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The array of values for all axes of the gamepad. All axis values are linearly normalized to the range [-1.0 .. 1.0]. If the gamepad is perpendicular to the ground with the directional stick pointing up, -1.0 normally corresponds to "forward" or "left", and 1.0 normally corresponds to "backward" or "right". Axes that are drawn from a 2D input device normally appear next to each other in the axes array, X then Y. Axes should appear in decreasing order of importance in the array, such that element 0 and 1 typically represent the X and Y axis of a directional stick.

The array of button states for all buttons of the gamepad. The buttons should appear in decreasing importance such that the primary button, secondary button, tertiary button, and so on appear as elements 0, 1, 2, ... in the buttons array.

Indicates whether the physical gamepad represented by this object is still connected to the local machine. When a gamepad becomes unavailable, whether by being physically disconnected, powered off or otherwise unusable, this property is set to false.

The identification string for the gamepad. This string identifies the brand or style of connected gamepad device. Typically, this will include the USB vendor and a product ID.

The index of the gamepad in array in the Input object (see game.input.gamepads).

The mapping in use for this gamepad. When the browser has knowledge of the physical layout of the device, it presents the buttons and axes in a well-defined configuration, which is what the mapping property represents. For now, the only supported mapping is called 'standard' and refers to typical console gamepads. A diagram illustrating it can be found here https://w3c.github.io/gamepad/#dfn-standard-gamepad-layout. The 'standard' mapping should apply in most browsers/OS for common gamepads such as the Xbox 360, Xbox One, Playstation 4 DualShock 4, etc... When the browser doesn't have specific knowledge of the gamepad, the mapping property is the empty string, and the order and index of each button and axis can potentially be quite exotic.