public static WallCoord RayCast(IScene scene, LineF ray)
{
WallCoord wallCoord = null;
float minDist = -1;
foreach (IWall wall in scene.GetAll().OfType<IWall>())
{
Vector2[] vertices = wall.GetWorldVertices().ToArray();
for (int i = 0; i < vertices.Length; i++)
{
int iNext = (i + 1) % vertices.Length;
IntersectCoord coord = MathExt.LineLineIntersect(ray, new LineF(vertices[i], vertices[iNext]), false);
if (coord.Exists)
{
float dist = ((Vector2)coord.Position - ray[0]).Length;
if ((minDist == -1 || minDist < dist))
{
minDist = dist;
wallCoord = new WallCoord(wall, i, (float)coord.TLast);
}
}
}
}
return wallCoord;
}
