private void UpdateBuildings()
{
if (!zoomRange.InRange(api.zoom))
{
RemoveAllBuildings();
return;
}
OnlineMapsVector2i newTopLeft = OnlineMapsUtils.LatLongToTile(api.topLeftPosition, api.zoom) - new OnlineMapsVector2i(1, 1);
OnlineMapsVector2i newBottomRight = OnlineMapsUtils.LatLongToTile(api.bottomRightPosition, api.zoom) + new OnlineMapsVector2i(1, 1);
if (newTopLeft != topLeft || newBottomRight != bottomRight)
{
topLeft = newTopLeft;
bottomRight = newBottomRight;
LoadNewBuildings();
}
UpdateBuildingsPosition();
}
private bool UpdateBackBuffer(double px, double py, int zoom, bool fullRedraw)
{
const int s = OnlineMapsUtils.tileSize;
int countX = api.width / s + 2;
int countY = api.height / s + 2;
OnlineMapsVector2i pos = OnlineMapsUtils.LatLongToTile(px, py, zoom);
pos.x -= countX / 2;
pos.y -= countY / 2;
int maxY = (2 << zoom) / 2;
if (pos.y < 0)
{
pos.y = 0;
}
if (pos.y >= maxY - countY - 1)
{
pos.y = maxY - countY - 1;
}
if (api.target == OnlineMapsTarget.texture)
{
if (frontBuffer == null || frontBuffer.Length != api.width * api.height)
{
frontBuffer = new Color[api.width * api.height];
fullRedraw = true;
}
if (backBuffer == null || width != countX * s || height != countY * s)
{
width = countX * s;
height = countY * s;
backBuffer = new Color[height * width];
fullRedraw = true;
}
}
if (!updateBackBuffer && !fullRedraw && bufferZoom == zoom && bufferPosition != null &&
bufferPosition == pos)
{
return(false);
}
updateBackBuffer = false;
bufferPosition = pos;
bufferZoom = zoom;
OnlineMapsBufferZoom activeZoom = GetActiveZoom(zoom);
List <OnlineMapsTile> newBaseTiles = new List <OnlineMapsTile>();
lock (OnlineMapsTile.tiles)
{
foreach (OnlineMapsTile tile in OnlineMapsTile.tiles)
{
tile.used = false;
}
InitTiles(zoom, activeZoom, countX, pos, countY, maxY, newBaseTiles);
if (!api.useCurrentZoomTiles)
{
List <OnlineMapsTile> newParentTiles = CreateParents(newBaseTiles, zoom - 1);
if (zoom - 2 > 2)
{
newParentTiles = CreateParents(newParentTiles, zoom - 2);
if (zoom - 3 > 2)
{
CreateParents(newParentTiles, zoom - 3);
}
}
}
if (api.target == OnlineMapsTarget.texture)
{
SetMarkersToBuffer(api.markers);
}
}
needUnloadTiles = true;
return(true);
}