From 16ca2e61fc642104e93601e7ced673145ad366b0 Mon Sep 17 00:00:00 2001
From: Duncan Frost <duncans_pumpkin@hotmail.co.uk>
Date: Thu, 15 Jan 2015 21:56:53 +0000
Subject: [PATCH] Add ride_update_popularity

---
 src/ride/ride.c | 16 ++++++++++++++++
 src/ride/ride.h |  1 +
 2 files changed, 17 insertions(+)

diff --git a/src/ride/ride.c b/src/ride/ride.c
index ddc7de6c6d..9939ad64c8 100644
--- a/src/ride/ride.c
+++ b/src/ride/ride.c
@@ -1119,6 +1119,22 @@ static void ride_chairlift_update(rct_ride *ride)
 	map_invalidate_tile(x, y, z, z + (4 * 8));
 }
 
+/* rct2: 0x0069A3D7
+ * Updates the ride popularity
+ * edi : ride
+ * bl  : pop_amount
+ * pop_amount can be zero if peep visited but did not purchase.
+ */
+void ride_update_popularity(rct_ride* ride, uint8 pop_amount){
+	ride->popularity_next += pop_amount;
+	ride->popularity_time_out++;
+	if (ride->popularity_time_out < 25)return;
+
+	ride->popularity = ride->popularity_next;
+	ride->popularity_time_out = 0;
+	ride->var_14D |= 1;
+}
+
 /**
  *
  *  rct2: 0x006AC545
diff --git a/src/ride/ride.h b/src/ride/ride.h
index 51dd79c931..c64ec4380f 100644
--- a/src/ride/ride.h
+++ b/src/ride/ride.h
@@ -612,6 +612,7 @@ void reset_all_ride_build_dates();
 void ride_update_favourited_stat();
 void ride_update_all();
 void ride_check_all_reachable();
+void ride_update_popularity(rct_ride* ride, uint8 pop_amount);
 rct_map_element *sub_6CAF80(int rideIndex, int *outX, int *outY);
 rct_map_element *ride_find_track_gap(rct_map_element *startTrackElement, int *outX, int *outY);
 void ride_construct_new(ride_list_item listItem);