public void TopCollision(Collider other)
{
if (other is T)
{
Parent.Y = other.Bottom()
+ World.SPACE_BETWEEN_THINGS;
Parent.VerticalSpeed = 0;
}
}
public void Top(Collider Source, Collider target)
{
if (target.Parent is Block)
{
//TODO: - offsetY
Source.Parent.Position.Y = target.Bottom() + target.Height + 1;
Source.Parent.Velocity.Y = 0;
}
}
public static void IsCollidingVertically(
this Collider a,
Collider b)
{
if (a.Left() <= b.Right() &&
b.Left() <= a.Right() &&
a.Top() <= b.Bottom() &&
b.Top() <= a.Bottom())
{
if (a.Bottom() - b.Bottom() > 0)
{
a.Collision.Collide(a, CollisionDirection.Top, b);
}
else if (a.Bottom() - b.Bottom() < 0)
{
a.Collision.Collide(a, CollisionDirection.Bot, b);
}
}
}
public void Collide(Collider Source, CollisionDirection direction, Collider Target)
{
if (Target.Parent is Block == false)
{
return;
}
if (direction == CollisionDirection.Bot)
{
var newY = Target.Top() - Source.Height - Source.OffsetY - 1;
//var diff = newY - Source.Parent.Position.Y;
//if (diff > Target.Height || diff < -Target.Height)
// return;
Source.Parent.Position.Y = newY;
Source.Parent.Velocity.Y = 0;
return;
}
if (direction == CollisionDirection.Top)
{
var newY = Target.Bottom() - Source.OffsetY + 1;
//var diff = newY - Source.Parent.Position.Y;
//if (diff > Target.Height || diff < -Target.Height)
// return;
Source.Parent.Position.Y = newY;
Source.Parent.Velocity.Y = 0;
return;
}
if (direction == CollisionDirection.Left)
{
var newX = Target.Right() - Source.OffsetX + 1;
//var diff = newX - Source.Parent.Position.X;
//if (diff > Target.Width || diff < -Target.Width)
// return;
Source.Parent.Position.X = newX;
Source.Parent.Velocity.X = 0;
return;
}
if (direction == CollisionDirection.Right)
{
var newX = Target.Left() - Source.OffsetX - Source.Width - 1;
//var diff = newX - Source.Parent.Position.X;
//if (diff > Target.Width || diff < -Target.Width)
// return;
Source.Parent.Position.X = newX;
Source.Parent.Velocity.X = 0;
return;
}
}
public static void IsCollidingV(
this Collider a,
Collider b)
{
if (a.Left() <= b.Right() &&
b.Left() <= a.Right() &&
a.Top() <= b.Bottom() &&
b.Top() <= a.Bottom())
{
if (a.Bottom() - b.Bottom() > 0)
{
a.Collision.Top(a, b);
//b.Collision.Bot(b,a);
}
else if (a.Bottom() - b.Bottom() < 0)
{
a.Collision.Bot(a, b);
//b.Collision.Top(b,a);
}
}
}
private static void Top(Collider Source, Collider target)
{
if (target.Parent.Identifier == Identifier.Block)
{
//TODO: - offsetY
Source.Parent.Position.Y =
target.Bottom()
- Source.Area.Y
+ 1;
//Source.Parent.Velocity.Y = 0;
}
}
public static void IsCollidingH(
this Collider a,
Collider b)
{
if (a.Left() <= b.Right() &&
b.Left() <= a.Right() &&
a.Top() <= b.Bottom() &&
b.Top() <= a.Bottom())
{
if (a.Right() - b.Right() > 0)
{
a.Handler.Left(a, b);
b.Handler.Right(b, a);
}
else if (a.Right() - b.Right() < 0)
{
a.Handler.Right(a, b);
b.Handler.Left(b, a);
}
}
}
public static float CenterY(this Collider collider)
{
return((collider.Top() + collider.Bottom()) * 0.5f);
}
public static int CenterY(this Collider collider) => (collider.Top() + collider.Bottom()) / 2;