/// <summary>
/// Creates a new instance of a LaserDrone
/// </summary>
/// <param name="content">A ContentManager to load resources with</param>
/// <param name="position">The position of the LaserDrone in the game world</param>
public LaserDrone(uint id, ContentManager content, Vector2 position) : base(id)
{
this.position = position;
spritesheet = content.Load <Texture2D>("Spritesheets/newsh8.shp.000000");
spriteBounds[(int)WeaponChargeLevel.Full].X = 1;
spriteBounds[(int)WeaponChargeLevel.Full].Y = 202;
spriteBounds[(int)WeaponChargeLevel.Full].Width = 23;
spriteBounds[(int)WeaponChargeLevel.Full].Height = 19;
spriteBounds[(int)WeaponChargeLevel.Medium].X = 24;
spriteBounds[(int)WeaponChargeLevel.Medium].Y = 202;
spriteBounds[(int)WeaponChargeLevel.Medium].Width = 23;
spriteBounds[(int)WeaponChargeLevel.Medium].Height = 19;
spriteBounds[(int)WeaponChargeLevel.Low].X = 48;
spriteBounds[(int)WeaponChargeLevel.Low].Y = 202;
spriteBounds[(int)WeaponChargeLevel.Low].Width = 23;
spriteBounds[(int)WeaponChargeLevel.Low].Height = 19;
weaponChargeLevel = WeaponChargeLevel.Full;
}
/// <summary>
/// Creates a new instance of a LaserDrone
/// </summary>
/// <param name="content">A ContentManager to load resources with</param>
/// <param name="position">The position of the LaserDrone in the game world</param>
public LaserDrone(uint id, ContentManager content, Vector2 position)
: base(id)
{
this.position = position;
spritesheet = content.Load<Texture2D>("Spritesheets/newsh8.shp.000000");
spriteBounds[(int)WeaponChargeLevel.Full].X = 1;
spriteBounds[(int)WeaponChargeLevel.Full].Y = 202;
spriteBounds[(int)WeaponChargeLevel.Full].Width = 23;
spriteBounds[(int)WeaponChargeLevel.Full].Height = 19;
spriteBounds[(int)WeaponChargeLevel.Medium].X = 24;
spriteBounds[(int)WeaponChargeLevel.Medium].Y = 202;
spriteBounds[(int)WeaponChargeLevel.Medium].Width = 23;
spriteBounds[(int)WeaponChargeLevel.Medium].Height = 19;
spriteBounds[(int)WeaponChargeLevel.Low].X = 48;
spriteBounds[(int)WeaponChargeLevel.Low].Y = 202;
spriteBounds[(int)WeaponChargeLevel.Low].Width = 23;
spriteBounds[(int)WeaponChargeLevel.Low].Height = 19;
weaponChargeLevel = WeaponChargeLevel.Full;
}
/// <summary>
/// Updates the LaserDrone
/// </summary>
/// <param name="elapsedTime">The in-game time between the previous and current frame</param>
public override void Update(float elapsedTime)
{
// Sense the Player's position
PlayerShip Player = ScrollingShooterGame.Game.Player;
Vector2 PlayerPosition = new Vector2(Player.Bounds.Center.X, Player.Bounds.Center.Y);
switch (aiState)
{
case AIState.Chasing:
getInPosition(PlayerPosition, elapsedTime);
if (Math.Abs(PlayerPosition.X - Bounds.Center.X) < 40 && Bounds.Center.Y < PlayerPosition.Y)
{
//transition to firing state
fireTimeRemaining = FIRE_TIME;
aiState = AIState.Firing;
currentSpeed = MAX_MOVE_SPEED * 0.66f;
if (droneLaser == null)
{
droneLaser = (DroneLaser)ScrollingShooterGame.GameObjectManager.CreateProjectile(ProjectileType.DroneLaser, Vector2.Zero);
}
droneLaser.isOn = true;
droneLaser.laserPower = WeaponChargeLevel.Full;
droneLaser.updatePosition(position.X + 23, position.Y + 30);
}
break;
case AIState.Firing:
fireTimeRemaining -= elapsedTime;
//change to medium charge sprite when halfway depleted
if (weaponChargeLevel == WeaponChargeLevel.Full && fireTimeRemaining / FIRE_TIME < 0.66)
{
weaponChargeLevel = droneLaser.laserPower = WeaponChargeLevel.Medium;
