Method getRule

code/src/java/pcgen/core/doomsdaybook/RuleSet.java:209–254

Get the rule. @return rule @throws Exception When no entry exists for the supplied key.

()

	 * @throws Exception When no entry exists for the supplied key.
	 */
	public Rule getRule() throws Exception
	{
		int rangeTop = getRange();
		int modifier;

		try
		{
			modifier = Integer.parseInt(allVars.getVal(getId() + "modifier"));
		}
		catch (Exception e)
		{
			modifier = 0;
		}

		// Determine which entry to choose
		Dice die = new Dice(1, rangeTop, 0);
		int choice = die.roll();
		choice += modifier;

		choice = (choice < 0) ? rangeTop : choice;

		//select the detail to return
		int aWeight = 0;

		// Iterate through the list of choices until the weights (from each DataValue)
		// are greater the num chosen as the 'choice'
		for (String key : this)
		{
			Rule chkValue = (Rule) allVars.getDataElement(key);
			int valueWeight = chkValue.getWeight();

			if (valueWeight > 0)
			{
				aWeight += valueWeight;

				if (aWeight >= choice)
				{
					retRule = chkValue;

					return chkValue;
				}
			}
		}

		return retRule;
	}

	/**
	 * Get the rule given a choice