From 84ae02ac8e2d5a3617516d61369013b6f718c1b7 Mon Sep 17 00:00:00 2001
From: Denis Landa <denis.landa@student.tuke.sk>
Date: Sun, 8 Jun 2025 12:11:19 +0200
Subject: [PATCH] 2

---
 du8/Makefile  |  19 +++++
 du8/README.md |  23 ++++++
 du8/game.c    |  95 ++++++++++++++++++++++++
 du8/game.h    |  20 +++++
 du8/game.o    | Bin 0 -> 8712 bytes
 du8/main.c    |   9 +++
 du8/main.o    | Bin 0 -> 4528 bytes
 du8/world.c   | 198 ++++++++++++++++++++++++++++++++++++++++++++++++++
 du8/world.h   | 113 ++++++++++++++++++++++++++++
 du8/world.o   | Bin 0 -> 18560 bytes
 10 files changed, 477 insertions(+)
 create mode 100644 du8/Makefile
 create mode 100644 du8/README.md
 create mode 100644 du8/game.c
 create mode 100644 du8/game.h
 create mode 100644 du8/game.o
 create mode 100644 du8/main.c
 create mode 100644 du8/main.o
 create mode 100644 du8/world.c
 create mode 100644 du8/world.h
 create mode 100644 du8/world.o

diff --git a/du8/Makefile b/du8/Makefile
new file mode 100644
index 0000000..4633fdf
--- /dev/null
+++ b/du8/Makefile
@@ -0,0 +1,19 @@
+CC = gcc
+CFLAGS = -Wall -Wextra -g
+
+all: piskorky
+
+piskorky: main.o game.o world.o
+	$(CC) $(CFLAGS) -o piskorky main.o game.o world.o -lncurses
+
+main.o: main.c game.h world.h
+	$(CC) $(CFLAGS) -c main.c
+
+game.o: game.c game.h world.h
+	$(CC) $(CFLAGS) -c game.c
+
+world.o: world.c world.h
+	$(CC) $(CFLAGS) -c world.c
+
+clean:
+	rm -f *.o piskorky
\ No newline at end of file
diff --git a/du8/README.md b/du8/README.md
new file mode 100644
index 0000000..13411c1
--- /dev/null
+++ b/du8/README.md
@@ -0,0 +1,23 @@
+# Piškvorky (Tic-Tac-Toe) – Terminalová hra s knižnicou `world`
+
+## 🕹️ Ako hrať
+- Ovládanie: `WASD` na pohyb, `medzerník` na položenie znaku.
+- Hráči sa striedajú ako X a O.
+- Hra končí výhrou jedného hráča alebo remízou.
+
+## 🛠️ Preklad a spustenie
+```bash
+make
+./piskorky
+```
+
+## 🧠 Kód – Štruktúry a funkcie
+- `GameState`: štruktúra uchovávajúca stav hry (pole, hráč, kurzor, výherca).
+- `game_init`: inicializuje hru.
+- `draw`: vykresľuje mriežku a obsah.
+- `key_handler`: reaguje na stlačené klávesy.
+- `update`: nepoužíva sa (hra nie je časovo riadená).
+
+## 📚 Zdroje
+- Príklady z predmetu ZAP.
+- Dokumentácia k `ncurses` a `world.h`.
