ChunkBlock GhostRoom::readChunkBlock(Common::File &file) {
ChunkBlock cb;
cb._flavour = (Flavour)file.readByte();
cb._x = file.readSint16LE();
cb._y = file.readSint16LE();
cb._width = file.readSint16LE();
cb._height = file.readSint16LE();
cb._size = file.readSint32LE();
return cb;
}
void Background::loadSprites(byte number) {
Common::File f;
_filename = _filename.format("chunk%d.avd", number);
if (!f.open(_filename))
return; // We skip because some rooms don't have sprites in the background.
f.seek(44);
_spriteNum = f.readByte();
for (int i = 0; i < _spriteNum; i++)
_offsets[i] = f.readSint32LE();
for (int i = 0; i < _spriteNum; i++) {
f.seek(_offsets[i]);
SpriteType sprite;
sprite._type = (PictureType)(f.readByte());
sprite._x = f.readSint16LE();
sprite._y = f.readSint16LE();
sprite._width = f.readSint16LE();
sprite._height = f.readSint16LE();
sprite._size = f.readSint32LE();
bool natural = f.readByte();
bool memorize = f.readByte();
if (memorize) {
_sprites[i]._x = sprite._x;
_sprites[i]._width = sprite._width;
_sprites[i]._y = sprite._y;
_sprites[i]._height = sprite._height;
_sprites[i]._type = sprite._type;
if (natural)
_vm->_graphics->getNaturalPicture(_sprites[i]);
else {
_sprites[i]._size = sprite._size;
_sprites[i]._picture = _vm->_graphics->loadPictureRaw(f, _sprites[i]._width * 8, _sprites[i]._height + 1);
}
} else
_sprites[i]._x = kOnDisk;
}
f.close();
}
/**
* Draw background animation
* @remarks Originally called 'show_one'
*/
void Background::draw(int16 destX, int16 destY, byte sprId) {
assert(sprId < 40);
if (_sprites[sprId]._x > kOnDisk) {
if (destX < 0) {
destX = _sprites[sprId]._x * 8;
destY = _sprites[sprId]._y;
}
drawSprite(destX, destY, _sprites[sprId]);
} else {
Common::File f;
if (!f.open(_filename)) // Filename was set in loadBackgroundSprites().
return; // We skip because some rooms don't have sprites in the background.
f.seek(_offsets[sprId]);
SpriteType sprite;
sprite._type = (PictureType)(f.readByte());
sprite._x = f.readSint16LE();
sprite._y = f.readSint16LE();
sprite._width = f.readSint16LE();
sprite._height = f.readSint16LE();
sprite._size = f.readSint32LE();
f.skip(2); // Natural and Memorize are used in Load()
sprite._picture = _vm->_graphics->loadPictureRaw(f, sprite._width * 8, sprite._height + 1);
if (destX < 0) {
destX = sprite._x * 8;
destY = sprite._y;
}
drawSprite(destX, destY, sprite);
sprite._picture.free();
f.close();
}
}
