jam/CompositeExample

01 packagepackage is used to name the directory or folder a class is in jam;
02 
03 importimport means to make the classes and/or packages available in this program wiki.Wiki;
04 importimport means to make the classes and/or packages available in this program fang.*;
05 importimport means to make the classes and/or packages available in this program java.awt.*;
06 importimport means to make the classes and/or packages available in this program java.awt.geom.*;
07 
08 /**
09  * All about my game here.
10  * @authornull Jam Jenkins
11  */
12 publicpublic is used to indicate unrestricted access (any other class can have access) classclass is a group of fields and methods used for making objects CompositeExample extendsextends means to customize or extend the functionality of a class GameLoop
13 {open braces start code blocks and must be matched with a close brace
14   /**an oval*/
15   privateprivate is used to restrict access to the current class only CompositeSprite oval;
16 
17   /**sets up the game*/
18   publicpublic is used to indicate unrestricted access (any other class can have access) voidvoid means the method does not return a value startGame()
19   {open braces start code blocks and must be matched with a close brace
20     makeSprites();
21     addSprites();
22   }close braces end code blocks and must match an earlier open brace
23 
24   /**makes the sprites*/
25   privateprivate is used to restrict access to the current class only voidvoid means the method does not return a value makeSprites()
26   {open braces start code blocks and must be matched with a close brace
27     oval=this assignment operator makes the left side equal to the right sidenewnew is used to create objects by calling the constructor CompositeSprite();
28     PolygonSprite pentagon=this assignment operator makes the left side equal to the right sidenewnew is used to create objects by calling the constructor PolygonSprite(5);
29     pentagon.setScale(0.25);
30     pentagon.setLocation(0.05, 0);
31     oval.addShape(pentagon.getShape(), Color.RED);
32     OvalSprite circle=this assignment operator makes the left side equal to the right sidenewnew is used to create objects by calling the constructor OvalSprite(1, 1);
33     circle.setScale(0.25);
34     circle.setLocation(0.5, 0);
35     oval.addShape(circle.getShape(), Color.YELLOW);
36     pentagon.setLocation(0.95, 0);
37     oval.addShape(pentagon.getShape(), Color.BLUE);
38     oval.setScale(0.75);
39     oval.setLocation(0.5, 0.5);
40   }close braces end code blocks and must match an earlier open brace
41 
42   /**adds the sprites to the screen*/
43   privateprivate is used to restrict access to the current class only voidvoid means the method does not return a value addSprites()
44   {open braces start code blocks and must be matched with a close brace
45     canvas.addSprite(oval);
46   }close braces end code blocks and must match an earlier open brace
47 
48   /**handle input and game events*/
49   publicpublic is used to indicate unrestricted access (any other class can have access) voidvoid means the method does not return a value advanceFrame(doubledouble is the type for numbers that can contain decimal fractions timePassed)
50   {open braces start code blocks and must be matched with a close brace
51     oval.setLocation(getPlayer().getMouse().getLocation());
52     ifif executes the next statement only if the condition in parenthesis evaluates to true(getPlayer().getMouse().getClickLocation()!=this is the not equals operator which evaluates to true if both sides are differentnullnull is the value used to refer to a non-existant object)
53     {open braces start code blocks and must be matched with a close brace
54       oval.setScale(random.nextDouble());
55     }close braces end code blocks and must match an earlier open brace
56     ifif executes the next statement only if the condition in parenthesis evaluates to true(getPlayer().getKeyboard().getLastKey()==this is the comparison operator which evaluates to true if both sides are the same'r')
57     {open braces start code blocks and must be matched with a close brace
58       oval.setColor(Color.RED);
59     }close braces end code blocks and must match an earlier open brace
60     ifif executes the next statement only if the condition in parenthesis evaluates to true(getPlayer().getKeyboard().getLastKey()==this is the comparison operator which evaluates to true if both sides are the same'w')
61     {open braces start code blocks and must be matched with a close brace
62       oval.setColor(Color.WHITE);
63     }close braces end code blocks and must match an earlier open brace
64   }close braces end code blocks and must match an earlier open brace
65 }close braces end code blocks and must match an earlier open brace