public String Shoot(double polarAngle, double scanAngle, int energy, String attackCode)
{
string bigoutput = "";
if (this.Energy < energy)
{
Console.WriteLine("You do not have enough energy to shoot");
return(null);
}
this.Energy -= energy;
// cordinates of the spaceship
// cordinates of the spaceship
double x = this.XCoordinate;
double y = this.YCoordinate;
int r = this.Capacity / 100;
ArrayList list = new ArrayList();
int dist = (int)Math.Round(energy / Math.Abs(Math.Sin((Math.PI - scanAngle) / 2 * Math.PI / 180.0)), 0);
double xA = Math.Round(x + r * Math.Cos(polarAngle * Math.PI / 180.0), 2);
double yA = Math.Round(y + r * Math.Sin(polarAngle * Math.PI / 180.0), 2);
// B and C are points of the scan extremes
double xB = Math.Round(xA + dist * Math.Cos((polarAngle - scanAngle * 0.5) * Math.PI / 180.0), 2);
double yB = Math.Round(yA + dist * Math.Sin((polarAngle - scanAngle * 0.5) * Math.PI / 180.0), 2);
double xC = Math.Round(xA + dist * Math.Cos((polarAngle + scanAngle * 0.5) * Math.PI / 180.0), 2);
double yC = Math.Round(yA + dist * Math.Sin((polarAngle + scanAngle * 0.5) * Math.PI / 180.0), 2);
Point a, b, c;
a = new Point(xA, yA);
b = new Point(xB, yB);
c = new Point(xC, yC);
// get a list of the planets and spacehsips
// check if they are inside the triangle ABC
// or if the sides of the triangle cu the spaceships (as a circle)
var dict = this.SpaceshipsInsideWithShadow(a, b, c);
foreach (KeyValuePair <Spaceship, double> kvp in dict)
{
Console.WriteLine("You attacked " + ((Spaceship)(kvp.Key)).Name + " with ratio " + kvp.Value);
}
foreach (KeyValuePair <Spaceship, double> kvp in dict)
{
Console.WriteLine("You attacked " + ((Spaceship)(kvp.Key)).Name + " with ratio " + kvp.Value);
Spaceship ship = kvp.Key;
list.Add(ship);
double x_coord = ship.XCoordinate;
double y_coord = ship.YCoordinate;
int other_radius = ship.Capacity / 100;
double ratio; // ratio of the energy with which we are attacking
// if the spaceship is inside the shoot array'
if (GameMaths.IsInside(a, b, c, new Point(x_coord, y_coord)))
{
// B'C' is parallel to BC, we need the the slope and the other spaceship coordinates to find the equation and distance of B'C'
double slope = (yB - yC) / (xB - xC);
// find an equation of the type y = slope * x + b_
// aim: find out another point on B'C'
double b_ = y_coord - slope * x_coord;
double x_new_point = 1; // random, doesn't matter
double y_new_point = slope * x_new_point + b_;
Point b_prime = GameMaths.LineIntersection(a, b, new Point(x_coord, y_coord), new Point(x_new_point, y_new_point));
Point c_prime = GameMaths.LineIntersection(a, c, new Point(x_coord, y_coord), new Point(x_new_point, y_new_point));
double dist_b_c_prime = GameMaths.Distance2Points(b_prime, c_prime);
// multiple cases depending on where the spaceship lies on the line
if (GameMaths.DistanceToLine(GameMaths.LineEquation(a, b), x_coord, y_coord) < other_radius) // other spaceship is closer to AB, and extends outside
{
double distance_to_ab = GameMaths.DistanceToLine(GameMaths.LineEquation(a, b), x_coord, y_coord);
double dist_to_add;
double b_o_dist = distance_to_ab * Math.Sin(((Math.PI - scanAngle) / 2) * Math.PI / 180.0);
if (dist_b_c_prime - b_o_dist >= other_radius)
{
dist_to_add = other_radius;
}
else
{
dist_to_add = dist_b_c_prime - b_o_dist;
}
ratio = (dist_to_add + b_o_dist) / dist_b_c_prime;
}
else if (GameMaths.DistanceToLine(GameMaths.LineEquation(a, c), x_coord, y_coord) < other_radius)
{
double distance_to_ac = GameMaths.DistanceToLine(GameMaths.LineEquation(a, c), x_coord, y_coord);
double dist_to_add;
double c_o_dist = distance_to_ac * Math.Sin(((Math.PI - scanAngle) / 2) * Math.PI / 180.0);
if (dist_b_c_prime - c_o_dist >= other_radius)
{
dist_to_add = other_radius;
}
else
{
dist_to_add = dist_b_c_prime - c_o_dist;
}
ratio = (dist_to_add + c_o_dist) / dist_b_c_prime;
}
else
{
// spaceship is on the line equally distributed
if (2 * other_radius < dist_b_c_prime)
{
ratio = (2 * other_radius) / dist_b_c_prime;
}
else
{
ratio = 1;
}
}
ratio += dict[ship];
ratio /= 2;
ratio *= (StringDistance.Compute(ship.Code, attackCode) / 16.0 + 1) / 2.0;
bigoutput += this.Attack(ship, (int)(Math.Round((energy * ratio), 0)));
}
// if the other spacehsip center is outside of the shoot triangle
else if (GameMaths.ContainsSpaceship(a, b, c, new Point(x_coord, y_coord), other_radius))
// && this.UserId != ship.UserId)
{
// B'C' is parallel to BC, we need the the slope and the other spaceship coordinates to find the equation and distance of B'C'
double slope = (yB - yC) / (xB - xC);
// find an equation of the type y = slope * x + b
// aim: find out another point on B'C'
double b_ = y_coord - slope * x_coord;
double x_new_point = 1; // random, doesn't matter
double y_new_point = slope * x_new_point + b_;
Point b_prime = GameMaths.LineIntersection(a, b, new Point(x_coord, y_coord), new Point(x_new_point, y_new_point));
Point c_prime = GameMaths.LineIntersection(a, c, new Point(x_coord, y_coord), new Point(x_new_point, y_new_point));
double dist_b_c_prime = GameMaths.Distance2Points(b_prime, c_prime);
ratio = (other_radius - GameMaths.SmallestDistance(a, b, c, new Point(x_coord, y_coord), other_radius)) / dist_b_c_prime;
ratio += dict[ship];
ratio /= 2;
ratio *= (StringDistance.Compute(ship.Code, attackCode) / 16.0 + 1) / 2.0;
bigoutput += this.Attack(ship, (int)(Math.Round((energy * ratio), 0)));
}
}
return(bigoutput);
}
public void Maths_LineIntersectsCircleIn2Points_()
{
Double[] l = { 40, -40, -4000 };
Assert.IsTrue(GameMaths.LineIntersectsCircle(GameMaths.LineEquation(new Point(10, 10),
new Point(50, 50)), 20, 30, 10));
}