//call this method for time to move forward one step
//TIME MOVES FORWARD LIKE SO:
// - move everything needed to move 1 unit, update positions
// - set fire to objects needed to set fire
// - move away any fires needed to move away
// - update the slider
// - animate move everthing needed to animate
public void StepTimeForward()
{
wbScript.DisableButtonForATime(moveAnimationSpeed);
allItemsOnGrid = gManager.GetGameObjectsOnGrid();
// - move everything needed to move 1 unit, update positions
mmScript.MoveAllNeeded();
// - set fire to objects needed to set fire
fmScript.SpreadFire();
fmScript.MoveAwayAllFiresIfNeeded(timeUnitsElapsed);
UpdateMeter();
timeUnitsElapsed++; //tick time by 1
//only freeze things on fire
gManager.FreezeObjectsOnFire();
CheckIfWin();
}