// TMXLayer - obtaining tiles/gids
Sprite * TMXLayer::getTileAt(const Point& pos)
{
CCASSERT(pos.x < _layerSize.width && pos.y < _layerSize.height && pos.x >=0 && pos.y >=0, "TMXLayer: invalid position");
CCASSERT(_tiles && _atlasIndexArray, "TMXLayer: the tiles map has been released");
Sprite *tile = nullptr;
int gid = this->getTileGIDAt(pos);
// if GID == 0, then no tile is present
if (gid)
{
int z = (int)(pos.x + pos.y * _layerSize.width);
tile = static_cast<Sprite*>(this->getChildByTag(z));
// tile not created yet. create it
if (! tile)
{
Rect rect = _tileSet->rectForGID(gid);
rect = CC_RECT_PIXELS_TO_POINTS(rect);
tile = Sprite::createWithTexture(this->getTexture(), rect);
tile->setBatchNode(this);
tile->setPosition(getPositionAt(pos));
tile->setVertexZ((float)getVertexZForPos(pos));
tile->setAnchorPoint(Point::ZERO);
tile->setOpacity(_opacity);
ssize_t indexForZ = atlasIndexForExistantZ(z);
this->addSpriteWithoutQuad(tile, static_cast<int>(indexForZ), z);
}
}
return tile;
}
void TMXLayer::setupTileSprite(Sprite* sprite, Point pos, unsigned int gid)
{
sprite->setPosition(getPositionAt(pos));
sprite->setVertexZ((float)getVertexZForPos(pos));
sprite->setAnchorPoint(Point::ZERO);
sprite->setOpacity(m_cOpacity);
//issue 1264, flip can be undone as well
sprite->setFlippedX(false);
sprite->setFlippedY(false);
sprite->setRotation(0.0f);
sprite->setAnchorPoint(Point(0,0));
// Rotation in tiled is achieved using 3 flipped states, flipping across the horizontal, vertical, and diagonal axes of the tiles.
if (gid & kTMXTileDiagonalFlag)
{
// put the anchor in the middle for ease of rotation.
sprite->setAnchorPoint(Point(0.5f,0.5f));
sprite->setPosition(Point(getPositionAt(pos).x + sprite->getContentSize().height/2,
getPositionAt(pos).y + sprite->getContentSize().width/2 ) );
unsigned int flag = gid & (kTMXTileHorizontalFlag | kTMXTileVerticalFlag );
// handle the 4 diagonally flipped states.
if (flag == kTMXTileHorizontalFlag)
{
sprite->setRotation(90.0f);
}
else if (flag == kTMXTileVerticalFlag)
{
sprite->setRotation(270.0f);
}
else if (flag == (kTMXTileVerticalFlag | kTMXTileHorizontalFlag) )
{
sprite->setRotation(90.0f);
sprite->setFlippedX(true);
}
else
{
sprite->setRotation(270.0f);
sprite->setFlippedX(true);
}
}
else
{
if (gid & kTMXTileHorizontalFlag)
{
sprite->setFlippedX(true);
}
if (gid & kTMXTileVerticalFlag)
{
sprite->setFlippedY(true);
}
}
}
// removing / getting tiles
Sprite* TMXLayer::getTileAt(const Vec2& tileCoordinate)
{
CCASSERT( tileCoordinate.x < _layerSize.width && tileCoordinate.y < _layerSize.height && tileCoordinate.x >=0 && tileCoordinate.y >=0, "TMXLayer: invalid position");
CCASSERT( _tiles, "TMXLayer: the tiles map has been released");
Sprite *tile = nullptr;
int gid = this->getTileGIDAt(tileCoordinate);
// if GID == 0, then no tile is present
if( gid ) {
int index = tileCoordinate.x + tileCoordinate.y * _layerSize.width;
auto it = _spriteContainer.find(index);
if (it != _spriteContainer.end())
{
tile = it->second.first;
}
else
{
// tile not created yet. create it
Rect rect = _tileSet->getRectForGID(gid);
rect = CC_RECT_PIXELS_TO_POINTS(rect);
tile = Sprite::createWithTexture(_texture, rect);
Vec2 p = this->getPositionAt(tileCoordinate);
tile->setAnchorPoint(Vec2::ZERO);
tile->setPosition(p);
tile->setPositionZ((float)getVertexZForPos(tileCoordinate));
tile->setOpacity(this->getOpacity());
tile->setTag(index);
this->addChild(tile, index);
_spriteContainer.insert(std::pair<int, std::pair<Sprite*, int> >(index, std::pair<Sprite*, int>(tile, gid)));
// tile is converted to sprite.
