Simple sidescroller game - bullet.cpp

//This example program is created by thecplusplusuy for demonstration purposes. It's a simple mario like side-scroller game:
//http://www.youtube.com/user/thecplusplusguy
//Free source, modify if you want, LGPL licence (I guess), I would be happy, if you would not delete the link
//so other people can see the tutorial
//this file is bullet.cpp just a class (implementation) for a bullet.
#include "bullet.h"

bullet::bullet(SDL_Surface* img,int x,int y,int xVel,int yVel)  //constructor
{
    //just set all of the variables, nothing new in here
    box.x=x;
    box.y=y;
    image=img;
    box.w=image->w;
    box.h=image->h;
    xvel=xVel;
    yvel=yVel;
}

void bullet::move()
{
    //move the bullet, we just add the velocity (speed) to the position
    box.x+=xvel;
    box.y+=yvel;
}

void bullet::show(SDL_Surface* screen)
{
    //blit it to the screen
    SDL_BlitSurface(image,NULL,screen,&box);
}


SDL_Rect* bullet::getRect()
{
    //return the address of the bound box (for collision detection)
    return &box;
}
//that was one of the simplest class, nothing tricky.