game.c

/*
** game.c for  in /home/death/ETNA/prog_C/Xmas Project/Snake/jnih_s
**
** Made by Sami Jnih
** Login   <[email protected]>
**
** Started on  Tue Dec 24 23:09:00 2013 Sami Jnih
** Last update Wed Jan  1 02:32:05 2014 Sami Jnih
*/

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>

#include <SDL/SDL.h>

#include <SDL/SDL_image.h>
#include </usr/local/lib/fmod.h>

#include "snake.h"

void    game(SDL_Event event, SDL_Surface *screen, SDL_Surface *snake, SDL_Surface *background, SDL_Surface *gameover_continuer, SDL_Surface *gameover_quitter)
{
  SDL_Rect positionBackground, positionSnake;

  int game, snake_xval, snake_yval, tempsPrecedent, tempsActuel, pos;
  pos = 0;
  game = 1;
  tempsPrecedent = 0;
  tempsActuel = 0;
  snake_xval = 0;
  snake_yval = 0;

  positionBackground.x = 0;
  positionBackground.y = 0;

  positionSnake.x = 400 - 25;
  positionSnake.y = 320 - 25;

  background = IMG_Load("images/background.jpg");
  snake = IMG_Load("images/curseur.png");

  SDL_BlitSurface(background, NULL, screen, &positionBackground);

  while (game)
    {
      SDL_PollEvent(&event);
      //printf("positionSnake.x : %d\npositionSnake.y : %d\n", positionSnake.x, positionSnake.y);
      if (check_pos(game, positionSnake) == 0)
    {
      game = 0;
      gameover_menu(gameover_continuer, gameover_quitter, screen, event, snake, background);
    }
      tempsActuel = SDL_GetTicks();
      switch(event.type)
        {
        case SDL_QUIT:
          game = 0;
          break;
        case SDL_KEYDOWN:
          if (event.key.keysym.sym == SDLK_ESCAPE)
            {
              game = 0;
              printf("Vous quittez le jeu.\n");
        }
      else if (event.key.keysym.sym == SDLK_UP)
        pos = 1;
      else if (event.key.keysym.sym == SDLK_DOWN)
        pos = 2;
      else if (event.key.keysym.sym == SDLK_RIGHT)
        pos = 3;
      else if (event.key.keysym.sym == SDLK_LEFT)
        pos = 4;
      break;
    }
      if (tempsActuel - tempsPrecedent > 10)
    {
      switch (pos)
        {
        case 1:
          positionSnake.y -= 3;
          break;
        case 2:
          positionSnake.y += 3;
          break;
        case 3:
          positionSnake.x += 3;
          break;
        case 4:
          positionSnake.x -= 3;
          break;
        }
      tempsPrecedent = tempsActuel;
    }
      else
    SDL_Delay(10 - (tempsActuel - tempsPrecedent));
      SDL_BlitSurface(background, NULL, screen, &positionBackground);
      SDL_BlitSurface(snake, NULL, screen, &positionSnake);
      SDL_Flip(screen);
    }
}