146 lines
4.8 KiB
C++
146 lines
4.8 KiB
C++
// Copyright (C) 2002-2007 Nikolaus Gebhardt
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// This file is part of the "Irrlicht Engine".
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// For conditions of distribution and use, see copyright notice in irrlicht.h
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#ifndef __C_CAMERA_SCENE_NODE_H_INCLUDED__
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#define __C_CAMERA_SCENE_NODE_H_INCLUDED__
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#include "ICameraSceneNode.h"
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#include "SViewFrustum.h"
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namespace irr
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{
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namespace scene
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{
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class CCameraSceneNode : public ICameraSceneNode
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{
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public:
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//! constructor
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CCameraSceneNode(ISceneNode* parent, ISceneManager* mgr, s32 id,
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const core::vector3df& position = core::vector3df(0,0,0),
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const core::vector3df& lookat = core::vector3df(0,0,100));
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//! destructor
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virtual ~CCameraSceneNode();
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//! Sets the projection matrix of the camera. The core::matrix4 class has some methods
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//! to build a projection matrix. e.g: core::matrix4::buildProjectionMatrixPerspectiveFovLH
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//! \param projection: The new projection matrix of the camera.
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virtual void setProjectionMatrix(const core::matrix4& projection);
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//! Gets the current projection matrix of the camera
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//! \return Returns the current projection matrix of the camera.
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virtual const core::matrix4& getProjectionMatrix() const;
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//! Gets the current view matrix of the camera
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//! \return Returns the current view matrix of the camera.
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virtual const core::matrix4& getViewMatrix() const;
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//! It is possible to send mouse and key events to the camera. Most cameras
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//! may ignore this input, but camera scene nodes which are created for
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//! example with scene::ISceneManager::addMayaCameraSceneNode or
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//! scene::ISceneManager::addMeshViewerCameraSceneNode, may want to get this input
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//! for changing their position, look at target or whatever.
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virtual bool OnEvent(const SEvent& event);
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//! sets the look at target of the camera
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//! \param pos: Look at target of the camera.
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virtual void setTarget(const core::vector3df& pos);
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//! Gets the current look at target of the camera
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//! \return Returns the current look at target of the camera
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virtual core::vector3df getTarget() const;
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//! Sets the up vector of the camera.
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//! \param pos: New upvector of the camera.
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virtual void setUpVector(const core::vector3df& pos);
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//! Gets the up vector of the camera.
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//! \return Returns the up vector of the camera.
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virtual core::vector3df getUpVector() const;
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//! Gets distance from the camera to the near plane.
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//! \return Value of the near plane of the camera.
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virtual f32 getNearValue() const;
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//! Gets the distance from the camera to the far plane.
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//! \return Value of the far plane of the camera.
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virtual f32 getFarValue() const;
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//! Get the aspect ratio of the camera.
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//! \return The aspect ratio of the camera.
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virtual f32 getAspectRatio() const;
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//! Gets the field of view of the camera.
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//! \return Field of view of the camera
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virtual f32 getFOV() const;
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//! Sets the value of the near clipping plane. (default: 1.0f)
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virtual void setNearValue(f32 zn);
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//! Sets the value of the far clipping plane (default: 2000.0f)
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virtual void setFarValue(f32 zf);
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//! Sets the aspect ratio (default: 4.0f / 3.0f)
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virtual void setAspectRatio(f32 aspect);
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//! Sets the field of view (Default: PI / 3.5f)
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virtual void setFOV(f32 fovy);
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//! PreRender event
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virtual void OnRegisterSceneNode();
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//! Render
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virtual void render();
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//! Returns the axis aligned bounding box of this node
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virtual const core::aabbox3d<f32>& getBoundingBox() const;
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//! Returns the view area. Sometimes needed by bsp or lod render nodes.
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virtual const SViewFrustum* getViewFrustum() const;
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//! Disables or enables the camera to get key or mouse inputs.
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//! If this is set to true, the camera will respond to key inputs
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//! otherwise not.
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virtual void setInputReceiverEnabled(bool enabled);
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//! Returns if the input receiver of the camera is currently enabled.
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virtual bool isInputReceiverEnabled() const;
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//! Writes attributes of the scene node.
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virtual void serializeAttributes(io::IAttributes* out, io::SAttributeReadWriteOptions* options=0) const;
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//! Reads attributes of the scene node.
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virtual void deserializeAttributes(io::IAttributes* in, io::SAttributeReadWriteOptions* options=0);
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//! Returns type of the scene node
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virtual ESCENE_NODE_TYPE getType() const { return ESNT_CAMERA; }
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virtual core::vector3df getAbsolutePosition() const;
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protected:
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void recalculateProjectionMatrix();
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void recalculateViewArea();
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core::vector3df Target;
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core::vector3df UpVector;
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f32 Fovy; // Field of view, in radians.
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f32 Aspect; // Aspect ratio.
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f32 ZNear; // value of the near view-plane.
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f32 ZFar; // Z-value of the far view-plane.
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SViewFrustum ViewArea;
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bool InputReceiverEnabled;
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};
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} // end namespace
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} // end namespace
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#endif
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