143 lines
2.3 KiB
C
143 lines
2.3 KiB
C
#ifndef GAMELOGIC_H
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#define GAMELOGIC_H
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#include <stdio.h>
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#include <stdint.h>
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#include <ncurses.h>
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#define N 3
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#define ROWS N
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#define COLS N
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#define DIAGS 2
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#define TOTAL_SQUARES ROWS*COLS
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#define DOF 2
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typedef enum{OPEN, X, O} squarestate;
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enum turn {X_TURN, O_TURN};
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typedef struct position_t{
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uint8_t row;
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uint8_t col;
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}position_t;
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// point tracker. make any of these = N and win
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int8_t pts[ROWS+COLS+DIAGS];
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int round_counter;
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position_t cpos;
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squarestate boardstate[ROWS * COLS];
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enum turn currturn;
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void print_boardstate(){
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for( int y = 0; y < ROWS; y++ ){
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for( int x = 0; x < COLS; x++ ){
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printf("|%c|",
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(boardstate[COLS*y + x] == X) ? 'X' :
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(boardstate[COLS*y + x] == O) ? 'O' : '_');
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}
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printf("\n");
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}
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}
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void init_gamestate(){
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// init cursor pos to 0,0
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cpos = (position_t){0,0};
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currturn = X_TURN;
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round_counter = 0;
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for( int i = 0; i < TOTAL_SQUARES; i++ ){
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boardstate[i] = OPEN;
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}
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}
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int is_game_over(){
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for (int i = 0; i < ROWS + COLS + DIAGS; i++){
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if ( pts[i] == N ){
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printf("X won\n");
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return 1;
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}else if ( pts[i] == -N ){
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printf("O won\n");
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return 1;
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}
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}
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if (round_counter == TOTAL_SQUARES){
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printf("Stalemate\n");
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return 1;
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}
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return 0;
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}
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void add_point(){
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int val = (currturn == X_TURN) ? 1 : -1;
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pts[cpos.row] += val;
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pts[ROWS + cpos.col] += val;
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if ( cpos.row == cpos.col){
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pts[ROWS + COLS + 0] += val;
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}
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if( (cpos.row + cpos.col) == (N - 1)){
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pts[ROWS + COLS + 1] += val;
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}
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}
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void update_boardstate(){
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int idx = COLS * cpos.row + cpos.col;
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if(boardstate[idx] == OPEN){
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if(currturn == X_TURN){
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boardstate[idx] = X;
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}
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else if(currturn == O_TURN){
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boardstate[idx] = O;
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}
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add_point();
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round_counter++;
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currturn = !currturn;
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}
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print_boardstate();
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}
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void update_gamestate(char input){
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switch(input){
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case('w'):
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if(cpos.row > 0){
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cpos.row--;
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}
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break;
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case('s'):
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if(cpos.row < (ROWS - 1)){
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cpos.row++;
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}
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break;
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case('a'):
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if(cpos.col > 0){
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cpos.col--;
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}
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break;
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case('d'):
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if(cpos.col < (COLS - 1)){
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cpos.col++;
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}
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break;
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case('e'):
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update_boardstate();
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break;
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}
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printf("cpos.row = %d, cpos.col = %d,", cpos.row, cpos.col);
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printf(" Turn: %d\n", currturn);
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}
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void main_loop(){
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int input = 0;
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while(1){
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while((input = getchar()) == '\n');
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update_gamestate(input);
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if (is_game_over()) break;
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}
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}
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#endif
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