From 7658210da41c86e0055c32c86faab4e79053cc4f Mon Sep 17 00:00:00 2001
From: Eryn Wells <eryn@erynwells.me>
Date: Sat, 10 Nov 2018 17:43:10 -0500
Subject: [PATCH] Fix an off by one bug... the tests didn't catch this one :\

---
 Terrain2/Algorithms.swift | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Terrain2/Algorithms.swift b/Terrain2/Algorithms.swift
index 892f0b8..66975b0 100644
--- a/Terrain2/Algorithms.swift
+++ b/Terrain2/Algorithms.swift
@@ -286,11 +286,11 @@ public class DiamondSquareGenerator: TerrainGenerator {
             return [n, w, s, e].map { (p: Point) -> Point in
                 if p.x < 0 {
                     return Point(x: p.x + grid.size.w - 1, y: p.y)
-                } else if p.x > grid.size.w {
+                } else if p.x >= grid.size.w {
                     return Point(x: p.x - grid.size.w + 1, y: p.y)
                 } else if p.y < 0 {
                     return Point(x: p.x, y: p.y + grid.size.h - 1)
-                } else if p.y > grid.size.h {
+                } else if p.y >= grid.size.h {
                     return Point(x: p.x, y: p.y - grid.size.h + 1)
                 } else {
                     return p