\ No newline at end of file
diff --git a/du8/game.c b/du8/game.c
new file mode 100644
index 0000000..fc49341
--- /dev/null
+++ b/du8/game.c
@@ -0,0 +1,95 @@
+#include "game.h"
+#include "world.h"
+
+void game_init(GameState *game) {
+    for (int y = 0; y < SIZE; ++y)
+        for (int x = 0; x < SIZE; ++x)
+            game->board[y][x] = EMPTY;
+    game->current_player = X;
+    game->cursor_x = 0;
+    game->cursor_y = 0;
+    game->game_over = 0;
+    game->winner = EMPTY;
+}
+
+void draw(void *state) {
+    GameState *game = (GameState *)state;
+    world_clear();
+    for (int y = 0; y < SIZE; ++y) {
+        for (int x = 0; x < SIZE; ++x) {
+            world_set_color((x == game->cursor_x && y == game->cursor_y) ? 2 : 1);
+            char *symbol = "[ ]";
+            if (game->board[y][x] == X) symbol = "[X]";
+            else if (game->board[y][x] == O) symbol = "[O]";
+            world_draw_string(x * 4, y * 2, symbol);
+        }
+    }
+    if (game->game_over) {
+        world_set_color(3);
+        world_draw_string(0, SIZE * 2 + 1, game->winner == EMPTY ? "Remiza!" :
+            (game->winner == X ? "Vyhral X!" : "Vyhral O!"));
+    }
+}
+
+void check_winner(GameState *game) {
+    for (int i = 0; i < SIZE; ++i) {
+        if (game->board[i][0] != EMPTY &&
+            game->board[i][0] == game->board[i][1] &&
+            game->board[i][1] == game->board[i][2]) {
+            game->winner = game->board[i][0];
+            game->game_over = 1;
+            return;
+        }
+        if (game->board[0][i] != EMPTY &&
+            game->board[0][i] == game->board[1][i] &&
+            game->board[1][i] == game->board[2][i]) {
+            game->winner = game->board[0][i];
+            game->game_over = 1;
+            return;
+        }
+    }
+    if (game->board[0][0] != EMPTY &&
+        game->board[0][0] == game->board[1][1] &&
+        game->board[1][1] == game->board[2][2]) {
+        game->winner = game->board[0][0];
+        game->game_over = 1;
+        return;
+    }
+    if (game->board[0][2] != EMPTY &&
+        game->board[0][2] == game->board[1][1] &&
+        game->board[1][1] == game->board[2][0]) {
+        game->winner = game->board[0][2];
+        game->game_over = 1;
+        return;
+    }
+    int full = 1;
+    for (int y = 0; y < SIZE; ++y)
+        for (int x = 0; x < SIZE; ++x)
+            if (game->board[y][x] == EMPTY)
+                full = 0;
+    if (full) {
+        game->game_over = 1;
+        game->winner = EMPTY;
+    }
+}
+
+void key_handler(int key, void *state) {
+    GameState *game = (GameState *)state;
+    if (game->game_over) return;
+    switch (key) {
+        case 'w': if (game->cursor_y > 0) game->cursor_y--; break;
+        case 's': if (game->cursor_y < SIZE - 1) game->cursor_y++; break;
+        case 'a': if (game->cursor_x > 0) game->cursor_x--; break;
+        case 'd': if (game->cursor_x < SIZE - 1) game->cursor_x++; break;
+        case ' ': {
+            if (game->board[game->cursor_y][game->cursor_x] == EMPTY) {
+                game->board[game->cursor_y][game->cursor_x] = game->current_player;
+                check_winner(game);
+                if (!game->game_over)
+                    game->current_player = (game->current_player == X) ? O : X;
+            }
+        } break;
+    }
+}
+
+void update(void *state) { }
\ No newline at end of file
diff --git a/du8/game.h b/du8/game.h
new file mode 100644
index 0000000..4182c5a
--- /dev/null
+++ b/du8/game.h
@@ -0,0 +1,20 @@
+#ifndef GAME_H
+#define GAME_H
+
+#define SIZE 3
+
+typedef enum { EMPTY, X, O } Cell;
+typedef struct {
+    Cell board[SIZE][SIZE];
+    int current_player;
+    int cursor_x, cursor_y;
+    int game_over;
+    Cell winner;
+} GameState;
+
+void game_init(GameState *game);
+void draw(void *state);
+void update(void *state);
+void key_handler(int key, void *state);
+
+#endif
\ No newline at end of file
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new file mode 100644
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diff --git a/du8/main.c b/du8/main.c
new file mode 100644
index 0000000..d8c2050
--- /dev/null
+++ b/du8/main.c
@@ -0,0 +1,9 @@
+#include "world.h"
+#include "game.h"
+
