scg/ch05/RollDice

01 packagepackage is used to name the directory or folder a class is in scg.ch05;
02 
03 importimport means to make the classes and/or packages available in this program fang2.core.Game;
04 
05 /**
06  * Demonstration game using OneDie and EasyButton classes: Roll two big
07  * dice every time the button saying "Roll Dice" is pressed.
08  */
09 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 RollDice
10   extendsextends means to customize or extend the functionality of a class Game {open braces start code blocks and must be matched with a close brace
11   /** the button at the bottom of the screen */
12   privateprivate is used to restrict access to the current class only EasyButton button;
13 
14   /** the left die */
15   privateprivate is used to restrict access to the current class only OneDie leftDie;
16 
17   /** the right die */
18   privateprivate is used to restrict access to the current class only OneDie rightDie;
19 
20   /**
21    * Advance the game one frame.
22    *
23    * @paramthis is the Javadoc tag for documenting the purpose of parameters  secondsSinceLastCall  time since last advance
24    */
25   @Override
26   publicpublic is used to indicate unrestricted access (any other class can have access) voidvoid means the method does not return a value advance(doubledouble is the type for numbers that can contain decimal fractions secondsSinceLastCall) {open braces start code blocks and must be matched with a close brace
27     ifif executes the next statement only if the condition in parenthesis evaluates to true (button.isPressed()) {open braces start code blocks and must be matched with a close brace
28       leftDie.roll();
29       rightDie.roll();
30     }close braces end code blocks and must match an earlier open brace
31   }close braces end code blocks and must match an earlier open brace
32 
33   /**
34    * Set up the game forfor is a looping structure for repeatedly executing a block of code play. Initializes all of the sprites (either
35    * here or in other setup functions).
36    */
37   @Override
38   publicpublic is used to indicate unrestricted access (any other class can have access) voidvoid means the method does not return a value setup() {open braces start code blocks and must be matched with a close brace
39     button =this assignment operator makes the left side equal to the right side newnew is used to create objects by calling the constructor EasyButton();
40     button.setScale(0.5);
41     button.setLocation(0.5, 0.85);
42     button.setColor(getColor("yellow"));
43     button.setTextColor(getColor("navy"));
44     addSprite(button);
45 
46     button.setText("Roll Dice");
47 
48     leftDie =this assignment operator makes the left side equal to the right side newnew is used to create objects by calling the constructor OneDie();
49     leftDie.setScale(0.33);
50     leftDie.setLocation(5.0 / 18.0, 0.5);
51     addSprite(leftDie);
52 
53     rightDie =this assignment operator makes the left side equal to the right side newnew is used to create objects by calling the constructor OneDie();
54     rightDie.setScale(0.33);
55     rightDie.setLocation(13.0 / 18.0, 0.5);
56     addSprite(rightDie);
57   }close braces end code blocks and must match an earlier open brace
58 }close braces end code blocks and must match an earlier open brace
59 
60 //Uploaded on Mon Mar 29 21:41:32 EDT 2010