BGE: Add level mode to property actuator

This patch adds to the existing property actuator a level mode, which is switching the property depending on the input level.

Reviewers: moguri

Reviewed By: moguri

Differential Revision: https://developer.blender.org/D652

2 files changed, 28 insertions, 3 deletions

diff --git a/source/gameengine/GameLogic/SCA_PropertyActuator.cpp b/source/gameengine/GameLogic/SCA_PropertyActuator.cpp
index 0eab6187d07..ea1b2a2bce3 100644
--- a/source/gameengine/GameLogic/SCA_PropertyActuator.cpp
+++ b/source/gameengine/GameLogic/SCA_PropertyActuator.cpp
@@ -69,13 +69,24 @@ bool SCA_PropertyActuator::Update()
 
 	bool bNegativeEvent = IsNegativeEvent();
 	RemoveAllEvents();
-
+	CValue* propowner = GetParent();
 
 	if (bNegativeEvent)
-		return false; // do nothing on negative events
+	{
+		if (m_type==KX_ACT_PROP_LEVEL)
+		{
+			CValue* newval = new CBoolValue(false);
+			CValue* oldprop = propowner->GetProperty(m_propname);
+			if (oldprop)
+			{
+				oldprop->SetValue(newval);
+			}
+			newval->Release();
+		}
+		return false;
+	}
 
 
-	CValue* propowner = GetParent();
 	CParser parser;
 	parser.SetContext( propowner->AddRef());
 	
@@ -97,6 +108,19 @@ bool SCA_PropertyActuator::Update()
 		}
 		newval->Release();
 	}
+	else if (m_type==KX_ACT_PROP_LEVEL)
+	{
+		CValue* newval = new CBoolValue(true);
+		CValue* oldprop = propowner->GetProperty(m_propname);
+		if (oldprop)
+		{
+			oldprop->SetValue(newval);
+		} else
+		{
+			propowner->SetProperty(m_propname,newval);
+		}
+		newval->Release();
+	}
 	else if ((userexpr = parser.ProcessText(m_exprtxt))) {
 		switch (m_type)
 		{
diff --git a/source/gameengine/GameLogic/SCA_PropertyActuator.h b/source/gameengine/GameLogic/SCA_PropertyActuator.h
index 83a6d05df1b..228ecf94bc4 100644
--- a/source/gameengine/GameLogic/SCA_PropertyActuator.h
+++ b/source/gameengine/GameLogic/SCA_PropertyActuator.h
@@ -44,6 +44,7 @@ class SCA_PropertyActuator : public SCA_IActuator
 		KX_ACT_PROP_ADD,
 		KX_ACT_PROP_COPY,
 		KX_ACT_PROP_TOGGLE,
+		KX_ACT_PROP_LEVEL,
 		KX_ACT_PROP_MAX
 	};