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source: orxonox.OLD/branches/resources/src/world_entities/camera.h @ 7422

Last change on this file since 7422 was 7173, checked in by bensch, 19 years ago

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File size: 2.6 KB
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1/*!
2 * @file camera.h
3 * Viewpoint controlling class definitions
4*/
5
6#ifndef _CAMERA_H
7#define _CAMERA_H
8
9#include "p_node.h"
10#include "event_listener.h"
11#include "plane.h"
12
13class World;
14class CameraTarget;
15class Event;
16
17//! an enumerator for different types of view
18typedef enum ViewMode
19{
20  VIEW_NORMAL,
21  VIEW_BEHIND,
22  VIEW_FRONT,
23  VIEW_LEFT,
24  VIEW_RIGHT,
25  VIEW_TOP
26};
27
28//! Camera
29/**
30 * This class controls the viewpoint from which the World is rendered.
31*/
32class Camera : public PNode, public EventListener
33{
34 public:
35  Camera();
36  virtual ~Camera();
37
38  void lookAt(PNode* target);
39  CameraTarget* getTarget() const { return this->target; };
40  PNode* getTargetNode() const;
41
42  void setAspectRatio(float aspectRatio);
43  void setClipRegion(float nearClip, float farClip);
44
45  /** @param fovy new field of view factor (in degrees) */
46  void setFovy(float fovy) { this->fovy = fovy; };
47  /** @param fovy new field of view factor (in degrees) to iterate to */
48  void setToFovy(float toFovy) { this->toFovy = toFovy; };
49
50  void setViewMode(ViewMode mode);
51  inline const Vector& getViewVector() const { return this->viewVector; }
52  inline const Vector& getUpVector() const { return this->upVector; }
53  inline const Plane& getViewFrustum() const { return this->frustumPlane; }
54
55  inline float distance(const Vector& distance) const { return this->frustumPlane.distancePoint(distance); }
56  inline float distance(const PNode* node) const { return distance(node->getAbsCoor()); }
57
58  void tick(float dt);
59  void apply ();
60  void project();
61
62  void process(const Event &event);
63
64 private:
65  CameraTarget*     target;          //!< The Target of the Camera (where this Camera Looks at)
66
67  float             fovy;            //!< The field of view Angle (in degrees).
68  float             aspectRatio;     //!< The aspect ratio (width / height).
69  float             nearClip;        //!< The near clipping plane.
70  float             farClip;         //!< The far clipping plane.
71
72  float             toFovy;          //!< The fovy-mode to iterate to.
73  ViewMode          currentMode;     //!< The ViewMode the camera is in
74
75  Vector            delay;
76  Plane             frustumPlane;    //!< plane that marks the view frustum
77  Vector            viewVector;      //!< the direction of the camera view
78  Vector            upVector;        //!< direction of the up vector
79};
80
81//! A CameraTarget is where the Camera is looking at.
82class CameraTarget : public PNode
83{
84  friend class Camera;             //! The CameraTarget is a friend of Camera. noone else needs a CameraTarget, so noone else can create it.
85
86 private:
87  CameraTarget();
88
89 public:
90};
91
92
93#endif /* _CAMERA_H */
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