Puts the given actor at first place in the corresponding scene list,
in order to act last and to be drawn on the bottom of other actors of the same class.
Sets the tile image of the tile with given map location.In order the image
fits exactly on the tile, its size in number of pixels should be
tileHeight x tileWidth given when constructing the tile map.
Sets the current position of the upper left vertex with respect to the
playground coordinate system (origin at upper left vertex, x-coordinate to the left,
y-coordinate downwards).
If the card is handless and visible, moves the card actor from current location to
the given location using the given number of steps per GameGrid's
simulation cycle.