private void ChangeStage()
{
if (_stage == NPCStage.Rest)
{
_stage = NPCStage.Walk;
ChangeDirection();
}
else
{
_stage = NPCStage.Rest;
}
_timeEnteredStage = SMH.GameTime;
_stageLength = (float)SMH.Random.NextDouble() * 2f + 1f;
}
/// <summary>
/// Constructs a new NPC.
/// </summary>
/// <param name="id"></param>
/// <param name="textID"></param>
/// <param name="x"></param>
/// <param name="y"></param>
public NPC(int id, int textID, int x, int y)
{
ID = id;
TextID = id;
X = x * 64 + 32;
Y = y * 64 + 32;
_facing = _walkDirection = Direction.Down;
_stage = NPCStage.Rest;
_timeEnteredStage = SMH.GameTime;
Speed = 70f;
_stageLength = (float)SMH.Random.NextDouble() + 1f;
CollisionBox = new Rect(X - 32f, Y - 32f, 64, 64);
_sprites[Direction.Down] = new Sprite(SmileyTexture.NPCs, new Rectangle(0, id * 64, 64, 64), new Vector2(32, 32));
_sprites[Direction.Left] = new Sprite(SmileyTexture.NPCs, new Rectangle(64, id * 64, 64, 64), new Vector2(32, 32));
_sprites[Direction.Right] = new Sprite(SmileyTexture.NPCs, new Rectangle(128, id * 64, 64, 64), new Vector2(32, 32));
_sprites[Direction.Up] = new Sprite(SmileyTexture.NPCs, new Rectangle(192, id * 64, 64, 64), new Vector2(32, 32));
}
/// <summary>
/// Updates the NPC.
/// </summary>
/// <param name="dt"></param>
public override void Update(float dt)
{
//Update collision box
CollisionBox = new Rect(X - 32f, Y - 32f, 64, 64);
//Exit conversation
if (!SMH.WindowManager.IsTextBoxOpen)
{
InConversation = false;
}
//If in conversation, stand still and face the player
if (InConversation)
{
if (SMH.Player.X > X + 32)
{
_facing = Direction.Right;
}
else if (SMH.Player.X < X - 32)
{
_facing = Direction.Left;
}
else if (SMH.Player.Y > Y + 32)
{
_facing = Direction.Down;
}
else if (SMH.Player.Y < Y - 32)
{
_facing = Direction.Up;
}
return;
}
else
{
_facing = _walkDirection;
}
if (_stage == NPCStage.Rest)
{
DX = DY = 0;
}
else if (_stage == NPCStage.Walk)
{
if (_walkDirection == Direction.Left)
{
DX = -Speed; DY = 0;
}
else if (_walkDirection == Direction.Right)
{
DX = Speed; DY = 0;
}
else if (_walkDirection == Direction.Up)
{
DX = 0; DY = -Speed;
}
else if (_walkDirection == Direction.Down)
{
DX = 0; DY = Speed;
}
}
//Switch stage when the current one is finished
if (SMH.GameTimePassed(_timeEnteredStage, _stageLength))
{
ChangeStage();
}
//Move
_futureCollisionBox = new Rect(X + DX * dt * 3f - 32f, Y + DY * dt * 3f - 32f, 64, 64);
_futureCollisionBox2 = new Rect(X + DX * dt * 3f - 32f, Y + DY * dt * 3f - 32f, 64, 64);
if (SMH.Player.CollisionCircle.Intersects(_futureCollisionBox2))
{
//If colliding with the player, enter rest mode
_stage = NPCStage.Rest;
}
else if (!SMH.Environment.TestCollision(_futureCollisionBox, CanPass) &&
!SMH.NPCManager.TestCollision(this))
{
X += DX * dt;
Y += DY * dt;
}
else
{
ChangeDirection();
}
}