From 53c54eac8edd368a4db147dc5236e69f460705ae Mon Sep 17 00:00:00 2001
From: Nazar Sendetskyi <nazar.sendetskyi@student.tuke.sk>
Date: Tue, 14 Jun 2022 07:44:07 +0000
Subject: [PATCH] =?UTF-8?q?=D0=97=D0=B0=D0=B3=D1=80=D1=83=D0=B7=D0=B8?=
 =?UTF-8?q?=D0=BB(=D0=B0)=20=D1=84=D0=B0=D0=B9=D0=BB=D1=8B=20=D0=B2=20'du8?=
 =?UTF-8?q?'?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 du8/program   | Bin 0 -> 24664 bytes
 du8/program.c | 263 ++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 263 insertions(+)
 create mode 100644 du8/program
 create mode 100644 du8/program.c

diff --git a/du8/program b/du8/program
new file mode 100644
index 0000000000000000000000000000000000000000..d3754bb4f034c3d04d10e94437ae509bc4e65126
GIT binary patch
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diff --git a/du8/program.c b/du8/program.c
new file mode 100644
index 0000000..03fa5d4
--- /dev/null
+++ b/du8/program.c
@@ -0,0 +1,263 @@
+#include <stdlib.h>
+#include <curses.h>
+#include <signal.h>
+#include <sys/select.h>
+#include <stdio.h>
+#include <time.h>
+ 
+#define DESIRED_WIDTH  70
+#define DESIRED_HEIGHT 25
+ 
+WINDOW * g_mainwin;
+int g_oldcur, g_score = 0, g_width, g_height;
+typedef struct {
+    int x;
+    int y;
+} pos;
+pos fruit;
+ 
+// 2D array of all spaces on the board.
+bool *spaces;
+ 
+// --------------------------------------------------------------------------
+// Queue stuff
+ 
+// Queue implemented as a doubly linked list
+struct s_node
+{
+    pos *position; // **TODO: make this a void pointer for generality.
+    struct s_node *prev;
+    struct s_node *next;
+} *front=NULL, *back=NULL;
+typedef struct s_node node;
+ 
+// Returns the position at the front w/o dequeing
+pos* peek( )
+{
+    return front == NULL ? NULL : front->position;
+}
+ 
+// Returns the position at the front and dequeues
+pos* dequeue( )
+{
+    node *oldfront = front;
+    front = front->next;
+    return oldfront->position;
+}
+ 
+// Queues a position at the back
+void enqueue( pos position )
+{
+   pos *newpos   = (pos*)  malloc( sizeof( position ) );
+   node *newnode = (node*) malloc( sizeof( node ) );
+ 
+   newpos->x = position.x;
+   newpos->y = position.y;
+   newnode->position = newpos;
+ 
+   if( front == NULL && back == NULL )
+       front = back = newnode;
+   else
+   {
+       back->next = newnode;
+       newnode->prev = back;
+       back = newnode;
+   }
+}
+
+// End Queue stuff
+ 
+// Snake stuff
+ 
+// Writes text to a coordinate
+void snake_write_text( int y, int x, char* str )
+{
+    mvwaddstr( g_mainwin, y , x, str ); //add a string of characters to a curses window and advance cursor 
+}
+ 
+// Draws the borders
+void snake_draw_board( )
+{
+    int i;
+    for( i=0; i<g_height; i++ )
+    {
+        snake_write_text( i, 0,         "X" );
+        snake_write_text( i, g_width-1, "X" );
+    }
+    for( i=1; i<g_width-1; i++ )
+    {
+        snake_write_text( 0, i,          "X" );
+        snake_write_text( g_height-1, i, "X" );
+    }
+    snake_write_text( g_height+1, 2, "Score:" );
+}
+ 
+// Resets the terminal window and clears up the mem
+void snake_game_over( )
+{
+    free( spaces );
+    while( front )
+    {
+        node *n = front;
+        front = front->next;
+        free( n );
+    }
+    endwin();
+    exit(0);
+}
+ 
+// Is the current position in bounds?
+bool snake_in_bounds( pos position )
+{
+    return position.y < g_height - 1 && position.y > 0 && position.x < g_width - 1 && position.x > 0;
+}
+ 
+// 2D matrix of possible positions implemented with a 1D array. This maps
+// the x,y coordinates to an index in the array.
