add

Author: vangj

java/greenfoot/bump-babies/Baby.class

@@ -0,0 +1,15 @@
+#BlueJ class context
+comment0.target=Baby
+comment0.text=\n\ Write\ a\ description\ of\ class\ Baby\ here.\n\ \n\ @author\ (your\ name)\ \n\ @version\ (a\ version\ number\ or\ a\ date)\n
+comment1.params=id\ x\ y
+comment1.target=Baby(int,\ int,\ int)
+comment2.params=
+comment2.target=int\ getId()
+comment3.params=
+comment3.target=int\ getX()
+comment4.params=
+comment4.target=int\ getY()
+comment5.params=
+comment5.target=void\ act()
+comment5.text=\n\ Act\ -\ do\ whatever\ the\ Baby\ wants\ to\ do.\ This\ method\ is\ called\ whenever\n\ the\ 'Act'\ or\ 'Run'\ button\ gets\ pressed\ in\ the\ environment.\n
+numComments=6

java/greenfoot/bump-babies/Baby.ctxt

@@ -0,0 +1,47 @@
+import greenfoot.*;  // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)
+import java.util.Random;
+
+/**
+ * Write a description of class Baby here.
+ * 
+ * @author (your name) 
+ * @version (a version number or a date)
+ */
+public class Baby extends Actor
+{
+    private static final Random _rand = new Random(37L);
+    private int id;
+    private int x;
+    private int y;
+    private int xDelta;
+    private int yDelta;
+    
+    public Baby(int id, int x, int y) {
+        this.id = id;
+        this.x = x;
+        this.y = y;
+        this.xDelta = _rand.nextDouble() < 0.5d ? -1 : 1;
+        this.yDelta = _rand.nextDouble() < 0.5d ? -1 : 1;
+    }
+    
+    public int getId() { return id; }
+    public int getX() { return x; }
+    public int getY() { return y; }
+    /**
+     * Act - do whatever the Baby wants to do. This method is called whenever
+     * the 'Act' or 'Run' button gets pressed in the environment.
+     */
+    public void act() {
+        x = x + xDelta;
+        y = y + yDelta;
+        
+        setLocation(x, y);
+        
+        if (x == 0 || x == getWorld().getWidth()) {
+            xDelta = xDelta * -1;
+        }
+        if (y == 0 || y == getWorld().getHeight()) {
+            yDelta = yDelta * -1;
+        }
+    }    
+}

java/greenfoot/bump-babies/Baby.java

@@ -0,0 +1,9 @@
+#BlueJ class context
+comment0.target=Fish
+comment0.text=\n\ Write\ a\ description\ of\ class\ Fish\ here.\n\ \n\ @author\ (your\ name)\ \n\ @version\ (a\ version\ number\ or\ a\ date)\n
+comment1.params=
+comment1.target=void\ act()
+comment1.text=\n\ Act\ -\ do\ whatever\ the\ Fish\ wants\ to\ do.\ This\ method\ is\ called\ whenever\n\ the\ 'Act'\ or\ 'Run'\ button\ gets\ pressed\ in\ the\ environment.\n
+comment2.params=
+comment2.target=void\ babyHitDetection()
+numComments=3

java/greenfoot/bump-babies/Fish.class

@@ -0,0 +1,36 @@
+import greenfoot.*;  // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)
+
+/**
+ * Write a description of class Fish here.
+ * 
+ * @author (your name) 
+ * @version (a version number or a date)
+ */
+public class Fish extends Actor
+{
+    /**
+     * Act - do whatever the Fish wants to do. This method is called whenever
+     * the 'Act' or 'Run' button gets pressed in the environment.
+     */
+    public void act() 
+    {
+        try {
+            MouseInfo mouseInfo = Greenfoot.getMouseInfo();
+            if (null != mouseInfo) {
+                setLocation(mouseInfo.getX(), mouseInfo.getY());
+            }
+        } catch (Exception e) {
+            // swallow exception
+        }
+        
+        babyHitDetection();
+    }    
+    
+    public void babyHitDetection() {
+        Actor actor = getOneIntersectingObject(Baby.class);
+        if (actor != null) {
+            Baby baby = (Baby) actor;
+            ((MyWorld)getWorld()).remove(actor);
+        }
+    }
+}