+int main() {
+    GameState game;
+    game_init(&game);
+    world_init(&game, draw, key_handler, update);
+    return 0;
+}
\ No newline at end of file
diff --git a/du8/main.o b/du8/main.o
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diff --git a/du8/world.c b/du8/world.c
new file mode 100644
index 0000000..a45c109
--- /dev/null
+++ b/du8/world.c
@@ -0,0 +1,198 @@
+#include "world.h"
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+int TIMEOUT;
+
+void abort_game(const char* message){
+    endwin();
+    puts(message);
+    exit(1);
+}
+
+void check_bounds(const char* source,int x, int y){
+    char msg[200];
+    if (x < 0 || x >= COLS){
+        sprintf(msg,"%s:: width %d is out of bounds (0,%d)",source,x,COLS);
+        abort_game(msg);
+    }
+    if (y < 0 || y >= LINES){
+        sprintf(msg,"%s:: height %d is out of bounds (0,%d)",source,y,LINES);
+        abort_game(msg);
+    }
+}
+
+void clear_screen(){
+    // Clear screen
+    mvaddch(0,0,' ');
+    int screenchars = LINES*COLS;
+    for (int j = 1; j < screenchars;j++ ){
+        addch(' ');
+    }
+}
+
+void game_speed(int value){
+    if (value < 0){
+        abort_game("world_seed:: cannot be negative\n");
+    }
+    TIMEOUT =value;
+}
+
+void set_message(const char* message,int x,int y) {
+    int l = strlen(message);
+    for (int i = 0; i < l; i++){
+        check_bounds("set_message",x+i,y);
+        set_cell(message[i],x+i,y);
+    }
+}
+
+void assert_message(int event,const char* message){
+    if (event == 0){
+        abort_game(message);
+    }
+}
+
+
+void set_cell(int character,int x,int y) {
+    check_bounds("set_cell",x,y);
+    set_color_cell(character,x,y,COLOR_WHITE,COLOR_BLACK);
+}
+
+void set_color_cell(int character,int x,int y,short front_color,short back_color){
+    check_bounds("set_color_cell",x,y);
+    if (has_colors()){
+        int pair = COLOR_COUNT * front_color + back_color; 
+        attron(COLOR_PAIR(pair));
+        mvaddch(y,x,character);
+        attroff(COLOR_PAIR(pair));
+    }
+    else{
+        mvaddch(y,x,character);
+    }
+}
+
+int start_world(void* (*init_game)(),int (*world_event)(struct event* event,void* game),void (*destroy_game)(void*)){
+    srand(time(NULL));
+    int r = 1;
+    // Speed global variable
+    TIMEOUT = 100;
+    if (initscr() == NULL){
+        // TODO Which Error?
+        puts("Curses Error.");
+        return -1;
+    }
+    noecho(); // Nevypisuj vstup na obrazovku
+    cbreak(); // Zabudni starý vstup
+    nodelay(stdscr,TRUE); // Nečakaj na stlačenie
+    keypad(stdscr,TRUE); // Aktivuje šípky
+    curs_set(FALSE); // Neviditeľný kurzor
+    /* Get all the mouse events */
+    mousemask(ALL_MOUSE_EVENTS, NULL);
+    MEVENT mouse_event;
+    if (has_colors()){ // Zistenie či terminál podporuje farby
+        start_color();
+        for (int i = 0; i < COLOR_COUNT;i++){
+            for (int j = 0; j < COLOR_COUNT;j++){
+                init_pair(i * COLOR_COUNT + j, i,j);
+            }
+        }
+    }
+    else {
+        puts("No colors!\n");
+    }
+    void* game = NULL;
+    if (init_game != NULL){
+         game = init_game();
+         assert_message(game != NULL,"init_game:: should return non null pointer");
+    }
+    timeout(TIMEOUT);
+    // Initial step
+    struct event event;
+    memset(&event,0,sizeof(struct event));
+    event.height = LINES;
+    event.width = COLS;
+    event.type = EVENT_START;
+    clock_t start_time = clock();
+    clock_t last_timeout = start_time;
+    clock_t next_timeout = last_timeout + TIMEOUT;
+    event.time_ms = start_time;
+    // Start event
+    r = world_event(&event,game);
+    refresh();
+    while (!r) {
+        memset(&event,0,sizeof(struct event));
+        event.height = LINES;
+        event.width = COLS;
+        event.key = getch();
+        // No key was pressed
+        if (event.key == ERR){
+            event.type = EVENT_TIMEOUT;
+            last_timeout = clock();
+            next_timeout = last_timeout + TIMEOUT;
+        }
+        // Mouse event
+        else if (event.key == KEY_MOUSE ){
+            event.type = EVENT_MOUSE;
+            if(getmouse(&mouse_event) == OK){
+                event.mouse_x = mouse_event.x;
