TrisSDLv1.0

https://www.dropbox.com/sh/zjwy9ja39actcyo/AABECnjO7kIQzbBNcoPM-zIta?dl=0
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <SDL/SDL.h>
#include <windows.h>
#include <stdbool.h>
#define TRE 3

//The attributes of the screen
const int SCREEN_WIDTH = 640;
const int SCREEN_HEIGHT = 480;
const int SCREEN_BPP = 16;
//le immagini
SDL_Surface* screen = NULL;
SDL_Surface* sfondo = NULL;
SDL_Surface* croce = NULL;
SDL_Surface* palla = NULL;
SDL_Surface* win = NULL;
//gli eventi
SDL_Event event;
//variabili globali del TRIS
int griglia[TRE][TRE]={{0},{0}}; //matrice
int player=1; //giocatore attuale

void init(void)
{   //Start SDL
    SDL_Init( SDL_INIT_EVERYTHING );

    //Set up screen
    screen = SDL_SetVideoMode( SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_BPP, SDL_SWSURFACE );
}

void apply_surface( int x, int y, SDL_Surface* source, SDL_Surface* destination );
void deinit(void);
void mostra(void);
void impostacoordinate(int x,int y);
//prototipi del TRIS
void insert(void);
void cambiaplayer(void);
bool controllowin(void);

int main( int argc, char* args[] )
{
   int turno=0; //indica il turno corrente

   init();

   //carico le immagini
   sfondo = SDL_LoadBMP( "grigliatrisvuota.bmp" );
   croce = SDL_LoadBMP( "croce.bmp" );
   palla = SDL_LoadBMP( "palla.bmp" );
   win = SDL_LoadBMP("win.bmp");
   //inserisco la griglia sullo schermo
   SDL_BlitSurface( sfondo, NULL, screen, NULL );
   SDL_Flip( screen ); //mostro lo schermo
   SDL_Delay(1000); //un secondo di attesa

   for(;(event.type!=SDL_QUIT)&&(turno<9);SDL_Delay(250))
   {
      SDL_PollEvent( &event ); //cattura l'evento

      if( event.type == SDL_KEYDOWN )
      {
         insert();
         mostra();
         cambiaplayer();
         turno++;
         controllowin();
         if(controllowin())turno=9;
      }
      SDL_Flip( screen ); //mostro lo schermo
   }
   SDL_Delay(3000);
   deinit();
   //Quit SDL
   SDL_Quit();
   return 0;
}
void deinit(void)
{
   SDL_FreeSurface( sfondo );
   SDL_FreeSurface( croce );
   SDL_FreeSurface( palla );
}

void apply_surface( int x, int y, SDL_Surface* source, SDL_Surface* destination )
{
    //Make a temporary rectangle to hold the offsets
    SDL_Rect offset;

    //Give the offsets to the rectangle
    offset.x = x;
    offset.y = y;

    //Blit the surface
    SDL_BlitSurface( source, NULL, destination, &offset );
}

void insert(void)
{
   switch(event.key.keysym.sym)
   {
      case SDLK_KP9: if(griglia[2][2]==0) griglia[2][2]=player;
              break;
      case SDLK_KP8: if(griglia[2][1]==0) griglia[2][1]=player;
              break;
      case SDLK_KP7: if(griglia[2][0]==0) griglia[2][0]=player;
              break;
      case SDLK_KP6: if(griglia[1][2]==0) griglia[1][2]=player;
              break;
      case SDLK_KP5: if(griglia[1][1]==0) griglia[1][1]=player;
              break;
      case SDLK_KP4: if(griglia[1][0]==0) griglia[1][0]=player;
              break;
      case SDLK_KP3: if(griglia[0][2]==0) griglia[0][2]=player;
              break;
      case SDLK_KP2: if(griglia[0][1]==0) griglia[0][1]=player;
              break;
      case SDLK_KP1: if(griglia[0][0]==0) griglia[0][0]=player;
              break;
      default: ;
   }
}
void cambiaplayer(void)
{
   if(player==1) player=2;
   else player=1;
}

void mostra(void)
{  int y,x;
   for(y=2;y>=0;y--)
   {
      for(x=0;x<TRE;x++)
      {
         if(griglia[y][x]==player)
            impostacoordinate(x,y);
      }
   }
}

void impostacoordinate(int x,int y)
{
   int riga,colonna;
   switch(x)
   {
      case 0:colonna=0;break;
      case 1:colonna=SCREEN_WIDTH-150*2.75;break;
      case 2:colonna=SCREEN_WIDTH-150;break;
   }
   switch(y)
   {
      case 0:riga=SCREEN_HEIGHT-115;break;
      case 1:riga=SCREEN_HEIGHT-115*2.5;break;
      case 2:riga=0;break;
   }
   if(player==1)apply_surface(colonna,riga,croce,screen);
   if(player==2)apply_surface(colonna,riga,palla,screen);
}

bool controllowin(void)
{  int z;
   for(z=0;z<TRE;z++)
   {
      if((griglia[z][0]==griglia[z][1])&&(griglia[z][1]==griglia[z][2])&&(griglia[z][0]!=0))
      {  apply_surface(0,SCREEN_HEIGHT/2-70,win,screen);
         return true;
      }
      if((griglia[0][z]==griglia[1][z])&&(griglia[1][z]==griglia[2][z])&&(griglia[0][z]!=0))
      {  apply_surface(0,SCREEN_HEIGHT/2-70,win,screen);
         return true;
      }
   }
   if((griglia[0][2]==griglia[1][1])&&(griglia[1][1]==griglia[2][0])&&(griglia[1][1]!=0))
   {  apply_surface(0,SCREEN_HEIGHT/2-70,win,screen);
      return true;
   }
   if((griglia[0][0]==griglia[1][1])&&(griglia[1][1]==griglia[2][2])&&(griglia[1][1]!=0))
   {  apply_surface(0,SCREEN_HEIGHT/2-70,win,screen);
      return true;
   }
   return false;
}