// used only when parsing the map. useless after the map was parsed
// since lot's of assumptions are no longer true
Sprite * TMXLayer::appendTileForGID(int gid, const Point& pos)
{
if (gid != 0 && (static_cast<int>((gid & kFlippedMask)) - _tileSet->_firstGid) >= 0)
{
Rect rect = _tileSet->rectForGID(gid);
rect = CC_RECT_PIXELS_TO_POINTS(rect);
intptr_t z = (intptr_t)(pos.x + pos.y * _layerSize.width);
Sprite *tile = reusedTileWithRect(rect);
setupTileSprite(tile ,pos ,gid);
// optimization:
// The difference between appendTileForGID and insertTileforGID is that append is faster, since
// it appends the tile at the end of the texture atlas
ssize_t indexForZ = _atlasIndexArray->num;
// don't add it using the "standard" way.
insertQuadFromSprite(tile, indexForZ);
// append should be after addQuadFromSprite since it modifies the quantity values
ccCArrayInsertValueAtIndex(_atlasIndexArray, (void*)z, indexForZ);
return tile;
}
return nullptr;
}
// used only when parsing the map. useless after the map was parsed
// since lot's of assumptions are no longer true
Sprite * TMXLayer::appendTileForGID(uint32_t gid, const Vec2& pos)
{
if (gid != 0 && (static_cast<int>((gid & kTMXFlippedMask)) - _tileSet->_firstGid) >= 0)
{
Rect rect = _tileSet->getRectForGID(gid);
rect = CC_RECT_PIXELS_TO_POINTS(rect);
// Z could be just an integer that gets incremented each time it is called.
// but that wouldn't work on layers with empty tiles.
// and it is IMPORTANT that Z returns an unique and bigger number than the previous one.
// since _atlasIndexArray must be ordered because `bsearch` is used to find the GID for
// a given Z. (github issue #16512)
intptr_t z = getZForPos(pos);
Sprite *tile = reusedTileWithRect(rect);
setupTileSprite(tile ,pos ,gid);
// optimization:
// The difference between appendTileForGID and insertTileforGID is that append is faster, since
// it appends the tile at the end of the texture atlas
ssize_t indexForZ = _atlasIndexArray->num;
// don't add it using the "standard" way.
insertQuadFromSprite(tile, indexForZ);
// append should be after addQuadFromSprite since it modifies the quantity values
ccCArrayInsertValueAtIndex(_atlasIndexArray, (void*)z, indexForZ);
// Validation for issue #16512
CCASSERT(_atlasIndexArray->num == 1 ||
_atlasIndexArray->arr[_atlasIndexArray->num-1] > _atlasIndexArray->arr[_atlasIndexArray->num-2], "Invalid z for _atlasIndexArray");
return tile;
}
return nullptr;
}
