/// <summary>
/// From absolute position in pixels to side of tile = 1
/// </summary>
/// <param name="tmxObject"></param>
/// <param name="tileWidth"></param>
/// <param name="tileHeight"></param>
/// <param name="worldHeight"></param>
private static void NormalizeObjectPosition(TmxObject tmxObject, int tileWidth, int tileHeight, int worldHeight)
{
tmxObject.X /= tileWidth;
tmxObject.Y /= tileHeight;
tmxObject.Y = worldHeight - tmxObject.Y;
tmxObject.Width /= tileWidth;
tmxObject.Height /= tileHeight;
tmxObject.Rotation = -MathHelper.ToRadians(tmxObject.Rotation);
}
/// <summary>
/// Transforms from rotation around left lower corner to rotation around center
/// </summary>
/// <param name="tmxObject"></param>
private static void TransformObjectPosition(TmxObject tmxObject)
{
Vector2 rotationCenter = new Vector2(tmxObject.X, tmxObject.Y);
Vector2 size = new Vector2(tmxObject.Width / 2, tmxObject.Height / 2);
Vector2 newPosition = RotateAroundCenter(rotationCenter + size, rotationCenter, tmxObject.Rotation);
tmxObject.X = newPosition.X;
tmxObject.Y = newPosition.Y;
}
private static Avatar LoadAgent(TmxObject avatar, List<Tileset> tilesets)
{
var initialPosition = new Vector2(avatar.X, avatar.Y);
var size = new Vector2(avatar.Width, avatar.Height);
float rotation = avatar.Rotation;
int originalGid = avatar.Gid;
Tuple<string, int> nameNewGid = TilesetNameFromGid(tilesets, originalGid);
string tilesetName = nameNewGid.Item1;
int newGid = nameNewGid.Item2;
var gameAvatar = new Avatar(tilesetName, newGid, avatar.Name, avatar.Id, initialPosition, size, rotation);
// this is magic
if (avatar.Properties != null)
{
SetGameObjectProperties(avatar.Properties.PropertiesList, gameAvatar);
}
return gameAvatar;
}
private static Character LoadCharacter(TmxObject tmxObject, List<Tileset> tilesets)
{
var initialPosition = new Vector2(tmxObject.X, tmxObject.Y);
var size = new Vector2(tmxObject.Width, tmxObject.Height);
float rotation = tmxObject.Rotation;
int originalGid = tmxObject.Gid;
Tuple<string, int> nameNewGid = TilesetNameFromGid(tilesets, originalGid);
string tilesetName = nameNewGid.Item1;
int newGid = nameNewGid.Item2;
Type objectType = Type.GetType("World.GameActors.GameObjects." + tmxObject.Type);
if (objectType == null)
{
throw new ArgumentException("MapLoader cannot find \"" + tmxObject.Type + "\" class.");
}
var gameObject = (Character)Activator.CreateInstance(
objectType,
tilesetName,
newGid,
tmxObject.Name,
initialPosition,
size,
rotation
);
// this is magic
if (tmxObject.Properties != null)
{
SetGameObjectProperties(tmxObject.Properties.PropertiesList, gameObject);
}
return gameObject;
}
private static IEnumerable<Vector2> PolylineTransform(Map map, TmxObject polyline)
{
float tilewidth = map.Tilewidth;
float tileheight = map.Tileheight;
float polX = polyline.X;
float polY = polyline.Y;
foreach (Vector2 point in polyline.Polyline.GetPoints())
{
yield return new Vector2(polX + point.X / tilewidth, polY - point.Y / tileheight);
}
}