(Mostly) updated verve implementation.

Engine/source/Verve/VActor/VInterpController.h

@@ -0,0 +1,207 @@
+//-----------------------------------------------------------------------------
+// Verve
+// Copyright (C) 2014 - Violent Tulip
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//-----------------------------------------------------------------------------
+#ifndef _VT_VINTERPCONTROLLER_H_
+#define _VT_VINTERPCONTROLLER_H_
+
+#ifndef _MATH_H_
+#include "math/mMath.h"
+#endif
+
+//-----------------------------------------------------------------------------
+
+class VInterpController
+{
+protected:
+
+    Point3F    mPosition[2];
+    QuatF      mRotation[2];
+
+public:
+    
+    //-------------------------------------------------------------------------
+    // Interpolation Methods.
+    //-------------------------------------------------------------------------
+
+    /// Get Position.
+    Point3F getPosition( const F32 &pDelta )
+    {
+        // Interpolate Position.
+        Point3F interpPosition;
+        interpPosition.interpolate( mPosition[1], mPosition[0], pDelta );
+        // Return Interpolated Point.
+        return interpPosition;
+    };
+
+    /// Get Rotation.
+    QuatF getRotation( const F32 &pDelta )
+    {
+        // Interpolate Rotation.
+        QuatF interpRotation;
+        interpRotation.interpolate( mRotation[1], mRotation[0], pDelta );
+        // Return Interpolated Quat.
+        return interpRotation;
+    };
+
+    /// Get Transform.
+    MatrixF getTransform( const F32 &pDelta )
+    {
+        // Get Position.
+        const Point3F interpPosition = getPosition( pDelta );
+        // Get Rotation.
+        const QuatF interpRotation = getRotation( pDelta );
+
+        // Setup Matrix.
+        MatrixF transform;
+        interpRotation.setMatrix( &transform );
+        // Set Position.
+        transform.setPosition( interpPosition );
+
+        // Return Matrix.
+        return transform;
+    };
+    
+    //-------------------------------------------------------------------------
+    // Delta Methods.
+    //-------------------------------------------------------------------------
+
+    /// Reset Delta.
+    void resetDelta( const Point3F &pPosition, const QuatF &pRotation )
+    {
+        mPosition[0] = mPosition[1] = pPosition;
+        mRotation[0] = mRotation[1] = pRotation;
+    };
+
+    /// Reset Delta.
+    void resetDelta( const MatrixF &pMatrix )
+    {
+        // Setup Quat.
+        QuatF rotationQuat( pMatrix );
+        // Reset Delta.
+        resetDelta( pMatrix.getPosition(), rotationQuat );
+    };
+
+    /// Reset Delta (Vector)
+    void resetDelta( const Point3F &pPosition, const VectorF &pForwardVector )
+    {
+        // Assert.
+        AssertFatal( pForwardVector.isUnitLength(), "VInterpController::resetDelta() - Forward Vector hasn't been Normalized." );
+
+        // Static Up Vector.
+        static const VectorF sUpVector( 0.f, 0.f, 1.f );
+
+        // X-Axis.
+        VectorF xVec = mCross( pForwardVector, sUpVector );
+        xVec.normalize();
+        // Z-Axis.
+        VectorF zVec = mCross( xVec, pForwardVector );
+        zVec.normalize();
+
+        // Setup Object Transform.
+        MatrixF transform;
+        transform.setColumn( 0, xVec );
+        transform.setColumn( 1, pForwardVector );
+        transform.setColumn( 2, zVec );
+        transform.setColumn( 3, pPosition );
+
+        // Reset Delta.
+        resetDelta( transform );
+    };
+
+    /// Reset Delta (AngAxis)
+    void resetDelta( const Point3F &pPosition, const AngAxisF &pAngAxis )
+    {
+        // Setup Matrix.
+        MatrixF transform;
+        pAngAxis.setMatrix( &transform );
+        // Set Position.
+        transform.setPosition( pPosition );
+
+        // Reset Delta.
+        resetDelta( transform );
+    };
+
+    /// Push Delta.
+    void pushDelta( const Point3F &pPosition, const QuatF &pRotation )
+    {
+        mPosition[1] = pPosition;
+        mRotation[1] = pRotation;
+    };
+
+    /// Push Delta (Matrix)
+    void pushDelta( const MatrixF &pMatrix )
+    {
+        // Setup Quat.
+        QuatF rotationQuat( pMatrix );
+        // Push Delta.
+        pushDelta( pMatrix.getPosition(), rotationQuat );
+    };
+
+    /// Push Delta (Vector)
+    void pushDelta( const Point3F &pPosition, const VectorF &pForwardVector )
+    {
+        // Assert.
+        AssertFatal( pForwardVector.isUnitLength(), "VInterpController::pushDelta() - Forward Vector hasn't been Normalized." );
+
+        // Static Up Vector.
+        static const VectorF sUpVector( 0.f, 0.f, 1.f );
+
+        // X-Axis.
+        VectorF xVec = mCross( pForwardVector, sUpVector );
+        xVec.normalize();
+        // Z-Axis.
+        VectorF zVec = mCross( xVec, pForwardVector );
+        zVec.normalize();
+
+        // Setup Object Transform.
+        MatrixF transform;
+        transform.setColumn( 0, xVec );
+        transform.setColumn( 1, pForwardVector );
+        transform.setColumn( 2, zVec );
+        transform.setColumn( 3, pPosition );
+
+        // Push Delta.
+        pushDelta( transform );
+    };
+
+    /// Push Delta (AngAxis)
+    void pushDelta( const Point3F &pPosition, const AngAxisF &pAngAxis )
+    {
+        // Setup Matrix.
+        MatrixF transform;
+        pAngAxis.setMatrix( &transform );
+        // Set Position.
+        transform.setPosition( pPosition );
+
+        // Push Delta.
+        pushDelta( transform );
+    };
+
+    /// Pop Delta.
+    void popDelta( void )
+    {
+        mPosition[0] = mPosition[1];
+        mRotation[0] = mRotation[1];
+    };
+};
+
+#endif // _VT_VINTERPCONTROLLER_H_