public void Render(ICanvas canvas, int width, int height, IPixelMapper pixelMapper)
{
var tunnelRoofColour = BuildModeAwareColour(Colors.LightGray);
var firstMountain = new Terrain()
{
Height = Terrain.FirstMountainHeight
};
var tunnelBaseColour = BuildModeAwareColour(TerrainMapRenderer.GetTerrainColour(firstMountain));
var entranceColourArray = new[] { tunnelBaseColour, tunnelRoofColour, tunnelBaseColour };
Dictionary <(int column, int row), Tunnel> entrances = new();
foreach (Track track in _trackLayout)
{
var terrain = _terrainMap.Get(track.Column, track.Row);
if (!terrain.IsMountain)
{
continue;
}
(int x, int y, _) = pixelMapper.CoordsToViewPortPixels(track.Column, track.Row);
// Paint over the tracks with the colour of the terrain. Would be awesome to remove this in future somehow
var terrainColour = BuildModeAwareColour(TerrainMapRenderer.GetTerrainColour(terrain));
canvas.DrawRect(x, y, pixelMapper.CellSize, pixelMapper.CellSize,
new PaintBrush
{
Style = PaintStyle.Fill,
Color = terrainColour,
});
TrackNeighbors trackNeighbours = track.GetConnectedNeighbors();
BuildEntrances(trackNeighbours.Up, Tunnel.Bottom, entrances);
BuildEntrances(trackNeighbours.Right, Tunnel.Left, entrances);
BuildEntrances(trackNeighbours.Down, Tunnel.Top, entrances);
BuildEntrances(trackNeighbours.Left, Tunnel.Right, entrances);
var currentCellTunnels = (IsEntrance(trackNeighbours.Up) ? Tunnel.Top : Tunnel.NoTunnels) |
(IsEntrance(trackNeighbours.Right) ? Tunnel.Right : Tunnel.NoTunnels) |
(IsEntrance(trackNeighbours.Down) ? Tunnel.Bottom : Tunnel.NoTunnels) |
(IsEntrance(trackNeighbours.Left) ? Tunnel.Left : Tunnel.NoTunnels);
DrawTunnel(canvas, pixelMapper, tunnelRoofColour, tunnelBaseColour, x, y, currentCellTunnels);
}
foreach (var(col, row, tunnels) in entrances)
{
DrawEntrance(canvas, pixelMapper, entranceColourArray, col, row, tunnels);
}
}
public bool TryCreateEntity(int column, int row, bool isPartOfDrag, [NotNullWhen(true)] out Track?entity)
{
var neighbours = TrackNeighbors.GetConnectedNeighbours(_layout.ToLayout(), column, row, emptyIsConsideredConnected: true);
// if they click and its the perfect spot for a cross track, just do it
if (!isPartOfDrag && neighbours.Count == 4)
{
entity = new CrossTrack();
return(true);
}
if (isPartOfDrag)
{
if (neighbours.Count == 4)
{
entity = new CrossTrack();
return(true);
}
// if they're dragging, we're looking for them to complete an intersection
neighbours = TrackNeighbors.GetConnectedNeighbours(_layout.ToLayout(), column - 1, row);
if (neighbours.Count == 3 && neighbours.Right is null)
{
entity = new Track()
{
Direction = TrackDirection.Horizontal
};
_layout.Set(column - 1, row, new CrossTrack());
return(true);
}
neighbours = TrackNeighbors.GetConnectedNeighbours(_layout.ToLayout(), column, row - 1);
if (neighbours.Count == 3 && neighbours.Down is null)
{
entity = new Track()
{
Direction = TrackDirection.Vertical
};
_layout.Set(column, row - 1, new CrossTrack());
return(true);
}
neighbours = TrackNeighbors.GetConnectedNeighbours(_layout.ToLayout(), column + 1, row);
if (neighbours.Count == 3 && neighbours.Left is null)
{
entity = new Track()
{
Direction = TrackDirection.Horizontal
};
_layout.Set(column + 1, row, new CrossTrack());
return(true);
}
neighbours = TrackNeighbors.GetConnectedNeighbours(_layout.ToLayout(), column, row + 1);
if (neighbours.Count == 3 && neighbours.Up is null)
{
entity = new Track()
{
Direction = TrackDirection.Vertical
};
_layout.Set(column, row + 1, new CrossTrack());
return(true);
}
}
entity = null;
return(false);
}
