public RelateDirection GetCellRelation(int idx, int offset)
{
RelateDirection direction = RelateDirection.None;
int r_idx = idx + offset;
Cell rela = GetCell(r_idx);
if (rela != null)
{
Cell cell = GetCell(idx);
if (rela.Row > cell.Row)
{
direction = RelateDirection.Bottom;
}
else if (rela.Row < cell.Row)
{
direction = RelateDirection.Top;
}
else if (rela.Col > cell.Col)
{
direction = RelateDirection.Right;
}
else if (rela.Col < cell.Col)
{
direction = RelateDirection.Left;
}
}
return(direction);
}
public void DrawSerpentCell(Serpent serpent, int idx)
{
Cell cell = serpent.GetCell(idx);
Rectangle rect = GetCellRect(cell.Row, cell.Col);
RelateDirection before = serpent.GetCellRelation(idx, -1);
RelateDirection after = serpent.GetCellRelation(idx, 1);
cell.Draw(_graphic, rect, CellMargin, idx, before, after);
}
public void Draw(Graphics g, Rectangle rect, int margin, int idx, RelateDirection before, RelateDirection after)
{
if (IsNormal() || IsHinder())
{
DrawSimple(g, rect);
return;
}
Brush brObj = new SolidBrush(ObjColor);
Brush brBack = new SolidBrush(NormalColor);
Pen pen = new Pen(BdrColor, 1);
if (!Global.DrawCellMargin)
{
g.FillRectangle(brObj, rect);
if (Global.DrawCellGridLine)
{
g.DrawRectangle(pen, rect);
}
if (idx != -1 && Global.DisplaySerpentItemNumber)
{
g.DrawString(idx.ToString(), SystemFonts.DefaultFont, brBack, rect.Left + 2, rect.Top + 2);
}
}
else
{
g.FillRectangle(brBack, rect);
if (Global.DrawCellGridLine)
{
g.DrawRectangle(pen, rect);
}
Rectangle rcCenter = new Rectangle(rect.Left + margin, rect.Top + margin, rect.Width - margin * 2, rect.Height - margin * 2);
g.FillRectangle(brObj, rcCenter);
if (idx != -1 && Global.DisplaySerpentItemNumber)
{
g.DrawString(idx.ToString(), SystemFonts.DefaultFont, Brushes.Black, rcCenter.Left + 2, rcCenter.Top + 2);
}
if (before != RelateDirection.None)
{
Rectangle rcBefore = GetRelationRect(rect, margin, before);
g.FillRectangle(brObj, rcBefore);
}
if (after != RelateDirection.None)
{
Rectangle rcAfter = GetRelationRect(rect, margin, after);
g.FillRectangle(brObj, rcAfter);
}
}
brObj.Dispose();
brBack.Dispose();
pen.Dispose();
}
public void DrawSerpentCells(Serpent serpent)
{
for (int i = 0; i < serpent.Body.Count; i++)
{
Cell cell = serpent.Body[i];
Rectangle rect = GetCellRect(cell.Row, cell.Col);
RelateDirection before = serpent.GetCellRelation(i, -1);
RelateDirection after = serpent.GetCellRelation(i, 1);
cell.Draw(_graphic, rect, CellMargin, i, before, after);
}
}
private Rectangle GetRelationRect(Rectangle rect, int margin, RelateDirection direction)
{
if (!Global.DrawCellMargin)
{
return(rect);
}
Rectangle rcDirection = Rectangle.Empty;
int x = 0, y = 0, w = 0, h = 0;
switch (direction)
{
case RelateDirection.None:
return(rcDirection);
case RelateDirection.Center:
x = rect.Left + margin;
y = rect.Top + margin;
w = rect.Width - margin * 2;
h = rect.Height - margin * 2;
break;
case RelateDirection.Left:
x = rect.Left;
y = rect.Top + margin;
w = margin;
h = rect.Height - margin * 2;
break;
case RelateDirection.Right:
x = rect.Right - margin;
y = rect.Top + margin;
w = margin;
h = rect.Height - margin * 2;
break;
case RelateDirection.Top:
x = rect.Left + margin;
y = rect.Top;
w = rect.Width - margin * 2;
h = margin;
break;
case RelateDirection.Bottom:
x = rect.Left + margin;
y = rect.Bottom - margin;
w = rect.Width - margin * 2;
h = margin;
break;
}
rcDirection = new Rectangle(x, y, w, h);
return(rcDirection);
}
public void DrawSerpentCells2(Serpent serpent)
{
Graphics g = Graphics.FromImage(_bitmap);
for (int i = 0; i < serpent.Body.Count; i++)
{
Cell cell = serpent.Body[i];
Rectangle rect = GetCellRect(cell.Row, cell.Col);
RelateDirection before = serpent.GetCellRelation(i, -1);
RelateDirection after = serpent.GetCellRelation(i, 1);
cell.Draw(g, rect, CellMargin, i, before, after);
}
g.Dispose();
_graphic.DrawImage(_bitmap, 0, 0);
}
