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    <p>MY FULL SOLUTION OF THE CREATURES CLASS</p> <pre><code>import java.awt.geom.Ellipse2D; import java.awt.Rectangle; import java.awt.Color; import java.awt.Polygon; import java.awt.Graphics2D; public class Creatures extends Moveable2DShape{ private Color color; private int delay, number, t; private int xPos, yPos; private double xSpeed, ySpeed; private final int POINTS = 3; private int []x = new int[POINTS]; private int []y = new int[POINTS]; private double width, height; private boolean dead; Ellipse2D.Double body; Polygon tail; public Creatures(int xPos, int yPos, int shapeWidth, int shapeHeight, int bwidth, int bheight, double xSpeed, double ySpeed, Color c, int type, boolean l){ super(xPos, yPos, shapeWidth, shapeHeight, bwidth, bheight, xSpeed, ySpeed); color = c; this.xPos = xPos; this.yPos = yPos; this.xSpeed = xSpeed; this.ySpeed = ySpeed; width = shapeWidth; height = shapeHeight; t = type; dead = l; } /*@x[3] calculate the x position points of the tail *@y[3] calculate the y position points of the tail *@tail create the polygon using the points and a defined constant of 3 *@return the polygon @tail*/ public Polygon triangle(int xP, int yP){ x[0] = xP + 100; x[1] = x[0]; x[2] = (int)(xP + width/2); y[0] = (int)(yP + (height)); y[1] = yP; y[2] = (int)(yP + height/2); tail = new Polygon(x,y,POINTS); return tail; } /*@newBW will determine the new width of the bounding box *@return the new bounding box width*/ public int newBWidth(){ int newBW; newBW = (int)(x[0] - getBoundingBoxMaxX()) + (int)getBoundingBoxWidth(); return newBW; } /*when called, the move method of Creatures will move along the x-values\ *set the new bounding box with the new calculated width */ public void move(){ this.xPos=(int) (getXPos() - xSpeed); int overShoot = (int) (xPos + getBoundingBoxWidth() - environmentWidth); if (xPos &lt;= 0) { xPos = 0; xSpeed = -xSpeed ; } else if (overShoot &gt; 0) { xPos = (int)(environmentWidth - getBoundingBoxWidth()); xSpeed = - xSpeed ; } /* Reflect the object if it goes too far */ overShoot = (int) (yPos + getBoundingBoxHeight() - environmentHeight); if (yPos &lt;= 0) { yPos = 0; ySpeed = -ySpeed ; } else if (overShoot &gt; 0) { yPos = (int) (environmentHeight - getBoundingBoxHeight()); ySpeed = - ySpeed ; } if(xPos == 0 || xPos == 880){ this.yPos =+ (int)(getYPos() + ySpeed); } if(yPos == 650){ this.yPos =+ (int)(getYPos() + ySpeed); } // move the shape to the new position moveTo(xPos,yPos); setBoundingBox(getXPos() , getYPos() , newBWidth(), height); } /*Detect if two bounding boxes intersects with one another if two intersects *call the collision response method and @return true, else @return false. */ public boolean collisionDetect(Moveable2DShape other){ if(getBoundingBox().intersects(other.getBoundingBox())){ return true; } return false; } /*@other2 cast the Moveable2DShape object into a Creatures object and compare *if @other2 object type is greater than the current object then the current object dies *if the two objects are equal to each other then change the color of both objects randomly *otherwise @other2 dies. */ public void collisionResponse(Moveable2DShape other){ int []c2 = new int[3]; int []c3 = new int[3]; Creatures other2 = (Creatures) other; if (getType() &lt; other2.getType()){ fishiesDie(); }else if(getType() == other2.getType()){ for(int a = 0; a &lt; 3; a++){ c2[a] = (int)(Math.random()*255) + 1; c3[a] = (int)(Math.random()*255) + 1; } color = new Color(c2[0], c2[1], c2[2]); other2.color = new Color(c3[0], c3[1], c3[2]); }else{ other2.fishiesDie(); } } /*@return the type of the fish */ public int getType(){ return t; } /*@dead equals to true when called */ public void fishiesDie(){ dead = true; } /*@return dead */ public boolean isDead(){ return dead; } /*@body draw the general body ellipse *@g set the colour and draw the general fish shape(body and tail)*/ public void draw(Graphics2D g){ body = new Ellipse2D.Double((int)getXPos(), (int)getYPos() , width, height); triangle((int)getXPos(), (int)getYPos()); //g.draw(getBoundingBox()); g.setColor(color); g.fill(body); g.fill(tail); } } </code></pre>
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