packalg/Box.java at master · Arwid/packalg · GitHub

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packagepackalg;
/**
 * PackAlg
 * By Arwid Bancewicz, October 19, 2009
 */

// Imports
importjava.util.Arrays;
importjava.util.List;

/**
 * Box.java - A simple class represents a 3-dimensional rectangular object
 * with position and dimensions.
 *
 * @author Arwid Bancewicz
 * @version 1.2, (09/19/09)
 * @see Shape
 */
publicclassBoxextendsShape {

// Fields
protectedintiiWidth, iiLength, iiHeight; // dimensions

/**
 * Class constructor with specified dimensions.
 */
publicBox(intaiWidth, intaiLength, intaiHeight) {
super();
this.iiWidth = aiWidth;
this.iiLength = aiLength;
this.iiHeight = aiHeight;
	}

/**
 * Class constructor with specified dimensions and position.
 */
publicBox(intaiWidth, intaiLength, intaiHeight, intaiX, intaiY,intaiZ) {
super.setPosition(aiX, aiY, aiZ);
this.iiWidth = aiWidth;
this.iiLength = aiLength;
this.iiHeight = aiHeight;
	}

/**
 * @see Shape#getArea()
 */
@Override
publicintgetArea() {
returnthis.iiWidth * this.iiLength;
	}

/**
 * @see Shape#getVolume()
 */
@Override
publicintgetVolume() {
returnthis.iiWidth * this.iiLength * this.iiHeight;
	}

/**
 * @see Shape#rotateXY()
 */
@Override
publicvoidrotateXY() {
// swap width and length
intloWidth = this.iiWidth;
this.iiWidth = this.iiLength;
this.iiLength = loWidth;
	}

/**
 * @see Shape#canContain(Shape)
 */
@Override
publicbooleancanContain(ShapeaoShape) {
if (aoShapeinstanceofBox)
returncanContain((Box) aoShape);
returnfalse;
	}

/**
 * Box implementation.
 * @see Shape#canContain(Shape)
 */
publicbooleancanContain(BoxaoBox) {
return (aoBox.iiWidth <= this.iiWidth
 && aoBox.iiLength <= this.iiLength && aoBox.iiHeight <= this.iiHeight);
	}

/**
 * @see Shape#attemptToContain(Shape)
 */
@Override
publicbooleanattemptToContain(ShapeaoShape) {
if (aoShapeinstanceofBox)
returnattemptToContain((Box) aoShape);
returnfalse;
	}

/**
 * Box implementation.
 * @see Shape#attemptToContain(Shape)
 */
publicbooleanattemptToContain(BoxaoBox) {
if (canContain(aoBox))
returntrue;
rotateXY();
if (canContain(aoBox))
returntrue;
rotateXY(); // back to default
returnfalse;
	}

/**
 * @see Shape#breakUp(Shape)
 */
@Override
publicList<Shape> breakUp(ShapeaoShape) {
if (aoShapeinstanceofBox)
returnbreakUp((Box) aoShape);
returnnull;
	}

/**
 * Box implementation (Assumes this shape can fit into specified shape).
 * @see Shape#breakUp(Shape)
 */
publicList<Shape> breakUp(BoxaoBox) {
ShapeloSubBoxX = newBox(aoBox.iiWidth - this.iiWidth, aoBox.iiLength,
aoBox.iiHeight, this.iiX + this.iiWidth, aoBox.iiY, aoBox.iiZ);
ShapeloSubBoxY = newBox(this.iiWidth, aoBox.iiLength - this.iiLength,
aoBox.iiHeight, this.iiX, aoBox.iiY + this.iiLength, aoBox.iiZ);
ShapeloSubBoxZ = newBox(this.iiWidth, this.iiLength, aoBox.iiHeight
 - this.iiHeight, this.iiX, aoBox.iiY, aoBox.iiZ + this.iiHeight);
returnArrays.asList(loSubBoxX, loSubBoxY, loSubBoxZ);
	}

/**
 * Returns a string formated representation of box's dimensions and position.
 * @see Shape#toFullString()
 */
@Override
publicStringtoFullString() {
return"Box [Width=" + iiWidth + ", Length=" + iiLength + ", Height="
 + iiHeight + ", Position=" + super.toString() + "]";
	}

/**
 * Returns a string formated representation of box's dimensions
 * @see Shape#toString()
 */
@Override
publicStringtoString() {
return"Box [Width=" + iiWidth + ", Length=" + iiLength + ", Height="
 + iiHeight + "]";
	}

/**
 * Compares this box to the specified object.
 * @see Shape#equals(Object)
 */
@Override
publicbooleanequals(Objectobj) {
if (this == obj)
returntrue;
if (obj == null)
returnfalse;
if (getClass() != obj.getClass())
returnfalse;
if (!super.equals(obj))
returnfalse;
Boxother = (Box) obj;
if (iiWidth != other.iiWidth || iiLength != other.iiLength
 || iiHeight != other.iiHeight)
returnfalse;
returntrue;
	}
}