About Halve

Halve is a small daily game about one question: where exactly is the middle?

Every day there are new shapes to cut across five modes: Shapes, Things, Landmarks, Animals and 3D Objects. You get one straight line and one try for each. It takes a minute or two, and the same puzzles go out to everyone, so you can compare scores with friends.

It sounds easy. It isn’t. People are surprisingly bad at judging area, and worse at judging volume. A giraffe’s neck, a lighthouse’s tower or the handle of a mug all pull your eye away from where the area really is. Halve shows you the perfect cut after every attempt, so you get better at seeing it.

How the measuring works

For flat shapes, Halve measures the exact area on each side of your line. For 3D objects, a cut is a plane that runs straight into the screen. Halve measures, for every pixel, how much solid material the line of sight passes through, and adds up those thicknesses on each side of the line. That gives the true volume of each piece, which is why thick parts of a 3D object count for more than they look.

Playing with others

Besides the daily puzzles you can play head to head, either on the same 10 shapes or in Draw & cut, where you draw shapes for each other. Online games connect the two players’ browsers directly, and each browser measures both cuts on its own copy of the shapes, so neither player has to trust the other’s score.

Credits

Animal silhouettes are public-domain images from PhyloPic and its contributors. Many objects, buildings and common animals are icons from Material Design Icons by Pictogrammers (Apache 2.0), Font Awesome Free by Fonticons (CC BY 4.0), Fluent Emoji by Microsoft (MIT) and game-icons.net by its contributors, including Lorc, Delapouite and Skoll (CC BY 3.0). Other silhouettes are adapted from MingCute. 3D objects are modeled for this game.

Questions or ideas? Get in touch.