protected void checkWrap()
{
// wrap around left/right
if (tileX == 0 && direction == Game1.LEFT)
{
x = Game1.TILE_SIZE * 20;
tileX = Map.CoordinateToTile((int)x);
}
if (tileX >= 19 && direction == Game1.RIGHT)
{
x = 0;
tileX = Map.CoordinateToTile((int)x);
}
// TODO: top right wrap tunnel lets you move on top of wall
}
public void Update()
{
switch (direction)
{
case -1: //this represents staying in place
break;
case Game1.UP:
y -= speed;
break;
case Game1.LEFT:
x -= speed;
break;
case Game1.RIGHT:
x += speed;
break;
case Game1.DOWN:
y += speed;
break;
}
//if it passes an intersection, it will snap back to the intersection, change its direction and move in that direction the amount of lost distance
int distanceFromLastTile = DistanceFromLastTile();
if (distanceFromLastTile > Game1.TILE_SIZE || direction == -1)
{
switch (direction)
{
case -1: //this represents staying in place
break;
case Game1.UP:
y = Map.TileToCoordinate(tileY - 1);
break;
case Game1.LEFT:
x = Map.TileToCoordinate(tileX - 1);
break;
case Game1.RIGHT:
x = Map.TileToCoordinate(tileX + 1);
break;
case Game1.DOWN:
y = Map.TileToCoordinate(tileY + 1);
break;
}
if (direction != -1)
{
//update tileX and tileY so we can use them at the next intersection
tileX = Map.CoordinateToTile((int)x);
tileY = Map.CoordinateToTile((int)y);
}
bool wasMoving = direction != -1; //this is only used to make it not do anything with turnDistance
direction = NextDirection();
if (wasMoving)
{
float turnDistance = distanceFromLastTile - Game1.TILE_SIZE; //this is the amount of distance left over it should travel in this frame in the new direction
switch (direction)
{
case -1: //this represents staying in place
break;
case Game1.UP:
y -= turnDistance;
break;
case Game1.LEFT:
x -= turnDistance;
break;
case Game1.RIGHT:
x += turnDistance;
break;
case Game1.DOWN:
y += turnDistance;
break;
}
}
}
checkWrap();
//update position of destRect
destRect.X = (int)x - Game1.TILE_SIZE / 2;
destRect.Y = (int)y - Game1.TILE_SIZE / 2;
}