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Dogcows Code - chaz/yoink/blob - src/Moof/Transition.hh
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 *******************************************************************************/
29 #ifndef _MOOF_TRANSITION_HH_
30 #define _MOOF_TRANSITION_HH_
32 #include <boost/shared_ptr.hpp>
34 #include <Moof/Core.hh>
35 #include <Moof/Interpolator.hh>
36 #include <Moof/Layer.hh>
37 #include <Moof/Log.hh>
38 #include <Moof/Math.hh>
39 #include <Moof/OpenGL.hh>
40 #include <Moof/Texture.hh>
47 class Transition
: public Layer
56 Transition(LayerP t
, LayerP f
, const T
& interp
) :
61 typedef boost::shared_ptr
<Transition
> Ptr
;
63 static Ptr
alloc(LayerP t
, LayerP f
, const T
& interp
)
65 return Ptr(new Transition(t
, f
, interp
));
69 void removedFromCore()
71 if (mTo
) core
.push(mTo
);
74 void update(Scalar t
, Scalar dt
)
76 mInterp
.update(t
, dt
);
78 if (mFrom
) mFrom
->update(t
, dt
);
79 if (mTo
) mTo
->update(t
, dt
);
83 // to should /replace/ this
88 void drawFade(Scalar alpha
) const
91 glDisable(GL_DEPTH_TEST
);
92 glDisable(GL_ALPHA_TEST
);
94 glMatrixMode(GL_PROJECTION
);
97 glMatrixMode(GL_MODELVIEW
);
100 glColor(1.0, 1.0, 1.0, alpha
);
101 Mf::Texture::resetBind();
103 //glRectf(-1.0f, -1.0f, 1.0f, 1.0f);
105 glVertex(-1.0, -1.0, -0.1);
106 glVertex(1.0, -1.0, -0.1);
107 glVertex(1.0, 1.0, -0.1);
108 glVertex(-1.0, 1.0, -0.1);
112 glEnable(GL_DEPTH_TEST
);
113 glEnable(GL_ALPHA_TEST
);
115 glMatrixMode(GL_PROJECTION
);
117 glMatrixMode(GL_MODELVIEW
);
121 void draw(Scalar alpha
) const
123 Scalar a
= mInterp
.getState(alpha
);
124 logInfo
<< "transition state: " << a
<< std::endl
;
126 //glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
132 glRotate(180.0 * a
, 0.0, 1.0, 0.0);
142 glRotate(180.0 * (1.0 - a
), 0.0, 1.0, 0.0);
149 bool handleEvent(const Event
& event
)
153 return mTo
->handleEvent(event
);
157 return mFrom
->handleEvent(event
);
166 #endif // _MOOF_TRANSITION_HH_
168 /** vim: set ts=4 sw=4 tw=80: *************************************************/
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