public override void Update(GameTime gameTime)
{
initialPosition = new Vector2(player.position.X + (player.dimension.X / 2) - (tex.Width / 2) - 10, player.position.Y + 10);
if (isFlying)
{
position += speed;
float xDiff = (initialPosition.X - 48) - position.X;
float yDiff = (initialPosition.Y - (speed.Y * 3)) - position.Y;
if (position.X < 0)
{
explosion.Position = position;
explosion.StartAnimation();
explodeSound.Play();
isReturning = false;
isFlying = false;
speed.X = Math.Abs(speed.X);
position = initialPosition;
score.multiplier = 1;
score.shieldScore--;
}
if (position.X >= 0 & speed.X < 0 & Math.Abs(xDiff) < ALLOWANCE_AREA & Math.Abs(yDiff) < ALLOWANCE_AREA)
{
isReturning = true;
speed.X = SHIELD_SPEED_X;
}
if (position.X >= Shared.stage.X - tex.Width)
{
speed.X = -SHIELD_SPEED_X;
hitWallSound.Play();
}
if (position.Y <= 0)
{
score.multiplier++;
speed.Y = SHIELD_SPEED_Y;
hitWallSound.Play();
}
if (position.Y + tex.Height >= Shared.stage.Y)
{
score.multiplier++;
speed.Y = -SHIELD_SPEED_Y;
hitWallSound.Play();
}
}
else
{
position = initialPosition;
isReturning = false;
KeyboardState ks = Keyboard.GetState();
if (ks.IsKeyDown(Keys.Up) && ks.IsKeyDown(Keys.Space))
{
speed.Y = -SHIELD_SPEED_Y;
isFlying = true;
shieldThrowSound.Play();
}
else if (ks.IsKeyDown(Keys.Down) && ks.IsKeyDown(Keys.Space))
{
speed.Y = SHIELD_SPEED_Y;
isFlying = true;
shieldThrowSound.Play();
}
else if (ks.IsKeyDown(Keys.Space))
{
speed.Y = 0;
isFlying = true;
shieldThrowSound.Play();
}
}
if (isReturning)
{
score.multiplier = 1;
float xDiff = (initialPosition.X - 48) - position.X;
float yDiff = (initialPosition.Y - (speed.Y * 3)) - position.Y;
position.X += xDiff * 0.2f;
position.Y += yDiff * 0.2f;
//When the shield gets closer, set the position to initial position
if (Math.Abs(initialPosition.X - position.X) < 9f)
{
isFlying = false;
isReturning = false;
getShieldSound.Play();
}
}
base.Update(gameTime);
}
public override void Update(GameTime gameTime)
{
foreach (var enemy in enemyList)
{
if (enemy.Visible)
{
//shield is going right and touching left side of the enemy
if (shield.speed.X > 0 &&
shield.getBound().Right + shield.speed.X > enemy.getBound().Left&&
shield.getBound().Left < enemy.getBound().Left&&
shield.getBound().Bottom > enemy.getBound().Top&&
shield.getBound().Top < enemy.getBound().Bottom)
{
shield.speed.X = -shield.speed.X;
score.score += (score.multiplier * enemy.enemyScore);
score.multiplier++;
enemy.Visible = false;
explosion.Position = enemy.position;
explosion.StartAnimation();
hitSound.Play();
explodeSound.Play();
}
//shield is going left and touching right side of the enemy
if (shield.speed.X < 0 &&
shield.getBound().Left + shield.speed.X < enemy.getBound().Right&&
shield.getBound().Right > enemy.getBound().Right&&
shield.getBound().Bottom > enemy.getBound().Top&&
shield.getBound().Top < enemy.getBound().Bottom)
{
shield.speed.X = -shield.speed.X;
score.score += (score.multiplier * enemy.enemyScore);
score.multiplier++;
enemy.Visible = false;
explosion.Position = enemy.position;
explosion.StartAnimation();
hitSound.Play();
explodeSound.Play();
}
//shield is going down and touching top side of the enemy
if (shield.speed.Y > 0 &&
shield.getBound().Bottom + shield.speed.Y > enemy.getBound().Top&&
shield.getBound().Top < enemy.getBound().Top&&
shield.getBound().Right > enemy.getBound().Left&&
shield.getBound().Left < enemy.getBound().Right)
{
shield.speed.Y = -shield.speed.Y;
score.score += (score.multiplier * enemy.enemyScore);
score.multiplier++;
enemy.Visible = false;
explosion.Position = enemy.position;
explosion.StartAnimation();
hitSound.Play();
explodeSound.Play();
}
//shield is going up and touching bottom side of the enemy
if (shield.speed.Y < 0 &&
shield.getBound().Top + shield.speed.Y < enemy.getBound().Bottom&&
shield.getBound().Bottom > enemy.getBound().Bottom&&
shield.getBound().Right > enemy.getBound().Left&&
shield.getBound().Left < enemy.getBound().Right)
{
shield.speed.Y = -shield.speed.Y;
score.score += (score.multiplier * enemy.enemyScore);
score.multiplier++;
enemy.Visible = false;
explosion.Position = enemy.position;
explosion.StartAnimation();
hitSound.Play();
explodeSound.Play();
}
}
}
base.Update(gameTime);
}
