public void Draw(IPlotOperation plotOperation)
{
var area = viewport.RenderedArea;
var insets = viewport.RenderInsets;
var renderType = viewport.RenderType;
var screenOrigin = new MapCoordinate(0, 0);
screenNavigator.NavigateTo(GridDirection.North, screenOrigin, out MapCoordinate northWest, insets.Top);
screenNavigator.NavigateTo(GridDirection.West, northWest, out northWest, insets.Left);
screenNavigator.NavigateTo(GridDirection.South, screenOrigin, out MapCoordinate southWest, insets.Bottom);
screenNavigator.NavigateTo(GridDirection.West, southWest, out southWest, insets.Left);
var valid = true;
var mapOrigin = viewport.CenterPointInMapCoordinates;
valid &= mapAccessNavigator.NavigateTo(GridDirection.North, mapOrigin, out MapCoordinate mapRowStart, insets.Top);
valid &= mapAccessNavigator.NavigateTo(GridDirection.West, mapRowStart, out mapRowStart, insets.Left);
var rowStart = northWest;
if (logger.IsTraceEnabled)
{
logger.Trace(
"Rendering frame lines from {0} -> {1} in area {2} (Insets: {3}, ScreenOrigin: {4}, MapOrigin: {5})",
northWest, southWest, area, insets, screenOrigin, mapOrigin);
}
plotOperation.StartDrawing();
for (var y = 0; y < area.Height; y += 1)
{
if (renderType == RenderType.Grid)
{
RenderLine(plotOperation, mapRowStart, rowStart, area.Width, valid, y);
screenNavigator.NavigateTo(GridDirection.South, rowStart, out rowStart);
valid = mapAccessNavigator.NavigateTo(GridDirection.South, mapRowStart, out mapRowStart);
}
else
{
// In any of the two isometric modes the renderer cannot just move straight downwards.
// Rows are offset against each other, so the renderer has to alternate between the
// south-east and south-west direction.
//
// On the first line, the start and end position are outwards from the screen so
// the line is actually two elements longer.
RenderLine(plotOperation, mapRowStart, rowStart, area.Width, valid, y); // was area.Width
screenNavigator.NavigateTo(GridDirection.SouthEast, rowStart, out rowStart);
valid = mapAccessNavigator.NavigateTo(GridDirection.SouthEast, mapRowStart, out mapRowStart);
RenderLine(plotOperation, mapRowStart, rowStart, area.Width, valid, y); // was area.Width
screenNavigator.NavigateTo(GridDirection.SouthWest, rowStart, out rowStart);
valid = mapAccessNavigator.NavigateTo(GridDirection.SouthWest, mapRowStart, out mapRowStart);
}
}
plotOperation.FinishedDrawing();
}
public FogState this[int x, int y]
{
get
{
navigator.NavigateTo(GridDirection.None, new MapCoordinate(x, y), out MapCoordinate c);
return(parent[c.X, c.Y]);
}
}
public static MapCoordinate[] NavigateCardinalNeighbours(this IMapNavigator <GridDirection> nav,
MapCoordinate coord,
MapCoordinate[] retval = null)
{
if (retval == null || retval.Length < 4)
{
retval = new MapCoordinate[4];
}
nav.NavigateTo(GridDirection.North, coord, out retval[0]);
nav.NavigateTo(GridDirection.East, coord, out retval[1]);
nav.NavigateTo(GridDirection.South, coord, out retval[2]);
nav.NavigateTo(GridDirection.West, coord, out retval[3]);
return(retval);
}
public void Validate(IMapNavigator <GridDirection> navigator)
{
var br = navigator.NavigateTo(Direction, Origin, out var result, Steps);
br.Should().Be(Result);
result.Should().Be(ExpectedPosition, "we navigated from origin {0} in direction {1}", Origin, Direction, ExpectedPosition);
}
public static MapCoordinate NavigateUnconditionally(this IMapNavigator <GridDirection> nav,
GridDirection d,
MapCoordinate coord,
int steps = 1)
{
nav.NavigateTo(d, coord, out MapCoordinate results, steps);
return(results);
}
void NavigateForUpwardRenderDirection(int x,
int y,
out MapCoordinate coordA,
out MapCoordinate coordB,
out MapCoordinate coordC,
out MapCoordinate coordD)
{
//
// /\
// /A \
// /\ 2/\
// / D\/ B \
// \1 /\ 3 /
// \/ C\/
// \ /
// \/
//
// tile_cell_A_B_C_D
// self is at C
coordC = new MapCoordinate(x, y);
gridNavigator.NavigateTo(GridDirection.North, coordC, out coordB);
gridNavigator.NavigateTo(GridDirection.NorthWest, coordC, out coordA);
gridNavigator.NavigateTo(GridDirection.West, coordC, out coordD);
}