Refactored TTexture to allow encoding sprite(s) at an arbitrary location within
a (possibly shared) physical texture.
The original variant only allowed encoding a sprite at the bottomleft of a
larger physical texture to use NPOT sprites on POT only supporting systems.
sky = 0, 0, 51
border = 255, 200, 90
water-top = $FF, $DF, $E1
water-bottom = $FF, $DF, $E1
water-opacity = $80
music = snow.ogg
clouds = 9
object = plant1, 3, 83, 215, 92, 35, 1, 0, 0, 250, 190
object = plant2, 3, 118, 115, 41, 20, 1, 0, 0, 159, 110
object = plant3, 3, 0, 115, 70, 40, 1, 8, 0, 60, 100
flakes = 20, 100, 0, 30, 250