/// <summary>
/// Rotates a ship left for the given shipID.
/// </summary>
public void RotateShipLeft(int shipID)
{
Ship ship = theShips[shipID];
Vector2D newDir = ship.GetOrientation();
newDir.Rotate(-turningRate);
ship.SetOrientation(newDir);
}
/// <summary>
/// Creates a projectile with the same location and orientation of the ship which fired it, and adds it to the world. Then tells the ship that is projectile has been fired.
/// </summary>
/// <param name="currentShip">ship which fired this projectile</param>
public void SpawnProjectile(Ship currentShip)
{
if (currentShip.ReadyToFire())
{
// Need to adjust spawn location Y-axis
Vector2D projLocation = new Vector2D(currentShip.GetLocation().GetX(), currentShip.GetLocation().GetY());
Vector2D projDir = new Vector2D(currentShip.GetOrientation());
Vector2D projVeloc = new Vector2D(currentShip.GetOrientation().GetX() * ProjVelocity, currentShip.GetOrientation().GetY() * ProjVelocity);
Projectile newProj = new Projectile(projIDs, projLocation, projDir, true, currentShip.GetID()); // May want to shift projectile
newProj.SetVelocity(projVeloc);
this.addProjectile(newProj);
projIDs++;
lock (shipDictionary)
{
this.shipDictionary[currentShip.GetID()].FireProjectile();
}
}
}
/// <summary>
/// Calculates the instant acceleration from stars and engine thrusts.
/// </summary>
/// <param name="ship"></param>
/// <returns></returns>
private Vector2D CalculateInstantAcceleration(Ship ship)
{
Vector2D totalAcc = new Vector2D(0, 0);
// add gravity from each star
foreach (Star star in theStars.Values)
{
totalAcc += CalculateForce(ship, star);
}
// if thrust add enginestrength
if (ship.IsThrusting())
{
totalAcc += (ship.GetOrientation() * engineStrength);
}
// return accumulated vector
return(totalAcc);
}
public void TestUpdatingShipLocationInWorldWithNewShip()
{
World testWorld = new World();
testWorld.SpawnShip(1, "testName");
Ship firstFrame = (Ship)testWorld.getPlayers()[1];
double xShipFirstFrame = firstFrame.GetLocation().GetX();
double yShipFirstFrame = firstFrame.GetLocation().GetY();
Ship secondFrame = new Ship(1, firstFrame.GetLocation() + firstFrame.GetLocation(), firstFrame.GetOrientation(), false, "testName", 5, 0);
testWorld.addShip(secondFrame);
Assert.IsTrue(testWorld.getPlayers().Count == 1);
Ship sameShip = (Ship)testWorld.getPlayers()[1];
double xShipSecondFrame = sameShip.GetLocation().GetX();
double yShipSecondFrame = sameShip.GetLocation().GetY();
Assert.IsTrue(xShipFirstFrame != xShipSecondFrame);
Assert.IsTrue(yShipFirstFrame != yShipSecondFrame);
}