+int snake_cooridinate_to_index( pos position )
+{
+    return g_width * position.y + position.x;
+}
+ 
+// Similarly this functions maps an index back to a position
+pos snake_index_to_coordinate( int index )
+{
+    int x = index % g_width;
+    int y = index / g_width;
+    return (pos) { x, y };
+}
+ 
+// Draw the fruit somewhere randomly on the board
+void snake_draw_fruit( )
+{
+    attrset( COLOR_PAIR( 3 ) );//curses character and window attribute control routines 
+    int idx;
+    do
+    {
+        idx = rand( ) % ( g_width * g_height );
+        fruit = snake_index_to_coordinate( idx );
+    }
+    while( spaces[idx] || !snake_in_bounds( fruit ) );    
+    snake_write_text( fruit.y, fruit.x, "F" );
+}
+ 
+// Handles moving the snake for each iteration
+bool snake_move_player( pos head )
+{
+    attrset( COLOR_PAIR( 1 ) ) ;
+    
+    // Check if we ran into ourself
+    int idx = snake_cooridinate_to_index( head );
+    if( spaces[idx] )
+        snake_game_over( );
+    spaces[idx] = true; // Mark the space as occupied
+    enqueue( head );//Inserting at the end of a linked list, returning head of list
+    g_score += 10;
+    
+    // Check if we're eating the fruit
+    if( head.x == fruit.x && head.y == fruit.y )
+    {
+        snake_draw_fruit( );
+        g_score += 1000;
+    }
+    else
+    {
+        // Handle the tail
+        pos *tail = dequeue( );
+        spaces[snake_cooridinate_to_index( *tail )] = false;
+        snake_write_text( tail->y, tail->x, " " );
+    }
+    
+    // Draw the new head
+    snake_write_text( head.y, head.x, "S" );
+    
+    // Update scoreboard
+    char buffer[25];
+    sprintf( buffer, "%d", g_score );
+    attrset( COLOR_PAIR( 2 ) );
+    snake_write_text( g_height+1, 9, buffer );
+    return true;
+ 
+}
+ 
+int main( int argc, char *argv[] )
+{
+    int key = KEY_RIGHT;
+    if( ( g_mainwin = initscr() ) == NULL ) {//initscr-создает окно курсес
+        perror( "error initialising ncurses" );// для вывода ошибок
+        exit( EXIT_FAILURE );
+    }
+    
+    // Set up
+    srand( time( NULL ) );
+    noecho( );
+    curs_set( 2 );
+    halfdelay( 1 );
+    keypad( g_mainwin, TRUE );
+    g_oldcur = curs_set( 0 );
+    start_color( );
+    init_pair( 1, COLOR_RED,     COLOR_BLACK );
+    init_pair( 2, COLOR_GREEN,   COLOR_BLACK );
+    init_pair( 3, COLOR_YELLOW,  COLOR_BLACK );
+    init_pair( 4, COLOR_BLUE,    COLOR_BLACK );
+    init_pair( 5, COLOR_CYAN,    COLOR_BLACK );
+    init_pair( 6, COLOR_MAGENTA, COLOR_BLACK );
+    init_pair( 7, COLOR_WHITE,   COLOR_BLACK );
+    getmaxyx( g_mainwin, g_height, g_width );//Robot with colors
+    
+    g_width  = g_width  < DESIRED_WIDTH  ? g_width  : DESIRED_WIDTH;
+    g_height = g_height < DESIRED_HEIGHT ? g_height : DESIRED_HEIGHT;
+    
+    // Set up the 2D array of all spaces
+    spaces = (bool*) malloc( sizeof( bool ) * g_height * g_width );//memory allocation
+ 
+    snake_draw_board( );
+    snake_draw_fruit( );
+    pos head = { 5,5 };
+    enqueue( head );
+    
+    // Event loop
+    while( 1 )
+    {
+        int in = getch( );
+        if( in != ERR )
+            key = in;
+        switch( key )
+        {
+            case KEY_DOWN:
+            case 'j':
+            case 'J':
+            case 's':
+            case 'S':
+                head.y++;
+                break;
+            case KEY_RIGHT:
+            case 'l':
+            case 'L':
+            case 'd':
+            case 'D':
+                head.x++;
+                break;
+            case KEY_UP:
+            case 'k':
+            case 'K':
+            case 'w':
+            case 'W':
+                head.y--;
+                break;
+            case KEY_LEFT:
+            case 'h':
+            case 'H':
+            case 'a':
+            case 'A':
+                head.x--;
+                break;
+ 
+        }
+        if( !snake_in_bounds( head ) )    
+            snake_game_over( );
+        else
+            snake_move_player( head );
+    }
+    snake_game_over( );
+}
\ No newline at end of file