setFlaggedTileGIDByIndex(index, 0);
}
}
return tile;
}
void TMXLayer::updateTotalQuads()
{
if(_quadsDirty)
{
Size tileSize = CC_SIZE_PIXELS_TO_POINTS(_tileSet->_tileSize);
Size texSize = _tileSet->_imageSize;
_tileToQuadIndex.clear();
(*_totalQuads).resize(int(_layerSize.width * _layerSize.height)); //[CY MOD]
(*_indices).resize(6 * int(_layerSize.width * _layerSize.height)); //[CY MOD]
_tileToQuadIndex.resize(int(_layerSize.width * _layerSize.height),-1);
_indicesVertexZOffsets.clear();
int quadIndex = 0;
for(int y = 0; y < _layerSize.height; ++y)
{
for(int x =0; x < _layerSize.width; ++x)
{
int tileIndex = getTileIndexByPos(x, y);
int tileGID = _tiles[tileIndex];
if(tileGID == 0) continue;
_tileToQuadIndex[tileIndex] = quadIndex;
auto& quad = (*_totalQuads)[quadIndex]; //[CY MOD]
Vec3 nodePos(float(x), float(y), 0);
_tileToNodeTransform.transformPoint(&nodePos);
float left, right, top, bottom, z;
z = getVertexZForPos(Vec2(x, y));
auto iter = _indicesVertexZOffsets.find(z);
if(iter == _indicesVertexZOffsets.end())
{
_indicesVertexZOffsets[z] = 1;
}
else
{
iter->second++;
}
// vertices
if (tileGID & kTMXTileDiagonalFlag)
{
left = nodePos.x;
right = nodePos.x + tileSize.height;
bottom = nodePos.y + tileSize.width;
top = nodePos.y;
}
else
{
left = nodePos.x;
right = nodePos.x + tileSize.width;
bottom = nodePos.y + tileSize.height;
top = nodePos.y;
}
if(tileGID & kTMXTileVerticalFlag)
std::swap(top, bottom);
if(tileGID & kTMXTileHorizontalFlag)
std::swap(left, right);
if(tileGID & kTMXTileDiagonalFlag)
{
// FIXME: not working correcly
quad.bl.vertices.x = left;
quad.bl.vertices.y = bottom;
quad.bl.vertices.z = z;
quad.br.vertices.x = left;
quad.br.vertices.y = top;
quad.br.vertices.z = z;
quad.tl.vertices.x = right;
quad.tl.vertices.y = bottom;
quad.tl.vertices.z = z;
quad.tr.vertices.x = right;
quad.tr.vertices.y = top;
quad.tr.vertices.z = z;
}
else
{
quad.bl.vertices.x = left;
quad.bl.vertices.y = bottom;
quad.bl.vertices.z = z;
quad.br.vertices.x = right;
quad.br.vertices.y = bottom;
quad.br.vertices.z = z;
quad.tl.vertices.x = left;
quad.tl.vertices.y = top;
quad.tl.vertices.z = z;
quad.tr.vertices.x = right;
quad.tr.vertices.y = top;
quad.tr.vertices.z = z;
}
// texcoords
Rect tileTexture = _tileSet->getRectForGID(tileGID);
left = (tileTexture.origin.x) / texSize.width;
right = (tileTexture.origin.x+tileTexture.size.width) / texSize.width;
bottom = (tileTexture.origin.y)/ texSize.height;
top = (tileTexture.origin.y+tileTexture.size.height) / texSize.height;
quad.bl.texCoords.u = left;
quad.bl.texCoords.v = bottom;
quad.br.texCoords.u = right;
quad.br.texCoords.v = bottom;
quad.tl.texCoords.u = left;
quad.tl.texCoords.v = top;
quad.tr.texCoords.u = right;
quad.tr.texCoords.v = top;
quad.bl.colors = Color4B::WHITE;
quad.br.colors = Color4B::WHITE;
quad.tl.colors = Color4B::WHITE;
quad.tr.colors = Color4B::WHITE;
++quadIndex;
}
}
int offset = 0;
for(auto iter = _indicesVertexZOffsets.begin(); iter != _indicesVertexZOffsets.end(); ++iter)
{
std::swap(offset, iter->second);
offset += iter->second;
}
updateVertexBuffer();
_quadsDirty = false;
}
}
void TMXLayer::updateTiles(const Rect& culledRect)
{
Rect visibleTiles = culledRect;
Size mapTileSize = CC_SIZE_PIXELS_TO_POINTS(_mapTileSize);
Size tileSize = CC_SIZE_PIXELS_TO_POINTS(_tileSet->_tileSize);
Mat4 nodeToTileTransform = _tileToNodeTransform.getInversed();
//transform to tile
visibleTiles = RectApplyTransform(visibleTiles, nodeToTileTransform);
// tile coordinate is upside-down, so we need to make the tile coordinate use top-left for the start point.
