/// <summary>
/// Creates a new instance of a Drill enemy ship
/// </summary>
/// <param name="content">A ContentManager to load resources with</param>
/// <param name="position">The position of the Drill ship in the game world</param>
public Drill(uint id, ContentManager content, bool enterLeft)
: base(id)
{
if (enterLeft)
{
position = new Vector2(0,-100);
}
else
{
position = new Vector2(800-25, -100);
}
moveState = DrillMoveState.Enter;
spritesheet = content.Load<Texture2D>("Spritesheets/newshv.shp.000000");
spriteBounds[(int)DrillSpinState.Spin1].X = 0;
spriteBounds[(int)DrillSpinState.Spin1].Y = 0;
spriteBounds[(int)DrillSpinState.Spin1].Width = 25;
spriteBounds[(int)DrillSpinState.Spin1].Height = 57;
spriteBounds[(int)DrillSpinState.Spin2].X = 24;
spriteBounds[(int)DrillSpinState.Spin2].Y = 0;
spriteBounds[(int)DrillSpinState.Spin2].Width = 25;
spriteBounds[(int)DrillSpinState.Spin2].Height = 57;
SpinState = DrillSpinState.Spin1;
timer = 5;
attackTimer = 20;
attack = false;
velocity = new Vector2(75, 400);
}
/// <summary>
/// Creates a new instance of a Drill enemy ship
/// </summary>
/// <param name="content">A ContentManager to load resources with</param>
/// <param name="position">The position of the Drill ship in the game world</param>
public Drill(uint id, ContentManager content, bool enterLeft) : base(id)
{
if (enterLeft)
{
position = new Vector2(0, -100);
}
else
{
position = new Vector2(800 - 25, -100);
}
moveState = DrillMoveState.Enter;
spritesheet = content.Load <Texture2D>("Spritesheets/newshv.shp.000000");
spriteBounds[(int)DrillSpinState.Spin1].X = 0;
spriteBounds[(int)DrillSpinState.Spin1].Y = 0;
spriteBounds[(int)DrillSpinState.Spin1].Width = 25;
spriteBounds[(int)DrillSpinState.Spin1].Height = 57;
spriteBounds[(int)DrillSpinState.Spin2].X = 24;
spriteBounds[(int)DrillSpinState.Spin2].Y = 0;
spriteBounds[(int)DrillSpinState.Spin2].Width = 25;
spriteBounds[(int)DrillSpinState.Spin2].Height = 57;
SpinState = DrillSpinState.Spin1;
timer = 5;
attackTimer = 20;
attack = false;
velocity = new Vector2(75, 400);
}
/// <summary>
/// Updates the Drill ship
/// </summary>
/// <param name="elapsedTime">The in-game time between the previous and current frame</param>
public override void Update(float elapsedTime)
{
//Is the ship attacking?
if (attack)
{
//The ship is attacking. Animate drill.
timer--;
if (timer == 0)
{
if (SpinState == DrillSpinState.Spin1)
{
SpinState = DrillSpinState.Spin2;
}
else
{
SpinState = DrillSpinState.Spin1;
}
timer = 5;
}
//Move down if ship attack timer is ready.
if (attackTimer == 0)
{
position.Y += elapsedTime * velocity.Y;
}
else
{
attackTimer--;
}
}
else
{
//The ship is not attacking. Check for the player's position.
PlayerShip player = ScrollingShooterGame.Game.player;
Vector2 playerPosition = new Vector2(player.Bounds.Center.X, player.Bounds.Center.Y);
if (Math.Abs(position.X - playerPosition.X) <= 1.5 && moveState != DrillMoveState.Enter)
{
attack = true;
}
else
{
//Move depending on ship status.
switch (moveState)
{
case DrillMoveState.Enter:
position.Y += elapsedTime * 50;
if (Math.Abs(position.Y) <= 1 && position.X == 0) moveState = DrillMoveState.Right;
else if (Math.Abs(position.Y) <= 1) moveState = DrillMoveState.Left;
break;
case DrillMoveState.Right:
position.X += elapsedTime * velocity.X;
if (position.X > (800-25)) moveState = DrillMoveState.Left;
break;
case DrillMoveState.Left:
position.X -= elapsedTime * velocity.X;
if (position.X < 0) moveState = DrillMoveState.Right;
break;
}
}
}
}
/// <summary>
/// Updates the Drill ship
/// </summary>
/// <param name="elapsedTime">The in-game time between the previous and current frame</param>
public override void Update(float elapsedTime)
{
//Is the ship attacking?
if (attack)
{
//The ship is attacking. Animate drill.
timer--;
if (timer == 0)
{
if (SpinState == DrillSpinState.Spin1)
{
SpinState = DrillSpinState.Spin2;
}
else
{
SpinState = DrillSpinState.Spin1;
}
timer = 5;
}
//Move down if ship attack timer is ready.
if (attackTimer == 0)
{
position.Y += elapsedTime * velocity.Y;
}
else
{
attackTimer--;
}
}
else
{
//The ship is not attacking. Check for the Player's position.
PlayerShip Player = ScrollingShooterGame.Game.Player;
Vector2 PlayerPosition = new Vector2(Player.Bounds.Center.X, Player.Bounds.Center.Y);
if (Math.Abs(position.X - PlayerPosition.X) <= 1.5 && moveState != DrillMoveState.Enter)
{
attack = true;
}
else
{
//Move depending on ship status.
switch (moveState)
{
case DrillMoveState.Enter:
position.Y += elapsedTime * 50;
if (Math.Abs(position.Y) <= 1 && position.X == 0)
{
moveState = DrillMoveState.Right;
}
else if (Math.Abs(position.Y) <= 1)
{
moveState = DrillMoveState.Left;
}
break;
case DrillMoveState.Right:
position.X += elapsedTime * velocity.X;
if (position.X > (800 - 25))
{
moveState = DrillMoveState.Left;
}
break;
case DrillMoveState.Left:
position.X -= elapsedTime * velocity.X;
if (position.X < 0)
{
moveState = DrillMoveState.Right;
}
break;
}
}
}
}
