//*****************************************************************************************
//Method name: IsClose(MovingObj other)
//Description: Checks if two objects are close enough to begin actual hit detection
//Parameters: MovingObj other - the other object to be checked
//Returns: bool - if they are close or not
//*****************************************************************************************
public bool IsClose(MovingObj other)
{
bool retVal = false;
other.AllLocs.ForEach(o =>
{
if (Math.Sqrt(Math.Pow(_location.X - o.X, 2) + Math.Pow(_location.Y - o.Y, 2)) < _size * 2 + other._size * 2)
{
retVal = true;
}
});
return(retVal);
}
//*****************************************************************************************
//Method name: IsColliding(MovingObj other, Graphics gr)
//Description: Checks if two object's regions are colliding.
//Parameters: MovingObj other - the object to check against
// Graphics gr - the graphics area on which they are drawn
//Returns: bool - if they are colliding or not
//*****************************************************************************************
public bool IsColliding(MovingObj other, Graphics gr)
{
Region myRegion;
Region othRegion;
bool retVal = false;
other.AllLocs.ForEach(o =>
{
myRegion = new Region(GetPath(_location));
othRegion = new Region(other.GetPath(o));
myRegion.Intersect(othRegion);
if (!myRegion.IsEmpty(gr))
{
retVal = true;
}
});
return(retVal);
}
//************************************************************************
//Method name: HandleGameLoop(BufferedGraphics bg)
//Purpose: Runs the game and applies all rules to the game objects.
//Parameters: BufferedGraphics bg - the graphics to check regions against
//Returns: void
//************************************************************************
private void HandleGameLoop(BufferedGraphics bg)
{
//rotates the ship on rotate controls
if (_gameInputs.IsA_Down)
{
_myShip.Rotate(RotationType.Left);
}
if (_gameInputs.IsD_Down)
{
_myShip.Rotate(RotationType.Right);
}
//checks for forward or backward movement.
if (_gameInputs.IsW_Down || _gameInputs.IsS_Down)
{
_myShip.Move((_gameInputs.IsW_Down) ? Direction.Forward : Direction.Backward);
}
else
{
_myShip.Move(Direction.None);
}
//shoots ship's weapon. Only shoots on intervals of fireRate.
if (_gameInputs.IsSpace_Down)
{
if (shotsFired % fireRate == 0)
{
shotsFired = 0;
_allRenderable.Add(new Bullet(new PointF(_myShip.Pos.X, _myShip.Pos.Y), _myShip.Heading));
_soundEng.Play2D(@"..\..\..\laserGun.wav");
}
shotsFired++;
}
else
{
shotsFired = 0;
}
//checks if pause button is pressed.
if (_gameInputs.IsEsc_Down)
{
_currentState = GameState.PauseGame;
_currentMenu = new Menu(_currentState, new PointF(_client.Width / 2, _client.Height / 2));
_allRenderable.Add(_currentMenu);
}
//checks to see if a new rock should be spawned.
if (_rockTimer.Elapsed.Seconds > _secondsBetweenRockSpawns)
{
_rockTimer.Reset();
_rockTimer.Start();
_allRenderable.Add(new Rock(Rock.RockSize.Big, new PointF(_rng.Next(0, _client.Width), _rng.Next(0, _client.Height)), true));
}
//applies game rules to all objects.
_allRenderable.ForEach(o =>
{
if (o is MovingObj)
{
//move all objects one tick
MovingObj temp = (MovingObj)o;
temp.Tick(_client);
//applies rules to bullets. Checks for collisions and removes if necessary.
if (temp is Bullet)
{
Bullet currBullet = (Bullet)temp;
CheckBulletCollisionOnRocks(currBullet, bg.Graphics);
if (currBullet.FlaggedForRemoval)
{
_killList.Add(currBullet);
}
}
//applies rules to rocks. Checks for collisions with ships and ends game if necessary,
if (temp is Rock)
{
Rock currRock = (Rock)temp;
if (currRock.FlaggedForRemoval)
{
_killList.Add(currRock);
}
//Checks for ship collisions.
if (!_myShip.IsInvincible &&
!currRock.IsFadingIn &&
_myShip.IsClose(currRock) &&
_myShip.IsColliding(currRock, bg.Graphics))
{
_ld.TookDamage();
_myShip.SetPosition(new Point(_client.Width / 2, _client.Height / 2));
_soundEng.Play2D(@"..\..\..\takeDamage.wav");
if (_ld.CurrentLives > 0)
{
_myShip.ActivateInvincibility();
}
//ends game here if no more lives.
else
{
_currentState = GameState.PostGame;
_currentMenu = new Menu(GameState.PostGame, new PointF(_client.Width / 2, _client.Height / 2));
_newObjects.Add(_currentMenu);
}
}
}
}
});
}