public int GetDirectionRelativeValue(DirectionRelativeParent direction)
{
//斜对角√2 * 10 直线 1 * 10
switch (direction)
{
case DirectionRelativeParent.UP:
case DirectionRelativeParent.DOWN:
case DirectionRelativeParent.LEFT:
case DirectionRelativeParent.RIGHT:
return(10);
case DirectionRelativeParent.LEFT_UP:
case DirectionRelativeParent.LEFT_DOWN:
case DirectionRelativeParent.RIGHT_UP:
case DirectionRelativeParent.RIGHT_DOWN:
return(14);
case DirectionRelativeParent.START:
case DirectionRelativeParent.END:
return(0);
default:
return(0);
}
}
public Point GetOffsetValueByDirection(DirectionRelativeParent direction)
{
switch (direction)
{
case DirectionRelativeParent.UP:
return(new Point(0, 1));
case DirectionRelativeParent.DOWN:
return(new Point(0, -1));
case DirectionRelativeParent.LEFT:
return(new Point(-1, 0));
case DirectionRelativeParent.RIGHT:
return(new Point(1, 0));
case DirectionRelativeParent.LEFT_UP:
return(new Point(-1, 1));
case DirectionRelativeParent.LEFT_DOWN:
return(new Point(-1, -1));
case DirectionRelativeParent.RIGHT_UP:
return(new Point(1, 1));
case DirectionRelativeParent.RIGHT_DOWN:
return(new Point(1, -1));
case DirectionRelativeParent.START:
case DirectionRelativeParent.END:
case DirectionRelativeParent.UNKNOWN:
default:
return(new Point(0, 0));
}
}
public float CalculateGValue(DirectionRelativeParent direction, float parentGValue)
{
if (direction == DirectionRelativeParent.END)
{
return(0);
}
return(GetDirectionRelativeValue(direction) + parentGValue);
}
public void GenerateRoundNode(NodeInfo parentNode)
{
//直线
for (DirectionRelativeParent i = DirectionRelativeParent.UP; i <= DirectionRelativeParent.RIGHT; i++)
{
CreateNodeByDirection(i, parentNode);
}
//对角线
if (isCalcDiagonal)
{
for (DirectionRelativeParent i = DirectionRelativeParent.LEFT_UP; i <= DirectionRelativeParent.RIGHT_DOWN; i++)
{
CreateNodeByDirection(i, parentNode);
}
}
//排序
openNodeList.SortOpenList();
}
public void CreateNodeByDirection(DirectionRelativeParent direction, NodeInfo parentNode)
{
Point offset = GetOffsetValueByDirection(direction);
int girdX = parentNode.gridX + offset.x;
int gridY = parentNode.gridY + offset.y;
//如果是障碍物，则不创建
if (IsBlock(girdX, gridY))
{
return;
}
//如果已经在closelist 则不创建
if (closeNodeList.IsAlreadyInCloseList(girdX, gridY))
{
return;
}
//创建并加入Open列表
openNodeList.AddNode(CreateNode(girdX, gridY, parentNode));
}
