public Gfx(Rom rom, int pointer, int width)
{
Width = width;
this.rom = rom;
this.pointer = pointer;
// assume graphics compressed
int offset = rom.ReadPtr(pointer);
origLen = Compress.DecompLZ77(rom.Data, offset, out Data);
}
public void DecompLZ77Test()
{
byte[] input = new byte[]
{
0x10, 0x0E, 0, 0,
0x00, 1, 2, 3, 4, 5, 0, 1, 2,
0xC0, 0x00, 0x02, 0x00, 0x08
};
byte[] actual;
int compLen = Compress.DecompLZ77(input, 0, out actual);
Assert.AreEqual(0x12, compLen);
byte[] expected = new byte[]
{
1, 2, 3, 4, 5, 0, 1, 2, 0, 1, 2, 3, 4, 5
};
CollectionAssert.AreEqual(expected, actual);
}
// constructor
public Minimap(Rom rom, byte areaID)
{
this.rom = rom;
AreaID = areaID;
try
{
// decompress map data
pointer = Rom.MinimapDataOffset + AreaID * 4;
int offset = rom.ReadPtr(pointer);
origLen = Compress.DecompLZ77(rom.Data, offset, out byte[] decompData);
// copy to ushort array
data = new ushort[0x400];
Buffer.BlockCopy(decompData, 0, data, 0, decompData.Length);
}
catch (IndexOutOfRangeException)
{
throw new Exception("Bad minimap data");
}
}
public Tilemap(Rom rom, int pointer, bool compressed = false)
{
this.rom = rom;
this.pointer = pointer;
this.compressed = compressed;
if (compressed)
{
int offset = rom.ReadPtr(pointer);
origLen = Compress.DecompLZ77(rom.Data, offset, out byte[] decompData);
data = Arrays.ByteToUshort(decompData);
}
else
{
int offset = rom.ReadPtr(pointer);
byte rows = rom.Read8(offset + 1);
origLen = rows * 0x40 + 1;
byte[] bytes = new byte[origLen * 2];
rom.RomToArray(bytes, offset, 0, bytes.Length);
data = Arrays.ByteToUshort(bytes);
}
}
