BasicGame square_size=30
    SpriteSet
        snow   > Immovable color=WHITE img=oryx/backGrey
        mud    > Immovable color=LIGHTGREEN img=oryx/floorTileOrange
        grass  > Immovable color=GREEN img=oryx/floorTileGreen
        sword  > Flicker invisible=True
        moving >
            avatar > ShootAvatar stype=sword img=oryx/yeti1
            dog    > RandomNPC cooldown=5 img=oryx/wolf1 cons=15
        wall > Immovable img=oryx/dirtwall autotiling=True
    LevelMapping
        . > snow
        1 > dog mud
        A > avatar grass
        w > wall
    InteractionSet
        avatar dog > killSprite
        avatar mud  > stepBack
        moving wall grass > stepBack
        snow dog    > transformTo stype=mud
        snow avatar > transformTo stype=grass scoreChange=1

    TerminationSet
        MultiSpriteCounter stype1=sword    limit=1 win=True
        SpriteCounter stype=avatar    limit=0 win=False
        Timeout limit=1000 win=False
