doodle/src/level/page_type.go

38 lines
1.4 KiB
Go

package level
// PageType configures the bounds and wallpaper behavior of a Level.
type PageType int
// PageType values.
const (
// Unbounded means the map can grow freely in any direction.
// - Only the repeat texture is used for the wallpaper.
Unbounded PageType = iota
// NoNegativeSpace means the map is bounded at the top left edges.
// - Can't scroll or visit any pixels in negative X,Y coordinates.
// - Wallpaper shows the Corner at 0,0
// - Wallpaper repeats the Top along the Y=0 plane
// - Wallpaper repeats the Left along the X=0 plane
// - The repeat texture fills the rest of the level.
NoNegativeSpace
// Bounded is the same as NoNegativeSpace but the level is imposing a
// maximum cap on the width and height of the level.
// - Can't scroll below X,Y origin at 0,0
// - Can't scroll past the bounded width and height of the level
Bounded
// Bordered is like Bounded except the corner textures are wrapped
// around the other edges of the level too.
// - The wallpaper hoz mirrors Left along the X=Width plane
// - The wallpaper vert mirrors Top along the Y=Width plane
// - The wallpaper 180 rotates the Corner for opposite corners
Bordered // TODO: to be implemented
// FullPage treats the wallpaper image as a literal full scan of a page.
// - The level boundaries are fixed to the wallpaper image's dimensions.
// - Used to e.g. scan in real letterhead paper and draw a map on it.
FullPage // TODO: to be implemented
)