/// <summary>
/// Decides what to do next (move or interact) and tries to execute it.
/// </summary>
/// <param name="map"></param>
public void Advance(Map map)
{
movementAI.TryDoingSomething(this, map);
Dir oldMoving = moving;
if (moving == Dir.None) {
moving = nextMove;
if (moving != Dir.None) facing = moving;
}
switch (moving) {
case Dir.Left:
if (corrX > 0) {
corrX -= speed;
}
else if (corrX <= 0) {
if (oldMoving == moving && OnStep(map)) {
corrX = 0;
moving = Dir.None;
graphic.SetState("still");
}
else {
if (nextMove != Dir.Left) {
corrX = 0;
moving = Dir.None;
}
else {
corrX += size;
map.Move(this, x, y, layer, x - 1, y, layer);
}
}
}
break;
case Dir.Right:
if (corrX < 0) {
corrX += speed;
}
else if (corrX >= 0) {
if (oldMoving == moving && OnStep(map)) {
corrX = 0;
moving = Dir.None;
graphic.SetState("still");
}
else {
if (nextMove != Dir.Right) {
corrX = 0;
moving = Dir.None;
}
else {
corrX -= size;
map.Move(this, x, y, layer, x + 1, y, layer);
}
}
}
break;
case Dir.Up:
if (corrY > 0) {
corrY -= speed;
}
else if (corrY <= 0) {
if (oldMoving == moving && OnStep(map)) {
corrY = 0;
moving = Dir.None;
graphic.SetState("still");
}
else {
if (nextMove != Dir.Up) {
corrX = 0;
moving = Dir.None;
}
else {
corrY += size;
map.Move(this, x, y, layer, x, y - 1, layer);
}
}
}
break;
case Dir.Down:
if (corrY < 0) {
corrY += speed;
}
else if (corrY >= 0) {
if (oldMoving == moving && OnStep(map)) {
corrY = 0;
moving = Dir.None;
graphic.SetState("still");
}
else {
if (nextMove != Dir.Down) {
corrX = 0;
moving = Dir.None;
}
else {
corrY -= size;
map.Move(this, x, y, layer, x, y + 1, layer);
}
}
}
break;
}
if (moving == Dir.None) {
moving = nextMove;
if (moving != Dir.None) facing = moving;
}
if (moving != oldMoving) {
if (moving == Dir.None) {
graphic.SetState("still");
}
else {
graphic.SetState("move");
graphic.SetDirection(moving);
}
}
nextMove = Dir.None;
graphic.Advance();
}
