Mouse Button tracking in Tutorials & Snippets

ID:195024
 
Mar 27 2011, 4:54 pm (Edited by moderator on Apr 16 2011, 11:28 pm)
Quick and easy tracking of which of the three mouse buttons are being held down.

This can alternatively downloaded as a library here.

//Title: Mouse Button Tracking
//Credit to: F0lak


// mouse button macros

#define MOUSE_LEFT  1    // left click
#define MOUSE_RIGHT 2    // right click
#define MOUSE_MIDDLE    4    // middle click

client
    var
        mouses_down = 0      //variable for what keys are being held down


    // bitflags to track holding down mouse buttons.
    // uncomment the //world << mouses_down to see.

    // MouseDown() tells us they're being held down
    // then we turn on their respective bitflags
    MouseDown(atom/object,location,control,params)
        var/list/pref = params2list(params)
        if("left" in pref)
            mouses_down |= MOUSE_LEFT
        if("right" in pref)
            mouses_down |= MOUSE_RIGHT
        if("middle" in pref)
            mouses_down |= MOUSE_MIDDLE

        //world << mouses_down // uncomment for output

        ..()

    // MouseUp() tells us they are no longer being held down.
    // then we turn off their respective bitflags
    MouseUp(object,location,control,params)
        var/list/pref = params2list(params)
        if("left" in pref)
            mouses_down &= ~MOUSE_LEFT
        if("right" in pref)
            mouses_down &= ~MOUSE_RIGHT
        if("middle" in pref)
            mouses_down &= ~MOUSE_MIDDLE

        //world << mouses_down // uncomment for output

        ..()