scg/ch03/Diamond

01 packagepackage is used to name the directory or folder a class is in scg.ch03;
02 
03 importimport means to make the classes and/or packages available in this program fang2.core.Game;
04 importimport means to make the classes and/or packages available in this program fang2.sprites.RectangleSprite;
05 
06 /**
07  * A simple game demonstrating how to draw a red square on the screen
08  * and then rotate it to make it into a diamond.
09  */
10 
11 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 Diamond
12   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
13   /**
14    * Setup all of the sprites appearing in the game. A diamond is a
15    * square rotated 45 degrees. This draws a single diamond in the
16    * center of the screen.
17    */
18   @Override
19   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
20     // make background white
21     setBackground(getColor("white"));
22 
23     // create the diamond, set its color, position, and rotation
24     RectangleSprite diamond =this assignment operator makes the left side equal to the right side newnew is used to create objects by calling the constructor RectangleSprite(0.1, 0.1);
25     diamond.setColor(getColor("red"));
26     diamond.setLocation(0.5, 0.5);
27     diamond.rotateDegrees(45.0);
28     addSprite(diamond);
29   }close braces end code blocks and must match an earlier open brace
30 }close braces end code blocks and must match an earlier open brace
31 
32 //Uploaded on Mon Mar 29 21:39:41 EDT 2010