/// <summary>
/// What do when a collision ends
/// </summary>
/// <param name="sender">Who WAS I colliding with?</param>
/// <param name="e">Ignore this</param>
protected override void HandleCollisionExit(object sender, EventArgs e)
{
//Cast to a Collider
Collider other = (Collider)sender;
switch (state)
{
case PlayerState.OnLand:
//If you walk off a platform, you should fall if you're no longer colliding below with anything
if (other.Host is Platform)
{
if (!CollBelow.CollidingWith <Platform>() && !Coll.CollidingWith <Water>())
{
Acceleration = airAcceleration;
state = PlayerState.InAir;
}
}
break;
case PlayerState.InAir:
break;
case PlayerState.InWater:
break;
case PlayerState.IsDead:
break;
default:
break;
}
}
/// <summary>
/// Check for a collision with water when we're not swimming
/// </summary>
/// <param name="other">Collider to check with</param>
private void CheckForWaterWhenNotSwimming()
{
if (Coll.CollidingWith <Water>() && !CollBelow.CollidingWith <Platform>())
{
state = PlayerState.InWater;
Acceleration = .05f * airAcceleration;
Velocity.Y = MathHelper.Clamp(Velocity.Y, -MoveSpeed, MoveSpeed);
//Turn blue to match water
DrawColor = Color.Blue;
//Loop ambient swim noise
GameManager.LoopSFX("WaterLoop");
}
}
/// <summary>
/// Swim Update
/// </summary>
public void Swim(int speed)
{
int horz = 0;
int vert = 0;
if (InputManager.GetButton("Right"))
{
horz = 1;
SpriteFX = SpriteEffects.FlipHorizontally;
direction = Direction.Right;
}
if (InputManager.GetButton("Left"))
{
horz = -1;
SpriteFX = SpriteEffects.None;
direction = Direction.Left;
}
if (InputManager.GetButton("Up"))
{
vert = 1;
}
if (InputManager.GetButton("Down"))
{
vert = -1;
}
if (horz != 0 || vert != 0)
{
Velocity = new Vector2(horz * speed, -vert * speed);
}
//Check for collisions and stop appropriate component of velocity while swimming
if (CollLeft.CollidingWith <Platform>() && Velocity.X < 0)
{
Velocity.X = 0;
}
if (CollRight.CollidingWith <Platform>() && Velocity.X > 0)
{
Velocity.X = 0;
}
if (CollAbove.CollidingWith <Platform>() && Velocity.Y < 0)
{
Velocity.Y = 0;
}
if (CollBelow.CollidingWith <Platform>() && Velocity.Y > 0)
{
Velocity.Y = 0;
}
//Exit swimming state when not colliding with any water objects
//Done here rather than in HandleCollision events because there
//will be a lot of water tiles near each other.
if (!Coll.CollidingWith <Water>())
{
state = PlayerState.InAir;
Acceleration = airAcceleration;
if (Velocity.Y <= 0)
{
Velocity.Y = .5f * jumpVelocity.Y;
}
//Turn back to normal color
DrawColor = Color.White;
//Stop ambient swim noise
GameManager.StopSFX("WaterLoop");
}
}
public override void Update(GameTime gameTime)
{
this.gameTime = gameTime;
//add update logic here
GameObject player = GameManager.Get("Current");
int distX = this.Location.X - player.Location.X;
int distY = this.Location.X - player.Location.X;
switch (state)
{
case EnemyState.Roaming:
//Check to see if player is within range of detection
if (Math.Abs(distX) <= MAX_DETECTION || Math.Abs(distY) <= MAX_DETECTION)
{
state = EnemyState.PlayerDetected;
}
//Call wander method to move enemy
Wander(gameTime);
break;
case EnemyState.PlayerDetected:
//Call Chase player method
ChasePlayer();
//Checks if player is still withing detection range
if (Math.Abs(distX) > MAX_DETECTION || Math.Abs(distY) > MAX_DETECTION)
{
state = EnemyState.Returning;
}
break;
case EnemyState.Returning:
//Call ReturnHome Method
ReturnHome();
//find distance between enemy and home
int disX = Location.X - (int)HomePoint.X;
int disY = Location.Y - (int)HomePoint.Y;
//If in range set to roaming
if (Math.Abs(disX) <= 5 || Math.Abs(disY) <= 5)
{
state = EnemyState.Roaming;
}
break;
case EnemyState.Waiting:
collActive = false; //disable collisions
delayTimer += gameTime.ElapsedGameTime.TotalMilliseconds;
if (delayTimer >= 1500)
{
state = EnemyState.PlayerDetected;
delayTimer = 0;
collActive = true; //re-enable collisions
}
break;
default:
break;
}
//Don't go leavin dat water do
if (!Coll.CollidingWith <Water>())
{
state = EnemyState.Returning;
}
//Death logic
if (Health <= 0)
{
IsAlive = false;
}
base.Update(gameTime);
}
