snake

du4/program.c

@@ -0,0 +1,16 @@
+#include <stdio.h>
+#include <unistd.h>
+#include "game.h"
+
+int main() {
+    printf("Starting Snake Game...\n");
+    printf("Use arrow keys to move the snake.\n");
+    printf("Press 'q' to quit.\n");
+    printf("Eat all food (*) to win!\n\n");
+    sleep(2);
+    
+    run_game();
+    
+    printf("Thanks for playing!\n");
+    return 0;
+}

du4/snake.c

@@ -64,6 +64,12 @@ int step_state(struct state* state) {
         return END_WALL;
     }
     
+    // Check if new position is on snake's body
+    if (is_snake(state->snake, new_x, new_y)) {
+        return END_SNAKE;
+    }
+    
+    // Find food at new position
     int food_index = -1;
     int items_left = 0;
     
@@ -76,14 +82,9 @@ int step_state(struct state* state) {
     }
     
     if (food_index >= 0) {
+        // Food found - mark as eaten and grow snake
         state->foodx[food_index] = -1;
         state->foody[food_index] = -1;
-        
-        if (is_snake(state->snake, new_x, new_y)) {
-            state->snake = add_snake(state->snake, new_x, new_y);
-            return END_SNAKE;
-        }
-        
         state->snake = add_snake(state->snake, new_x, new_y);
         
         if (items_left == 0) {
@@ -91,14 +92,9 @@ int step_state(struct state* state) {
         }
         return END_CONTINUE;
     } else {
+        // No food - normal movement (remove tail and add head)
         state->snake = remove_snake(state->snake);
-        
-        if (is_snake(state->snake, new_x, new_y)) {
-            state->snake = add_snake(state->snake, new_x, new_y);
-            return END_SNAKE;
-        }
-        
         state->snake = add_snake(state->snake, new_x, new_y);
         return END_CONTINUE;
     }
-}
+}

du4/snake.h

@@ -2,7 +2,7 @@
 #define snake_h_INCLUDED
 
 // Number of food items on the plane
-#define FOOD_COUNT 5
+#define FOOD_COUNT 20
 
 /**
  * One part of the snake;