/// <summary>
/// twice collision check translation
/// </summary>
public static void SuperTranslate(ICollisionAgent agent, Vector2 movement, IEnumerator <Box> boxEnum)
{
Box box = agent.box;
float f;
//agent is moved on each axis separately
if (movement.y != 0f)
{
f = movement.y > 0f ? -0.5f : 0.5f; //set multiplier based on move direction
box.y += movement.y; //apply movement
while (boxEnum.MoveNext()) //traverse collection of solid boxes
{
if (Intersects(box, boxEnum.Current)) //test applied movement
{
//upon collision, place agent on appropriate edge of collider
box.y = boxEnum.Current.y + f * (boxEnum.Current.height + box.height + padding);
}
}
}
//repeat above for x-axis
if (movement.x != 0f)
{
boxEnum.Reset(); //reset enumerator for reuse
f = movement.x > 0f ? -0.5f : 0.5f;
box.x += movement.x;
while (boxEnum.MoveNext())
{
if (Intersects(box, boxEnum.Current))
{
box.x = boxEnum.Current.x + f * (boxEnum.Current.width + box.width + padding);
}
}
}
agent.SetPosition(box.Center); //apply final position
}
public static void SuperTranslate(ICollisionAgent mover, Vector2 movement, IEnumerable <Box> boxes)
{
SuperTranslate(mover, movement, boxes.GetEnumerator());
}
