snake_c

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Small snake game in C

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25 commits 2 branches 1 tag 0 releases565.5 KiB

Commit `48f97764a77a`

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Jaglekon <jaglekon@jaglekon.de>2026-03-25 15:53 UTC

1 file changed+126-30

speed setting

Modified file: snake.c+126 additions−30 deletions@@ -25,7 +25,7 @@
 
 #define STRING_LEN 20
 
-#define SPEED 100 /* in ms */
+#define SPEED 50 /* in ms */
 
 #define MAX_LENGTH 1000
 #define STARTING_LENGTH 2
@@ -34,6 +34,8 @@ typedef enum { NEW_GAME, SETTINGS, EXIT, MAIN_MENU } main_menu;
 
 typedef enum {HEIGHT_S, WIDTH_S, SPEED_S, BACK_S, SETTINGS_MENU} settings;
 
+typedef enum {V_FAST, FAST, AVERAGE, SLOW, V_SLOW, SPEED_L} speed;
+
 typedef enum {
   NO_DIRECTION = -1,
   UP = 0,
@@ -124,7 +126,7 @@ int main(int argc, char *args[]) {
   bool too_small = false;
 
 
-  struct timespec mili100 = {0, 1000000 * SPEED};
+  struct timespec mili100 = {0, 1000000 * 100};
 
 
   /* Animation at the start */
@@ -139,6 +141,10 @@ int main(int argc, char *args[]) {
 
   main_menu selected_menu = NEW_GAME;
   settings selected_setting = HEIGHT_S;
+  settings current_setting = SETTINGS_MENU;
+
+
+  speed game_speed = AVERAGE;
 
   while (menu) {
 
@@ -211,62 +217,150 @@ int main(int argc, char *args[]) {
     } else {
 
       char *setting_string[] = {
-        "HEIGHT",
-        "WIDTH",
-        "SPEED",
-        "BACK"
+        "  HEIGHT  ",
+        "  WIDTH   ",
+        "  SPEED   ",
+        "   BACK   "
       };
 
+      char *speed_char[] = {
+        "  VERY FAST  ",
+        "    FAST     ",
+        "   AVERAGE   ",
+        "    SLOW     ",
+        "  VERY SLOW  "
+      };
+
+      uint8_t width = (uint8_t) strlen(setting_string[0]);
+      uint8_t width_setting = (uint8_t) strlen(speed_char[0]);
 
-      switch (arrow) {
-        case UP:
-          selected_setting = (selected_setting + (SETTINGS_MENU - 1)) % SETTINGS_MENU;
-          changed_selected = true;
-          break;
-        case DOWN:
-          selected_setting = (selected_setting + 1) % SETTINGS_MENU;
-          changed_selected = true;
-          break;
-        default:
-          break;
-      }
 
       if (changed_selected || change_menu) {
               
-        uint8_t i;
+        uint8_t i, j;
 
         printf("\033[2J\033[H");
       
+         
         for (i = 0; i < SETTINGS_MENU; i++) {
       
+          printf("+");
+          for (j = 0; j < width; j++)
+            printf("-");
+          printf("+");
+
+          if (i != BACK_S) {
+            printf ("  +");
+
+            for (j = 0; j < width_setting; j++)
+              printf("-");
+            printf("+");
+          }
+
+          printf("\n|");
+
           if (i == selected_setting)
             printf("\033[32m");
 
           printf("%s\033[0m", setting_string[i]);
 
-          if (i < SETTINGS_MENU - 1)
-            printf("\n\n");
+          printf("|");
+
+          if (i != BACK_S) {
+            printf("  |");
+            if (current_setting == i)
+              printf("\033[32m");
+
+            if (i == SPEED_S) {
+              printf("%s", speed_char[game_speed]);
+            } else {
+              for (j = 0; j < width_setting; j++)
+                printf(" ");
+            }
+            printf("\033[0m");
+            printf("|");
+          }
+
+          printf("\n");
+
+          if (i != HEIGHT_S) {
+          
+            printf("+");
+            for (j = 0; j < width; j++)
+              printf("-");
+            printf("+");
+
+            if (i != BACK_S) {
+              printf ("  +");
+
+              for (j = 0; j < width_setting; j++)
+                printf("-");
+              printf("+");
+            }
+
+            if (i < SETTINGS_MENU - 1)
+              printf("\n");
+          }
         }
         fflush(stdout);
 
         change_menu = false;
       }
 
-      
-      if (pressed_enter) {
-        switch (selected_setting) {
-        case BACK_S:
-          setting = false;
+
+      switch (arrow) {
+        case UP:
+          switch (current_setting) {
+            case SETTINGS_MENU:
+              selected_setting = (selected_setting + (SETTINGS_MENU - 1)) % SETTINGS_MENU;
+              break;
+            case SPEED_S:
+              if (game_speed > V_FAST)
+                game_speed--;
+              break;
+            default:
+              break;
+          }
+          change_menu = true;
+          break;
+        case DOWN:
+          switch (current_setting) {
+            case SETTINGS_MENU:
+              selected_setting = (selected_setting + 1) % SETTINGS_MENU;
+              break;
+            case SPEED_S:
+              if (game_speed < V_SLOW)
+                game_speed++;
+              break;
+            default:
+              break;
+          }
           change_menu = true;
           break;
         default:
           break;
+      }
+      
+      if (pressed_enter) {
+        if (current_setting == SETTINGS_MENU) {
+          switch (selected_setting) {
+            case BACK_S:
+              setting = false;
+              break;
+            case SPEED_S:
+              current_setting = SPEED_S;
+              break;
+            default:
+              break;
+          }
+        } else {
+          current_setting = SETTINGS_MENU;
         }
+        change_menu = true;
+      }
         pressed_enter = false;
       }
 
-    }
-
     nanosleep(&mili100, NULL);
   }
 
@@ -307,6 +401,8 @@ int main(int argc, char *args[]) {
 
   bool run = true;
 
+  struct timespec milispeed = {0, 1000000 * (SPEED + game_speed * 25)};
+
   /* start of the actual game loop */
 
   while (run) {
@@ -391,7 +487,7 @@ int main(int argc, char *args[]) {
         draw_board(board, current_size, false, false);
       }
     }
-    nanosleep(&mili100, NULL);
+    nanosleep(&milispeed, NULL);
   }
 
 end_of_program:
@@ -527,7 +623,7 @@ bool start_animation() {
   struct winsize current_size;
   ioctl(STDOUT_FILENO, TIOCGWINSZ, &current_size);
 
-  struct timespec mili10 = {0, 100000 * SPEED};
+  struct timespec mili10 = {0, 1000000 * 10};
 
   char *snake[3][7] = {
     {

snake_c

Commit 48f97764a77a

Commit `48f97764a77a`