Bonsoir,
J'aimerais inclure mon fichier "tile.h" dans mon fichier "stresso.h".
J'ai procédé par la prédéclaration comme c'est indiqué à la FAQ mais le probleme n'est pas resolu.
Voila l'architecture de mon projet:

1) stresso.cpp :
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#include "include/stresso.h"
#include "include/tile.h"
 
stresso::stresso()
{
 
    //Initialisation des coordonnees
    box.x = 0;
    box.y = 0;
    box.w = 40;
    box.h = 64;
    //Initialisation de la vitesse
    xVel = 0;
    yVel = 0;
    //Initialize the velocity
    //velocity=0;
 
    //les variables d'animation : init
    frame=0;
    status=right;
}
 
void stresso::handle_input()
{
 
 
    //If a key was pressed
    if( event.type == SDL_KEYDOWN )
    {
        //Adjust the velocity
        switch( event.key.keysym.sym )
        {
            case SDLK_UP: yVel -= stresso_HEIGHT/2; break;
            case SDLK_DOWN: yVel += stresso_HEIGHT / 2; break;
            case SDLK_LEFT: xVel -= stresso_WIDTH / 2; break;
            case SDLK_RIGHT: xVel += stresso_WIDTH / 2; break;
        }
    }
    //If a key was released
    else if( event.type == SDL_KEYUP )
    {
        //Adjust the velocity
        switch( event.key.keysym.sym )
        {
            case SDLK_UP: yVel += stresso_HEIGHT/2; break;
            case SDLK_DOWN: yVel -= stresso_HEIGHT / 2; break;
            case SDLK_LEFT: xVel += stresso_WIDTH / 2; break;
            case SDLK_RIGHT: xVel -= stresso_WIDTH / 2; break;
        }
    }
    //If a key was pressed
    /*
    if( event.type == SDL_KEYDOWN )
    {
        //Adjust the velocity
        switch( event.key.keysym.sym )
        {
            case SDLK_UP: yVel -= stresso_HEIGHT / 2; break;
            case SDLK_DOWN: yVel += stresso_HEIGHT / 2; break;
            case SDLK_LEFT: xVel -= stresso_WIDTH / 4; break;
            case SDLK_RIGHT: xVel += stresso_WIDTH / 4; break;
        }
    }
    //If a key was released
    else if( event.type == SDL_KEYUP )
    {
        //Adjust the velocity
        switch( event.key.keysym.sym )
        {
            case SDLK_UP: yVel += stresso_HEIGHT / 2 ;break;
            case SDLK_DOWN: yVel -= stresso_HEIGHT / 2; break;
            case SDLK_LEFT: xVel += stresso_WIDTH / 4; break;
            case SDLK_RIGHT: xVel -= stresso_WIDTH / 4; break;
        }
    }*/
}
//Fonction qui pose probleme !
void stresso::move(tile *tiles[])
{
    //Move the Stresso left or right
    box.x += xVel;
    //printf("\nbox.x = %d\nbox.y = %d\n----------------------\n", box.x, box.y);
 
    //If the dot went too far to the left or right or touched a wall
    if( ( box.x < 0 ) || ( box.x + stresso_WIDTH > LEVEL_WIDTH ) || touches_wall( box, tiles ) )
    {
        //move back
        //printf("\nCheckpoint1\n");
        /*for(int i =0; i<192; i++)
            printf("\ntiles [%d] = %d", i, tiles[i]->get_type());*/
        box.x -= xVel;
    }
 
    //Move the dot up or down
    box.y += yVel;
 
    //If the dot went too far up or down or touched a wall
    if( ( box.y < 0 ) || ( box.y + stresso_WIDTH > LEVEL_HEIGHT ) || touches_wall( box, tiles ) )
    {
        //move back
        //printf("\nCheckpoint2");
        box.y -= yVel;
 
    }
 
    /*if(( box.y+stresso_HEIGHT>LEVEL_HEIGHT) )
        box.y-= yVel;*/
 
}
 
 int stresso::get_box2()
 {
    return box.x ;
 
