//Vykreslení
public void Draw(Graphics g, List <Color> colors)
{
foreach (Branch branch in Branches)
{
if (branch.Count > 1)
{
Pen pen = new Pen(colors[branch.Color], 0.3f);
pen.StartCap = pen.EndCap = System.Drawing.Drawing2D.LineCap.Round;
Point a = branch[0];
for (int i = 1; i < branch.Count; i++)
{
Point b = branch[i];
//Ošetří případ, kdy jde o přetečení přes okraj
if (Math.Abs(a.X - b.X) + Math.Abs(a.Y - b.Y) > 1)
{
int dx = Grid.ModW(b.X - a.X);
if (dx > 1)
{
dx -= Grid.Width;
}
int dy = Grid.ModH(b.Y - a.Y);
if (dy > 1)
{
dy -= Grid.Height;
}
Pen pen2 = new Pen(colors[branch.Color], 0.3f);
pen2.StartCap = System.Drawing.Drawing2D.LineCap.Round;
g.DrawLine(pen2, new PointF(a.X + 0.5f, a.Y + 0.5f), new PointF(a.X + 0.5f * dx + 0.5f, a.Y + 0.5f * dy + 0.5f));
g.DrawLine(pen2, new PointF(b.X + 0.5f, b.Y + 0.5f), new PointF(b.X - 0.5f * dx + 0.5f, b.Y - 0.5f * dy + 0.5f));
}
//Ostatní případy
else
{
g.DrawLine(pen, new PointF(a.X + 0.5f, a.Y + 0.5f), new PointF(b.X + 0.5f, b.Y + 0.5f));
}
//Překreslit horní čáru přes most
if (Grid.Bridges[a.X, a.Y])
{
Pen pen3 = new Pen(Color.Black, 0.3f);
if (Cells[a.X, a.Y] >= 0)
{
pen3 = new Pen(colors[Cells[a.X, a.Y]], 0.3f);
}
g.DrawLine(pen3, new PointF(a.X, a.Y + 0.5f), new PointF(a.X + 1, a.Y + 0.5f));
}
a = b;
}
}
}
Grid.RedrawBridges(g);
}
protected override void Apply(Point coords, Grid grid)
{
if (0 <= coords.X && coords.X <= 2 * grid.Width + 1 && 0 <= coords.Y && coords.Y <= 2 * grid.Height + 1)
{
int dx = coords.Y % 2; //schválně "naopak", zajímá mě lichost v kolmém směru
int dy = coords.X % 2;
int x = coords.X - dx;
int y = coords.Y - dy;
if (Grid.Directions.All(d => !grid.Bridges[grid.ModW((x + dx * d.X) / 2), grid.ModH((y + dy * d.Y) / 2)]))
{
grid.Walls[grid.Mod2W(coords.X), grid.Mod2H(coords.Y)] ^= true;
}
}
}
private int AreaTo(Point p, Point d)
{
return(Areas[Grid.ModW(p.X + d.X), Grid.ModH(p.Y + d.Y)]);
}
private int CellTo(Point p, Point d)
{
return(Cells[Grid.ModW(p.X + d.X), Grid.ModH(p.Y + d.Y)]);
}
