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HOW TO CREATE YOUR OWN GAME IN ROBLOX ON IPAD HOW TO
HOW TO CREATE YOUR OWN GAME IN ROBLOX ON IPAD MAC OS
HOW TO CREATE YOUR OWN GAME IN ROBLOX ON IPAD CODE
HOW TO CREATE YOUR OWN GAME IN ROBLOX ON IPAD SERIES

While each platform used to emulate a pattern of the platform before it, which was starting to be less than ideal, we now give each platform control as to how to interpret input.

HOW TO CREATE YOUR OWN GAME IN ROBLOX ON IPAD MAC OS

Essentially, we added a new “platform-agnostic input layer” between our engine and the platform on which ROBLOX is running (iOS, Windows, Mac OS X).

HOW TO CREATE YOUR OWN GAME IN ROBLOX ON IPAD CODE

Implementing multitouch support required that Ben write delicate code – he had to add recognition for iOS input while maintaining existing user input code. Applications often recognize certain combinations of touches as gestures and respond to them in ways that are intuitive to users, such as zooming in on content in response to a pinching gesture. iOS tracks fingers touching the screen throughout a multitouch sequence and records the characteristics of each of them, including the location of the finger on the screen and the time the touch occurred. This sequence begins when the first finger touches down on the screen and ends when the last finger is lifted from the screen. IOS recognizes one or more fingers touching the screen as part of a multitouch sequence. In order to recognize the more complex user input of iOS devices, where multitouch creates the equivalent of simultaneous mouse clicks, we had to rework existing code.Īccording to Apple’s developer library, here’s how multitouch works: ROBLOX launched before touch screens went mainstream, so our code was designed to handle mouse and keyboard user input. This could cause inadvertent zooming and disorient players. Without that requirement, we might end up interpreting two separate touches – for instance, interacting with a UI element and panning the camera – as the start of a zoom. There is a unique aspect to the pinch-zoom on ROBLOX: both of the player’s fingers must touch the screen within milliseconds. For ROBLOX gameplay, the fast and intuitive pinch method won. Some alternatives are a zoom slider that players could show and hide, and three-finger, up-and-down swipes. It has become the go-to method of zooming in and out on iOS devices, but it does limit our ability to, for example, simultaneously use two separated fingers to rotate an object in a building game. The pinch-zoom was one of the toughest control challenges.

Pinch to zoom in/out: players can zoom in and out by placing two fingers on the screen (not on a UI element) and using the pinch gesture, which is common throughout iOS apps.

Touch and drag in any direction for camera panning: once your finger stays on the screen (not on a GUI element) for more than 0.16 seconds and you drag it more than 10 pixels, it registers as camera movement.

The tap can last longer on graphic user interface (GUI) elements.

Tap replaces left-mouse click: as long as you release your finger within 0.16 seconds, it will register as a tap in the game engine.

Virtual joystick for character movement: this activates when you touch within an area that is 33% of each screen dimension in the lower left-hand corner, then moves with your finger until you end the touch.

Today, character movement involves just a few buttons. In the end, we agreed on a goal of using as few buttons as possible. We experimented with virtual W, A, S and D keys for character movement and buttons for various game actions. If you look at our original video of ROBLOX running on iPad, you can see the controls’ primitive beginnings: touch the top of the screen to move your character forward, touch the right side to move your character right, etc. That was the kind of approach Ben took to designing a mobile control scheme for ROBLOX. These are both examples of controls that work with touch screens, rather than around them. For example, players can execute a 180-degree turn quickly – that is, without having to flick across the screen more than once – and camera movement is free-form, rather than tied to a virtual joystick that mimics an analog stick. stands out to Ben the game is unabashedly reminiscent of the Halo series, but it isn’t just a console game ported to iOS – it’s a mobile game, in large part due to great controls. He’s played a lot of iOS games and cites Gameloft’s titles as examples of consistently good, mobile-optimized controls. ROBLOX Game Engineer Ben Tkacheff is an expert when it comes to iOS controls. In the final installments of the series, we’ll stray from the path and look at the development of interactive components, starting with control design. It has seen us go into the trenches with several ROBLOX developers to learn about and document their roles in building a stable, smooth mobile gaming experience with the unique challenge of user-generated content as the centerpiece.

HOW TO CREATE YOUR OWN GAME IN ROBLOX ON IPAD SERIES

Thus far, our Engineering ROBLOX for the iPad series has focused on iPad development through a performance-optimization lens.