From 1908a36f8264e28b90469340c9f12552d77a9171 Mon Sep 17 00:00:00 2001
From: Fredrik Jensen <fredrik@netliferesearch.com>
Date: Mon, 14 Aug 2017 22:18:46 +0200
Subject: [PATCH] collision function... :snake:

---
 src/index.js | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/src/index.js b/src/index.js
index 3ccb97d..3f22fee 100644
--- a/src/index.js
+++ b/src/index.js
@@ -145,9 +145,24 @@ const makeFood = () => {
   const x = _.random(50);
   const y = _.random(50);
 
+  if (_.find(snakeBody, { x, y })) {
+    console.log('food placed under the snake...');
+
+    /**
+    * Food was placed under the snake
+    */
+    return makeFood();
+    /**
+     * So we made food again... yolo
+     */
+  }
+
   food.x = x;
   food.y = y;
 
+  const snakeLength = snake.log.length - 1;
+  const snakeBody = snake.log.slice((snakeLength - snake.body), snakeLength);
+
   setBrickColor('blue', x, y);
 };
 
@@ -163,11 +178,26 @@ const checkIfSnakeIsEating = () => {
   }
 };
 
+/**
+ * Check collision
+ */
+
+const checkCollision = () => {
+  const snakeLength = snake.log.length - 2;
+  const snakeBody = snake.log.slice((snakeLength - snake.body), snakeLength);
+  const snakeHead = { x: snake.x, y: snake.y };
+
+  if (_.find(snakeBody, snakeHead)) {
+    alert('Oh noooo! Collision.... Start again?');
+  }
+}
+
 /**
  * Run game
  */
 
 setInterval(() => {
+  checkCollision();
   moveSnake(snake.direction);
   checkIfSnakeIsEating();
 }, snake.speed);