public void RemovePowerUps()
{
PendingPowerUp = null;
PendingProjectile = null;
PendingFence = null;
if ( powerUp != null )
{
powerUp.Revert();
powerUp = null;
}
}
public void Update( GameTime gameTime, KeyboardState key, KeyboardState oldkey, int width, int height, TankObject[] Tanks, HashSet<ProjectileObject> Projectiles, HashSet<FenceObject> Fences, HashSet<Pickup> Pickups, GraphicsDevice gd )
{
if ( key.IsKeyDown( Keys.KeyPlace ) && oldkey.IsKeyUp( Keys.KeyPlace ) && ( PlacedFences < FenceLimit || FenceLimit < 0 ) )
{
if ( PendingPowerUp == null && IsInGame )
{
PlacedFences++;
float dist = Vector2.Distance( Vector2.Zero, Origin );
Fences.Add( new BasicFence( GameTools.ReturnMove( dist / 4, angle, GameTools.ReturnMove( dist, angle + 45, Position ) ), GameTools.ReturnMove( dist / 4, angle, GameTools.ReturnMove( dist, angle - 45, Position ) ), 8, this, gameTime, gd ) );
}
else if ( PendingPowerUp != null )
{
PendingPowerUp.Use( Tanks, Projectiles, Fences, Pickups, gameTime );
PendingPowerUp = null;
}
}
if ( !IsInGame ) return;
if ( AI )
{
TankObject ClosestTank = null;
float dist = float.PositiveInfinity;
foreach ( TankObject Tank in Tanks )
{
float d = Vector2.Distance( Tank.Position, Position );
if ( d < dist && Tank.IsInGame && Tank != this )
{
dist = d;
ClosestTank = Tank;
}
}
if ( ClosestTank != null )
{
float ang = ( ( ( float )Math.Atan2( Position.Y - ClosestTank.Position.Y, Position.X - ClosestTank.Position.X ) * 180 / ( float )Math.PI ) + 180 ) % 360;
/*while ( angle < 0 )
{
angle += 360;
}
angle %= 480;
/*
* If (absolute of [heading - converted angle] <= 20) then turn to converted angle;
Otherwise If (heading - converted angle < -20) then turn -20 degrees;
Otherwise If (heading - converted angel > 20) then turn 20 degrees;
*
float factor = 10;
if ( Math.Abs( angle - ang ) <= factor ) angle = ang;
else if ( angle - ang < -factor ) angle -= factor;
else if ( angle - ang > factor ) angle += factor;
*/
angle = ang;
if ( ( gameTime.TotalGameTime - LastShoot ).TotalMilliseconds > 2000 )
{
Shoot( gameTime, width, height, Projectiles );
LastShoot = gameTime.TotalGameTime;
}
FilterMove( 5F, Fences, Pickups, gameTime );
return;
}
}
float moveFactor = 0;
if ( key.IsKeyDown( Keys.KeyDown ) )
{
IsGoingBackwards = true;
moveFactor -= Speed;
}
else
{
IsGoingBackwards = false;
}
if ( key.IsKeyDown( Keys.KeyUp ) )
{
IsGoingBackwards = false;
moveFactor += Speed;
}
if ( moveFactor != 0 )
{
FilterMove( moveFactor, Fences, Pickups, gameTime );
}
float angleFactor = 0;
if ( key.IsKeyDown( Keys.KeyLeft ) )
{
angleFactor -= Speed;
}
if ( key.IsKeyDown( Keys.KeyRight ) )
{
angleFactor += Speed;
}
angle %= 360;
while ( angle < 0 )
{
angle += 360;
}
FilterRotate( Fences, angleFactor );
if ( Position.X > width + Origin.X )
Position.X = -Origin.X;
if ( Position.X < -Origin.X )
Position.X = width + Origin.X;
if ( Position.Y > height + Origin.Y )
Position.Y = -Origin.Y;
if ( Position.Y < -Origin.Y )
Position.Y = height + Origin.Y;
foreach ( Pickup pickup in Pickups )
{
if ( GameTools.RotRectIntersectRect( Position, Origin, Width, Height, Rotation, pickup.BoundingBox ) )
{
pickup.Take( this, gameTime );
}
}
if ( key.IsKeyDown( Keys.KeyShoot ) && oldkey.IsKeyUp( Keys.KeyShoot ) && ( ShotsOnBoard < ShotLimit || ShotLimit <= 0 ) && IsInGame )
{
Shoot( gameTime, width, height, Projectiles );
}
if ( powerUp != null )
{
if ( powerUp.Update( gameTime, Tanks, Projectiles, Fences ) )
{
powerUp.Revert();
powerUp = null;
}
}
}
public bool AppendPowerUp( PowerUp powerUp, GameTime gameTime )
{
if ( powerUp is AppearingPowerUp )
return false;
else if ( powerUp is InstantPowerUp )
{
if ( PendingPowerUp == null )
{
PendingPowerUp = ( InstantPowerUp )powerUp;
PendingPowerUp.Take( this, gameTime );
return true;
}
else return false;
}
else if ( powerUp is TimedPowerUp )
{
if ( this.powerUp == null )
{
this.powerUp = ( TimedPowerUp )powerUp;
this.powerUp.Take( this, gameTime );
return true;
}
else return false;
}
else
{
throw new Exception( "Liek if this gets thrown, i'm a sheep" );
}
}
