From 03910ce7e9010d7457e1088f22d78267554bd0cc Mon Sep 17 00:00:00 2001
From: tron <tron@openttd.org>
Date: Sat, 11 Dec 2004 10:17:10 +0000
Subject: [PATCH] (svn r1015) MFM r789 Replaced the slightly misleading
 SERVICE_INTERVAL by a function VehicleNeedsService()

---
 aircraft_cmd.c | 4 ++--
 roadveh_cmd.c  | 4 ++--
 ship_cmd.c     | 4 ++--
 train_cmd.c    | 4 ++--
 vehicle.c      | 7 +++++++
 vehicle.h      | 3 ++-
 6 files changed, 17 insertions(+), 9 deletions(-)

diff --git a/aircraft_cmd.c b/aircraft_cmd.c
index 74a8232510..a851343fe0 100644
--- a/aircraft_cmd.c
+++ b/aircraft_cmd.c
@@ -461,7 +461,7 @@ static void CheckIfAircraftNeedsService(Vehicle *v)
 	if (_patches.servint_aircraft == 0)
 		return;
 
-	if (SERVICE_INTERVAL)
+	if (!VehicleNeedsService(v))
 		return;
 
 	if (v->vehstatus & VS_STOPPED)
@@ -997,7 +997,7 @@ static void ProcessAircraftOrder(Vehicle *v)
 
 	if (v->current_order.type == OT_GOTO_DEPOT &&
 			(v->current_order.flags & (OF_UNLOAD | OF_FULL_LOAD)) == (OF_UNLOAD | OF_FULL_LOAD) &&
- 			SERVICE_INTERVAL) {
+ 			!VehicleNeedsService(v)) {
  		v->cur_order_index++;
  	}
 
diff --git a/roadveh_cmd.c b/roadveh_cmd.c
index 7df7b7f44c..a366047131 100644
--- a/roadveh_cmd.c
+++ b/roadveh_cmd.c
@@ -569,7 +569,7 @@ static void ProcessRoadVehOrder(Vehicle *v)
 
 	if (v->current_order.type == OT_GOTO_DEPOT &&
 			(v->current_order.flags & (OF_UNLOAD | OF_FULL_LOAD)) == (OF_UNLOAD | OF_FULL_LOAD) &&
-			SERVICE_INTERVAL ) {
+			!VehicleNeedsService(v)) {
 		v->cur_order_index++;
 	}
 
@@ -1433,7 +1433,7 @@ static void CheckIfRoadVehNeedsService(Vehicle *v)
 	if (_patches.servint_roadveh == 0)
 		return;
 
-	if (SERVICE_INTERVAL)
+	if (!VehicleNeedsService(v))
 		return;
 
 	if (v->vehstatus & VS_STOPPED)
diff --git a/ship_cmd.c b/ship_cmd.c
index 2c91fda3c2..8f2dfb89ac 100644
--- a/ship_cmd.c
+++ b/ship_cmd.c
@@ -89,7 +89,7 @@ static void CheckIfShipNeedsService(Vehicle *v)
 	if (_patches.servint_ships == 0)
 		return;
 
-	if (SERVICE_INTERVAL)
+	if (!VehicleNeedsService(v))
 		return;
 
 	if (v->vehstatus & VS_STOPPED)
@@ -214,7 +214,7 @@ static void ProcessShipOrder(Vehicle *v)
 
 	if (v->current_order.type == OT_GOTO_DEPOT &&
 			(v->current_order.flags & (OF_UNLOAD | OF_FULL_LOAD)) == (OF_UNLOAD | OF_FULL_LOAD) &&
-			SERVICE_INTERVAL) {
+			!VehicleNeedsService(v)) {
 		v->cur_order_index++;
 	}
 
diff --git a/train_cmd.c b/train_cmd.c
index 256ccb6d54..50df00a595 100644
--- a/train_cmd.c
+++ b/train_cmd.c
@@ -1589,7 +1589,7 @@ static bool ProcessTrainOrder(Vehicle *v)
 
 	if (v->current_order.type == OT_GOTO_DEPOT &&
 			(v->current_order.flags & (OF_UNLOAD | OF_FULL_LOAD)) ==  (OF_UNLOAD | OF_FULL_LOAD) &&
-			SERVICE_INTERVAL) {
+			!VehicleNeedsService(v)) {
 		v->cur_order_index++;
 	}
 
@@ -2597,7 +2597,7 @@ static void CheckIfTrainNeedsService(Vehicle *v)
 	if (_patches.servint_trains == 0)
 		return;
 
-	if (SERVICE_INTERVAL)
+	if (!VehicleNeedsService(v))
 		return;
 
 	if (v->vehstatus & VS_STOPPED)
diff --git a/vehicle.c b/vehicle.c
index 145d225613..55bb3a1866 100644
--- a/vehicle.c
+++ b/vehicle.c
@@ -22,6 +22,13 @@ void VehicleServiceInDepot(Vehicle *v)
 	v->reliability = _engines[v->engine_type].reliability;
 }
 
+bool VehicleNeedsService(const Vehicle *v)
+{
+	return _patches.servint_ispercent ? 
+		(v->reliability < _engines[v->engine_type].reliability * (100 - v->service_interval) / 100) : 
+		(v->date_of_last_service + v->service_interval < _date);
+}
+
 Order UnpackOldOrder(uint16 packed)
 {
 	Order order;
diff --git a/vehicle.h b/vehicle.h
index 557536441c..fdc91c92ff 100644
--- a/vehicle.h
+++ b/vehicle.h
@@ -390,6 +390,8 @@ int CheckStoppedInDepot(Vehicle *v);
 int ScheduleHasDepotOrders(const Order *schedule);
 int CheckOrders(Vehicle *v);
 
+bool VehicleNeedsService(const Vehicle *v);
+
 typedef struct GetNewVehiclePosResult {
 	int x,y;
 	uint old_tile;
@@ -449,7 +451,6 @@ VARDEF BackuppedOrders _backup_orders_data[1];
 
 #define INVALID_VEHICLE 0xffff
 
-#define SERVICE_INTERVAL (_patches.servint_ispercent ? (v->reliability > _engines[v->engine_type].reliability * (100 - v->service_interval) / 100) : (v->date_of_last_service + v->service_interval > _date))
 #define MIN_SERVINT_PERCENT  5
 #define MAX_SERVINT_PERCENT 90
 #define MIN_SERVINT_DAYS    30