main.c

/************** MAIN ***************/


int main(int argc, char** argv) {
    WorldGame world;
    int level = 1; // Level of the game

    /* SDL initialization */
    if(-1 == SDL_Init(SDL_INIT_VIDEO)) {
        fprintf(stderr, "Impossible d'initialiser la SDL. Fin du programme.\n");
        return EXIT_FAILURE;
    }

    /* Window opening and OpenGL context creation */
    if(NULL == SDL_SetVideoMode(WINDOW_WIDTH, WINDOW_HEIGHT, BIT_PER_PIXEL, SDL_OPENGL | SDL_GL_DOUBLEBUFFER | SDL_RESIZABLE)) {
        fprintf(stderr, "Impossible d'ouvrir la fenetre. Fin du programme.\n");
        return EXIT_FAILURE;
    }
    /* Name of the window */
    SDL_WM_SetCaption("Egypt of the future", NULL);

    resizeViewport(WINDOW_WIDTH, WINDOW_HEIGHT);

    int loop = 1;
    glClearColor(0, 0, 0, 1.0);

    /* Background loading */
    Background bg1;
    Background bg2;
    float scrollSpeed = 0.001; /* Backgroundspeed */
    bg1 = loadBG(scrollSpeed, 0);
    bg2 = loadBG(scrollSpeed, 2);
    SDL_Surface *imgBg1 = IMG_Load("./img/fds/niv1.png");
    SDL_Surface *imgBg2 = IMG_Load("./img/fds/niv1bis.png");
    if(imgBg1 == NULL || imgBg2 == NULL){
        printf("Error at loading BG image\n");
        exit(1);
    }
    GLuint idBg1, idBg2;
    createImg(&idBg1, imgBg1);
    createImg(&idBg2, imgBg2);
    bg1.textureID = idBg1;
    bg2.textureID = idBg2;

    /* Ship loading */
    Ship ship;
    int move = 0; /* Ship movement by default */
    ship = loadShip();

	SDL_Surface *imgShip = IMG_Load("./img/elts/ship.png");
    if(imgShip == NULL){
        printf("Error at loading SHIP image\n");
        exit(1);
    }
	GLuint idShip;
	createImgAlpha(&idShip, imgShip);
	ship.textureID = idShip;

	/* Arrow loading */
    SDL_Surface *imgArrow = IMG_Load("./img/elts/arrow.png");
    if(imgArrow == NULL){
        printf("Error at loading ARROW image\n");
        exit(1);
    }
    /* Image loading */
    GLuint idArrow;
    glGenTextures(1, &(idArrow));
    createImgAlpha(&idArrow, imgArrow);

    /* Elements ppm initalization */
    ListeElement bonus = NULL;
    ListeElement mobs = NULL;
    ListeElement obstacles = NULL;
    ListeElement keys = NULL;
    float speedElement = 0.0;
    pushElements(&bonus, &mobs, &obstacles, &keys, level);
    world.bonus = bonus;
    world.mobs = mobs;
    world.obstacles = obstacles;
    world.keys = keys;

    world.ships = ship;

	glEnable(GL_BLEND);

    /*********** LOOP **********/

    while(loop) {

        Uint32 startTime = SDL_GetTicks();

        glClear(GL_COLOR_BUFFER_BIT);
        speedElement+=0.4; // 0.15 de base

        /* Drawing */
        moveBackground(&bg1, 1);
        moveBackground(&bg2, 1);
        drawBG(&bg1, 1, 1);
        drawBG(&bg2, 1, 1);
        drawShip(&ship, 0.11/1.2, 0.135/1.2, move);
        drawListElements(bonus, speedElement);
	    drawListElements(mobs,speedElement);
	    drawListElements(obstacles,speedElement);
	    drawListElements(keys, speedElement);
	   // printf("%f %f %f %f\n", ship.bbox[0], ship.bbox[1], ship.bbox[2], ship.bbox[3]);

        SDL_Event e;
        while(SDL_PollEvent(&e)) {

            switch(e.type) {

                case SDL_QUIT:
                    loop = 0;
                    break;

                /* A REVOIR PRBL DE RESIZE (CORRECTION DU TROP GRAND) */
                 case SDL_VIDEORESIZE:
                    if(e.resize.w > WINDOW_WIDTH || WINDOW_HEIGHT < e.resize.h){
                        resizeViewport(WINDOW_WIDTH,WINDOW_HEIGHT);
                        glClear(GL_COLOR_BUFFER_BIT);
                        SDL_GL_SwapBuffers();
                    }
                    break;

                case SDL_KEYDOWN:
                    switch(e.key.keysym.sym) {
                    printf("Keydown : %c\n", e.key.keysym.sym);
                        case SDLK_q:
                            loop = 0;
                            break;
                        case SDLK_ESCAPE:
                            /* ABANDON */
                            loop = 0;
                            break;
                        case SDLK_UP:
                            /* GO UP */
                            printf("UP\n");
                            move = 1;
                            break;
                        case SDLK_DOWN:
                            /* GO DOWN */
                            printf("DOWN\n");
                            move = -1;
                            break;
                        case SDLK_SPACE:
                            /* SHOOT */
                            printf("SHOOT\n");
                            /* Fill the arrowlist into the ship structure */
                            pushArrow(&ship, idArrow);
                            break;
                        default:
                            move = 0;
                            break;
                    }
                    break;

                case SDL_KEYUP:
                    if(e.key.keysym.sym == SDLK_DOWN || e.key.keysym.sym == SDLK_UP){
                        move = 0;
                    }
                    break;

                default:
                    break;
                }
            }

        collisionTest(&world);
        /* If move has changed */
        if(move != 0){
           moveShip(move, &world, &ship);
        }

        /* When space touch is down -> ship.lstA is filled */
        while(ship.lstA != NULL){
            drawArrow(&(*ship.lstA), 0.04/1.2, 0.04/1.2);
            if (moveArrow(&(*ship.lstA)) == 0){
                deleteArrow(&ship, ship.lstA);
            }
        }

        /* No more ship life */
        if(ship.nb_life == 0){
        	printf("GAME OVER\n");
        	loop = 0;
        }
        SDL_GL_SwapBuffers();
        Uint32 elapsedTime = SDL_GetTicks() - startTime;
        if(elapsedTime < FRAMERATE_MILLISECONDS) {
            SDL_Delay(FRAMERATE_MILLISECONDS - elapsedTime);
        }
    }

    /* Free memory */
    SDL_FreeSurface(imgShip);
    SDL_FreeSurface(imgBg1);
    SDL_FreeSurface(imgBg2);
    //glDeleteTextures(1, &texture3);

    SDL_Quit();

    return EXIT_SUCCESS;
}