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36 | |
37 | #include "qfirstpersoncameracontroller.h" |
38 | |
39 | #include <Qt3DRender/QCamera> |
40 | |
41 | QT_BEGIN_NAMESPACE |
42 | |
43 | namespace Qt3DExtras { |
44 | |
45 | /*! |
46 | \class Qt3DExtras::QFirstPersonCameraController |
47 | \ingroup qt3d-extras-cameracontrollers |
48 | \brief The QFirstPersonCameraController class allows controlling the scene camera |
49 | from the first person perspective. |
50 | \inmodule Qt3DExtras |
51 | \since 5.7 |
52 | \inherits Qt3DCore::QEntity |
53 | |
54 | The controls are: |
55 | \table |
56 | \header |
57 | \li Input |
58 | \li Action |
59 | \row |
60 | \li Left mouse button |
61 | \li While the left mouse button is pressed, mouse movement along x-axis pans the camera and |
62 | movement along y-axis tilts it. |
63 | \row |
64 | \li Mouse scroll wheel |
65 | \li Zooms the camera in and out without changing the view center. |
66 | \row |
67 | \li Shift key |
68 | \li Turns the fine motion control active while pressed. Makes mouse pan and tilt less |
69 | sensitive. |
70 | \row |
71 | \li Arrow keys |
72 | \li Move the camera horizontally relative to camera viewport. |
73 | \row |
74 | \li Page up and page down keys |
75 | \li Move the camera vertically relative to camera viewport. |
76 | \row |
77 | \li Escape |
78 | \li Moves the camera so that entire scene is visible in the camera viewport. |
79 | \endtable |
80 | */ |
81 | |
82 | QFirstPersonCameraController::(Qt3DCore::QNode *parent) |
83 | : QAbstractCameraController(parent) |
84 | { |
85 | } |
86 | |
87 | QFirstPersonCameraController::() |
88 | { |
89 | } |
90 | |
91 | |
92 | void QFirstPersonCameraController::(const QAbstractCameraController::InputState &state, float dt) |
93 | { |
94 | Qt3DRender::QCamera *theCamera = camera(); |
95 | |
96 | if (theCamera == nullptr) |
97 | return; |
98 | |
99 | theCamera->translate(vLocal: QVector3D(state.txAxisValue * linearSpeed(), |
100 | state.tyAxisValue * linearSpeed(), |
101 | state.tzAxisValue * linearSpeed()) * dt); |
102 | if (state.leftMouseButtonActive) { |
103 | float theLookSpeed = lookSpeed(); |
104 | if (state.shiftKeyActive) { |
105 | theLookSpeed *= 0.2f; |
106 | } |
107 | |
108 | const QVector3D upVector(0.0f, 1.0f, 0.0f); |
109 | |
110 | theCamera->pan(angle: state.rxAxisValue * theLookSpeed * dt, axis: upVector); |
111 | theCamera->tilt(angle: state.ryAxisValue * theLookSpeed * dt); |
112 | } |
113 | } |
114 | |
115 | } // Qt3DExtras |
116 | |
117 | QT_END_NAMESPACE |
118 | |
119 | #include "moc_qfirstpersoncameracontroller.cpp" |
120 | |