 }
 
 
void stresso::show()
{
 
    //If stresso is moving left
    if( xVel < 0 )
    {
        //Set the animation to left
        status = left;
 
        //Move to the next frame in the animation
        frame++;
    }
    //If stresso is moving right
    else if( xVel > 0 )
    {
        //Set the animation to right
        status = right;
 
        //Move to the next frame in the animation
        frame++;
    }
 
 
    //If stresso standing
    else
    {
        //Restart the animation
        frame = 0;
    }
 
    //Loop the animation
    if( frame >= 4 )
    {
        frame = 0;
    }
 
    //Show the stick figure
    //perso est la surface de Stresso !
    if( status == right )
    {
        apply_surface( box.x-camera.x, box.y, perso, screen, &clipright[ frame ] );
 
    }
    else if( status == left )
    {
        apply_surface( box.x- camera.x, box.y, perso, screen, &clipleft[ frame ] );
 
    }
}
void stresso::set_camera()
{
    //Center the camera over the stresso
    //Center the camera over the dot
    camera.x = ( box.x + stresso_WIDTH / 2 ) - SCREEN_WIDTH / 2;
    camera.y = ( box.y + stresso_HEIGHT / 2 ) - SCREEN_HEIGHT / 2;
 
    //Keep the camera in bounds.
    if( camera.x < 0 )
    {
        camera.x = 0;
    }
    if( camera.y < 0 )
    {
        camera.y = 0;
    }
    if( camera.x > LEVEL_WIDTH - camera.w )
    {
        camera.x = LEVEL_WIDTH - camera.w;
    }
    if( camera.y > LEVEL_HEIGHT - camera.h )
    {
        camera.y = LEVEL_HEIGHT - camera.h;
    }
}
2)stresso.h :

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#ifndef STRESSO_H
#define STRESSO_H
//The stresso : stresso est le nom attribué au joueur stréssé :p
class tile;
class stresso
{
    private:
    //The X and Y offsets of the stresso
    SDL_Rect box;
 
    //La vitesse du stresso
    int xVel, yVel;
 
    //La fenetre courante
    int frame;
 
    //le statut actuel d'animation
    int status;
 
    public:
    //Initializes the variables
    stresso();
 
    //Moves stresso suivant les tiles
 
    //Takes key presses and adjusts the stresso's velocity
    void handle_input();
    //Shows the stresso on the screen
    void show();
 
    //Sets the camera over the stresso
    void set_camera();
 
    int get_box2();
 
    void move( tile *tiles[] );
 
};
 
#endif // STRESSO_H
3)tile.cpp :

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#include "include/tile.h"
 
tile::tile( int x, int y, int tileType )
{
    //Get the offsets
    box.x = x;
    box.y = y;
 
    //Set the collision box
    box.w = TILE_WIDTH;
    box.h = TILE_HEIGHT;
 
    //Get the tile type
    type = tileType;
}
 
void tile::show()
{
    //If the tile is on screen
    if( check_collision( camera, box ) == true )
    {
        //Show the tile
        apply_surface( box.x - camera.x, box.y - camera.y, tileSheet, screen, &clips[ type ] );
    }
}
 
int tile::get_type()
{
    return type;
}
 
SDL_Rect tile::get_box()
{
    return box;
}

4) tile.h :
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#ifndef TILE_H
#define TILE_H
 
 
//The tile
class tile
{
    private:
    //The attributes of the tile
    SDL_Rect box;
 
    //The tile type
    int type;
 
    public:
    //Initializes the variables
    tile( int x, int y, int tileType );
 
    //Shows the tile
    void show();
 
    //Get the tile type
    int get_type();
 
    //Get the collision box
    SDL_Rect get_box();
};
 
 
#endif // TILE_H
Le probleme se pose a la compilation, le compilateur ne reconnais pas la fonction move( dans stresso.cpp) qui utilise en parametre "tile".
Comment corriger ce probleme svp ?