public static NodeMap CreateFromTileMap(TileMap tileMap, SpritePolygon collisionPolygon)
{
NodeMap nodeMap = new NodeMap(tileMap.MapWidthTiles, tileMap.MapHeightTiles, tileMap.TileHeight, tileMap.TileWidth);
nodeMap.generationPolygon = (SpritePolygon)collisionPolygon.Clone();
for (int i = 0; i < nodeMap.XSize; i++)
{
for (int j = 0; j < nodeMap.YSize; j++)
{
Vector2 position = new Vector2
{
X = nodeMap.Nodes[i, j].X,
Y = nodeMap.Nodes[i, j].Y
};
collisionPolygon.MoveTo(position);
Collision collision = tileMap.CheckCollisionWithTerrain(collisionPolygon);
if (collision == Collision.Solid || collision == Collision.Water)
{
nodeMap.Nodes[i, j].IsFree = false;
nodeMap.Nodes[i, j].IsTerrain = true;
}
}
}
return(nodeMap);
}
public static NodeMap GetNodeMap(SpritePolygon collisionPolygon)
{
var polygon = (SpritePolygon)collisionPolygon.Clone();
polygon.MoveTo(Vector2.Zero);
if (nodeMaps.TryGetValue(polygon, out NodeMap nodeMap))
{
return(nodeMap);
}
var map = NodeMap.CreateFromTileMap(GameState.TileMap, polygon);
polygon.MoveTo(Vector2.Zero);
nodeMaps.Add(polygon, map);
return(map);
}