public void GetItems(Line line, IntegerHandler callback)
{
Vector2 start = line.DebutV2;
Vector2 direction = line.FinV2 - start;
Vector2 multipliedDirection;
float length = line.Longueur;
direction.Normalize();
bool wantsNext = true;
for (int i = 0; i < length; i += CellSize / 2)
{
Vector2.Multiply(ref direction, i, out multipliedDirection);
Vector2 position;
Vector2.Add(ref start, ref multipliedDirection, out position);
Vector2.Subtract(ref position, ref SpaceUpperLeft, out position);
Vector2.Divide(ref position, CellSize, out position);
int x_1 = (int) position.X;
int y_1 = (int) position.Y;
if (x_1 >= 0 && x_1 < NbColumns && y_1 >= 0 && y_1 < NbRows)
for (int k = 0; k < Grid[y_1][x_1].Count; k++)
{
if (!wantsNext)
return;
wantsNext = callback(Grid[y_1][x_1][k]);
}
}
}
public IEnumerable<int> GetItems(Line line)
{
Vector2 start = line.DebutV2;
Vector2 direction = line.FinV2 - start;
Vector2 multipliedDirection;
float length = line.Longueur;
direction.Normalize();
for (int i = 0; i < length; i+= CellSize / 2)
{
Vector2.Multiply(ref direction, i, out multipliedDirection);
Vector2 position;
Vector2.Add(ref start, ref multipliedDirection, out position);
Vector2.Subtract(ref position, ref SpaceUpperLeft, out position);
Vector2.Divide(ref position, CellSize, out position);
int x_1 = (int)position.X;
int y_1 = (int)position.Y;
if (x_1 >= 0 && x_1 < NbColumns && y_1 >= 0 && y_1 < NbRows)
for (int k = 0; k < Grid[y_1][x_1].Count; k++)
yield return Grid[y_1][x_1][k];
}
}
public static bool LineRectangleCollision(Line line, PhysicalRectangle rectangle)
{
return Collisions.LineRectangleCollision(line, rectangle);
}
