我试图构建一个 Pathfinding A* 代码，但不断收到数组索引错误。我试过用 x 和 y 进行调整，但到目前为止还没有运气。这是代码。
public int columns = 9; //Columns and rows to set up the board
public int rows = 9; //This number are the usable tiles, the complete board is 11 by 11
//With a border of 1 tile
public Node[,] graph;
//Class Node
public class Node
{
public List<Node> neighbours; //List of all the neighbours nodes (4Directions)
public Node()
{
neighbours = new List<Node>();
}
}
//Sets up the outer walls and floor (background) of the game board.
void BoardSetup()
{
for (int x = -1; x < columns + 1; x++)
{
for (int y = -1; y < rows + 1; y++)
{
Edited out Code, don't think has anything to do with my problem.
}
}
}
//Creates the graph to use Pathfinding
void GeneratePathfindingGraph()
{
//Create graph
graph = new Node[columns, rows];
for (int x = -1; x < columns + 1; x++)
{
for (int y = -1; y < rows + 1; y++)
{
graph[x, y] = new Node();
Add the 4 cardinal adjacent tiles
if (x != - 1)
graph[x, y].neighbours.Add(graph[x - 1, y]);
if (x != columns - 1)
graph[x, y].neighbours.Add(graph[x + 1, y]); //Where I am getting the error
if (y != - 1)
graph[x, y].neighbours.Add(graph[x, y - 1]);
if (y != rows - 1)
graph[x, y].neighbours.Add(graph[x, y + 1]);
}
}
}
//SetupScene initializes our level and calls the previous functions to lay out the game board
public void SetupScene(int level)
{
//Creates the outer walls and floor.
BoardSetup();
//Creates the Node map to use Pathfinding
GeneratePathfindingGraph();
}
}
我已经编辑掉了这个类的大部分代码，我认为它与问题没有太大关系。