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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::uploadToGL() const
65 glMatrixMode(GL_PROJECTION
);
66 glMultMatrix(projection_
.data());
68 glMatrixMode(GL_MODELVIEW
);
69 glMultMatrix(modelview_
.data());
72 void Camera::update(Scalar t
, Scalar dt
)
74 //pInterp_.update(dt);
75 //position_ = pInterp_.getState(0.0);
77 //calculateSecondary();
81 void Camera::lookAt(const Vector3
& point
)
83 cml::quaternion_rotation_aim_at(rotation_
, position_
, point
,
84 Vector3(0.0, -1.0, 0.0));
88 void Camera::handleEvent(const Event
& event
)
93 if (event
.key
.keysym
.sym
== SDLK_RIGHT
)
95 Vector3 vec
= position_
;
99 else if (event
.key
.keysym
.sym
== SDLK_LEFT
)
101 Vector3 vec
= position_
;
105 else if (event
.key
.keysym
.sym
== SDLK_UP
)
107 Vector3 vec
= position_
;
111 else if (event
.key
.keysym
.sym
== SDLK_DOWN
)
113 Vector3 vec
= position_
;
117 else if (event
.key
.keysym
.sym
== SDLK_PAGEUP
)
119 Vector3 vec
= position_
;
123 else if (event
.key
.keysym
.sym
== SDLK_PAGEDOWN
)
125 Vector3 vec
= position_
;
131 case SDL_MOUSEMOTION
:
133 Scalar xrel
= cml::rad(Scalar(event
.motion
.xrel
) / 5.0);
134 Scalar yrel
= cml::rad(Scalar(event
.motion
.yrel
) / 5.0);
136 Quaternion rotation
= rotation_
;
138 cml::quaternion_rotate_about_world_x(rotation
, yrel
);
139 //rotation_.normalize();
140 cml::quaternion_rotate_about_world_y(rotation
, xrel
);
141 rotation
.normalize();
143 setRotation(rotation
);
147 case SDL_MOUSEBUTTONDOWN
:
148 if (event
.button
.button
== SDL_BUTTON_WHEELUP
)
150 Vector3 vec
= position_
;
154 else if (event
.button
.button
== SDL_BUTTON_WHEELDOWN
)
156 Vector3 vec
= position_
;
163 calculateSecondary();
166 void Camera::calculateSecondary()
168 cml::matrix_rotation_quaternion(modelview_
, rotation_
);
171 cml::matrix_translation(translate
, position_
);
173 //modelview_.transpose();
174 modelview_
*= translate
;
175 //modelview_ = translate * modelview_;
177 frustum_
.init(modelview_
, projection_
);
183 /** vim: set ts=4 sw=4 tw=80: *************************************************/
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