From cd6ab6178c7daf0aa1c00eda66671f57fc1f73fd Mon Sep 17 00:00:00 2001
From: peter1138 <peter1138@openttd.org>
Date: Fri, 19 May 2006 10:04:03 +0000
Subject: (svn r4910) - NewGRF: add and initialize cargo subtype for vehicle
 visual variations

---
 aircraft_cmd.c  | 2 ++
 newgrf_engine.c | 2 +-
 roadveh_cmd.c   | 1 +
 ship_cmd.c      | 1 +
 train_cmd.c     | 4 ++++
 vehicle.h       | 1 +
 6 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/aircraft_cmd.c b/aircraft_cmd.c
index fd7dad834..e52618210 100644
--- a/aircraft_cmd.c
+++ b/aircraft_cmd.c
@@ -236,6 +236,8 @@ int32 CmdBuildAircraft(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
 		v->cargo_type = CT_PASSENGERS;
 		u->cargo_type = CT_MAIL;
 
+		v->cargo_subtype = 0;
+
 		v->string_id = STR_SV_AIRCRAFT_NAME;
 //		v->next_order_param = v->next_order = 0;
 
diff --git a/newgrf_engine.c b/newgrf_engine.c
index 3a7773130..e4c3074c2 100644
--- a/newgrf_engine.c
+++ b/newgrf_engine.c
@@ -675,7 +675,7 @@ static uint32 VehicleGetVariable(const ResolverObject *object, byte variable, by
 		case 0x5F: return v->value & 0xFF;
 		case 0x60: return v->string_id;
 		case 0x61: return v->string_id & 0xFF;
-		case 0x72: return 0; // XXX Refit cycle
+		case 0x72: return v->cargo_subtype;
 		case 0x7A: return v->random_bits;
 		case 0x7B: return v->waiting_triggers;
 	}
diff --git a/roadveh_cmd.c b/roadveh_cmd.c
index 963f635ec..0c93972de 100644
--- a/roadveh_cmd.c
+++ b/roadveh_cmd.c
@@ -156,6 +156,7 @@ int32 CmdBuildRoadVeh(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
 
 		v->spritenum = rvi->image_index;
 		v->cargo_type = rvi->cargo_type;
+		v->cargo_subtype = 0;
 		v->cargo_cap = rvi->capacity;
 //		v->cargo_count = 0;
 		v->value = cost;
diff --git a/ship_cmd.c b/ship_cmd.c
index 1d6e1383d..0f9abf178 100644
--- a/ship_cmd.c
+++ b/ship_cmd.c
@@ -863,6 +863,7 @@ int32 CmdBuildShip(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
 
 		v->spritenum = svi->image_index;
 		v->cargo_type = svi->cargo_type;
+		v->cargo_subtype = 0;
 		v->cargo_cap = svi->capacity;
 		v->value = value;
 
diff --git a/train_cmd.c b/train_cmd.c
index bf6996ccc..1810d5925 100644
--- a/train_cmd.c
+++ b/train_cmd.c
@@ -535,6 +535,7 @@ static void AddArticulatedParts(const RailVehicleInfo *rvi, Vehicle **vl)
 		u->spritenum = rvi_artic->image_index;
 		if (flip_image) u->spritenum++;
 		u->cargo_type = rvi_artic->cargo_type;
+		u->cargo_subtype = 0;
 		u->cargo_cap = rvi_artic->capacity;
 		u->max_speed = 0;
 		u->max_age = 0;
@@ -616,6 +617,7 @@ static int32 CmdBuildRailWagon(EngineID engine, TileIndex tile, uint32 flags)
 			}
 
 			v->cargo_type = rvi->cargo_type;
+			v->cargo_subtype = 0;
 			v->cargo_cap = rvi->capacity;
 			v->value = value;
 //			v->day_counter = 0;
@@ -681,6 +683,7 @@ static void AddRearEngineToMultiheadedTrain(Vehicle* v, Vehicle* u, bool buildin
 	SetMultiheaded(u);
 	u->spritenum = v->spritenum + 1;
 	u->cargo_type = v->cargo_type;
+	u->cargo_subtype = v->cargo_subtype;
 	u->cargo_cap = v->cargo_cap;
 	u->u.rail.railtype = v->u.rail.railtype;
 	if (building) v->next = u;
@@ -763,6 +766,7 @@ int32 CmdBuildRailVehicle(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
 			v->vehstatus = VS_HIDDEN | VS_STOPPED | VS_DEFPAL;
 			v->spritenum = rvi->image_index;
 			v->cargo_type = rvi->cargo_type;
+			v->cargo_subtype = 0;
 			v->cargo_cap = rvi->capacity;
 			v->max_speed = rvi->max_speed;
 			v->value = value;
diff --git a/vehicle.h b/vehicle.h
index e6a1f5dbf..a4939c69e 100644
--- a/vehicle.h
+++ b/vehicle.h
@@ -183,6 +183,7 @@ struct Vehicle {
 	StationID cargo_source;// source of cargo
 	uint16 cargo_cap;	// total capacity
 	uint16 cargo_count;// how many pieces are used
+	byte cargo_subtype;      ///< Used for livery refits (NewGRF variations)
 
 	byte day_counter; // increased by one for each day
 	byte tick_counter;// increased by one for each tick
-- 
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