From f7c769603b448ab7cc43669295a58934ab546a6e Mon Sep 17 00:00:00 2001
From: Rik Smeets <30838294+rik-smeets@users.noreply.github.com>
Date: Mon, 22 Aug 2022 18:51:16 +0200
Subject: [PATCH] Close #9104: Calculate maze support costs

---
 distribution/changelog.txt           | 1 +
 src/openrct2/network/NetworkBase.cpp | 2 +-
 src/openrct2/ride/gentle/Maze.cpp    | 8 ++++++--
 src/openrct2/ride/gentle/Maze.h      | 2 +-
 4 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/distribution/changelog.txt b/distribution/changelog.txt
index 18d98f88c9..ae255580ed 100644
--- a/distribution/changelog.txt
+++ b/distribution/changelog.txt
@@ -10,6 +10,7 @@
 - Improved: [#15358] Park and scenario names can now contain up to 128 characters.
 - Improved: [#16840] Add support for rectangular heightmaps.
 - Improved: [#17575] You can now search for Authors in Object Selection.
+- Change: [#9104] Calculate maze support costs.
 - Change: [#17319] Giant screenshots are now cropped to the horizontal view-clipping selection.
 - Change: [#17499] Update error text when using vehicle incompatible with TD6 and add error when using incompatible track elements.
 - Change: [#17655] Lower default price for the Crooked House.
diff --git a/src/openrct2/network/NetworkBase.cpp b/src/openrct2/network/NetworkBase.cpp
index be3784cf4c..ffa0abcf1d 100644
--- a/src/openrct2/network/NetworkBase.cpp
+++ b/src/openrct2/network/NetworkBase.cpp
@@ -42,7 +42,7 @@
 // This string specifies which version of network stream current build uses.
 // It is used for making sure only compatible builds get connected, even within
 // single OpenRCT2 version.
-#define NETWORK_STREAM_VERSION "7"
+#define NETWORK_STREAM_VERSION "8"
 #define NETWORK_STREAM_ID OPENRCT2_VERSION "-" NETWORK_STREAM_VERSION
 
 static Peep* _pickup_peep = nullptr;
diff --git a/src/openrct2/ride/gentle/Maze.cpp b/src/openrct2/ride/gentle/Maze.cpp
index d9bbd86fe8..56ee63459c 100644
--- a/src/openrct2/ride/gentle/Maze.cpp
+++ b/src/openrct2/ride/gentle/Maze.cpp
@@ -197,10 +197,14 @@ TRACK_PAINT_FUNCTION get_track_paint_function_maze(int32_t trackType)
     return maze_paint_setup;
 }
 
-money64 MazeCalculateCost(money32 constructionCost, const Ride& ride)
+money64 MazeCalculateCost(money32 constructionCost, const Ride& ride, const CoordsXYZ& _loc)
 {
     const auto& ted = GetTrackElementDescriptor(TrackElemType::Maze);
     money64 price = (ride.GetRideTypeDescriptor().BuildCosts.TrackPrice * ted.PriceModifier) >> 16;
 
-    return constructionCost + price;
+    auto surfaceElement = map_get_surface_element_at(_loc);
+    auto heightDifference = (_loc.z - surfaceElement->GetBaseZ()) / COORDS_Z_PER_TINY_Z;
+    money64 supportCost = heightDifference * ride.GetRideTypeDescriptor().BuildCosts.SupportPrice;
+
+    return constructionCost + price + supportCost;
 }
diff --git a/src/openrct2/ride/gentle/Maze.h b/src/openrct2/ride/gentle/Maze.h
index e6a882337f..8a13c58f42 100644
--- a/src/openrct2/ride/gentle/Maze.h
+++ b/src/openrct2/ride/gentle/Maze.h
@@ -11,4 +11,4 @@
 
 #include "../RideData.h"
 
-money64 MazeCalculateCost(money32 constructionCost, const Ride& ride);
+money64 MazeCalculateCost(money32 constructionCost, const Ride& ride, const CoordsXYZ& _loc);