//*********************************************************************************************************************************************
//
// Method Name: CheckBallCollisionOnSideBorders
//
// Description:
// Check if the call collides with the left or right side of the borders and reverse the X velocity if so.
//
// Arguments:
// N/A
//
// Return:
// N/A
//
//*********************************************************************************************************************************************
private void CheckBallCollisionOnSideBorders()
{
// Reverse the ball x velocity if the left or right border is hit.
if (mHitBox.X < 0 ||
mHitBox.X > (BreakoutConstants.SCREEN_PLAY_AREA_WIDTH - mHitBox.Width))
{
Vector.ReverseComponentX();
}
}
//*********************************************************************************************************************************************
//
// Method Name: CheckRectangleEdgeCollision
//
// Description:
// Determines which edge the ball collided with against the brick. Collision with the top or bottom will reverse the balls y velocity,
// collision with the left or right edge will reverse the balls x velocity, and a corner collision will reverse both the balls x and y
// velocity.
//
// Arguments:
// theBrick - The brick the ball collided with.
//
// Return:
// N/A
//
//*********************************************************************************************************************************************
private void CheckRectangleEdgeCollision(Brick theBrick)
{
// Check if the center of the ball is between the width of the brick. If so, then the ball hit the bottom or top side of the brick.
// The ball's Y velocity is reversed in this case.
if ((mInnerHitDetection.X + mInnerHitDetection.Width) > theBrick.HitBox.X &&
mInnerHitDetection.X < (theBrick.HitBox.X + theBrick.HitBox.Width))
{
Vector.ReverseComponentY();
}
// Check if the center of the ball is between the height of the brick. If so, then the ball hit the left or right side of the brick.
// The ball's X velocity is reversed in this case.
else if ((mInnerHitDetection.Y + mInnerHitDetection.Height) > theBrick.HitBox.Y &&
mInnerHitDetection.Y < (theBrick.HitBox.Y + theBrick.HitBox.Height))
{
Vector.ReverseComponentX();
}
// Otherwise the ball hit the corner of the brick.
// The ball's x and y velocity are reversed in this case.
else
{
Vector.ReverseComponentX();
Vector.ReverseComponentY();
}
}
