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Dogcows Code - chaz/yoink/blob - src/Moof/Camera.cc
2 /*******************************************************************************
4 Copyright (c) 2009, Charles McGarvey
7 Redistribution and use in source and binary forms, with or without
8 modification, are permitted provided that the following conditions are met:
10 * Redistributions of source code must retain the above copyright notice,
11 this list of conditions and the following disclaimer.
12 * Redistributions in binary form must reproduce the above copyright notice,
13 this list of conditions and the following disclaimer in the documentation
14 and/or other materials provided with the distribution.
16 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
20 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
23 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *******************************************************************************/
36 void Camera::setPosition(const Vector3
& point
)
40 //Vector3 coeff[2] = {position_, point};
41 //pInterp_.init(coeff, 0.1);
43 void Camera::setRotation(const Quaternion
& rotation
)
49 void Camera::setProjection(const Matrix4
& projection
)
51 projection_
= projection
;
54 void Camera::setProjection(Scalar fovy
, Scalar aspect
, Scalar abutting
,
57 cml::matrix_perspective_yfov_RH(projection_
, fovy
, aspect
, abutting
,
58 distant
, cml::z_clip_neg_one
);
63 void Camera::uploadProjectionToGL() const
65 glMatrixMode(GL_PROJECTION
);
66 glLoadMatrix(projection_
.data());
68 glMatrixMode(GL_MODELVIEW
);
71 void Camera::update(Scalar t
, Scalar dt
)
73 //pInterp_.update(dt);
74 //position_ = pInterp_.getState(0.0);
76 //calculateSecondary();
80 void Camera::lookAt(const Vector3
& point
)
82 cml::quaternion_rotation_aim_at(rotation_
, position_
, point
,
83 Vector3(0.0, -1.0, 0.0));
87 void Camera::handleEvent(const Event
& event
)
92 if (event
.key
.keysym
.sym
== SDLK_RIGHT
)
94 Vector3 vec
= position_
;
98 else if (event
.key
.keysym
.sym
== SDLK_LEFT
)
100 Vector3 vec
= position_
;
104 else if (event
.key
.keysym
.sym
== SDLK_UP
)
106 Vector3 vec
= position_
;
110 else if (event
.key
.keysym
.sym
== SDLK_DOWN
)
112 Vector3 vec
= position_
;
116 else if (event
.key
.keysym
.sym
== SDLK_PAGEUP
)
118 Vector3 vec
= position_
;
122 else if (event
.key
.keysym
.sym
== SDLK_PAGEDOWN
)
124 Vector3 vec
= position_
;
130 case SDL_MOUSEMOTION
:
132 Scalar xrel
= cml::rad(Scalar(event
.motion
.xrel
) / 5.0);
133 Scalar yrel
= cml::rad(Scalar(event
.motion
.yrel
) / 5.0);
135 Quaternion rotation
= rotation_
;
137 cml::quaternion_rotate_about_world_x(rotation
, yrel
);
138 //rotation_.normalize();
139 cml::quaternion_rotate_about_world_y(rotation
, xrel
);
140 rotation
.normalize();
142 setRotation(rotation
);
146 case SDL_MOUSEBUTTONDOWN
:
147 if (event
.button
.button
== SDL_BUTTON_WHEELUP
)
149 Vector3 vec
= position_
;
153 else if (event
.button
.button
== SDL_BUTTON_WHEELDOWN
)
155 Vector3 vec
= position_
;
162 calculateSecondary();
165 void Camera::calculateSecondary()
167 cml::matrix_rotation_quaternion(modelview_
, rotation_
);
170 cml::matrix_translation(translate
, position_
);
172 //modelview_.transpose();
173 modelview_
*= translate
;
174 //modelview_ = translate * modelview_;
176 frustum_
.init(modelview_
, projection_
);
182 /** vim: set ts=4 sw=4 tw=80: *************************************************/
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