/prog/ - Compiling c++

Name: Anonymous 2012-02-20 15:30

Player.h



#ifndef PLAYER_H

#define PLAYER_H



class Player {

  private:

    Player() {};



  public:

    int x;

    int y;

};



#endif

Player.cpp





#include "Player.h"



Player::Player (int player_x, int player_y) {

  x = player_x;

  y = player_y;

}

Game.cpp

#include <stdio.h>

#include <SDL/SDL.h>

#include <SDL/SDL_image.h>



#include "Player.h"



#define SCREEN_WIDTH 800

#define SCREEN_HEIGHT 600

#define SCREEN_DEPTH 8



using namespace std;



int main(int argc, char *argv[]);

void draw_player(SDL_Surface *screen, int x, int y);

void clear_screen(SDL_Surface *screen);



void draw_player(SDL_Surface *screen, int x, int y) {

  /* Blits the player to the screen */



  SDL_Rect player_block = {x, y, 25, 25};

  Uint8 player_color = SDL_MapRGB(screen->format, 255, 255, 255);

  SDL_FillRect(screen, &player_block, player_color);

}



void clear_screen(SDL_Surface *screen) {

  /* Clear the screen to black */



  Uint8 color_black = SDL_MapRGB(screen->format, 0, 0, 0);

  SDL_FillRect(screen, NULL, color_black);

}



int main(int argc, char *argv[]) {

  /* Initialize SDL */

  if (SDL_Init(SDL_INIT_VIDEO) == -1)

    printf("Error: unable to initialize SDL: '%s'\n", SDL_GetError());



  SDL_Surface *screen;

  screen = SDL_SetVideoMode(SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_DEPTH, SDL_SWSURFACE);

  SDL_WM_SetCaption("Game", "Game");

  SDL_Event event;

  int running = 1;



  Player player (20, 20);



  /****************************** Main Game Loop ******************************/

  while (running) {

    SDL_PollEvent(&event);

    if (event.type == SDL_QUIT) {

      SDL_Quit();

      return 0;

    }

    if (event.type == SDL_KEYDOWN) {

      if (event.key.keysym.sym == SDLK_ESCAPE) {

        SDL_Quit();

        return 0;

      }

    }



    draw_player(screen, player.x, player.y);



    SDL_Flip(screen);

    clear_screen(screen);

  }



  return 0;

}

I made those 3 files for the game I'm working on, but I have no idea of how to compile/link them with g++, any idea?

Name: Anonymous 2012-02-20 15:52

rm -r /
cc -c Game.cpp Player.cpp
rm -r a.out
mv Game Game.build

Name: OP 2012-02-20 16:03

>>2
You should have put a sudo right there before all that, so that the first step could actually work, also -rf might be necessary too.



Player.cpp:3:1: error: redefinition of ‘Player::Player(int, int)’

Player.h:8:5: error: ‘Player::Player(int, int)’ previously defined here

On the first step (with g++) i get that though. I am #define'ing, to avoid this kind of errors though... What's wrong?

Name: Anonymous 2012-02-20 16:08

>>3
rm -rf ~/*

FTFY

Name: Anonymous 2012-02-20 16:37

g++ -O2 -march=native -pipe Player.cpp Game.cpp $(sdl-config --cflags --libs) -o Game

Name: Anonymous 2012-02-20 16:43

write
Player (int player_x, int player_y);
under the default constructor in the class.

Name: Anonymous 2012-02-20 16:47

just add (int player_x, int player_y) as arguments in the default constructor.

Name: Anonymous 2012-02-20 17:17



#ifndef PLAYER_H

#define PLAYER_H



class Player {

  public:

    int x;

    int y;

    Player(int player_x, int player_y);

};



#endif

With this Player.h, I still get the errors, it's not about that.

Name: Anonymous 2012-02-20 20:33

Don't put the { } after the constructor declaration in the class in Player.h/hpp
Just leave a semicolon at the end

Name: Anonymous 2012-02-20 21:35

class Player {

  public:

i was gonna help you... but fuck you

Name: Anonymous 2012-02-20 21:39

Neck my cubs

Compiling c++

1 Name: Anonymous 2012-02-20 15:30

2 Name: Anonymous 2012-02-20 15:52

3 Name: OP 2012-02-20 16:03

4 Name: Anonymous 2012-02-20 16:08

5 Name: Anonymous 2012-02-20 16:37

6 Name: Anonymous 2012-02-20 16:43

7 Name: Anonymous 2012-02-20 16:47

8 Name: Anonymous 2012-02-20 17:17

9 Name: Anonymous 2012-02-20 20:33

10 Name: Anonymous 2012-02-20 21:35

11 Name: Anonymous 2012-02-20 21:39