From e3591f8a1d0b0e5a84cc8b9d45bb5809a622d1f2 Mon Sep 17 00:00:00 2001
From: yexo <yexo@openttd.org>
Date: Mon, 15 Mar 2010 22:42:43 +0000
Subject: [PATCH] (svn r19429) -Fix: when the title game contains an AIPL block
 the AI settinsg where overwritten by those from the title game

---
 src/ai/ai_config.cpp   |  8 ++++----
 src/ai/ai_config.hpp   | 10 +++++++++-
 src/saveload/ai_sl.cpp |  4 ++--
 src/settings.cpp       |  6 +++---
 4 files changed, 18 insertions(+), 10 deletions(-)

diff --git a/src/ai/ai_config.cpp b/src/ai/ai_config.cpp
index c0ae018480..aab8b1f187 100644
--- a/src/ai/ai_config.cpp
+++ b/src/ai/ai_config.cpp
@@ -93,13 +93,13 @@ const AIConfigItemList *AIConfig::GetConfigList()
 	return this->config_list;
 }
 
-AIConfig *AIConfig::GetConfig(CompanyID company, bool forceNewgameSetting)
+AIConfig *AIConfig::GetConfig(CompanyID company, AISettingSource source)
 {
 	AIConfig **config;
-	if (!forceNewgameSetting) {
-		config = (_game_mode == GM_MENU) ? &_settings_newgame.ai_config[company] : &_settings_game.ai_config[company];
-	} else {
+	if (source == AISS_FORCE_NEWGAME || (source == AISS_DEFAULT && _game_mode == GM_MENU)) {
 		config = &_settings_newgame.ai_config[company];
+	} else {
+		config = &_settings_game.ai_config[company];
 	}
 	if (*config == NULL) *config = new AIConfig();
 	return *config;
diff --git a/src/ai/ai_config.hpp b/src/ai/ai_config.hpp
index 314082aa44..98e98263c1 100644
--- a/src/ai/ai_config.hpp
+++ b/src/ai/ai_config.hpp
@@ -61,10 +61,18 @@ public:
 	 */
 	const AIConfigItemList *GetConfigList();
 
+	/* Where to get the config from, either default (depends on current game
+	 * mode) or force either newgame or normal */
+	enum AISettingSource {
+		AISS_DEFAULT,       ///< Get the AI config from the current game mode
+		AISS_FORCE_NEWGAME, ///< Get the newgame AI config
+		AISS_FORCE_GAME,    ///< Get the AI config from the current game
+	};
+
 	/**
 	 * Get the config of a company.
 	 */
-	static AIConfig *GetConfig(CompanyID company, bool forceNewgameSetting = false);
+	static AIConfig *GetConfig(CompanyID company, AISettingSource source = AISS_DEFAULT);
 
 	/**
 	 * Get the value of a setting for this config. It might fallback to his
diff --git a/src/saveload/ai_sl.cpp b/src/saveload/ai_sl.cpp
index a9ae300203..6a8fb2b1a3 100644
--- a/src/saveload/ai_sl.cpp
+++ b/src/saveload/ai_sl.cpp
@@ -61,7 +61,7 @@ static void Load_AIPL()
 {
 	/* Free all current data */
 	for (CompanyID c = COMPANY_FIRST; c < MAX_COMPANIES; c++) {
-		AIConfig::GetConfig(c)->ChangeAI(NULL);
+		AIConfig::GetConfig(c, AIConfig::AISS_FORCE_GAME)->ChangeAI(NULL);
 	}
 
 	CompanyID index;
@@ -74,7 +74,7 @@ static void Load_AIPL()
 			continue;
 		}
 
-		AIConfig *config = AIConfig::GetConfig(index);
+		AIConfig *config = AIConfig::GetConfig(index, AIConfig::AISS_FORCE_GAME);
 		if (StrEmpty(_ai_saveload_name)) {
 			/* A random AI. */
 			config->ChangeAI(NULL, -1, false, true);
diff --git a/src/settings.cpp b/src/settings.cpp
index 46da600aae..fc7df844a2 100644
--- a/src/settings.cpp
+++ b/src/settings.cpp
@@ -1202,7 +1202,7 @@ static void AILoadConfig(IniFile *ini, const char *grpname)
 
 	/* Clean any configured AI */
 	for (CompanyID c = COMPANY_FIRST; c < MAX_COMPANIES; c++) {
-		AIConfig::GetConfig(c, true)->ChangeAI(NULL);
+		AIConfig::GetConfig(c, AIConfig::AISS_FORCE_NEWGAME)->ChangeAI(NULL);
 	}
 
 	/* If no group exists, return */
@@ -1210,7 +1210,7 @@ static void AILoadConfig(IniFile *ini, const char *grpname)
 
 	CompanyID c = COMPANY_FIRST;
 	for (item = group->item; c < MAX_COMPANIES && item != NULL; c++, item = item->next) {
-		AIConfig *config = AIConfig::GetConfig(c, true);
+		AIConfig *config = AIConfig::GetConfig(c, AIConfig::AISS_FORCE_NEWGAME);
 
 		config->ChangeAI(item->name);
 		if (!config->HasAI()) {
@@ -1313,7 +1313,7 @@ static void AISaveConfig(IniFile *ini, const char *grpname)
 	group->Clear();
 
 	for (CompanyID c = COMPANY_FIRST; c < MAX_COMPANIES; c++) {
-		AIConfig *config = AIConfig::GetConfig(c, true);
+		AIConfig *config = AIConfig::GetConfig(c, AIConfig::AISS_FORCE_NEWGAME);
 		const char *name;
 		char value[1024];
 		config->SettingsToString(value, lengthof(value));