122 lines
4.9 KiB
C++
122 lines
4.9 KiB
C++
/********************************************************************************
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* ReactPhysics3D physics library, http://www.reactphysics3d.com *
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* Copyright (c) 2010-2016 Daniel Chappuis *
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*********************************************************************************
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* *
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* This software is provided 'as-is', without any express or implied warranty. *
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* In no event will the authors be held liable for any damages arising from the *
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* use of this software. *
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* *
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* Permission is granted to anyone to use this software for any purpose, *
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* including commercial applications, and to alter it and redistribute it *
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* freely, subject to the following restrictions: *
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* *
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* 1. The origin of this software must not be misrepresented; you must not claim *
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* that you wrote the original software. If you use this software in a *
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* product, an acknowledgment in the product documentation would be *
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* appreciated but is not required. *
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* *
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* 2. Altered source versions must be plainly marked as such, and must not be *
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* misrepresented as being the original software. *
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* *
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* 3. This notice may not be removed or altered from any source distribution. *
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* *
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********************************************************************************/
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#ifndef HEIGHT_FIELD_H
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#define HEIGHT_FIELD_H
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// Libraries
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#include "openglframework.h"
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#include "reactphysics3d.h"
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#include "PhysicsObject.h"
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// Class HeightField
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class HeightField : public openglframework::Mesh, public PhysicsObject {
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private :
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static const int NB_POINTS_WIDTH = 100;
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static const int NB_POINTS_LENGTH = 100;
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// -------------------- Attributes -------------------- //
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/// Height field data
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float mHeightData[NB_POINTS_WIDTH * NB_POINTS_LENGTH];
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/// Previous transform (for interpolation)
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rp3d::Transform mPreviousTransform;
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/// Collision shape
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rp3d::HeightFieldShape* mHeightFieldShape;
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rp3d::ProxyShape* mProxyShape;
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/// Scaling matrix
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openglframework::Matrix4 mScalingMatrix;
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/// Vertex Buffer Object for the vertices data
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openglframework::VertexBufferObject mVBOVertices;
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/// Vertex Buffer Object for the normals data
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openglframework::VertexBufferObject mVBONormals;
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/// Vertex Buffer Object for the texture coords
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openglframework::VertexBufferObject mVBOTextureCoords;
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/// Vertex Buffer Object for the indices
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openglframework::VertexBufferObject mVBOIndices;
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/// Vertex Array Object for the vertex data
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openglframework::VertexArrayObject mVAO;
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/// Min/Max height of the height field values
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float mMinHeight, mMaxHeight;
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// -------------------- Methods -------------------- //
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/// Create the Vertex Buffer Objects used to render with OpenGL.
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void createVBOAndVAO();
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/// Compute the heights of the height field
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void generateHeightField();
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/// Generate the graphics mesh to render the height field
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void generateGraphicsMesh();
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public :
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// -------------------- Methods -------------------- //
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/// Constructor
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HeightField(const openglframework::Vector3& position,
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rp3d::CollisionWorld* world);
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/// Constructor
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HeightField(const openglframework::Vector3& position, float mass,
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rp3d::DynamicsWorld* dynamicsWorld);
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/// Destructor
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~HeightField();
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/// Render the mesh at the correct position and with the correct orientation
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void render(openglframework::Shader& shader,
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const openglframework::Matrix4& worldToCameraMatrix);
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/// Set the position of the box
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void resetTransform(const rp3d::Transform& transform);
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/// Update the transform matrix of the object
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virtual void updateTransform(float interpolationFactor) override;
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/// Set the scaling of the object
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void setScaling(const openglframework::Vector3& scaling);
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};
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// Update the transform matrix of the object
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inline void HeightField::updateTransform(float interpolationFactor) {
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mTransformMatrix = computeTransform(interpolationFactor, mScalingMatrix);
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}
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#endif
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