From 1274a3fae400318732ba0c17964d2d3bc31a612d Mon Sep 17 00:00:00 2001
From: duncanspumpkin <duncans_pumpkin@hotmail.co.uk>
Date: Sat, 16 Mar 2019 20:08:57 +0000
Subject: [PATCH] Fix #8885. Incorrect function for calculating lowest water
 height.

Looks like a good old ctrl+c, ctrl+v and then forgot to actually modify it correctly.
---
 src/openrct2/actions/WaterRaiseAction.hpp | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/src/openrct2/actions/WaterRaiseAction.hpp b/src/openrct2/actions/WaterRaiseAction.hpp
index 65b4104859..d95fefd359 100644
--- a/src/openrct2/actions/WaterRaiseAction.hpp
+++ b/src/openrct2/actions/WaterRaiseAction.hpp
@@ -136,14 +136,15 @@ private:
                 if (tile_element == nullptr)
                     continue;
 
-                uint8_t height = tile_element->AsSurface()->GetWaterHeight();
-                if (height != 0)
+                uint8_t height = tile_element->base_height;
+                if (tile_element->AsSurface()->GetWaterHeight() > 0)
                 {
-                    height *= 2;
-                    if (maxHeight > height)
-                    {
-                        maxHeight = height;
-                    }
+                    height = tile_element->AsSurface()->GetWaterHeight() * 2;
+                }
+
+                if (maxHeight > height)
+                {
+                    maxHeight = height;
                 }
             }
         }