diff src/engine.cpp @ 6643:18d58b36b9b3 draft

(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.
author rubidium <rubidium@openttd.org>
date Sat, 19 May 2007 09:40:18 +0000
parents a06a7d24392b
children 91a7c42b133c
line wrap: on
line diff
--- a/src/engine.cpp
+++ b/src/engine.cpp
@@ -20,6 +20,7 @@
 #include "newgrf_cargo.h"
 #include "date.h"
 #include "table/engines.h"
+#include "group.h"
 
 EngineInfo _engine_info[TOTAL_NUM_ENGINES];
 RailVehicleInfo _rail_vehicle_info[NUM_TRAIN_ENGINES];
@@ -481,6 +482,7 @@
 
 		er->to = INVALID_ENGINE;
 		er->next = NULL;
+		er->group_id = DEFAULT_GROUP;
 		return er;
 	}
 
@@ -493,12 +495,12 @@
 /**
  * Retrieves the EngineRenew that specifies the replacement of the given
  * engine type from the given renewlist */
-static EngineRenew *GetEngineReplacement(EngineRenewList erl, EngineID engine)
+static EngineRenew *GetEngineReplacement(EngineRenewList erl, EngineID engine, GroupID group)
 {
 	EngineRenew *er = (EngineRenew *)erl;
 
 	while (er) {
-		if (er->from == engine) return er;
+		if (er->from == engine && er->group_id == group) return er;
 		er = er->next;
 	}
 	return NULL;
@@ -517,18 +519,18 @@
 	*erl = NULL; // Empty list
 }
 
-EngineID EngineReplacement(EngineRenewList erl, EngineID engine)
+EngineID EngineReplacement(EngineRenewList erl, EngineID engine, GroupID group)
 {
-	const EngineRenew *er = GetEngineReplacement(erl, engine);
+	const EngineRenew *er = GetEngineReplacement(erl, engine, group);
 	return er == NULL ? INVALID_ENGINE : er->to;
 }
 
-int32 AddEngineReplacement(EngineRenewList *erl, EngineID old_engine, EngineID new_engine, uint32 flags)
+int32 AddEngineReplacement(EngineRenewList *erl, EngineID old_engine, EngineID new_engine, GroupID group, uint32 flags)
 {
 	EngineRenew *er;
 
 	/* Check if the old vehicle is already in the list */
-	er = GetEngineReplacement(*erl, old_engine);
+	er = GetEngineReplacement(*erl, old_engine, group);
 	if (er != NULL) {
 		if (flags & DC_EXEC) er->to = new_engine;
 		return 0;
@@ -540,6 +542,7 @@
 	if (flags & DC_EXEC) {
 		er->from = old_engine;
 		er->to = new_engine;
+		er->group_id = group;
 
 		/* Insert before the first element */
 		er->next = (EngineRenew *)(*erl);
@@ -549,14 +552,14 @@
 	return 0;
 }
 
-int32 RemoveEngineReplacement(EngineRenewList *erl, EngineID engine, uint32 flags)
+int32 RemoveEngineReplacement(EngineRenewList *erl, EngineID engine, GroupID group, uint32 flags)
 {
 	EngineRenew *er = (EngineRenew *)(*erl);
 	EngineRenew *prev = NULL;
 
 	while (er)
 	{
-		if (er->from == engine) {
+		if (er->from == engine && er->group_id == group) {
 			if (flags & DC_EXEC) {
 				if (prev == NULL) { // First element
 					/* The second becomes the new first element */
@@ -577,11 +580,11 @@
 }
 
 static const SaveLoad _engine_renew_desc[] = {
-	SLE_VAR(EngineRenew, from, SLE_UINT16),
-	SLE_VAR(EngineRenew, to,   SLE_UINT16),
+	    SLE_VAR(EngineRenew, from,     SLE_UINT16),
+	    SLE_VAR(EngineRenew, to,       SLE_UINT16),
 
-	SLE_REF(EngineRenew, next, REF_ENGINE_RENEWS),
-
+	    SLE_REF(EngineRenew, next,     REF_ENGINE_RENEWS),
+	SLE_CONDVAR(EngineRenew, group_id, SLE_UINT16, 60, SL_MAX_VERSION),
 	SLE_END()
 };
 
@@ -607,6 +610,9 @@
 
 		er = GetEngineRenew(index);
 		SlObject(er, _engine_renew_desc);
+
+		/* Advanced vehicle lists got added */
+		if (CheckSavegameVersion(60)) er->group_id = DEFAULT_GROUP;
 	}
 }