BulletObject.h

00001 /*
00002  * SOURCE FILE : BulletObject.h
00003  *
00004  * Represents a bullet type objects with horizontal and vertical velocities.
00005  *
00006  */
00007 
00008 #ifndef BulletObjectIncluded
00009   
00010   #define BulletObjectIncluded
00011 
00012   #include "Gameduino.h"
00013   #include "GameObject.h"
00014   #include "SpriteImageId.h"
00015   #include "SpriteGroup.h"
00016 
00017   class BulletObject : public GameObject {
00018     
00019   public :
00020 
00021     /***************/
00022     /* CONSTRUCTOR */
00023     /***************/
00024     BulletObject() :
00025       imageNumber( PlayerBulletImage ),
00026       spriteGroup( GoodGuy )
00027     {
00028       DeleteWhenRestricted = true;
00029     }
00030     
00031     /**************/
00032     /* DESTRUCTOR */
00033     /**************/
00034     virtual ~BulletObject() {
00035     }
00036     
00037     /************************/
00038     /* GET GAME OBJECT TYPE */
00039     /************************/
00040     // Returns type of game object.
00041     virtual GameObjectTypes GetType( void ) {
00042       return BulletObjectType;
00043     }
00044 
00045     /****************/
00046     /* START BULLET */
00047     /****************/
00048     void Start( Int16 x, Int16 y, Int16 hv, Int16 vv ) {
00049       Xco = x;
00050       Yco = y;
00051       hSpeed = hv;
00052       vSpeed = vv;
00053       Visible = true;
00054     }
00055     
00056     /************************/
00057     /* MOVE THE GAME OBJECT */
00058     /************************/
00059     virtual void ProtectedMove( void ) {
00060       Xco += hSpeed;
00061       Yco += vSpeed;
00062     }
00063 
00064     /************************/
00065     /* DRAW THE GAME OBJECT */
00066     /************************/
00067     // Pass pointer to Gameduino to draw on in gd.
00068     // This is only called after it has been established that the
00069     // game object is visible.
00070     virtual void Draw( Gameduino *gd ) {
00071       gd->sprite( SpriteNumber, ToPixel( Xco ), ToPixel( Yco ), imageNumber, 0, Gameduino::None, spriteGroup );
00072     }
00073    
00074   private :
00075 
00076     // Number of sprite image used for bullet.
00077     SpriteImageId imageNumber;
00078 
00079     // Indicates whether these are good or bad bullets for
00080     // purposes of collision detection.
00081     SpriteGroup spriteGroup;
00082     
00083     // Horizontal and vertical velocities.
00084     Int16 hSpeed, vSpeed;
00085 
00086   };
00087     
00088 #endif
00089 
00090 /* END of BulletObject.h */
00091