From Player Class

/**
    Blizzeta Game - An Action RPG
    Copyright (C) 2014 Blizzeta Software and Gaming
*/
    /**
     * Re-Buffers the Player
     */
    public void tick() {
        xs = 0;
        ys = 0;
        if(isMovingUp && !isMovingDown) {
            ys -= SPEED;
        } else if(isMovingDown && !isMovingUp) {
            ys += SPEED;
        }

        if(isMovingRight && !isMovingLeft) {
            xs += SPEED;
        } else if(isMovingLeft && !isMovingRight) {
            xs -= SPEED;
        }
        move(xs,ys);
    }