From 8f0f090c5139465bb2db1bf280886a563a68385d Mon Sep 17 00:00:00 2001
From: rubidium <rubidium@openttd.org>
Date: Sat, 19 May 2007 09:40:18 +0000
Subject: (svn r9874) -Feature: advanced vehicle lists a.k.a. group interface.
 Now you can make groups of vehicles and perform all kinds of tasks on that
 given group. Original code by nycom and graphics by skidd13.

---
 src/autoreplace_cmd.cpp | 31 ++++++++++++++++++++++++++++---
 1 file changed, 28 insertions(+), 3 deletions(-)

(limited to 'src/autoreplace_cmd.cpp')

diff --git a/src/autoreplace_cmd.cpp b/src/autoreplace_cmd.cpp
index 59e2ac44d..2774f2234 100644
--- a/src/autoreplace_cmd.cpp
+++ b/src/autoreplace_cmd.cpp
@@ -16,6 +16,7 @@
 #include "train.h"
 #include "aircraft.h"
 #include "cargotype.h"
+#include "group.h"
 
 
 /*
@@ -136,8 +137,17 @@ static int32 ReplaceVehicle(Vehicle **w, byte flags, int32 total_cost)
 	char vehicle_name[32];
 	CargoID replacement_cargo_type;
 
-	new_engine_type = EngineReplacementForPlayer(p, old_v->engine_type);
-	if (new_engine_type == INVALID_ENGINE) new_engine_type = old_v->engine_type;
+	/* If the vehicle belongs to a group, check if the group is protected from the global autoreplace.
+	 *  If not, chek if an global auto replacement is defined */
+	new_engine_type = (IsValidGroupID(old_v->group_id) && GetGroup(old_v->group_id)->replace_protection) ?
+			INVALID_ENGINE :
+			EngineReplacementForPlayer(p, old_v->engine_type, DEFAULT_GROUP);
+
+	/* If we don't set new_egnine_type previously, we try to check if an autoreplacement was defined
+	 *  for the group and the engine_type of the vehicle */
+	if (new_engine_type == INVALID_ENGINE && !IsDefaultGroupID(old_v->group_id)) {
+		new_engine_type = EngineReplacementForPlayer(p, old_v->engine_type, old_v->group_id);
+	}
 
 	replacement_cargo_type = GetNewCargoTypeForReplace(old_v, new_engine_type);
 
@@ -165,6 +175,7 @@ static int32 ReplaceVehicle(Vehicle **w, byte flags, int32 total_cost)
 		new_v = GetVehicle(_new_vehicle_id);
 		*w = new_v; //we changed the vehicle, so MaybeReplaceVehicle needs to work on the new one. Now we tell it what the new one is
 
+		new_v->group_id = old_v->group_id;
 		/* refit if needed */
 		if (replacement_cargo_type != CT_NO_REFIT) {
 			if (CmdFailed(DoCommand(0, new_v->index, replacement_cargo_type, DC_EXEC, GetCmdRefitVeh(new_v)))) {
@@ -194,6 +205,7 @@ static int32 ReplaceVehicle(Vehicle **w, byte flags, int32 total_cost)
 			new_v->profit_this_year = old_v->profit_this_year;
 			new_v->profit_last_year = old_v->profit_last_year;
 			new_v->service_interval = old_v->service_interval;
+			new_v->group_id = old_v->group_id;
 			new_front = true;
 			new_v->unitnumber = old_v->unitnumber; // use the same unit number
 			new_v->dest_tile  = old_v->dest_tile;
@@ -211,6 +223,10 @@ static int32 ReplaceVehicle(Vehicle **w, byte flags, int32 total_cost)
 				if (temp_v != NULL) {
 					DoCommand(0, (new_v->index << 16) | temp_v->index, 1, DC_EXEC, CMD_MOVE_RAIL_VEHICLE);
 				}
+			} else if (!IsDefaultGroupID(old_v->group_id) && IsValidGroupID(old_v->group_id)) {
+				/* Increase the new num engines of the group for the ships, aircraft, and road vehicles
+					The old new num engine is decrease in the destroyvehicle function */
+				GetGroup(old_v->group_id)->num_engines[new_v->engine_type]++;
 			}
 		}
 		/* We are done setting up the new vehicle. Now we move the cargo from the old one to the new one */
@@ -305,8 +321,17 @@ int32 MaybeReplaceVehicle(Vehicle *v, bool check, bool display_costs)
 			if (!p->engine_renew ||
 					w->age - w->max_age < (p->engine_renew_months * 30) || // replace if engine is too old
 					w->max_age == 0) { // rail cars got a max age of 0
-				if (!EngineHasReplacementForPlayer(p, w->engine_type)) // updates to a new model
+				/* If the vehicle belongs to a group, check if the group is protected from the global autoreplace.
+				   If not, chek if an global auto remplacement is defined */
+				if (IsValidGroupID(w->group_id)) {
+					if (!EngineHasReplacementForPlayer(p, w->engine_type, w->group_id) && (
+							GetGroup(w->group_id)->replace_protection ||
+							!EngineHasReplacementForPlayer(p, w->engine_type, DEFAULT_GROUP))) {
+						continue;
+					}
+				} else if (!EngineHasReplacementForPlayer(p, w->engine_type, DEFAULT_GROUP)) {
 					continue;
+				}
 			}
 
 			/* Now replace the vehicle */
-- 
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