From 1f4abeaa00b931b827148e65c3381a8270e75940 Mon Sep 17 00:00:00 2001
From: Hanse-14 <johannes14.graf@gmail.com>
Date: Wed, 20 Dec 2023 16:57:29 +0100
Subject: [PATCH] fix change direction into itself #7

---
 src/snake.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/snake.c b/src/snake.c
index 6a9ffc0..2a22497 100644
--- a/src/snake.c
+++ b/src/snake.c
@@ -1,6 +1,7 @@
 #include "snake.h"
 #include "game.h"   //for access to global 'game' struct
 
+bool snakeSetDirectionIsAllowed = true;
 
 void snakeInit()
 {
@@ -44,6 +45,8 @@ void snakeGrow()
 void snakeMove()
 {   
     int i = game.snake.length - 1;  // counter for snake moving
+    
+    snakeSetDirectionIsAllowed = true;   // direction can be changed now
 
     // update head position automatically
     snakeUpdateHeadPos();
@@ -63,6 +66,12 @@ void snakeMove()
 
 void snakeSetDir(snakeDirection_t dir)
 {   
+    // if direction mustn changed
+    if(!snakeSetDirectionIsAllowed)
+    {
+        return;
+    }
+
     // check, if snake should be move in opposite direction -> new direction stays old direction
     switch(dir)
     {
@@ -92,6 +101,7 @@ void snakeSetDir(snakeDirection_t dir)
 
     }
     game.snake.direction = dir;
+    snakeSetDirectionIsAllowed = false;     // direction cannot updated until next snakeMove
     return;
 }