#include <stdlib.h>
#include <graph.h>
#include <time.h>
#include <stdio.h>
#include "terrain.h"
#include "temps_et_score.h"
#include "serpent.h"
#include "pomme.h"
#define CYCLE 1000000L
#define MAX_LONGUEUR 100 


int main(){
    int rejouer;
    InitialiserGraphique();
    CreerFenetre(350, 100, LARGEUR_FENETRE, HAUTEUR_FENETRE);
    srand(time(NULL));
        do{
            unsigned long suivant;
            unsigned int vitesse_serpent = VITESSE_INITIAL;
            int n = 0, minutes, secondes, score = 0, continuer;
            char texte[20];
            int nbr_pastille = 5, gameover, i, direction = 1, direction_avant = 1, longSerpent = TAILLE_SERPENT_INITIAL, max_longuer = MAX_LONGUEUR;
            Pastille *pomme = (Pastille *) malloc(nbr_pastille * sizeof(Pastille));
            Segment *serpent = (Segment *) malloc(MAX_LONGUEUR * sizeof(Segment));
            if (pomme == NULL || serpent == NULL)
            {
                printf("Erreur d'allocation de m�moire.\n");
                return EXIT_FAILURE;
            }
            rejouer = 2;
            EffacerEcran(CouleurParNom("black"));
            Terrain();
            Creation_Serpent(serpent, longSerpent);
            Afficher_Serpent(serpent, longSerpent, direction);
            Creation_Pastille(NBR_PASTILLE_INITIAL, pomme, longSerpent, serpent);
            Afficher_Pastille(NBR_PASTILLE_INITIAL, pomme);
            do{
                gameover = 2;
                if (longSerpent >= MAX_LONGUEUR){
                    serpent = (Segment*) realloc(serpent,(max_longuer+MAX_LONGUEUR));
                    max_longuer += MAX_LONGUEUR;
                }
                /*Temps ecoul� debut*/
                if (Microsecondes() > suivant){
                    suivant = Microsecondes() + CYCLE;
                    n++;
                    minutes = n / 60;
                    secondes = n % 60;
                    Afficher_Temps(minutes, secondes, texte);
                }
                /*Temps ecoul� fin */
                if (ToucheEnAttente()){
                    switch (Touche()){
                        case XK_Right:
                            direction = 1;
                            break;
                        case XK_Left:
                            direction = -1;
                            break;
                        case XK_Up:
                            direction = 2;
                            break;
                        case XK_Down:
                            direction = -2;
                            break;
                        case XK_space:
                            continuer = 2;
                            Pause(texte, minutes, secondes, score, &continuer);
                            if (continuer == 0){
                                FermerGraphique();
                                return EXIT_SUCCESS;
                            }
                            Afficher_Pastille(NBR_PASTILLE_INITIAL, pomme);
                            Afficher_Serpent(serpent, longSerpent, direction);
                    }
                }
	    	    if (direction==direction_avant*(-1)){
                    direction=direction_avant;
                }else{
                    direction_avant=direction;
                }
                Deplacer_Serpent(&longSerpent, serpent, direction, vitesse_serpent);
                for (i = 0; i < NBR_PASTILLE_INITIAL; i++){
                    /*Mise a zero du score*/
                    ChoisirCouleurDessin(CouleurParNom("white"));
                    sprintf(texte, "Score : %3d", score);
                    EcrireTexte(825, 685, texte, 2);
                    if (serpent[i].x == pomme[i].x && serpent[i].y == pomme[i].y)
                    {
                        longSerpent += 2;
                        Validation_Coordonne( NBR_PASTILLE_INITIAL, pomme, longSerpent, serpent, &pomme[i]);
                        score = score + 5;
                        if (score % 40 == 0 && vitesse_serpent > 10U){
                            vitesse_serpent -= 5U;
                        }
                        Afficher_Pastille(NBR_PASTILLE_INITIAL, pomme);
                        Afficher_Score(score, texte);
                        }
                }
                Contoure_Terrain();
                Mort_Serpent( longSerpent, serpent, score, minutes, secondes, texte, &rejouer, &gameover);
            }while (gameover);
            free(pomme);
            free(serpent);
        }while(rejouer);
    
    FermerGraphique();
    return EXIT_SUCCESS;
}