boolean reachedMaxRaises() {
	// return true if number of raise actions in history is greater than maxNumberOfRaises
    	int historySize = actionHistory.size();
    	if(historySize < maxNumberOfRaises)
    		return false;
    	for(int i = maxNumberOfRaises; i >= 1; i--) {
    		if(actionHistory.get(historySize - i) != Action.RAISE)
    			return false;	
    	}
    	return true;
    }