read-mouse ( -- mouse-state )
Game controller input

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Vocabulary
game.input

Inputs
None

Outputs

mouse-state

a mouse-state

Word description
Reads the current mouse state relative to either when the game input interface was opened with open-game-input or when the mouse state was reset with reset-mouse.

Warning
For efficiency, the implementation may reuse the returned mouse-state object for future read-mouse or reset-mouse calls. You should clone the mouse-state object if you need to preserve it.

Definition

IN: game.input

HOOK: read-mouse game-input-backend ( -- mouse-state )

Methods

USING: accessors game.input game.input.gtk kernel math ;

M: gtk-game-input-backend read-mouse
    query-pointer mouse-state new swap 256 /i >>buttons
    swap 400 - >>dy swap 400 - >>dx 0 >>scroll-dy 0 >>scroll-dx
    ;


USING: accessors game.input game.input.x11 kernel math
namespaces ;

M: x11-game-input-backend read-mouse
    mouse-reset? get [ reset-mouse ] unless
    query-pointer mouse-state new swap 256 /i >>buttons
    swap 400 - >>dy swap 400 - >>dx 0 >>scroll-dy 0 >>scroll-dx
    ;