// CCTMXLayer - obtaining tiles/gids
CCSprite * CCTMXLayer::tileAt(const CCPoint& pos)
{
CCAssert( pos.x < m_tLayerSize.width && pos.y < m_tLayerSize.height && pos.x >=0 && pos.y >=0, "TMXLayer: invalid position");
CCAssert( m_pTiles && m_pAtlasIndexArray, "TMXLayer: the tiles map has been released");
CCSprite *tile = NULL;
unsigned int gid = this->tileGIDAt(pos);
// if GID == 0, then no tile is present
if( gid )
{
int z = (int)(pos.x + pos.y * m_tLayerSize.width);
tile = (CCSprite*) this->getChildByTag(z);
// tile not created yet. create it
if( ! tile )
{
CCRect rect = m_pTileSet->rectForGID(gid);
rect = CCRectMake(rect.origin.x / m_fContentScaleFactor, rect.origin.y / m_fContentScaleFactor, rect.size.width/ m_fContentScaleFactor, rect.size.height/ m_fContentScaleFactor);
tile = new CCSprite();
tile->initWithBatchNode(this, rect);
tile->setPosition(positionAt(pos));
tile->setVertexZ((float)vertexZForPos(pos));
tile->setAnchorPoint(CCPointZero);
tile->setOpacity(m_cOpacity);
unsigned int indexForZ = atlasIndexForExistantZ(z);
this->addSpriteWithoutQuad(tile, indexForZ, z);
tile->release();
}
}
return tile;
}
void CCTMXLayer::setupTileSprite(CCSprite* sprite, CCPoint pos, unsigned int gid, int offsetX, int offsetY)
{
CCPoint sppos = positionAt(pos);
sppos.x -= offsetX;
sppos.y -= offsetY;
sprite->setPosition(sppos);
sprite->setVertexZ((float)vertexZForPos(pos));
sprite->setAnchorPoint(CCPointZero);
sprite->setOpacity(m_cOpacity);
//issue 1264, flip can be undone as well
sprite->setFlipX(false);
sprite->setFlipY(false);
sprite->setRotation(0.0f);
sprite->setAnchorPoint(ccp(0,0));
// Rotation in tiled is achieved using 3 flipped states, flipping across the horizontal, vertical, and diagonal axes of the tiles.
if (gid & kCCTMXTileDiagonalFlag)
{
// put the anchor in the middle for ease of rotation.
sprite->setAnchorPoint(ccp(0.5f,0.5f));
sprite->setPosition(ccp(sppos.x + sprite->getContentSize().height/2,
sppos.y + sprite->getContentSize().width/2 ) );
unsigned int flag = gid & (kCCTMXTileHorizontalFlag | kCCTMXTileVerticalFlag );
// handle the 4 diagonally flipped states.
if (flag == kCCTMXTileHorizontalFlag)
{
sprite->setRotation(90.0f);
}
else if (flag == kCCTMXTileVerticalFlag)
{
sprite->setRotation(270.0f);
}
else if (flag == (kCCTMXTileVerticalFlag | kCCTMXTileHorizontalFlag) )
{
sprite->setRotation(90.0f);
sprite->setFlipX(true);
}
else
{
sprite->setRotation(270.0f);
sprite->setFlipX(true);
}
}
else
{
if (gid & kCCTMXTileHorizontalFlag)
{
sprite->setFlipX(true);
}
if (gid & kCCTMXTileVerticalFlag)
{
sprite->setFlipY(true);
}
}
}
// CCTMXLayer - adding helper methods
CCSprite * CCTMXLayer::insertTileForGID(unsigned int gid, const CCPoint& pos)
{
CCRect rect = m_pTileSet->rectForGID(gid);
rect = CCRectMake(rect.origin.x / m_fContentScaleFactor, rect.origin.y / m_fContentScaleFactor, rect.size.width/ m_fContentScaleFactor, rect.size.height/ m_fContentScaleFactor);
int z = (int)(pos.x + pos.y * m_tLayerSize.width);
if( ! m_pReusedTile )
{
m_pReusedTile = new CCSprite();
m_pReusedTile->initWithBatchNode(this, rect);
}
else
{
m_pReusedTile->initWithBatchNode(this, rect);
}
m_pReusedTile->setPositionInPixels(positionAt(pos));
m_pReusedTile->setVertexZ((float)vertexZForPos(pos));
m_pReusedTile->setAnchorPoint(CCPointZero);
m_pReusedTile->setOpacity(m_cOpacity);
// get atlas index
unsigned int indexForZ = atlasIndexForNewZ(z);
// Optimization: add the quad without adding a child
this->addQuadFromSprite(m_pReusedTile, indexForZ);
// insert it into the local atlasindex array
ccCArrayInsertValueAtIndex(m_pAtlasIndexArray, (void*)z, indexForZ);
// update possible children
if (m_pChildren && m_pChildren->count()>0)
{
CCObject* pObject = NULL;
CCARRAY_FOREACH(m_pChildren, pObject)
{
CCSprite* pChild = (CCSprite*) pObject;
if (pChild)
{
unsigned int ai = pChild->getAtlasIndex();
if ( ai >= indexForZ )
{
pChild->setAtlasIndex(ai+1);
}
}
}
// CCTMXLayer - obtaining tiles/gids
CCSprite * CCTMXLayer::tileAt(const CCPoint& pos)
{
CCAssert(pos.x < m_tLayerSize.width && pos.y < m_tLayerSize.height && pos.x >=0 && pos.y >=0, "TMXLayer: invalid position");
CCAssert(m_pTiles, "TMXLayer: the tiles map has been released");
CCSprite *tile = NULL;
unsigned int gid = this->tileGIDAt(pos);
// if GID == 0, then no tile is present
if (gid)
{
int z = (int)(pos.x + pos.y * m_tLayerSize.width);
tile = (CCSprite*) this->getChildByTag(z);
// tile not created yet. create it
if (! tile)
{
// when not using quad optimization, tile must exist
CCAssert(m_pAtlasIndexArray, "Quad optimization but no m_pAtlasIndexArray");
CCRect rect = m_pTileSet->rectForGID(gid);
rect = CC_RECT_PIXELS_TO_POINTS(rect);
tile = new CCSprite();
tile->initWithTexture(this->getTexture(), rect);
tile->setBatchNode(this);
tile->setPosition(positionAt(pos));
tile->setVertexZ((float)vertexZForPos(pos));
tile->setAnchorPoint(CCPointZero);
tile->setOpacity(m_cOpacity);
unsigned int indexForZ = atlasIndexForExistantZ(z);
this->addSpriteWithoutQuad(tile, indexForZ, z);
tile->release();
}
}
return tile;
}