ENGINES: Add a proper convertVector2Orientation() function

xoreos · Jan 21, 2014 · e0e4662 · e0e4662
1 parent 5e02db4
commit e0e4662
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diff --git a/src/engines/aurora/util.cpp b/src/engines/aurora/util.cpp
@@ -27,6 +27,9 @@
  *  Generic Aurora engines utility functions.
  */
 
+#include <OgreVector2.h>
+#include <OgreMath.h>
+
 #include "common/error.h"
 #include "common/stream.h"
 #include "common/file.h"
@@ -215,4 +218,15 @@ bool dump2DA(const Common::UString &name) {
 	return success;
 }
 
+void convertVector2Orientation(float vX, float vY, float &radian, float &x, float &y, float &z) {
+	Ogre::Vector2 xAxisVector(0.0, 1.0);
+	Ogre::Vector2 directionVector(vX, vY);
+
+	radian = -xAxisVector.angleBetween(directionVector).valueRadians();
+
+	x = 0.0;
+	y = 1.0;
+	z = 0.0;
+}
+
 } // End of namespace Engines
diff --git a/src/engines/aurora/util.h b/src/engines/aurora/util.h
@@ -77,6 +77,8 @@ bool dumpTGA(const Common::UString &name);
 /** Debug method to quickly dump a 2DA to disk. */
 bool dump2DA(const Common::UString &name);
 
+void convertVector2Orientation(float vX, float vY, float &radian, float &x, float &y, float &z);
+
 } // End of namespace Engines
 
 #endif // ENGINES_AURORA_UTIL_H