new level-based controllers

[chaz/yoink] / src / Moof / Layer.hh

diff --git a/src/Moof/Layer.hh b/src/Moof/Layer.hh
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+
+/*******************************************************************************
+
+ 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_LAYER_HH_
+#define _MOOF_LAYER_HH_
+
+#include <boost/shared_ptr.hpp>
+
+#include <Moof/Drawable.hh>
+#include <Moof/Event.hh>
+#include <Moof/Math.hh>
+
+
+namespace Mf {
+
+
+// forward declaration
+class Engine;
+
+
+struct Layer : public Drawable
+{
+       virtual ~Layer() {}
+
+       virtual void pushed(Engine& engine) {}
+       virtual void popped(Engine& engine) {}
+
+       virtual void update(Scalar t, Scalar dt) {}
+       virtual void draw(Scalar alpha) const {}
+       virtual bool handleEvent(const Event& event) { return false; }
+};
+
+typedef boost::shared_ptr<Layer> LayerP;
+
+
+} // namespace Mf
+
+#endif // _MOOF_LAYER_HH_
+
+/** vim: set ts=4 sw=4 tw=80: *************************************************/
+