X-Git-Url: https://git.dogcows.com/gitweb?a=blobdiff_plain;f=src%2FMoof%2FTransition.hh;fp=src%2FMoof%2FTransition.hh;h=cf1595c125bb351556b11d720fcbeeeb1c422672;hb=a4debfe4a5f5d339410788971b698ba00cb7f09c;hp=0000000000000000000000000000000000000000;hpb=892da43bf5796e7c5f593a6d0f53bd797a36bd3e;p=chaz%2Fyoink

diff --git a/src/Moof/Transition.hh b/src/Moof/Transition.hh
new file mode 100644
index 0000000..cf1595c
--- /dev/null
+++ b/src/Moof/Transition.hh
@@ -0,0 +1,177 @@
+
+/*******************************************************************************
+
+ Copyright (c) 2009, Charles McGarvey
+ All rights reserved.
+ 
+ Redistribution   and   use  in  source  and  binary  forms,  with  or  without
+ modification, are permitted provided that the following conditions are met:
+ 
+   * Redistributions  of  source  code  must retain the above copyright notice,
+     this list of conditions and the following disclaimer.
+   * Redistributions  in binary form must reproduce the above copyright notice,
+     this  list of conditions and the following disclaimer in the documentation
+     and/or other materials provided with the distribution.
+ 
+ THIS  SOFTWARE  IS  PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND  ANY  EXPRESS  OR  IMPLIED  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED.  IN  NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ FOR  ANY  DIRECT,  INDIRECT,  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ DAMAGES  (INCLUDING,  BUT  NOT  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ SERVICES;  LOSS  OF  USE,  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ CAUSED  AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ OR  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+*******************************************************************************/
+
+#ifndef _MOOF_TRANSITION_HH_
+#define _MOOF_TRANSITION_HH_
+
+#include <boost/shared_ptr.hpp>
+
+#include <Moof/Engine.hh>
+#include <Moof/Interpolator.hh>
+#include <Moof/Layer.hh>
+#include <Moof/Log.hh>
+#include <Moof/Math.hh>
+#include <Moof/OpenGL.hh>
+#include <Moof/Texture.hh>
+
+
+namespace Mf {
+
+
+template <typename T>
+class Transition : public Layer
+{
+	LayerP	to;
+	LayerP	from;
+
+	T		interpolator;
+
+	Engine*	engine;
+
+public:
+
+	Transition(LayerP t, LayerP f, const T& interp) :
+		to(t),
+		from(f),
+		interpolator(interp),
+		engine(0) {}
+
+	typedef boost::shared_ptr<Transition> Ptr;
+
+	static Ptr alloc(LayerP t, LayerP f, const T& interp)
+	{
+		return Ptr(new Transition(t, f, interp));
+	}
+
+
+	void pushed(Engine& e)
+	{
+		engine = &e;
+	}
+
+	void popped(Engine& e)
+	{
+		if (to) e.push(to);
+	}
+
+	void update(Scalar t, Scalar dt)
+	{
+		interpolator.update(t, dt);
+
+		if (from) from->update(t, dt);
+		if (to) to->update(t, dt);
+
+		if (interpolator.isDone())
+		{
+			// to should /replace/ this
+			engine->pop(this);
+		}
+	}
+
+	void drawFade(Scalar alpha) const
+	{
+		// DRAW FADE
+		glDisable(GL_DEPTH_TEST);
+		glDisable(GL_ALPHA_TEST);
+		glEnable(GL_BLEND);
+		glMatrixMode(GL_PROJECTION);
+		glPushMatrix();
+		glLoadIdentity();
+		glMatrixMode(GL_MODELVIEW);
+		glPushMatrix();
+		glLoadIdentity();
+		glColor4(1.0, 1.0, 1.0, alpha);
+		Mf::Texture::resetBind();
+
+		//glRectf(-1.0f, -1.0f, 1.0f, 1.0f);
+		glBegin(GL_QUADS);
+			glVertex3f(-1.0, -1.0, -0.1);
+			glVertex3f(1.0, -1.0, -0.1);
+			glVertex3f(1.0, 1.0, -0.1);
+			glVertex3f(-1.0, 1.0, -0.1);
+		glEnd();
+
+		glDisable(GL_BLEND);
+		glEnable(GL_DEPTH_TEST);
+		glEnable(GL_ALPHA_TEST);
+
+		glMatrixMode(GL_PROJECTION);
+		glPopMatrix();
+		glMatrixMode(GL_MODELVIEW);
+		glPopMatrix();
+	}
+
+	void draw(Scalar alpha) const
+	{
+		Scalar a = interpolator.getState(alpha);
+		logInfo("draw state: %f", a);
+
+		//glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+
+		if (from)
+		{
+			glPushMatrix();
+			glLoadIdentity();
+			glRotate(180.0 * a, 0.0, 1.0, 0.0);
+			from->draw(alpha);
+			glPopMatrix();
+		}
+			//drawFade(a);
+
+		if (to)
+		{
+			glPushMatrix();
+			glLoadIdentity();
+			glRotate(180.0 * (1.0 - a), 0.0, 1.0, 0.0);
+			to->draw(alpha);
+			glPopMatrix();
+		}
+			//drawFade(1.0 - a);
+	}
+
+	bool handleEvent(const Event& event)
+	{
+		if (to)
+		{
+			return to->handleEvent(event);
+		}
+		else if (from)
+		{
+			return from->handleEvent(event);
+		}
+		return false;
+	}
+};
+
+
+} // namespace Mf
+
+#endif // _MOOF_TRANSITION_HH_
+
+/** vim: set ts=4 sw=4 tw=80: *************************************************/
+