private Sprite SetSprite(Point point, int offsetIndex)
{
if (_terrain == null) return null;
var tileset = TilesetManager.Instance.GetTileset(_terrain.Tileset);
if (tileset == null) return null;
if (point == null) return null;
var x = destX * tileset.TileWidth;
var y = destY * tileset.TileHeight;
var srcX = (_terrain.X * tileset.TileWidth) + point.X;
var srcY = (_terrain.Y * tileset.TileHeight) + point.Y;
var xoffset = tileset.TileWidth / 2;
var yoffset = tileset.TileHeight / 2;
switch (offsetIndex)
{
// NW
case 0:
break;
// NE
case 1:
x += xoffset;
break;
// SW
case 2:
y += yoffset;
break;
// SE
case 3:
x += xoffset;
y += yoffset;
break;
}
var sprite = new Sprite
{
Texture = ResourceManager.Instance.LoadTexture(tileset.Image),
Position = new Vector2f(x, y),
TextureRect = new IntRect(srcX, srcY, tileset.TileWidth / 2, tileset.TileHeight / 2)
};
return sprite;
}
/// <summary>
/// Checks if a point is in the <see cref="Points"/> list.
/// </summary>
/// <param name="point">Point to check for.</param>
/// <returns>Returns true if the point is found, false if not.</returns>
public bool ContainsPoint(Point point)
{
foreach (Point tmp in _points)
{
if (tmp.X == point.X && tmp.Y == point.Y)
return true;
}
return false;
}
/// <summary>
/// Toggles the inclusion of a specific point.
/// </summary>
/// <param name="point">Point to toggle.</param>
public void TogglePoint(Point point)
{
if (point.X > (_objectWidth / _tileWidth) - 1) return;
if (point.Y > (_objectHeight / _tileHeight) - 1) return;
if (!ContainsPoint(point))
{
_points.Add(point);
CalculateOffset();
return;
}
foreach (var tmp in _points.ToList())
{
if (tmp.X == point.X && tmp.Y == point.Y)
_points.Remove(tmp);
}
CalculateOffset();
}
/// <summary>
/// Calculates which points appear between the <see cref="Start"/> and <see cref="End"/> points.
/// </summary>
public void CalculatePoints()
{
_points.Clear();
int x1; int x2; int y1; int y2;
if (Start.X < End.X)
{
x1 = Start.X;
x2 = End.X;
}
else
{
x1 = End.X;
x2 = Start.X;
}
if (Start.Y < End.Y)
{
y1 = Start.Y;
y2 = End.Y;
}
else
{
y1 = End.Y;
y2 = Start.Y;
}
if (x1 < 0) x1 = 0;
if (y1 < 0) y1 = 0;
if (x2 < 0) x2 = 0;
if (y2 < 0) y2 = 0;
if (x1 > (_objectWidth / _tileWidth) - 1) x1 = (_objectWidth / _tileWidth) - 1;
if (y1 > (_objectHeight / _tileHeight) - 1) y1 = (_objectHeight / _tileHeight) - 1;
if (x2 > (_objectWidth / _tileWidth) - 1) x2 = (_objectWidth / _tileWidth) - 1;
if (y2 > (_objectHeight / _tileHeight) - 1) y2 = (_objectHeight / _tileHeight) - 1;
for (int x = x1; x <= x2; x++)
{
for (int y = y1; y <= y2; y++)
{
_points.Add(new Point(x, y));
}
}
_offset = new Point(x1, y1);
}