game

type DrawOptions struct {
	FlipX             bool
	Transparency      float32
	CenterRotationDeg float32
}

type Game interface {
	Frame([]InputEvent)
	SetScreenSize(width, height int)
}

type Image interface {
	DrawAt(x, y int)
	DrawAtEx(x, y int, options DrawOptions)
	DrawRectAt(x, y int, source Rectangle)
	Size() (width, height int)
}

type Info struct {
	CavemanHitBox Rectangle
	RockHitBox    Rectangle
	LevelCount    int
}

type InputEvent struct {
	Down bool
	Key  Key
}

type Key int

type Rectangle struct {
	X, Y, W, H int
}

type Resources interface {
	LoadImage(id string) Image
	LoadSound(id string) Sound
	LoadFile(id string) []byte
}

type Sound interface {
	Play()
	PlayLooping()
}