Discussion :

[fifafou]

bonjour,
je cherche a créer une classe balle pour un petit jeu de tank mais c'est la première fois que je fais une classe C++ et évidemment je me retrouve avec pas mal d'erreurs à la compilation

Code :

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-------------- Build: Debug in Tank (compiler: GNU GCC Compiler)---------------
 
mingw32-g++.exe -Wall -g -Iinclude -c "C:\Users\___\Documents\c++ prog\Tank\sources\balle.cpp" -o obj\Debug\sources\balle.o
In file included from C:\Users\baud\Documents\c++ prog\Tank\sources\balle.cpp:1:0:
C:\Users\___\Documents\c++ prog\Tank\sources\balle.h:8:17: error: 'SDL_Surface' has not been declared
     void update(SDL_Surface* ecran,int mat[][25]);
                 ^
C:\Users\___\Documents\c++ prog\Tank\sources\balle.h:15:5: error: 'SDL_Surface' does not name a type
     SDL_Surface* balle;
     ^
C:\Users\___\Documents\c++ prog\Tank\sources\balle.h:16:5: error: 'SDL_Rect' does not name a type
     SDL_Rect pos_balle;
     ^
C:\Users\___\Documents\c++ prog\Tank\sources\balle.cpp: In constructor 'Balle::Balle()':
C:\Users\___\Documents\c++ prog\Tank\sources\balle.cpp:9:5: error: 'SDL_Surface' was not declared in this scope
     SDL_Surface* balle=IMG_Load("data/balle.png");
     ^
C:\Users\___\Documents\c++ prog\Tank\sources\balle.cpp:9:18: error: 'balle' was not declared in this scope
     SDL_Surface* balle=IMG_Load("data/balle.png");
                  ^
C:\Users\___\Documents\c++ prog\Tank\sources\balle.cpp:9:49: error: 'IMG_Load' was not declared in this scope
     SDL_Surface* balle=IMG_Load("data/balle.png");
                                                 ^
C:\Users\___\Documents\c++ prog\Tank\sources\balle.cpp:10:5: error: 'pos_balle' was not declared in this scope
     pos_balle.x=this.x;
     ^
C:\Users\___\Documents\c++ prog\Tank\sources\balle.cpp:10:22: error: request for member 'x' in '(Balle*)this', which is of pointer type 'Balle*' (maybe you meant to use '->' ?)
     pos_balle.x=this.x;
                      ^
C:\Users\___\Documents\c++ prog\Tank\sources\balle.cpp:11:22: error: request for member 'y' in '(Balle*)this', which is of pointer type 'Balle*' (maybe you meant to use '->' ?)
     pos_balle.y=this.y;
                      ^
C:\Users\___\Documents\c++ prog\Tank\sources\balle.cpp:5:12: warning: unused variable 'x' [-Wunused-variable]
     double x=50;
            ^
C:\Users\___\Documents\c++ prog\Tank\sources\balle.cpp:6:12: warning: unused variable 'y' [-Wunused-variable]
     double y=50;
            ^
C:\Users\___\Documents\c++ prog\Tank\sources\balle.cpp:7:12: warning: unused variable 'vy' [-Wunused-variable]
     double vy=1;
            ^
C:\Users\___\Documents\c++ prog\Tank\sources\balle.cpp:8:12: warning: unused variable 'vx' [-Wunused-variable]
     double vx=1;
            ^
C:\Users\___\Documents\c++ prog\Tank\sources\balle.cpp:12:9: warning: unused variable 'd' [-Wunused-variable]
     int d=1000;
         ^
C:\Users\___\Documents\c++ prog\Tank\sources\balle.cpp: At global scope:
C:\Users\___\Documents\c++ prog\Tank\sources\balle.cpp:14:1: error: prototype for 'Balle::Balle(double, double, double, double)' does not match any in class 'Balle'
 Balle::Balle(double m_x,double m_y,double m_vx,double m_vy)
 ^
In file included from C:\Users\baud\Documents\c++ prog\Tank\sources\balle.cpp:1:0:
C:\Users\___\Documents\c++ prog\Tank\sources\balle.h:3:7: error: candidates are: Balle::Balle(const Balle&)
 class Balle
       ^
C:\Users\___\Documents\c++ prog\Tank\sources\balle.h:7:5: error:                 Balle::Balle(double, double)
     Balle(double x,double y);
     ^
C:\Users\___\Documents\c++ prog\Tank\sources\balle.cpp:3:1: error:                 Balle::Balle()
 Balle::Balle()
 ^
C:\Users\___\Documents\c++ prog\Tank\sources\balle.cpp:25:20: error: variable or field 'update' declared void
 void Balle::update(SDL_Surface* ecran,int mat[][25])
                    ^
C:\Users\___\Documents\c++ prog\Tank\sources\balle.cpp:25:20: error: 'SDL_Surface' was not declared in this scope
C:\Users\___\Documents\c++ prog\Tank\sources\balle.cpp:25:33: error: 'ecran' was not declared in this scope
 void Balle::update(SDL_Surface* ecran,int mat[][25])
                                 ^
C:\Users\___\Documents\c++ prog\Tank\sources\balle.cpp:25:39: error: expected primary-expression before 'int'
 void Balle::update(SDL_Surface* ecran,int mat[][25])
                                       ^
Process terminated with status 1 (0 minute(s), 41 second(s))
17 error(s), 5 warning(s) (0 minute(s), 41 second(s))

voici le code:

