Chapter 12
The State-Transition Model of Input
Keywords
Abstraction, input devices imply user interfaces, the need for a tracking state, designing UI without a tracking state
So Midas, king of Lydia, swelled at first with pride when he found he could transform everything he touched to gold; but when he beheld his food grow rigid and his drink harden into golden ice then he understood that this gift was a bane and in his loathing for gold, cursed his prayer.
—Claudian, In Rufinum
Description
Input devices come in a staggering array of shapes, sizes, degrees of freedom, and capabilities. But all can be modeled using a very simple tool: the state model of input devices. By understanding this way of thinking, you will immediately transition from ...
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