From 78054d7ad57a19c9682627fc8cda4dc175e2b460 Mon Sep 17 00:00:00 2001
From: rubidium <rubidium@openttd.org>
Date: Tue, 7 Dec 2010 21:08:35 +0000
Subject: [PATCH] (svn r21427) -Add: helper function to determine whether a
 command may be executed

---
 src/command.cpp    | 25 +++++++++++++++++++++++++
 src/command_func.h |  2 ++
 2 files changed, 27 insertions(+)

diff --git a/src/command.cpp b/src/command.cpp
index 70717d777f..be30d11e6b 100644
--- a/src/command.cpp
+++ b/src/command.cpp
@@ -349,6 +349,31 @@ const char *GetCommandName(uint32 cmd)
 	return _command_proc_table[cmd & CMD_ID_MASK].name;
 }
 
+/**
+ * Returns whether the command is allowed while the game is paused.
+ * @param cmd The command to check.
+ * @return True if the command is allowed while paused, false otherwise.
+ */
+bool IsCommandAllowedWhilePaused(uint32 cmd)
+{
+	/* Lookup table for the command types that are allowed for a given pause level setting. */
+	static const int command_type_lookup[] = {
+		CMDPL_ALL_ACTIONS,     ///< CMDT_LANDSCAPE_CONSTRUCTION
+		CMDPL_NO_LANDSCAPING,  ///< CMDT_VEHICLE_CONSTRUCTION
+		CMDPL_NO_LANDSCAPING,  ///< CMDT_MONEY_MANAGEMENT
+		CMDPL_NO_CONSTRUCTION, ///< CMDT_VEHICLE_MANAGEMENT
+		CMDPL_NO_CONSTRUCTION, ///< CMDT_ROUTE_MANAGEMENT
+		CMDPL_NO_CONSTRUCTION, ///< CMDT_OTHER_MANAGEMENT
+		CMDPL_NO_CONSTRUCTION, ///< CMDT_COMPANY_SETTING
+		CMDPL_NO_ACTIONS,      ///< CMDT_SERVER_SETTING
+	};
+	assert_compile(lengthof(command_type_lookup) == CMDT_END);
+
+	assert(IsValidCommand(cmd));
+	return command_type_lookup[_command_proc_table[cmd & CMD_ID_MASK].type] <= _settings_game.construction.command_pause_level;
+}
+
+
 static int _docommand_recursive = 0;
 
 /**
diff --git a/src/command_func.h b/src/command_func.h
index 3ed4d1e605..212e71ddf2 100644
--- a/src/command_func.h
+++ b/src/command_func.h
@@ -75,6 +75,8 @@ const char *GetCommandName(uint32 cmd);
  */
 Money GetAvailableMoneyForCommand();
 
+bool IsCommandAllowedWhilePaused(uint32 cmd);
+
 /**
  * Extracts the DC flags needed for DoCommand from the flags returned by GetCommandFlags
  * @param cmd_flags Flags from GetCommandFlags