Code main.cpp :

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#include <SDL/SDL.h>
#include <SDL/SDL_image.h>
#include <stdio.h>
#include <SDL/SDL_rotozoom.h>
#include "balle.h"
int bloc(int x,int y,int mat[][25])
{
    return mat[x/20][y/20];
}
int main(int argc, char *argv[])
{
    SDL_Surface *ecran = NULL,*block = NULL,*ice = NULL,*perso = NULL,*tank = NULL;
    SDL_Rect pos_bloc,pos_perso;
    pos_perso.x=30;
    pos_perso.y=60;
    SDL_Event event;
    int continuer = 1;
    int tempsPrecedent = 0, tempsActuel = 0;
    SDL_Init(SDL_INIT_VIDEO);
    ecran = SDL_SetVideoMode(1000,500, 32, SDL_HWSURFACE | SDL_DOUBLEBUF);
    SDL_WM_SetCaption("Jeu en SDL", NULL);
    tank = IMG_Load("data/perso.png");
    perso=tank;
    block = IMG_Load("data/bloc.png");
    ice = IMG_Load("data/glace.png");
    FILE* fichier = fopen("matrice.txt", "r");
    double px=30,py=60,vx=0,vy=0,an=0;
    int mat[50][25],symb,i,j;
    for(j=0;j<25;j++)
    {
        for(i=0;i<50;i++)
        {
            symb=fgetc(fichier);
            if(symb=='\n')
                symb=fgetc(fichier);
            mat[i][j]=symb;
        }
    }
    SDL_EnableKeyRepeat(10, 10);
    while (continuer)
    {
        SDL_PollEvent(&event); /* On utilise PollEvent et non WaitEvent pour ne pas bloquer le programme */
        switch(event.type)
        {
            case SDL_QUIT:
                continuer = 0;
                break;
        }
        SDL_FillRect(ecran, NULL, SDL_MapRGB(ecran->format, 180,180, 250));
        for(int i=0;i<50;i++)
        {
            for(int j=0;j<25;j++)
            {
                pos_bloc.x=20*i;
                pos_bloc.y=20*j;
                switch(mat[i][j])
                {
                    case '1':
                        SDL_BlitSurface(block, NULL, ecran, &pos_bloc);
                        break;
                    case '2':
                        SDL_BlitSurface(ice, NULL, ecran, &pos_bloc);
                        break;
                }
            }
 
        }
        Uint8 *state=SDL_GetKeyState(NULL);
        if(state[SDLK_q])
            an+=2;
        if(state[SDLK_w])
            an-=2;
        if(state[SDLK_LEFT])
            if(bloc(px-1,py,mat)!='0' || bloc(px-1,py+19,mat)!='0')
                px=20*int((px+10)/20);
            else px-=3;
        if(state[SDLK_RIGHT])
            if(bloc(px+21,py,mat)!='0' || bloc(px+21,py+19,mat)!='0')
                px=20*int((px+10)/20);
            else px+=3;
        if(state[SDLK_UP])
            if(bloc(px,py-1,mat)!='0' || bloc(px+19,py-1,mat)!='0')
                py=20*int((py+10)/20);
            else py-=3;
        if(state[SDLK_DOWN])
            if(bloc(px,py+21,mat)!='0' || bloc(px+19,py+21,mat)!='0')
                py=20*int((py+10)/20);
            else py+=3;
        px+=vx;
        py+=vy;
        perso = rotozoomSurface(tank, an, 1.0, 1);
        pos_perso.y=py+10-perso->h/2;
        pos_perso.x=px+10-perso->w/2;
        SDL_BlitSurface(perso, NULL, ecran, &pos_perso);
        SDL_Flip(ecran);
        tempsActuel = SDL_GetTicks();
        if (tempsActuel - tempsPrecedent > 20)
        {
            tempsPrecedent = tempsActuel;
        }
        else
        {
            SDL_Delay(20 - (tempsActuel - tempsPrecedent));
        }
    }
    SDL_FreeSurface(block);
    SDL_FreeSurface(perso);
    SDL_FreeSurface(ice);
    SDL_Quit();
    return EXIT_SUCCESS;
}

Code balle.h :

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#ifndef DEF_BALLE
#define DEF_BALLE
class Balle
{
    public:
    Balle();
    Balle(double x,double y);
    void update(SDL_Surface* ecran,int mat[][25]);
    private:
    double x;
    double y;
    double vy;
    double vx;
    int d;
    SDL_Surface* balle;
    SDL_Rect pos_balle;
};
#endif

Code balle.cpp :

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#include "balle.h"
using namespace std;
Balle::Balle()
{
    double x=50;
    double y=50;
    double vy=1;
    double vx=1;
    SDL_Surface* balle=IMG_Load("data/balle.png");
    pos_balle.x=this.x;
    pos_balle.y=this.y;
    int d=1000;
}
Balle::Balle(double m_x,double m_y,double m_vx,double m_vy)
{
    double x=m_x;
    double y=m_y;
    double vy=m_vy;
    double vx=m_vx;
    SDL_Surface* balle=IMG_Load("data/balle.png");
    pos_balle.x=x;
    pos_balle.y=y;
    int d=1000;
}
void Balle::update(SDL_Surface* ecran,int mat[][25])
{
 
}

merci a ceux qui peuvent m'aider