public override void OnActionEnter(GameEngine gameEngine)
{
}
public void Update(GameEngine theGame)
{
if (X < 0 || Y < 0)
{
return;
}
if (Dirty)
{
if (LastX > -1 && LastY > -1)
{
theGame.Tiles[LastY, LastX].Draw();
}
if (theGame.Tiles[Y, X].FOW < 1)
{
Console.SetCursorPosition(X, Y);
Console.Write(Symbol);
}
Dirty = false;
}
if (_actionStart.Ticks == 0)
{
_actionStart = DateTime.Now;
}
// wait an elapsed amount of time based on movement speed
if ((DateTime.Now - _actionStart).Seconds > Speed)
{
//get a delta between player and monster
var dx = theGame.ThePlayer.X - X;
var dy = theGame.ThePlayer.Y - Y;
List <DirectionMod> availMoves = new List <DirectionMod>();
foreach (var dir in PossibleDirections)
{
if (theGame.Tiles[Y + dir.y, X + dir.x].IsWalkable)
{
availMoves.Add(dir);
}
}
//if we have an option to move somwhere lets do it
if (availMoves.Count > 0)
{
Random randgen = new Random();
//if the monster is far away then just randomize movement
if (Math.Abs(dx) + Math.Abs(dy) > 6)
{
//get a random move
DirectionMod move = availMoves[randgen.Next(availMoves.Count)];
//move to that location
MoveTo(X + move.x, Y + move.y);
theGame.MessageBrd.Add($"{Name} is on the move.");
}
else
{
//the player is close, lets move towards it
theGame.MessageBrd.Add($"{Name} picked up your scent...run!!");
if (dx < 0)
{
// the monster is left of the player, so move right
foreach (var m in availMoves)
{
if (m.x < 0)
{
MoveTo(X + m.x, Y + m.y);
}
}
}
else if (dx > 0)
{
// the monster is right of the player, so move left
foreach (var m in availMoves)
{
if (m.x > 0)
{
MoveTo(X + m.x, Y + m.y);
}
}
}
else if (dy < 0)
{
// the monster is down of the player, so move up
foreach (var m in availMoves)
{
if (m.y < 0)
{
MoveTo(X + m.x, Y + m.y);
}
}
}
else if (dy > 0)
{
// the monster is above of the player, so move down
foreach (var m in availMoves)
{
if (m.y > 0)
{
MoveTo(X + m.x, Y + m.y);
}
}
}
}
theGame.Tiles[LastY, LastX].IsWalkable = true; //because the monster is leaving this location
if (theGame.Tiles[LastY, LastX].FOW < 1)
{
theGame.Tiles[LastY, LastX].Dirty = true;
}
theGame.Tiles[Y, X].IsWalkable = false; //because the monster is now in a new location
if (theGame.Tiles[Y, X].FOW < 1)
{
theGame.Tiles[Y, X].Dirty = true;
}
Dirty = true;
}
_actionStart = DateTime.Now; //reset timer
}
}
