public void SavePalette()
{
if (mainentry > 0xFF && mainentry < 0x26C)
{
int palBank;
// Compute palBank
palBank = mainentry - 0xFF;
// Compute palSubBank
rom.Seek(ROMInfo.palInfoAddress + (mainentry * 12));
// Compute palAddress
palAddress = ROMInfo.palStartAddress + rom.ReadWord(
ROMInfo.palStartAddress + 4 + (palBank << 2));
}
else
{
palAddress = ROMInfo.palStartAddress + rom.ReadWord(
ROMInfo.palStartAddress + 4) + (palSubBank * 32);
}
// Write the colours
rom.Seek(palAddress);
for (int i = 0; i < 16; i++)
{
rom.WriteColor(_pal[i]);
}
}
public byte[,] GetTile(int tileNum)
{
// Check if it's already in the cache
if (tileCache.ContainsKey(tileNum))
{
return(tileCache[tileNum]);
}
byte[,] pixels = new byte[8, 8];
//counter++;
// Get the address of the tile
int address = startPointer + (tileNum << 5);
// Parse the tile
byte tmp = 0;
rom.Seek(address);
for (int y = 0; y < 8; y++)
{
for (int x = 0; x < 8; x += 2)
{
tmp = (byte)rom.ReadByte();
pixels[y, x] = (byte)(tmp & 0xF);
pixels[y, x + 1] = (byte)((tmp >> 4) & 0xF);
}
}
tileCache.Add(tileNum, pixels);
return(pixels);
}
public void SaveProperties()
{
romFile.Seek(romAddress);
romFile.WriteByte((byte)OffsetY);
romFile.WriteByte((byte)OffsetX);
int tmp = (Tile & 0x3FF);
tmp |= (FlipX ? 1 << 10 : 0);
tmp |= (FlipY ? 1 << 11 : 0);
tmp |= ((Size & 3) << 12);
tmp |= ((Shape & 3) << 14);
romFile.WriteByte((byte)(tmp & 0xFF));
romFile.WriteByte((byte)((tmp >> 8) & 0xFF));
}
public Palette(ROMHandler romFile, int bank, int mainEntry, Color?transparentColor)
{
// Bank is irrelevant? Requires ROM research; check if the
// [0x100, 0x26B] custom range is applicable beyond bank 0
int palBank;
//int palAddress;
rom = romFile;
mainentry = mainEntry;
// Compute palBank
palBank = ((mainEntry > 0xFF) && (mainEntry < 0x26C)) ? mainEntry - 0xFF : 0;
// Compute palSubBank
rom.Seek(ROMInfo.palInfoAddress + (mainEntry * 12));
palSubBank = ((mainEntry > 0xFF) && (mainEntry < 0x26C)) ? 0 : (romFile.ReadByte() & 0xF);
// Compute palAddress
palAddress = ROMInfo.palStartAddress + rom.ReadWord(
ROMInfo.palStartAddress + 4 + (palBank * 4)) +
(palSubBank * 32);
// Parse the palette data
rom.Seek(palAddress);
for (int i = 0; i < 16; i++)
{
if (i == 0 && transparentColor != null)
{
_pal[i] = (Color)transparentColor;
}
else
{
_pal[i] = rom.ReadColor();
}
}
}
public Sprite(ROMHandler ROMFile, int Bank, int MainEntry, int SpriteEntry)
{
int infoAddress;
int entryCounter = 0;
romFile = ROMFile;
bank = Bank;
mainEntry = MainEntry;
spriteEntry = SpriteEntry;
// Instantiate the tileset and palette
tSet = new Tileset(romFile, bank, mainEntry);
pal = new Palette(romFile, bank, mainEntry);
// Parse the sub sprite information
infoAddress = ROMInfo.sprStartAddress[bank] + romFile.ReadWord(
ROMInfo.sprStartAddress[bank] + 4 + (mainEntry * 4)) +
8;
NumSprites = romFile.ReadHWord(infoAddress);
infoAddress += 2;
while (spriteEntry > entryCounter)
{
infoAddress += (romFile.ReadHWord(infoAddress) + 1) * 4;
entryCounter++;
}
romFile.Seek(infoAddress);
NumSubSprites = romFile.ReadHWord();
SubSprite retVal;
subSprites = new List <SubSprite>();
int tmp;
for (int i = 0; i < NumSubSprites; i++)
{
retVal = new SubSprite();
retVal.romAddress = (int)romFile.Address;
retVal.romFile = romFile;
retVal.OffsetY = romFile.ReadByte();
retVal.OffsetX = romFile.ReadByte();
if (retVal.OffsetY >= 0x80)
{
retVal.OffsetY -= 0x100; // Sign the offsets
}
if (retVal.OffsetX >= 0x80)
{
retVal.OffsetX -= 0x100;
}
tmp = romFile.ReadHWord();
retVal.Tile = (tmp & 0x3FF);
retVal.FlipX = (((tmp >> 10) & 1) == 1);
retVal.FlipY = (((tmp >> 11) & 1) == 1);
retVal.Width = sprWidthConst[(tmp >> 14) & 3, (tmp >> 12) & 3];
retVal.Height = sprHeightConst[(tmp >> 14) & 3, (tmp >> 12) & 3];
retVal.Size = (tmp >> 12) & 3;
retVal.Shape = (tmp >> 14) & 3;
retVal.tileSet = tSet;
retVal.pal = pal;
subSprites.Add(retVal);
}
}
