public static void SaveBlocksToRom(Rom rom, int course)
{
//grab all levels data at once
byte[][] allTiles = new byte[0x2B][];
for (int i = 0; i < 0x2B; i++)
{
rom.SetBank(0xC);
int headerposition = rom.ReadWord(0x4560 + i * 2);
int tilebank = rom.ReadByte(headerposition + 9);
int tilesubbank = rom.ReadByte(headerposition + 10);
rom.SetBank(tilebank);
int tilePosition = rom.ReadWord(0x4000 + tilesubbank * 2);
byte[] tileData = RLEDecompressTiles(rom, tilePosition);
allTiles[i] = tileData;
}
Array.Copy(levelData, allTiles[course], 0x3000);
//write them back to ROM
byte bank = 0x20;
byte subbank = 0;
int writePosition = 0x4040; //first 64 bytes are reserved for level pointers
for (int i = 0; i < 0x2B; i++)
{
byte[] tileData = RLECompressTiles(allTiles[i]).ToArray();
if ((writePosition + tileData.Length) >= 0x8000 || subbank >= 32)
{
//no more space, switch to another bank
bank++;
subbank = 0;
writePosition = 0x4040;
}
//write data to bank
rom.SetBank(bank);
rom.WriteWord(0x4000 + subbank * 2, (ushort)writePosition);
rom.WriteBytes(writePosition, tileData);
//update level header
rom.SetBank(0xC);
int headerposition = rom.ReadWord(0x4560 + i * 2);
rom.WriteByte(headerposition + 9, bank);
rom.WriteByte(headerposition + 10, subbank);
subbank++;
writePosition += tileData.Length;
}
}
public static void SaveBlocksToRom(Rom rom, int course)
{
//grab all levels data at once
byte[][] allTiles = new byte[0x2B][];
for(int i = 0 ; i < 0x2B ; i++)
{
rom.SetBank(0xC);
int headerposition = rom.ReadWord(0x4560 + i * 2);
int tilebank = rom.ReadByte(headerposition + 9);
int tilesubbank = rom.ReadByte(headerposition + 10);
rom.SetBank(tilebank);
int tilePosition = rom.ReadWord(0x4000 + tilesubbank * 2);
byte[] tileData = RLEDecompressTiles(rom, tilePosition).Take(0x3000).ToArray();
allTiles[i] = tileData;
}
Array.Copy(levelData, allTiles[course], 0x3000);
//write them back to ROM
byte bank = 0x20;
byte subbank = 0;
int writePosition = 0x4040; //first 64 bytes are reserved for level pointers
for(int i = 0 ; i < 0x2B ; i++)
{
byte[] tileData = RLECompressTiles(allTiles[i]).ToArray();
if((writePosition + tileData.Length) >= 0x8000 || subbank >= 32)
{
//no more space, switch to another bank
bank++;
subbank = 0;
writePosition = 0x4040;
}
//write data to bank
rom.SetBank(bank);
rom.WriteWord(0x4000 + subbank * 2, (ushort)writePosition);
rom.WriteBytes(writePosition, tileData);
//update level header
rom.SetBank(0xC);
int headerposition = rom.ReadWord(0x4560 + i * 2);
rom.WriteByte(headerposition + 9, bank);
rom.WriteByte(headerposition + 10, subbank);
subbank++;
writePosition += tileData.Length;
}
}
