A = rom.Read16(4);
float B = rom.Read16(6);
float min = 500 * (1 - B / A);
float max = 128000 / A + min;
// nerf fog
min += 5;
A = 128000 / (max - min);
B = (500 - min) * 256 / (max - min);
int Aint = (int)A;
int Bint = (int)B;
rom.Write16(Aint, 4);
rom.Write16(Bint, 6);
}
}
public override void WriteScroll(ROM rom)
{
rom.PushOffset(romOffset);
rom.Write8(acts, 0x02);
rom.Write16(X, 0x04);
rom.Write16(Y, 0x06);
rom.Write32(segmentedAddress, 0x10);
rom.Write32(behavior, 0x14);
rom.PopOffset();
}
public override void WriteScroll(ROM rom)
{
rom.PushOffset(romOffset);
rom.Write8(acts, 0x02);
rom.Write16(X, 0x04);
rom.Write16(Y, 0x06);
rom.Write16(Z, 0x08);
rom.Write16(BParam, 0x10);
rom.Write16(BParam2, 0x12);
rom.Write32(behavior, 0x14);
rom.PopOffset();
}