+                event.mouse_y = mouse_event.y;
+                if(mouse_event.bstate & BUTTON1_PRESSED){
+                    event.mouse_left = 1;
+                }
+                if(mouse_event.bstate & BUTTON2_PRESSED){
+                    event.mouse_middle = 1;
+                }
+                if(mouse_event.bstate & BUTTON3_PRESSED){
+                    event.mouse_right = 1;
+                }
+            }
+        }
+        else if (event.key == KEY_RESIZE) {
+            event.type = EVENT_RESIZE;
+        }
+        else{
+            event.type = EVENT_KEY;
+            if (event.key == 27){
+                int k = getch();
+                if (k == -1){
+                    // Esc Was pressed
+                    event.type = EVENT_ESC;
+                }
+                else {
+                    // Alt was pressed
+                    event.key = k;
+                    event.alt_key = 1;
+                }
+            }
+        }
+        // Draw new world
+        event.time_ms = clock();
+        r = world_event(&event,game);
+        refresh();
+        event.time_ms = clock();
+        // set new timeout
+        int nt = next_timeout - event.time_ms;
+        //printf("%d\n",nt);
+        if (nt > 0){
+            timeout(nt);
+        }
+        else {
+            timeout(TIMEOUT);
+            next_timeout = event.time_ms + TIMEOUT;
+        }
+    }
+    memset(&event,0,sizeof(struct event));
+    event.height = LINES;
+    event.width = COLS;
+    event.type = EVENT_END;
+    event.time_ms = clock();
+    world_event(&event,game);
+    if (destroy_game != NULL){
+        destroy_game(game);
+    }
+    endwin();
+    return r;
+};
diff --git a/du8/world.h b/du8/world.h
new file mode 100644
index 0000000..73be057
--- /dev/null
+++ b/du8/world.h
@@ -0,0 +1,113 @@
+#ifndef _WORLD_H_
+#define _WORLD_H_
+
+#include <curses.h>
+
+/**
+ * World represented as a rectangular matrix of colorful characters.
+ * 
+ * Point [0,0] is displayed the upper left corner of the screen.
+ * 
+ */
+
+enum event_type {
+    EVENT_START,
+    EVENT_TIMEOUT,
+    EVENT_KEY,
+    EVENT_MOUSE,
+    EVENT_RESIZE,
+    EVENT_ESC,
+    EVENT_END,
+};
+
+struct event {
+    /**
+     * Last width of the screen.
+     */
+    int width;
+    /**
+     * Last height of the screen.
+     */
+    int height;
+    /**
+     * Last pressed key or Curses event.
+     *
+     * Special event  values:
+     * ERR if timeout,
+     * KEY_RESIZE if screen resize
+     * KEY_EVENT, other event,
+     * KEY_MOUSE, mouse clicked
+     *
+     * Key values:
+     *
+     * ' ' Space
+     * KEY_DOWN Arrow down
+     * KEY_UP Arrow up
+     * KEY_LEFT Arrow left
+     * KEY_RIGHT Arrow right
+     * KEY_A1 Upper left of keypad
+     * KEY_A3 Upper right of keypad
+     * KEY_B2 Center of keypad
+     * KEY_C1 Lower left of keypad
+     * KEY_C3 Lower right of keypad
+     *
+     * KEY_ENTER
+     * KEY_BACKSPACE
+     */
+    int key;
+    int alt_key;
+    enum event_type type;
+    int mouse_x;
+    int mouse_y;
+    int mouse_left;
+    int mouse_right;
+    int mouse_middle;
+    long int time_ms;
+};
+
+/**
+ * Sets cell to a state.
+ * @param event 
+ * @param x coordinate of cell
+ * @param y coordinate of cell
+ * @param new state of the cell
+ */
+void set_cell(int character,int x,int y);
+
+/**
+ * COLOR_BLACK   0
+ * COLOR_RED     1
+ * COLOR_GREEN   2
+ * COLOR_YELLOW  3
+ * COLOR_BLUE    4
+ * COLOR_MAGENTA 5
+ * COLOR_CYAN    6
+ * COLOR_WHITE   7
+ */
+
+#define COLOR_COUNT 8
+
+void set_color_cell(int character,int x,int y,short front_color,short back_color);
+
+
+/**
+ *
+ * @param event
+ * @param number of commandline arguments
+ * @param init_world
+ * @param destroy_world
+ *
+ * void init_world(struct event* w);
+ * Initializes user state.
+ * Free user state.
+ * @param event
+ */
+
+int start_world(void* (*init_game)(),int (*world_event)(struct event* event,void* game),void (*destroy_game)(void* game));
+
+void game_speed(int value);
+
+void set_message(const char* message,int x,int y);
+void clear_screen();
+
+#endif
diff --git a/du8/world.o b/du8/world.o
new file mode 100644
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