elefantes/screen.c

#include <stdlib.h>
#include <curses.h>
#include "defs.h"

#define ELEFANTES 8 

double distancia(struct coord c, struct coord e);
struct coord fuxir(struct coord c, struct coord e);

void cuadra(WINDOW * win, int width, int height){
    int medioX = width/2;
    int medioY = height/2;

    int anchoCaja = 5;
    int altoCaja = 2; 

    int bordeL = medioX - anchoCaja;
    int bordeR = medioX + anchoCaja;
    int bordeU = medioY - altoCaja;
    int bordeD = medioY + altoCaja;

    /* bordesuperior */
    for(int i = bordeL; i <= bordeR; i++){
        mvwprintw(win, bordeU, i, "*");
    }
    /* borde inferior */
    for(int i = bordeL; i <= bordeR; i++){
        mvwprintw(win, bordeD, i, "*");
    }
    /* borde izquierdo */
    for(int i = bordeU; i <= bordeD; i++){
        mvwprintw(win, i, bordeL, "*");
    }
    /* borde dereito */
    for(int i = bordeU; i <= bordeD; i++){
        mvwprintw(win, i, bordeR, "*");
    }
    /* porta */
    mvwprintw(win, height/2+altoCaja, width/2, " ");
    mvwprintw(win, height/2+altoCaja, width/2-1, " ");
    mvwprintw(win, height/2+altoCaja, width/2+1, " ");

    wrefresh(win);
}

void generarElefantes(struct coord *buff){
    for(int i = 0; i < ELEFANTES; ++i) {
        int nMax=40;
        int nMin=10;
        int rX = rand() % ((nMax+1)-nMin) + nMin;
        int rY = rand() % ((nMax+1)-nMin) + nMin;

        struct coord elefante = {rX+2,rY+2};
        buff[i] = elefante;
    }
}

int screen() {
    initscr();
    noecho();
    curs_set(0); //cursor invisible

    int height, width, start_y, start_x;
    height = 40;
    width = 80;
    start_y = 0;
    start_x = 0;

    WINDOW * win = newwin(height, width, start_y, start_x);
    keypad(win, TRUE); //para ter as flechas
    refresh();

    box(win, 0, 0);
    cuadra(win, width, height);

    struct coord cazador = {height/3,width/2};
    mvwprintw(win, cazador.x, cazador.y, "^");

    struct coord elefantes[ELEFANTES] = {0};
    generarElefantes(elefantes);

    for(int i = 0; i < ELEFANTES; i++){
        mvwprintw(win, elefantes[i].x, elefantes[i].y, "?");
    }

    while(true){
        int c = wgetch(win);
        switch(c){
            case KEY_UP:
                /* mvwprintw(win, 1, 1, "up"); */
                if (mvwinch(win, cazador.x-1, cazador.y) == ' '){
                    mvwprintw(win, cazador.x, cazador.y, " ");
                    cazador.x = cazador.x - 1;
                    mvwprintw(win, cazador.x, cazador.y, "^");
                    wrefresh(win);
                }
                break;
            case KEY_DOWN:
                /* mvwprintw(win, 1, 1, "down"); */
                if (mvwinch(win, cazador.x+1, cazador.y) == ' '){
                    mvwprintw(win, cazador.x, cazador.y, " ");
                    cazador.x = cazador.x + 1;
                    mvwprintw(win, cazador.x, cazador.y, "^");
                    wrefresh(win);
                }
                break;
            case KEY_RIGHT:
                /* mvwprintw(win, 1, 1, "right"); */
                if (mvwinch(win, cazador.x, cazador.y+1) == ' '){
                    mvwprintw(win, cazador.x, cazador.y, " ");
                    cazador.y = cazador.y + 1;
                    mvwprintw(win, cazador.x, cazador.y, "^");
                    wrefresh(win);
                }
                break;
            case KEY_LEFT:
                /* mvwprintw(win, 1, 1, "left"); */
                if (mvwinch(win, cazador.x, cazador.y-1) == ' '){
                    mvwprintw(win, cazador.x, cazador.y, " ");
                    cazador.y = cazador.y - 1;
                    mvwprintw(win, cazador.x, cazador.y, "^");
                    wrefresh(win);
                }
                break;
        }

        // IA :D        
        for(int i = 0; i < ELEFANTES; i++){
            struct coord elefante = elefantes[i];

            double d = distancia(cazador, elefante);
            if (d < 3) {
                struct coord nova;
                nova = fuxir(cazador, elefante);

                if (mvwinch(win, nova.x, nova.y) == ' '){
                    mvwprintw(win, elefante.x, elefante.y, " ");
                    elefante = nova;
                    elefantes[i] = nova; //garda no array a posicion deste elefante
                    mvwprintw(win, elefante.x, elefante.y, "?");
                    wrefresh(win);
                }
            }
        }

      
    }

    endwin(); // dealocate memory and end ncurses

    return 0;  
}