/// <summary>
/// Render the map, with TL in map at mapOffset. Screenviewport is the screen viewport in tile dimensions (for now)
/// </summary>
/// <param name="mapToRender"></param>
/// <param name="mapOffset"></param>
/// <param name="screenViewport"></param>
public static void RenderMap(TileEngine.TileMap mapToRender, Point mapOffset, Rectangle screenViewport)
{
//For libtcod
//tileID = ascii char
//flags = color
//Get screen handle
RootConsole rootConsole = RootConsole.GetInstance();
if (mapOffset.x >= mapToRender.Columns || mapOffset.y >= mapToRender.Rows)
{
throw new Exception("Point outside map " + mapOffset);
}
//Calculate visible area of map
int maxColumn = mapOffset.x + screenViewport.Width - 1;
int maxRow = mapOffset.y + screenViewport.Height - 1;
if (maxColumn >= mapToRender.Columns)
{
maxColumn = mapToRender.Columns - 1;
}
if (maxRow >= mapToRender.Rows)
{
maxRow = mapToRender.Rows - 1;
}
//Render layers in order
foreach (TileEngine.TileLayer layer in mapToRender.Layer)
{
for (int y = mapOffset.y; y <= maxRow; y++)
{
for (int x = mapOffset.x; x <= maxColumn; x++)
{
TileEngine.TileCell thisCell = layer.Rows[y].Columns[x];
if (thisCell.TileID == -1)
{
continue;
}
//Flags is a color for libtcod
LibtcodColorFlags colorFlags = thisCell.TileFlag as LibtcodColorFlags;
if (colorFlags == null)
{
rootConsole.ForegroundColor = ColorPresets.White;
rootConsole.BackgroundColor = ColorPresets.Black;
}
else
{
if (colorFlags.BackgroundColor == null)
{
rootConsole.BackgroundColor = ColorPresets.Black;
}
else
{
rootConsole.BackgroundColor = colorFlags.BackgroundColor;
}
rootConsole.ForegroundColor = colorFlags.ForegroundColor;
}
//Id is the char
char screenChar = Convert.ToChar(thisCell.TileID);
//Screen coords
int screenX = screenViewport.X + (x - mapOffset.x);
int screenY = screenViewport.Y + (y - mapOffset.y);
rootConsole.PutChar(screenX, screenY, screenChar);
}
}
}
//Reset colors - this matters for systems that don't use the tile renderer
rootConsole.ForegroundColor = ColorPresets.White;
rootConsole.BackgroundColor = ColorPresets.Black;
}
/// <summary>
/// Draw a line following a path on a tile layer. Override default line drawing
/// </summary>
/// <param name="start"></param>
/// <param name="end"></param>
/// <param name="color"></param>
protected void DrawPathLine(TileLevel layerNo, Point start, Point end, Color foregroundColor, Color backgroundColor, char drawChar)
{
//Draw the line overlay
//Cast a line between the start and end
int lastX = start.x;
int lastY = start.y;
foreach(Point p in Utility.GetPointsOnLine(start, end)) {
//Don't draw the first char (where the player is)
if(p == start)
continue;
if (!isViewVisible(p))
continue;
char c;
if (drawChar == 0)
c = LineChar(p.x - lastX, p.y - lastY);
else
c = drawChar;
lastX = p.x;
lastY = p.y;
tileMapLayer(layerNo)[ViewRelative(p)] = new TileEngine.TileCell(c);
tileMapLayer(layerNo)[ViewRelative(p)].TileFlag = new LibtcodColorFlags(foregroundColor, backgroundColor);
}
}
