mouse-state
Game controller input

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Vocabulary
game.input

Class description
The read-mouse word returns objects of this class. mouse-state objects have the following slots:

•	dx contains the mouse's X axis movement.
•	dy contains the mouse's Y axis movement.
•	scroll-dx contains the scroller's X axis movement.
•	scroll-dy contains the scroller's Y axis movement.
•	buttons contains a sequence of boolean values indicate the state of the mouse's buttons.

Mouse movement is recorded relative to when the game input interface was opened with open-game-input or the mouse state is reset with reset-mouse.

Definition

IN: game.input

TUPLE: mouse-state dx dy scroll-dx scroll-dy buttons ;

Methods

USING: accessors game.input generic kernel ;

M: mouse-state clone
    M\ mouse-state clone (call-next-method)
    dup buttons>> clone >>buttons ;