//画线预览效果
void MazeDraft()
{
//重新生成
//按的时候前提需要focus on Game window，有点尴尬…
if (Input.GetKeyDown(KeyCode.G))
{
mazeGraph.Generate();
}
float cellWidth = 0.2f;
float cellDepth = 0.2f;
float halfMazeWidth = mazeGraph.MazeColumns * cellWidth * 0.5f;
float halfMazeDepth = mazeGraph.MazeRows * cellDepth * 0.5f;
int[,] mazeTable = mazeGraph.MazeTable;
for (int i = 0; i < mazeGraph.CellNum; i++)
{
int row = i / mazeGraph.MazeColumns;
int column = i % mazeGraph.MazeColumns;
//画右边的竖线
if (column != mazeGraph.MazeColumns - 1 && mazeTable[i, 3] < 0)
{
Vector3 start = new Vector3((column + 1) * cellWidth - halfMazeWidth, 0f, halfMazeDepth - row * cellDepth);
Vector3 end = new Vector3((column + 1) * cellWidth - halfMazeWidth, 0f, halfMazeDepth - (row + 1) * cellDepth);
Debug.DrawLine(start, end, Color.blue);
}
//画下面的横线
if (row != mazeGraph.MazeRows - 1 && mazeTable[i, 1] < 0)
{
Vector3 start = new Vector3(column * cellWidth - halfMazeWidth, 0f, halfMazeDepth - (row + 1) * cellDepth);
Vector3 end = new Vector3((column + 1) * cellWidth - halfMazeWidth, 0f, halfMazeDepth - (row + 1) * cellDepth);
Debug.DrawLine(start, end, Color.blue);
}
}
//画四条边
Debug.DrawLine(new Vector3(-halfMazeWidth, 0f, halfMazeDepth), new Vector3(halfMazeWidth, 0f, halfMazeDepth), Color.blue);
Debug.DrawLine(new Vector3(halfMazeWidth, 0f, halfMazeDepth), new Vector3(halfMazeWidth, 0f, cellDepth - halfMazeDepth), Color.blue);
Debug.DrawLine(new Vector3(-halfMazeWidth, 0f, halfMazeDepth - cellDepth), new Vector3(-halfMazeWidth, 0f, -halfMazeDepth), Color.blue);
Debug.DrawLine(new Vector3(-halfMazeWidth, 0f, -halfMazeDepth), new Vector3(halfMazeWidth, 0f, -halfMazeDepth), Color.blue);
//path
List <int> path = mazeGraph.CalPath();
Vector3 pathStart = new Vector3(-halfMazeWidth + 0.5f * cellWidth, 0f, halfMazeDepth - 0.5f * cellDepth), pathEnd;
for (int i = path.Count - 2; i >= 0; i--)
{
int row = path[i] / mazeGraph.MazeColumns;
int column = path[i] % mazeGraph.MazeColumns;
pathEnd = new Vector3(column * cellWidth - halfMazeWidth + 0.5f * cellWidth, 0f, halfMazeDepth - row * cellDepth - 0.5f * cellDepth);
Debug.DrawLine(pathStart, pathEnd, Color.green);
pathStart = pathEnd;
}
Debug.DrawLine(pathStart, new Vector3(halfMazeWidth - 0.5f * cellWidth, 0f, -halfMazeDepth + 0.5f * cellDepth), Color.green);
}