public Ball(Texture2D image, Vector2 position, Color color, Vector2 speed, float scale)
: base(position, color, image, scale)
{
this.Speed = speed;
Score = 0;
IsGrowing = false;
Hitbox = new CircleCollider(Texture.Width * Scale / 2, Position + new Vector2(Texture.Width * Scale / 2, Texture.Height * Scale / 2));
}
public bool Intersects(CircleCollider other)
{
//step1: calculate the distance between the two positions
//step2: calculate the sum of the radii
//if the sum is greater than or equal to the distance between the centers
//the objects collide, return true
//intersection when, distance between centers is smaller than their Radii added together
//find the distance between the two balls
float distance = Vector2.Distance(Center, other.Center);
if (Radius + other.Radius >= distance)
{
return(true);
}
return(false);
}
public void Update(GameTime time, Viewport port, MouseState ms)
{
IsGrowing = false;
Position += Speed * time.ElapsedGameTime.Milliseconds;
// HitBox.X = (int)this.position.X;
//HitBox.Y = (int)this.position.Y;
// = new CircleCollider(center position of object, width of the texture to act as the radius)
Hitbox = new CircleCollider(Texture.Width * Scale / 2, Position + new Vector2(Texture.Width * Scale / 2, Texture.Height * Scale / 2));
if (Hitbox.ContainsPoint(ms.X, ms.Y))
{
Grow();
}
if (Position.X < 0)
{
Speed.X = Math.Abs(Speed.X);
}
else if (Position.X + Texture.Width * Scale > port.Width)
{
Speed.X = -Math.Abs(Speed.X);
}
if (Position.Y < 0)
{
Speed.Y = Math.Abs(Speed.Y);
}
else if (Position.Y + Texture.Height * Scale > port.Height)
{
Speed.Y = -Math.Abs(Speed.Y);
}
if (IsGrowing)
{
Tint = Color.Red;
}
else
{
Tint = Color.White;
}
}