visibleTiles.origin.y += 1;
// if x=0.7, width=9.5, we need to draw number 0~10 of tiles, and so is height.
visibleTiles.size.width = ceil(visibleTiles.origin.x + visibleTiles.size.width) - floor(visibleTiles.origin.x);
visibleTiles.size.height = ceil(visibleTiles.origin.y + visibleTiles.size.height) - floor(visibleTiles.origin.y);
visibleTiles.origin.x = floor(visibleTiles.origin.x);
visibleTiles.origin.y = floor(visibleTiles.origin.y);
// for the bigger tiles.
int tilesOverX = 0;
int tilesOverY = 0;
// for diagonal oriention tiles
float tileSizeMax = std::max(tileSize.width, tileSize.height);
if (_layerOrientation == FAST_TMX_ORIENTATION_ORTHO)
{
tilesOverX = ceil(tileSizeMax / mapTileSize.width) - 1;
tilesOverY = ceil(tileSizeMax / mapTileSize.height) - 1;
if (tilesOverX < 0) tilesOverX = 0;
if (tilesOverY < 0) tilesOverY = 0;
}
else if(_layerOrientation == FAST_TMX_ORIENTATION_ISO)
{
Rect overTileRect(0, 0, tileSizeMax - mapTileSize.width, tileSizeMax - mapTileSize.height);
if (overTileRect.size.width < 0) overTileRect.size.width = 0;
if (overTileRect.size.height < 0) overTileRect.size.height = 0;
overTileRect = RectApplyTransform(overTileRect, nodeToTileTransform);
tilesOverX = ceil(overTileRect.origin.x + overTileRect.size.width) - floor(overTileRect.origin.x);
tilesOverY = ceil(overTileRect.origin.y + overTileRect.size.height) - floor(overTileRect.origin.y);
}
else
{
//do nothing, do not support
//CCASSERT(0, "TMX invalid value");
}
_indicesVertexZNumber.clear();
for(const auto& iter : _indicesVertexZOffsets)
{
_indicesVertexZNumber[iter.first] = iter.second;
}
int yBegin = std::max(0.f,visibleTiles.origin.y - tilesOverY);
int yEnd = std::min(_layerSize.height,visibleTiles.origin.y + visibleTiles.size.height + tilesOverY);
int xBegin = std::max(0.f,visibleTiles.origin.x - tilesOverX);
int xEnd = std::min(_layerSize.width,visibleTiles.origin.x + visibleTiles.size.width + tilesOverX);
for (int y = yBegin; y < yEnd; ++y)
{
for (int x = xBegin; x < xEnd; ++x)
{
int tileIndex = getTileIndexByPos(x, y);
if(_tiles[tileIndex] == 0) continue;
int vertexZ = getVertexZForPos(Vec2(x,y));
auto iter = _indicesVertexZNumber.find(vertexZ);
int offset = iter->second;
iter->second++;
int quadIndex = _tileToQuadIndex[tileIndex];
CC_ASSERT(-1 != quadIndex);
(*_indices)[6 * offset + 0] = quadIndex * 4 + 0; //[CY MOD]
(*_indices)[6 * offset + 1] = quadIndex * 4 + 1; //[CY MOD]
(*_indices)[6 * offset + 2] = quadIndex * 4 + 2; //[CY MOD]
(*_indices)[6 * offset + 3] = quadIndex * 4 + 3; //[CY MOD]
(*_indices)[6 * offset + 4] = quadIndex * 4 + 2; //[CY MOD]
(*_indices)[6 * offset + 5] = quadIndex * 4 + 1; //[CY MOD]
} // for x
} // for y
for(const auto& iter : _indicesVertexZOffsets)
{
_indicesVertexZNumber[iter.first] -= iter.second;
if(_indicesVertexZNumber[iter.first] == 0)
{
_indicesVertexZNumber.erase(iter.first);
}
}
}