java/greenfoot/bump-babies/Fish.ctxt

@@ -0,0 +1,11 @@
+#BlueJ class context
+comment0.target=MyWorld
+comment0.text=\n\ Write\ a\ description\ of\ class\ MyWorld\ here.\n\ \n\ @author\ (your\ name)\ \n\ @version\ (a\ version\ number\ or\ a\ date)\n
+comment1.params=
+comment1.target=MyWorld()
+comment1.text=\n\ Constructor\ for\ objects\ of\ class\ MyWorld.\n\ \n
+comment2.params=
+comment2.target=Baby\ nextBaby()
+comment3.params=actor
+comment3.target=void\ remove(greenfoot.Actor)
+numComments=4

java/greenfoot/bump-babies/Fish.java

@@ -0,0 +1,64 @@
+import greenfoot.*;  // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)
+import java.util.List;
+import java.util.ArrayList;
+import java.util.Random;
+import java.util.concurrent.atomic.AtomicInteger;
+
+/**
+ * Write a description of class MyWorld here.
+ * 
+ * @author (your name) 
+ * @version (a version number or a date)
+ */
+public class MyWorld extends World
+{
+    private static final Random _rand = new Random(37L);
+    private static final AtomicInteger _babyCounter = new AtomicInteger(0);
+    
+    Fish fish;
+    List<Baby> babies;
+    final int numBabies = 20;
+    /**
+     * Constructor for objects of class MyWorld.
+     * 
+     */
+    public MyWorld()
+    {    
+        // Create a new world with 600x400 cells with a cell size of 1x1 pixels.
+        super(600, 400, 1); 
+        
+        fish = new Fish();
+        addObject(fish, getWidth() / 2, getHeight() / 2);
+        
+        babies = new ArrayList();
+        for (int i = 0; i < numBabies; i++) {
+            Baby baby = nextBaby();
+            babies.add(baby);
+            addObject(baby, baby.getX(), baby.getY());
+        }
+        
+    }
+    
+    private Baby nextBaby() {
+        int x = _rand.nextInt(getWidth());
+        int y = _rand.nextInt(getHeight());
+        Baby baby = new Baby(_babyCounter.getAndIncrement(), x, y);
+        System.out.println(baby.getId());
+        return baby;
+    }
+    
+    public void remove(Actor actor) {
+        babies.remove(actor);
+        removeObject(actor);
+        
+        int threshold = _rand.nextInt(100) + 1;
+        if (babies.size() <= threshold) {
+            int numToAdd = _rand.nextInt(5) + 1;
+            for (int i = 0; i < numToAdd; i++) {
+                Baby baby = nextBaby();
+                babies.add(baby);
+                addObject(baby, baby.getX(), baby.getY());
+            }
+        }
+    }
+}

java/greenfoot/bump-babies/MyWorld.class

@@ -0,0 +1,12 @@
+------------------------------------------------------------------------
+This is the project README file. Here, you should describe your project.
+Tell the reader (someone who does not know anything about this project)
+all he/she needs to know. The comments should usually include at least:
+------------------------------------------------------------------------
+
+PROJECT TITLE:
+PURPOSE OF PROJECT:
+VERSION or DATE:
+HOW TO START THIS PROJECT:
+AUTHORS:
+USER INSTRUCTIONS:

java/greenfoot/bump-babies/MyWorld.ctxt

@@ -0,0 +1,63 @@
+#Greenfoot project file
+class.Baby.image=baby2.png
+class.Fish.image=fish3.png
+class.MyWorld.image=bluerock.jpg
+dependency1.from=MyWorld
+dependency1.to=Fish
+dependency1.type=UsesDependency
+dependency2.from=MyWorld
+dependency2.to=Baby
+dependency2.type=UsesDependency
+dependency3.from=Fish
+dependency3.to=Baby
+dependency3.type=UsesDependency
+dependency4.from=Fish
+dependency4.to=MyWorld
+dependency4.type=UsesDependency
+editor.fx.0.height=0
+editor.fx.0.width=0
+editor.fx.0.x=0
+editor.fx.0.y=0
+height=585
+package.numDependencies=4
+package.numTargets=3
+project.charset=UTF-8
+publish.hasSource=false
+publish.locked=true
+publish.longDesc=
+publish.shortDesc=
+publish.tags=
+publish.title=
+publish.url=
+readme.height=58
+readme.name=@README
+readme.width=47
+readme.x=10
+readme.y=10
+simulation.speed=58
+target1.height=50
+target1.name=Baby
+target1.showInterface=false
+target1.type=ClassTarget
+target1.width=80
+target1.x=0
+target1.y=0
+target2.height=50
+target2.name=Fish
+target2.showInterface=false
+target2.type=ClassTarget
+target2.width=80
+target2.x=0
+target2.y=0
+target3.height=50
+target3.name=MyWorld
+target3.showInterface=false
+target3.type=ClassTarget
+target3.width=80
+target3.x=0
+target3.y=0
+version=3.0.0
+width=825
+world.lastInstantiated=MyWorld
+xPosition=1385
+yPosition=610

