public void Update(float secondsElapsed, PlayerTank playerTank)
{
var vectorToPlayer = playerTank.Position - this.position;
var angleToPlayer = Math.Atan2(vectorToPlayer.Y, vectorToPlayer.X) + Math.PI * 0.5;
double clockwiseDist, counterDist;
if (rotation > angleToPlayer)
{
clockwiseDist = Pi2 + angleToPlayer - rotation;
counterDist = rotation - angleToPlayer;
}
else
{
clockwiseDist = angleToPlayer - rotation;
counterDist = Pi2 + rotation - angleToPlayer;
}
if (clockwiseDist < counterDist)
{
RotateRight(secondsElapsed);
}
else
{
RotateLeft(secondsElapsed);
}
}
/// <summary>
/// LoadContent will be called once per game and is the place to load
/// all of your content.
/// </summary>
protected override void LoadContent( )
{
spriteBatch = new SpriteBatch(GraphicsDevice);
Bullet.Load(this.Content);
playerTank = new PlayerTank( );
enemyTank = new EnemyTank( );
Tank.Texture = this.Content.Load <Texture2D>("tank");
_stoneTexture = this.Content.Load <Texture2D>("Block_tile");
_woodTexture = this.Content.Load <Texture2D>("Block_wood");
_backgroundTexture = this.Content.Load <Texture2D>("sand");
Explosion.Load(this.Content);
_terrain = Enumerable.Range(1, 100)
.Select(i => RandomTerrain( ))
.ToArray( )
.Distinct(new BlockLocationComparer( ))
.ToArray( );
}