//取得指定相鄰方向的格子
public T getNeighborCell <T>(Vector2Int _pos, ArrowFlag _arrow) where T : Tile
{
Dictionary <ArrowFlag, Vector2Int> neighborPosList = new Dictionary <ArrowFlag, Vector2Int>();
neighborPosList.Add(ArrowFlag.Top, new Vector2Int(0, 1));
neighborPosList.Add(ArrowFlag.Right, new Vector2Int(1, 0));
neighborPosList.Add(ArrowFlag.Bottom, new Vector2Int(0, -1));
neighborPosList.Add(ArrowFlag.Left, new Vector2Int(-1, 0));
return(getCell <T>(V2_V3(_pos + neighborPosList[_arrow])));
}
//
//取得指定座標格的方向Flag
ArrowFlag getCellRoadType(Vector2Int _pos)
{
ArrowFlag flag = ArrowFlag.None;
List <ArrowFlag> flagList = new List <ArrowFlag>()
{
ArrowFlag.Top, ArrowFlag.Right, ArrowFlag.Bottom, ArrowFlag.Left
};
for (int i = 0; i < flagList.Count; i++)
{
Cell targetCell = getNeighborCell <Cell>(_pos, flagList[i]);
if (targetCell != null)
{
if (targetCell.isPassable)
{
flag = flag | flagList[i];
}
}
}
return(flag);
}
//由方向Flag轉換為對應Int
int getRoadSpriteIndex(ArrowFlag _flag)
{
switch (_flag)
{
case ArrowFlag.Top | ArrowFlag.Bottom: return(0); //上下
case ArrowFlag.Right | ArrowFlag.Left: return(1); //左右
case ArrowFlag.Top | ArrowFlag.Right: return(2); //上右
case ArrowFlag.Top | ArrowFlag.Left: return(3); //上左
case ArrowFlag.Right | ArrowFlag.Bottom: return(4); //右下
case ArrowFlag.Left | ArrowFlag.Bottom: return(5); //左下
case ArrowFlag.Top | ArrowFlag.Right | ArrowFlag.Bottom: return(6); //上右下
case ArrowFlag.Top | ArrowFlag.Right | ArrowFlag.Left: return(7); //上右左
case ArrowFlag.Top | ArrowFlag.Bottom | ArrowFlag.Left: return(8); //上下左
case ArrowFlag.Right | ArrowFlag.Bottom | ArrowFlag.Left: return(9); //右下左
case ArrowFlag.Top | ArrowFlag.Right | ArrowFlag.Bottom | ArrowFlag.Left: return(10); //上右下左
case ArrowFlag.Top: return(11); //上
case ArrowFlag.Right: return(12); //右
case ArrowFlag.Bottom: return(13); //下
case ArrowFlag.Left: return(14); //左
default: return(0);
}
}
static void drawAndSave(string filename, Model model, string colorCode, int size, string optString)
{
// Create a Bitmap object from a file.
Bitmap bitmap = new Bitmap(size, size);
Graphics graphics = Graphics.FromImage(bitmap);
int defaultStrike = size / 100;
for (int i = 0; i < colorCode.Length; i++)
{
Char colorChar = colorCode[i];
if (colorChar == '_')
{
continue;
}
Color color = colorMap[colorChar];
Model.Polygen polygen = model.GetPolygen(i);
Point[] points = polygen.Points;
PointF[] scaledPoints = GetScaledPoints(points, size);
graphics.FillPolygon(new SolidBrush(color), scaledPoints);
int strike = polygen.GetStrikeSize(defaultStrike);
if (strike > 0)
{
graphics.DrawPolygon(new Pen(Color.Black, strike), scaledPoints);
}
}
if (optString != null)
{
Pen arrowPen = new Pen(Color.Black, defaultStrike);
string modelArrow = model.GetArrow(optString);
if (modelArrow != null)
{
optString = modelArrow;
}
string[] optStringArray = optString.Split(',');
foreach (string optS in optStringArray)
{
String arrow = null;
ArrowFlag flag = ArrowFlag.DEFAULT;
if (optS.Contains("--->"))
{
arrow = "--->";
flag = ArrowFlag.EXTEND_START;
}
else if (optS.Contains("-->"))
{
arrow = "-->";
flag = ArrowFlag.DEFAULT;
}
else if (optS.Contains("->"))
{
arrow = "->";
flag = ArrowFlag.SHRINK_START;
}
else
{
throw new Exception("failed to parse data file.");
}
string[] numStr = optS.Split(new string[] { arrow }, StringSplitOptions.RemoveEmptyEntries);
int first = int.Parse(numStr[0]);
int second = int.Parse(numStr[1]);
Model.Polygen firstPolygen = model.GetPolygen(first - 1);
Point[] points = firstPolygen.Points;
PointF[] scaledPoints = GetScaledPoints(points, size);
PointF start = GetCenter(scaledPoints);
Model.Polygen secondPolygen = model.GetPolygen(second - 1);
points = secondPolygen.Points;
scaledPoints = GetScaledPoints(points, size);
PointF end = GetCenter(scaledPoints);
drawArrow(start, end, graphics, arrowPen, size, flag);
}
}
// Save
bitmap.Save(filename);
}
static void drawArrow(PointF start, PointF end, Graphics g, Pen pen, int size, ArrowFlag flag)
{
int arrowSize = size / 100 * 6;
double radians = 0.0;
if (start.X == end.X)
{
radians = Math.PI / 2 * (end.Y > start.Y ? 1 : -1);
}
else
{
radians = Math.Atan2(end.Y - start.Y, end.X - start.X);
}
int adjust = (flag == ArrowFlag.DEFAULT ? 0 : (flag == ArrowFlag.EXTEND_START ? 1 : -1)) * arrowSize;
g.DrawLine(
pen,
(float)(start.X - adjust * Math.Cos(radians)),
(float)(start.Y - adjust * Math.Sin(radians)),
end.X,
end.Y);
PointF[] arrow = new PointF[] {
new PointF((float)(end.X - Math.Sin(radians) * arrowSize / 2), (float)(end.Y + Math.Cos(radians) * arrowSize / 2)),
new PointF((float)(end.X + Math.Sin(radians) * arrowSize / 2), (float)(end.Y - Math.Cos(radians) * arrowSize / 2)),
new PointF((float)(end.X + Math.Cos(radians) * arrowSize / 2), (float)(end.Y + Math.Sin(radians) * arrowSize / 2))
};
g.FillPolygon(new SolidBrush(Color.Black), arrow);
}
