private void HandleCollision(Collision2D collision)
{
Vector2 moveDirection;
// If the ice collided with the player, the ice should move away from the player
if (collision.gameObject.CompareTag("Player") || collision.gameObject.CompareTag("Ice"))
{
Direction2D hitFromDir = collision.GetDirectionHitCameFrom();
moveDirection = hitFromDir.Vector;
}
// If the ice collided with something else like a wall
else
{
Direction2D hitFromDir = collision.GetDirectionHitCameFrom();
//Direction2D curMoveDirection = parentPhys.velocity.GetDirection2D();
// If the direction changed to the opposite direction we were previously moving in,
// the ice cube probably had a direct collision and should stop moving
if (hitFromDir.IsOppositeDirection(previousDirection))
{
moveDirection = Vector2.zero;
}
// If the direction only changed slightly and is not in the opposite direction,
// the ice cube probably just brushed against something and should keep moving as it was
else
{
moveDirection = previousDirection.Vector;
}
}
// Set the ice's velocity to be fully in its movement direction
parentPhys.velocity = moveDirection * slideSpeed;
// Update the previous direction
previousDirection = parentPhys.velocity.ToDirection2D();
}
public static QuadDirection2D Add(this Direction2D curDir, Direction2D otherDir)
{
// If current direction is none
if (curDir == Direction2D.none)
{
return(otherDir.ToQuadDirection2D());
}
// If other direction is none
if (otherDir == Direction2D.none)
{
return(curDir.ToQuadDirection2D());
}
// Neither direction is none
// If they are the same direction
if (curDir == otherDir)
{
return(curDir.ToQuadDirection2D());
}
// If they are opposite directions
if (curDir.IsOppositeDirection(otherDir))
{
return(QuadDirection2D.none);
}
// They are orthogonal
// Left
if (curDir == Direction2D.left)
{
if (otherDir == Direction2D.up)
{
return(QuadDirection2D.upLeft);
}
if (otherDir == Direction2D.down)
{
return(QuadDirection2D.downLeft);
}
}
// Right
if (curDir == Direction2D.right)
{
if (otherDir == Direction2D.up)
{
return(QuadDirection2D.upRight);
}
if (otherDir == Direction2D.down)
{
return(QuadDirection2D.downRight);
}
}
// Up
if (curDir == Direction2D.up)
{
if (otherDir == Direction2D.left)
{
return(QuadDirection2D.upLeft);
}
if (otherDir == Direction2D.right)
{
return(QuadDirection2D.upRight);
}
}
// Down
if (curDir == Direction2D.down)
{
if (otherDir == Direction2D.left)
{
return(QuadDirection2D.downLeft);
}
if (otherDir == Direction2D.right)
{
return(QuadDirection2D.downRight);
}
}
Debug.LogError("Unhandled conditions in Direction2D");
return(QuadDirection2D.none);
}