Game的基本元素.[小糊涂的灵感]

GameManager Handles keyboard input, updates sprites, provides collision detection,
and plays sound and music.

TileMapRenderer Draws the tile map, parallax background, and sprites.

ResourceManager Loads images, creates animations and sprites, and loads levels.

 

On Windows machines, the granularity of the system timer isn't accurate enough for
smooth scrolling.  "Optimization Techniques."

Using sprite bounds for collision detection isn't accurate enough. Smaller collision
bounds could be used instead.

Also, you could use better collision handling for times when the sprite travels across
large distances between frames.