Game1

PS.keyDown = function (key, shift, ctrl, options) {
    "use strict";

if(GAME.running && !GAME.paused){
        movePlayer(key);
        if(key == 112){
            PS.timerStop(sTimerID);
            PS.debug("Game is paused.\n");
            GAME.paused = true;
        }   
    }   
    else if(GAME.running && GAME.paused){
        PS.debugClear();
        PS.debug("Game is paused.\n");
        if(key == 112){
            sTimerID = PS.timerStart(GAME.clock, gameUpdate);
            PS.debug("Game is unpaused.\n");
            GAME.paused = false;
        }   
    }
    else{
        PS.debugClear();
        PS.debug("Press r to restart game!\n");
        if(key == 114){
            GameSetup();
        }
    }
}