}
else if (weaponChargeLevel == WeaponChargeLevel.Medium && fireTimeRemaining / FIRE_TIME < 0.33)
{
weaponChargeLevel = droneLaser.laserPower = WeaponChargeLevel.Low;
}
if (fireTimeRemaining <= 0)
{
//transition to recharging state
aiState = AIState.Recharging;
currentSpeed = MAX_MOVE_SPEED * 0.33f;
rechargeTimeRemaining = RECHARGE_TIME;
weaponChargeLevel = WeaponChargeLevel.Low;
droneLaser.isOn = false;
}
getInPosition(PlayerPosition, elapsedTime);
droneLaser.updatePosition(position.X + 23, position.Y + 30);
break;
case AIState.Recharging:
rechargeTimeRemaining -= elapsedTime;
if (weaponChargeLevel == WeaponChargeLevel.Low && rechargeTimeRemaining / RECHARGE_TIME < 0.66)
{
weaponChargeLevel = WeaponChargeLevel.Medium;
}
if (weaponChargeLevel == WeaponChargeLevel.Medium && rechargeTimeRemaining / RECHARGE_TIME < 0.33)
{
weaponChargeLevel = WeaponChargeLevel.Full;
}
if (rechargeTimeRemaining <= 0)
{
aiState = AIState.Chasing;
currentSpeed = MAX_MOVE_SPEED;
weaponChargeLevel = WeaponChargeLevel.Full;
}
moveAwayFrom(PlayerPosition, elapsedTime);
break;
}
}
/// <summary>
/// Updates the LaserDrone
/// </summary>
/// <param name="elapsedTime">The in-game time between the previous and current frame</param>
public override void Update(float elapsedTime)
{
// Sense the player's position
PlayerShip player = ScrollingShooterGame.Game.Player;
Vector2 playerPosition = new Vector2(player.Bounds.Center.X, player.Bounds.Center.Y);
switch (aiState)
{
case AIState.Chasing:
getInPosition(playerPosition, elapsedTime);
if (Math.Abs(playerPosition.X - Bounds.Center.X) < 40 && Bounds.Center.Y < playerPosition.Y)
{
//transition to firing state
fireTimeRemaining = FIRE_TIME;
aiState = AIState.Firing;
currentSpeed = MAX_MOVE_SPEED * 0.66f;
if(droneLaser == null)
droneLaser = (DroneLaser) ScrollingShooterGame.GameObjectManager.CreateProjectile(ProjectileType.DroneLaser, Vector2.Zero);
droneLaser.isOn = true;
droneLaser.laserPower = WeaponChargeLevel.Full;
droneLaser.updatePosition(position.X + 23, position.Y + 30);
}
break;
case AIState.Firing:
fireTimeRemaining -= elapsedTime;
//change to medium charge sprite when halfway depleted
if (weaponChargeLevel == WeaponChargeLevel.Full && fireTimeRemaining / FIRE_TIME < 0.66)
weaponChargeLevel = droneLaser.laserPower = WeaponChargeLevel.Medium;
else if (weaponChargeLevel == WeaponChargeLevel.Medium && fireTimeRemaining / FIRE_TIME < 0.33)
weaponChargeLevel = droneLaser.laserPower = WeaponChargeLevel.Low;
if (fireTimeRemaining <= 0)
{
//transition to recharging state
aiState = AIState.Recharging;
currentSpeed = MAX_MOVE_SPEED * 0.33f;
rechargeTimeRemaining = RECHARGE_TIME;
weaponChargeLevel = WeaponChargeLevel.Low;
droneLaser.isOn = false;
}
getInPosition(playerPosition, elapsedTime);
droneLaser.updatePosition(position.X + 23, position.Y + 30);
break;
case AIState.Recharging:
rechargeTimeRemaining -= elapsedTime;
if (weaponChargeLevel == WeaponChargeLevel.Low && rechargeTimeRemaining / RECHARGE_TIME < 0.66)
weaponChargeLevel = WeaponChargeLevel.Medium;
if (weaponChargeLevel == WeaponChargeLevel.Medium && rechargeTimeRemaining / RECHARGE_TIME < 0.33)
weaponChargeLevel = WeaponChargeLevel.Full;
if (rechargeTimeRemaining <= 0)
{
aiState = AIState.Chasing;
currentSpeed = MAX_MOVE_SPEED;
weaponChargeLevel = WeaponChargeLevel.Full;
}
moveAwayFrom(playerPosition, elapsedTime);
break;
}
}