java/greenfoot/bump-babies/MyWorld.java

@@ -0,0 +1,15 @@
+#BlueJ class context
+comment0.target=GreenCar
+comment0.text=\n\ Write\ a\ description\ of\ class\ GreenCar\ here.\n\ \n\ @author\ (your\ name)\ \n\ @version\ (a\ version\ number\ or\ a\ date)\n
+comment1.params=world
+comment1.target=GreenCar(greenfoot.World)
+comment2.params=
+comment2.target=void\ act()
+comment2.text=\n\ Act\ -\ do\ whatever\ the\ GreenCar\ wants\ to\ do.\ This\ method\ is\ called\ whenever\n\ the\ 'Act'\ or\ 'Run'\ button\ gets\ pressed\ in\ the\ environment.\n
+comment3.params=
+comment3.target=void\ checkCollision()
+comment4.params=
+comment4.target=int\ getX()
+comment5.params=
+comment5.target=int\ getY()
+numComments=6

java/greenfoot/bump-babies/README.TXT

@@ -0,0 +1,51 @@
+import greenfoot.*;  // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)
+
+/**
+ * Write a description of class GreenCar here.
+ * 
+ * @author (your name) 
+ * @version (a version number or a date)
+ */
+public class GreenCar extends Actor
+{
+    private int x;
+    private int y;
+    
+    public GreenCar(World world) {
+        int wWidth = world.getWidth();
+        int wHeight = world.getHeight();
+        int iWidth = getImage().getWidth();
+        int iHeight = getImage().getHeight();
+        
+        x = (wWidth / 2) - (iWidth / 2);
+        y = wHeight - (iHeight / 2);
+    }
+    /**
+     * Act - do whatever the GreenCar wants to do. This method is called whenever
+     * the 'Act' or 'Run' button gets pressed in the environment.
+     */
+    public void act() 
+    {
+        if (Greenfoot.isKeyDown("left")) {
+            x = x - 1;
+        } else if (Greenfoot.isKeyDown("right")) {
+            x = x + 1;
+        } else if (Greenfoot.isKeyDown("up")) {
+            y = y - 1;
+        } else if (Greenfoot.isKeyDown("down")) {
+            y = y + 1;
+        }
+        setLocation(x, y);
+        checkCollision();
+    }    
+    
+    public void checkCollision() {
+        RedCar redCar = (RedCar) getOneIntersectingObject(RedCar.class);
+        if (null != redCar) {
+            Greenfoot.stop();
+        }
+    }
+    
+    public int getX() { return x; }
+    public int getY() { return y; }
+}

java/greenfoot/bump-babies/images/baby2.png

@@ -0,0 +1,21 @@
+#BlueJ class context
+comment0.target=MyWorld
+comment0.text=\n\ Write\ a\ description\ of\ class\ MyWorld\ here.\n\ \n\ @author\ (your\ name)\ \n\ @version\ (a\ version\ number\ or\ a\ date)\n
+comment1.params=
+comment1.target=MyWorld()
+comment1.text=\n\ Constructor\ for\ objects\ of\ class\ MyWorld.\n\ \n
+comment2.params=
+comment2.target=void\ act()
+comment3.params=
+comment3.target=void\ addRedCar()
+comment4.params=redCar
+comment4.target=void\ removeRedCar(RedCar)
+comment5.params=
+comment5.target=long\ getScore()
+comment6.params=
+comment6.target=int\ getLevel()
+comment7.params=
+comment7.target=int\ getRandomXPosition()
+comment8.params=
+comment8.target=java.util.List\ getXPositions()
+numComments=9