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-rw-r--r--src/script/api/script_testmode.cpp41
1 files changed, 41 insertions, 0 deletions
diff --git a/src/script/api/script_testmode.cpp b/src/script/api/script_testmode.cpp
new file mode 100644
index 000000000..a2e696f59
--- /dev/null
+++ b/src/script/api/script_testmode.cpp
@@ -0,0 +1,41 @@
+/* $Id$ */
+
+/*
+ * 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_testmode.cpp Implementation of AITestMode. */
+
+#include "../../stdafx.h"
+#include "script_testmode.hpp"
+#include "../../company_base.h"
+#include "../../company_func.h"
+#include "../../ai/ai_instance.hpp"
+
+bool AITestMode::ModeProc()
+{
+ /* In test mode we only return 'false', telling the DoCommand it
+ * should stop after testing the command and return with that result. */
+ return false;
+}
+
+AITestMode::AITestMode()
+{
+ this->last_mode = this->GetDoCommandMode();
+ this->last_instance = this->GetDoCommandModeInstance();
+ this->SetDoCommandMode(&AITestMode::ModeProc, this);
+}
+
+AITestMode::~AITestMode()
+{
+ if (this->GetDoCommandModeInstance() != this) {
+ /* Ignore this error if the AI already died. */
+ if (!AIObject::GetActiveInstance()->IsDead()) {
+ throw AI_FatalError("AITestmode object was removed while it was not the latest AI*Mode object created.");
+ }
+ }
+ this->SetDoCommandMode(this->last_mode, this->last_instance);
+}