Life/Life/menu.c

//
//  menu.c
//  Life
//
//  Created by Benoit Sida on 2014-06-13.
//  Copyright (c) 2014 Benoit Sida. All rights reserved.
//

#include <stdio.h>
#include "constante.h"
#include "menu.h"

static void eventChoice(int* choice, int* running, int* current);

int menu(SDL_Window *ecran, SDL_Surface *screen)
{
    int running = 1, choice = 0, current = 1;
    SDL_Rect select, position, element1 = {4,7}, element2={5,9};
    SDL_Surface *menu = NULL, *arrow = NULL, *wall = NULL;
    menu = IMG_Load("sprites/menu.png");
    arrow = IMG_Load("sprites/arrow.png");
    wall = IMG_Load("sprites/wall.png");
    while (running) {
        position.x = position.y = 0;
        SDL_BlitSurface(wall, NULL, screen, &position);
        SDL_BlitSurface(menu, NULL, screen, &position); // Affiche le menu
        (current == 1) ? (select.x = element1.x * TAILLE_BLOC) : (select.x = element2.x * TAILLE_BLOC);
        (current == 1) ? (select.y = element1.y * TAILLE_BLOC) : (select.y = element2.y * TAILLE_BLOC);
        SDL_BlitSurface(arrow, NULL, screen, &select);
        SDL_UpdateWindowSurface(ecran);
        eventChoice(&choice, &running, &current);
    }
    return choice;
}

static void eventChoice(int* choice, int* running, int* current)
{
    SDL_Event event;
    SDL_WaitEvent(&event);
    switch (event.type){
        case SDL_QUIT:
            exit(EXIT_SUCCESS);
            break;
        case SDL_KEYDOWN:
            switch (event.key.keysym.sym) {
                case SDLK_ESCAPE:
                    exit(EXIT_SUCCESS);
                    break;
                case SDLK_1:
                    *choice = 1;
                    running = 0;
                    break;
                case SDLK_2:
                    *choice = 2;
                    running = 0;
                    break;
                case SDLK_UP:
                    *current = 1;
                    break;
                case SDLK_DOWN:
                    *current = 2;
                    break;
                case SDLK_RETURN:
                    *running = 0;
                    *choice = *current;
                    break;
                    
            }
            break;
    }
}