Interface: keys

---

The MC.keys object contains all key related variables.
Upon initialisation it sets up document event listeners for keyup & keydown events
Each supported key has a MC.keys.# member object where the # is the key name
Within this are:

---

(1) down {Boolean} true if the key is currently depressed, else false
(2) onDown {function} A placeholder function for Developer customisation, called when the key is depressed
(3) onUp {function} A placeholder function for Developer customisation, called when the key is released

---

The following keys are supported by the MaxCanvas engine:
N.B. these names are to be used exactly as typed here
Misc: back, tab, enter, shift, ctrl, caps, esc, space, pageUp, pageDown, end, home, leftArrow, upArrow, rightArrow, downArrow, del (N.B. if a choice between left and right, the left is supported. e.g. the left shift key is supported, the right is not)
Numbers: _0,_1,_2,_3,_4,_5,_6,_7,_8,_9 (N.B. There are prefixed with an underscore to comply with JS naming rules)
Letters: a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z
NumberPad: num0,num1,num2,num3,num4,num5,num6,num7,num8,num9
Other keys are not supported as they may vary based upon international keyboard layouts or have possible browser pre-sets (e.g. F5 is refresh)

MC.keys.p.onDown = function () {
      myPrintFunction();
};

MC.keys.space.onUp = function () {
      if (gun.status == "ready") {
          gun.fire();
      }
};

MC.keys.m.onDown = function () {
      if (MC.keys.ctrl.down) {
          console.log("MaxCanvas is great!!");
      }
};