1 files changed, 161 insertions, 0 deletions
diff --git a/source/gameengine/GameLogic/SCA_ExpressionController.cpp b/source/gameengine/GameLogic/SCA_ExpressionController.cpp
new file mode 100644
index 00000000000..56934a695f2
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+++ b/source/gameengine/GameLogic/SCA_ExpressionController.cpp
@@ -0,0 +1,161 @@
+/**
+ * 'Expression Controller enables to calculate an expression that wires inputs to output
+ *
+ * $Id$
+ *
+ * ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
+ *
+ * This program 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; either version 2
+ * of the License, or (at your option) any later version. The Blender
+ * Foundation also sells licenses for use in proprietary software under
+ * the Blender License.  See http://www.blender.org/BL/ for information
+ * about this.
+ *
+ * This program 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 this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
+ * All rights reserved.
+ *
+ * The Original Code is: all of this file.
+ *
+ * Contributor(s): none yet.
+ *
+ * ***** END GPL/BL DUAL LICENSE BLOCK *****
+ */
+
+
+#include "SCA_ExpressionController.h"
+#include "SCA_ISensor.h"
+#include "SCA_LogicManager.h"
+#include "BoolValue.h"
+#include "InputParser.h"
+
+#include "MT_Transform.h" // for fuzzyZero
+
+/* ------------------------------------------------------------------------- */
+/* Native functions                                                          */
+/* ------------------------------------------------------------------------- */
+
+SCA_ExpressionController::SCA_ExpressionController(SCA_IObject* gameobj,
+												   const STR_String& exprtext,
+												   PyTypeObject* T)
+	:SCA_IController(gameobj,T),
+	m_exprText(exprtext)
+{
+}
+
+
+
+SCA_ExpressionController::~SCA_ExpressionController()
+{
+}
+
+
+
+CValue* SCA_ExpressionController::GetReplica()
+{
+	SCA_ExpressionController* replica = new SCA_ExpressionController(*this);
+	replica->m_exprText = m_exprText;
+	// this will copy properties and so on...
+	CValue::AddDataToReplica(replica);
+
+	return replica;
+}
+
+
+
+void SCA_ExpressionController::Trigger(SCA_LogicManager* logicmgr)
+{
+
+	bool expressionresult = false;
+
+	CParser parser;
+	parser.SetContext(this->AddRef());
+	CExpression* expr = parser.ProcessText(m_exprText);
+	if (expr)
+	{
+		CValue* value = expr->Calculate();
+		if (value)
+		{
+			if (value->IsError())
+			{
+				printf(value->GetText());
+			} else
+			{
+				float num = value->GetNumber();
+				expressionresult = !MT_fuzzyZero(num);
+			}
+			value->Release();
+
+		}
+		expr->Release();
+	}
+
+	/*
+
+	for (vector<SCA_ISensor*>::const_iterator is=m_linkedsensors.begin();
+	!(is==m_linkedsensors.end());is++)
+	{
+		SCA_ISensor* sensor = *is;
+		if (!sensor->IsPositiveTrigger())
+		{
+			sensorresult = false;
+			break;
+		}
+	}
+	
+	  */
+	
+	CValue* newevent = new CBoolValue(expressionresult);
+
+	for (vector<SCA_IActuator*>::const_iterator i=m_linkedactuators.begin();
+	!(i==m_linkedactuators.end());i++)
+	{
+		SCA_IActuator* actua = *i;
+		logicmgr->AddActiveActuator(actua,newevent);
+	}
+	//printf("expr %d.",expressionresult);
+	// every actuator that needs the event, has a it's own reference to it now so
+	// release it (so to be clear: if there is no actuator, it's deleted right now)
+	newevent->Release();
+}
+
+
+
+CValue* SCA_ExpressionController::FindIdentifier(const STR_String& identifiername)
+{
+
+	CValue* identifierval = NULL;
+
+	for (vector<SCA_ISensor*>::const_iterator is=m_linkedsensors.begin();
+	!(is==m_linkedsensors.end());is++)
+	{
+		SCA_ISensor* sensor = *is;
+		if (sensor->GetName() == identifiername)
+		{
+			identifierval = new CBoolValue(sensor->IsPositiveTrigger());
+			//identifierval = sensor->AddRef();
+		}
+
+		//if (!sensor->IsPositiveTrigger())
+		//{
+		//	sensorresult = false;
+		//	break;
+		//}
+	}
+
+	if (identifierval)
+		return identifierval;
+
+	return  GetParent()->FindIdentifier(identifiername);
+
+}