From 6e2784ba0e3b017a6f7cbaddf69566ab35b18439 Mon Sep 17 00:00:00 2001
From: Joshua Barretto <joshua.s.barretto@gmail.com>
Date: Sun, 26 Jan 2020 13:21:33 +0000
Subject: [PATCH] Convert to chunk positions for downhill

---
 world/src/sim/mod.rs | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/world/src/sim/mod.rs b/world/src/sim/mod.rs
index 5279d372fb..412b1798c7 100644
--- a/world/src/sim/mod.rs
+++ b/world/src/sim/mod.rs
@@ -1465,7 +1465,12 @@ impl WorldSim {
                 const MAX_ITERS: usize = 64;
                 for _ in 0..MAX_ITERS {
                     match this.get(pos)?.downhill {
-                        Some(downhill) => pos = downhill,
+                        Some(downhill) => {
+                            pos = downhill
+                                .map2(Vec2::from(TerrainChunkSize::RECT_SIZE), |e, sz: u32| {
+                                    e / (sz as i32)
+                                })
+                        }
                         None => return Some(pos),
                     }
                 }