public static List <Vector2> CalcCircleCollisionPoints(float radius, float minLength)
{
float minTheta = MathsExt.CalcMinTheta(radius, minLength);
List <Vector2> relativeCollisionPoints = new List <Vector2>();
for (float theta = 0; theta <= 2 * Math.PI - minTheta; theta += minTheta)
{
relativeCollisionPoints.Add(Mechanics.VectorComponents(radius, theta));
}
return(relativeCollisionPoints);
}
private Vector2 ApplyDamping(Vector2 vector)
{
Vector2 dampedVelocity = vector *= _friction;
if (Mechanics.VectorMagnitude(dampedVelocity) < 16f)
{
return(Vector2.Zero);
}
else
{
return(dampedVelocity);
}
}
public void ResolveCollisions(bool[,] collisionMap, GameTime gameTime)
{
List <Vector2> collidingPoints = Collision.CheckCollision(collisionMap, transformedPolyPoints);
if (collidingPoints.Count > 0)
{
collided = true;
stable = true;
Vector2 response = Collision.CalculateResponseVector(collidingPoints, _potential);
Vector2 reflection = Mechanics.ReflectionVector(velocity, response);
UpdateResponseVelocity(ApplyDamping(reflection), gameTime);
UpdateCollisionPoints(position, rotation);
if (Collision.CheckCollision(collisionMap, transformedPolyPoints).Count != 0)
{
UpdateResponseVelocity(reflection, gameTime);
}
}
else
{
collided = false;
stable = false;
UpdateRealPosition();
}
}
public void ThrowAgain(float power, float angle, Vector2 initialPosition)
{
inMotion = true;
position = initialPosition;
velocity = Mechanics.VectorComponents(power, angle);
}
public Fireball(Vector2 initialPosition, float throwPower, float throwAngle) :
base(initialPosition, MASS, FRICTION, true, _minCollisionPolyPointDistance)
{
velocity = Mechanics.VectorComponents(throwPower, throwAngle);
inMotion = true;
}