1 files changed, 85 insertions, 0 deletions
diff --git a/src/script/api/script_subsidy.cpp b/src/script/api/script_subsidy.cpp
new file mode 100644
index 000000000..f770d29f7
--- /dev/null
+++ b/src/script/api/script_subsidy.cpp
@@ -0,0 +1,85 @@
+/* $Id$ */
+
+/*
+ * This file is part of OpenTTD.
+ * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
+ * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/** @file script_subsidy.cpp Implementation of AISubsidy. */
+
+#include "../../stdafx.h"
+#include "script_subsidy.hpp"
+#include "script_date.hpp"
+#include "../../subsidy_base.h"
+#include "../../station_base.h"
+
+/* static */ bool AISubsidy::IsValidSubsidy(SubsidyID subsidy_id)
+{
+	return ::Subsidy::IsValidID(subsidy_id);
+}
+
+/* static */ bool AISubsidy::IsAwarded(SubsidyID subsidy_id)
+{
+	if (!IsValidSubsidy(subsidy_id)) return false;
+
+	return ::Subsidy::Get(subsidy_id)->IsAwarded();
+}
+
+/* static */ AICompany::CompanyID AISubsidy::GetAwardedTo(SubsidyID subsidy_id)
+{
+	if (!IsAwarded(subsidy_id)) return AICompany::COMPANY_INVALID;
+
+	return (AICompany::CompanyID)((byte)::Subsidy::Get(subsidy_id)->awarded);
+}
+
+/* static */ int32 AISubsidy::GetExpireDate(SubsidyID subsidy_id)
+{
+	if (!IsValidSubsidy(subsidy_id)) return -1;
+
+	int year = AIDate::GetYear(AIDate::GetCurrentDate());
+	int month = AIDate::GetMonth(AIDate::GetCurrentDate());
+
+	month += ::Subsidy::Get(subsidy_id)->remaining;
+
+	year += (month - 1) / 12;
+	month = ((month - 1) % 12) + 1;
+
+	return AIDate::GetDate(year, month, 1);
+}
+
+/* static */ CargoID AISubsidy::GetCargoType(SubsidyID subsidy_id)
+{
+	if (!IsValidSubsidy(subsidy_id)) return CT_INVALID;
+
+	return ::Subsidy::Get(subsidy_id)->cargo_type;
+}
+
+/* static */ AISubsidy::SubsidyParticipantType AISubsidy::GetSourceType(SubsidyID subsidy_id)
+{
+	if (!IsValidSubsidy(subsidy_id)) return SPT_INVALID;
+
+	return (SubsidyParticipantType)(uint)::Subsidy::Get(subsidy_id)->src_type;
+}
+
+/* static */ int32 AISubsidy::GetSourceIndex(SubsidyID subsidy_id)
+{
+	if (!IsValidSubsidy(subsidy_id)) return INVALID_STATION;
+
+	return ::Subsidy::Get(subsidy_id)->src;
+}
+
+/* static */ AISubsidy::SubsidyParticipantType AISubsidy::GetDestinationType(SubsidyID subsidy_id)
+{
+	if (!IsValidSubsidy(subsidy_id)) return SPT_INVALID;
+
+	return (SubsidyParticipantType)(uint)::Subsidy::Get(subsidy_id)->dst_type;
+}
+
+/* static */ int32 AISubsidy::GetDestinationIndex(SubsidyID subsidy_id)
+{
+	if (!IsValidSubsidy(subsidy_id)) return INVALID_STATION;
+
+	return ::Subsidy::Get(subsidy_id)->dst;
+}