Range.java

package LDraw.Support;

public class Range {
	/**
	 * @uml.property  name="start"
	 * @uml.associationEnd  multiplicity="(0 -1)" elementType="LDraw.Files.LDrawMPDModel"
	 */
	int start;
	/**
	 * @uml.property  name="end"
	 * @uml.associationEnd  multiplicity="(0 -1)" elementType="java.lang.String"
	 */
	int end;

	public Range() {
		this.start = -1;
		this.end = -1;
	}

	public Range(int start, int length) {
		this.start = start;
		this.end = start+length-1;
	}

	public int getLocation() {
		return start;
	}

	public int getMaxRange() {
		return end;
	}

	public int length() {
		if (start == -1 || end == -1)
			return 0;
		return end - start + 1;
	}
	
	public void decreseLength(int value){
		start+=value;
		if(start > end)
			start = end = -1;
	}
}