From c3249d599fb4805b6c59e89c28c4d2720a7bcae0 Mon Sep 17 00:00:00 2001
From: truebrain <truebrain@openttd.org>
Date: Tue, 13 Jan 2009 14:00:26 +0000
Subject: (svn r15059) -Add [NoAI]: use 'start_date' from the AI configure to
 see when an AI should start next

---
 src/ai/ai.hpp      | 14 ++++++++++++++
 src/ai/ai_core.cpp | 22 ++++++++++++++++++++++
 src/ai/ai_info.cpp |  8 ++++----
 3 files changed, 40 insertions(+), 4 deletions(-)

(limited to 'src/ai')

diff --git a/src/ai/ai.hpp b/src/ai/ai.hpp
index 0bf0a1991..214b9e119 100644
--- a/src/ai/ai.hpp
+++ b/src/ai/ai.hpp
@@ -17,6 +17,15 @@ void CcAI(bool success, TileIndex tile, uint32 p1, uint32 p2);
 
 class AI {
 public:
+	/**
+	 * The default months AIs start after eachother.
+	 */
+	enum StartNext {
+		START_NEXT_EASY   = 48,
+		START_NEXT_MEDIUM = 24,
+		START_NEXT_HARD   = 12,
+	};
+
 	/**
 	 * Is it possible to start a new AI company?
 	 * @return True if a new AI company can be started.
@@ -88,6 +97,11 @@ public:
 	 */
 	static void Load(CompanyID company, int version);
 
+	/**
+	 * Get the number of months before the next AI should start.
+	 */
+	static int GetStartNextTime();
+
 	static char *GetConsoleList(char *p, const char *last);
 	static const AIInfoList *GetInfoList();
 	static AIInfo *FindInfo(const char *name, int version);
diff --git a/src/ai/ai_core.cpp b/src/ai/ai_core.cpp
index 3d8fc7707..f5703e58d 100644
--- a/src/ai/ai_core.cpp
+++ b/src/ai/ai_core.cpp
@@ -227,6 +227,28 @@ void CcAI(bool success, TileIndex tile, uint32 p1, uint32 p2)
 	}
 }
 
+/* static */ int AI::GetStartNextTime()
+{
+	for (CompanyID c = COMPANY_FIRST; c < MAX_COMPANIES; c++) {
+		if (IsValidCompanyID(c)) continue;
+
+		AIConfig *config = AIConfig::GetConfig(c);
+		if (config->HasAI()) return config->GetSetting("start_date");
+
+		/* No AI configured, so fall back to some defaults */
+		switch (_settings_game.difficulty.diff_level) {
+			case 0: return AI::START_NEXT_EASY;
+			case 1: return AI::START_NEXT_MEDIUM;
+			case 2: return AI::START_NEXT_HARD;
+			case 3: return AI::START_NEXT_MEDIUM;
+			default: NOT_REACHED();
+		}
+	}
+
+	/* Currently no AI can be started, check again in a year. */
+	return 12;
+}
+
 /* static */ char *AI::GetConsoleList(char *p, const char *last)
 {
 	return AI::ai_scanner->GetAIConsoleList(p, last);
diff --git a/src/ai/ai_info.cpp b/src/ai/ai_info.cpp
index c68972c45..2b076536e 100644
--- a/src/ai/ai_info.cpp
+++ b/src/ai/ai_info.cpp
@@ -156,10 +156,10 @@ void AIFileInfo::CheckMethods(SQInteger *res, const char *name)
 	config.description = strdup("The amount of months after the start of the last AI, this AI will start (give or take).");
 	config.min_value = 0;
 	config.max_value = 120;
-	config.easy_value = 48;
-	config.medium_value = 24;
-	config.hard_value = 12;
-	config.custom_value = 24;
+	config.easy_value   = AI::START_NEXT_EASY;
+	config.medium_value = AI::START_NEXT_MEDIUM;
+	config.hard_value   = AI::START_NEXT_HARD;
+	config.custom_value = AI::START_NEXT_MEDIUM;
 	config.flags = AICONFIG_NONE;
 	info->config_list.push_back(config);
 
-- 
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