/// <summary>
/// The is on ground.
/// </summary>
/// <param name="entity">
/// The entity.
/// </param>
/// <param name="entities">
/// The entities.
/// </param>
/// <param name="ground">
/// The ground.
/// </param>
/// <returns>
/// The <see cref="bool"/>.
/// </returns>
public bool IsOnGround(IBoundingBox entity, IEnumerable<IBoundingBox> entities, Func<IBoundingBox, bool> ground)
{
var entityExtended = new BoundingBox
{
X = entity.X,
Y = entity.Y + 1,
Width = entity.Width,
Height = entity.Height,
XSpeed = entity.XSpeed,
YSpeed = entity.YSpeed
};
var collidableEntities = entities.Where(ground).Where(x => x != entity).ToArray();
foreach (var collidableEntity in collidableEntities)
{
if (this.m_BoundingBoxUtilities.Overlaps(entityExtended, collidableEntity))
{
if (collidableEntity.Y > entity.Y)
{
return true;
}
}
}
return false;
}
public bool ApplyOverheadCheck(IBoundingBox entity, IEnumerable<IBoundingBox> entities, Func<IBoundingBox, bool> ground, float yGravity, bool bounce)
{
var entityExtended = new BoundingBox
{
X = entity.X,
Y = entity.Y - 1,
Width = entity.Width,
Height = entity.Height,
XSpeed = 0,
YSpeed = 0
};
var collidableEntities = entities.Where(ground).Where(x => x != entity).ToArray();
foreach (var collidableEntity in collidableEntities)
{
if (this.m_BoundingBoxUtilities.Overlaps(entityExtended, collidableEntity))
{
if (bounce)
{
if (yGravity > 0)
{
entity.YSpeed = Math.Abs(entity.YSpeed);
}
else
{
entity.YSpeed = -Math.Abs(entity.YSpeed);
}
}
else
{
entity.YSpeed = 1;
}
return true;
}
}
return false;
}