1 files changed, 42 insertions, 0 deletions
diff --git a/public/keyframe/keyframe.h b/public/keyframe/keyframe.h
new file mode 100644
index 0000000..b2cfd27
--- /dev/null
+++ b/public/keyframe/keyframe.h
@@ -0,0 +1,42 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: Keyframed animation header
+//			shared between game and tools
+//=============================================================================//
+
+#ifndef KEYFRAME_H
+#define KEYFRAME_H
+#pragma once
+
+
+class IPositionInterpolator
+{
+public:
+	virtual void		Release() = 0;
+
+	virtual void		GetDetails( char **outName, int *outMinKeyReq, int *outMaxKeyReq ) = 0;
+	virtual void		SetKeyPosition( int keyNum, Vector const &vPos ) = 0;
+	virtual void		InterpolatePosition( float time, Vector &vOut ) = 0;
+	
+	// Returns true if the key causes a change that changes the interpolated positions.
+	virtual bool		ProcessKey( char const *pName, char const *pValue ) = 0;
+};
+
+
+// Time modifiers.
+int Motion_GetNumberOfTimeModifiers( void );
+bool Motion_GetTimeModifierDetails( int timeInterpNum, const char **outName );
+bool Motion_CalculateModifiedTime( float time, int timeModifierFuncNum, float *outNewTime );
+
+// Position interpolators.
+int Motion_GetNumberOfPositionInterpolators( void );
+IPositionInterpolator* Motion_GetPositionInterpolator( int interpNum );
+
+// Rotation interpolators.
+int Motion_GetNumberOfRotationInterpolators( void );
+bool Motion_GetRotationInterpolatorDetails( int rotInterpNum, char **outName, int *outMinKeyReq, int *outMaxKeyReq );
+bool Motion_InterpolateRotation( float time, int interpFuncNum, Quaternion &outQuatRotation );
+bool Motion_SetKeyAngles( int keyNum, Quaternion &quatAngles );
+
+
+#endif // KEYFRAME_H