Revision 373933383061 () - Diff

Link to this snippet: https://friendpaste.com/7IEnuOZ75mK7RAcEDOvjke
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#include <stdio.h>
#include <stdlib.h>
#include <SDL.h>
#include "main.h"
#include <string.h>
#define TAILLEMAX 2000
enum {BAS, DROITE, HAUT, GAUCHE};

int main(int argc, char* argv[])
{
SDL_Surface *ecran, *serpent, *boum, *tete[4];
char titre[20] = "Snake";

demarreSdl(&ecran, titre);

initialise(ecran, &serpent, &boum, tete);

evenements(ecran, serpent, boum, tete);

fermeSdl(serpent, boum);
return 0;
}

void demarreSdl(SDL_Surface **ecran, char titre[])
{
if(SDL_Init(SDL_INIT_VIDEO) == -1)
{
fprintf(stderr, "Erreur d'initialisation de la SDL : %s\n", SDL_GetError()); // Ecriture de l'erreur
exit(EXIT_FAILURE); // On quitte le programme
}
SDL_WM_SetIcon(SDL_LoadBMP("ico.bmp"), NULL);
*ecran = SDL_SetVideoMode(640, 480, 32, SDL_HWSURFACE | SDL_RESIZABLE | SDL_DOUBLEBUF);
if(*ecran == NULL)
{
fprintf(stderr, "Impossible de charger le mode vidéo: %s\n", SDL_GetError());
}
SDL_WM_SetCaption(titre, NULL);
SDL_EnableKeyRepeat(1, 1);
}

void fermeSdl(SDL_Surface *serpent, SDL_Surface *boum)
{
SDL_FreeSurface(serpent);
SDL_FreeSurface(boum);
SDL_Quit();
}

void evenements(SDL_Surface *ecran, SDL_Surface *serpent, SDL_Surface *boum, SDL_Surface *tete[])
{
int continuer =1, direction=BAS, taille=5, i=0;
SDL_Event evenement;
SDL_Rect positionSerpent[TAILLEMAX];
initialiseSerpent(positionSerpent, serpent, ecran, taille);
i=100;
while (continuer)
{
SDL_FillRect(ecran, NULL, SDL_MapRGB(ecran->format, 2, 100, 40));

blitteSerpent(serpent, ecran, positionSerpent, taille, direction, tete);
SDL_Flip(ecran);

if(i==100)
{
decalePositions(positionSerpent, taille);
avanceSerpent(serpent, positionSerpent, direction);
i=0;
}
else
{
i++;
}

if(SDL_PollEvent(&evenement))
{
switch(evenement.type)
{
case SDL_KEYDOWN:
switch(evenement.key.keysym.sym)
{
case SDLK_RIGHT:
if(direction != GAUCHE)
direction = DROITE;
break;
case SDLK_LEFT:
if(direction != DROITE)
direction = GAUCHE;
break;
case SDLK_UP:
if(direction != BAS)
direction = HAUT;
break;
case SDLK_DOWN:
if(direction != HAUT)
direction = BAS;
break;
case SDLK_PLUS:
case SDLK_p:
if(taille<TAILLEMAX)
taille++;
break;
case SDLK_MINUS:
case SDLK_m:
if(taille>0)
taille--;
break;
case SDLK_ESCAPE:
continuer = 0;
break;
default:
break;
}
break;
case SDL_QUIT:
continuer =0;
break;
default: break;
}
}

if(cogne(positionSerpent, ecran, taille))
{
perdu(boum, ecran, positionSerpent);
continuer =0;
}
}
}

void initialise(SDL_Surface *ecran, SDL_Surface **serpent, SDL_Surface **boum, SDL_Surface *tete[])
{
int i=0;
char nom[10];
SDL_FillRect(ecran, NULL, SDL_MapRGB(ecran->format, 2, 100, 40));
*serpent = SDL_LoadBMP("serpent.bmp");
*boum = SDL_LoadBMP("boum.bmp");
for(i=0; i<4; i++)
{
sprintf(nom, "tete%d.bmp", i);
tete[i]= SDL_LoadBMP(nom);
}
}

void initialiseSerpent(SDL_Rect positionSerpent[], SDL_Surface *serpent, SDL_Surface *ecran, int taille)
{
int i=0;
for(i=0; i<TAILLEMAX; i++)
{
positionSerpent[i].x = ((ecran->w)/2)-((serpent->w)/2);
positionSerpent[i].y = ((ecran->h/2)-(serpent->h/2));
}
}

void blitteSerpent(SDL_Surface *serpent, SDL_Surface *ecran, SDL_Rect positionSerpent[], int taille, int direction, SDL_Surface *tete[])
{
int i;
SDL_Rect positionTete;
positionTete.x = positionSerpent[0].x;
positionTete.y = positionSerpent[0].y;
switch(direction)
{
case BAS:
positionTete.x = positionSerpent[0].x+tete[0]->w-serpent->w;
SDL_BlitSurface(tete[0], NULL, ecran, &positionTete);
break;
case DROITE:
positionTete.y = positionSerpent[0].y+tete[1]->h-serpent->h;
SDL_BlitSurface(tete[1], NULL, ecran, &positionTete);
break;
case HAUT:
positionTete.y = positionSerpent[0].y-tete[2]->h+serpent->h;
SDL_BlitSurface(tete[2], NULL, ecran, &positionTete);
break;
case GAUCHE:
positionTete.x = positionSerpent[0].x-tete[3]->w+serpent->w;
SDL_BlitSurface(tete[3], NULL, ecran, &positionTete);
break;
}
for(i=1; i<taille; i++)
{
SDL_BlitSurface(serpent, NULL, ecran, &positionSerpent[i]);
}
}

void decalePositions(SDL_Rect positionSerpent[], int taille)
{
int i;
for(i=1; i<TAILLEMAX; i++)
{
positionSerpent[TAILLEMAX-i].x = positionSerpent[TAILLEMAX-i-1].x;
positionSerpent[TAILLEMAX-i].y = positionSerpent[TAILLEMAX-i-1].y;
}
}

void avanceSerpent(SDL_Surface *serpent, SDL_Rect positionSerpent[], int direction)
{
switch(direction)
{
case BAS:
positionSerpent[0].y+=serpent->h+1;
break;
case DROITE:
positionSerpent[0].x+=serpent->w+1;
break;
case HAUT:
positionSerpent[0].y-=serpent->h+1;
break;
case GAUCHE:
positionSerpent[0].x-=serpent->w+1;
break;
}
}

int cogne(SDL_Rect positionSerpent[], SDL_Surface *ecran, int taille)
{
if(positionSerpent[0].x <0 || positionSerpent[0].x >= ecran->w || positionSerpent[0].y<0 || positionSerpent[0].y >= ecran->h)
{
return 1;
}
else if(surSerpent(positionSerpent, taille))
{
return 1;
}
else
{
return 0;
}
}

int surSerpent(SDL_Rect positionSerpent[], int taille)
{
int resultat=0, i;
for(i=1; i<taille; i++)
{
if(positionSerpent[0].x == positionSerpent[i].x && positionSerpent[0].y == positionSerpent[i].y)
{
resultat = 1;
}
}
return resultat;
}

void perdu(SDL_Surface *boum, SDL_Surface *ecran, SDL_Rect positionSerpent[])
{
SDL_Rect position;
printf("Out !!%d\n", positionSerpent[0].x);
position.x=ecran->w/2-boum->w/2;
position.y=ecran->h/2-boum->h/2;
printf("%d, %d:%d", SDL_BlitSurface(boum, NULL, ecran, &position), position.x, position.y);
}