Prevent moving juuust outside of the map.

gravypod · Sep 25, 2017 · d04931b · d04931b
1 parent 362a934
commit d04931b
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/game/snake.js b/game/snake.js
@@ -53,8 +53,8 @@ game.update = function (delta) {
     // Movement
     if (game.direction !== null) {
         var is_off_screen = function (dot) {
-            return dot.x < 0 || dot.x > (ROWS) ||
-                   dot.y < 0 || dot.y > (COLS);
+            return dot.x < 0 || dot.x > (ROWS - 1) ||
+                   dot.y < 0 || dot.y > (COLS - 1);
         };
         var next = make_location_to(game.direction, last_dot);