animation-state.cpp

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/*
 * animation-state.cpp
 *
 * Copyright (C) 2010  Thomas A. Vaughan
 * 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.
 *     * Neither the name of the <organization> nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THOMAS A. VAUGHAN ''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 THOMAS A. VAUGHAN 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.
 *
 *
 * Simple, general per-object animation state tracking.  See animation-state.h
 */

// includes --------------------------------------------------------------------
#include "animation-state.h"            // always include our own header first!


namespace glut {


////////////////////////////////////////////////////////////////////////////////
//
//      static helper methods
//
////////////////////////////////////////////////////////////////////////////////



////////////////////////////////////////////////////////////////////////////////
//
//      AnimationState -- public class methods
//
////////////////////////////////////////////////////////////////////////////////

AnimationState::AnimationState
(
void
)
throw()
{
}



void
AnimationState::serialize
(
OUT std::string& state
)
const
{
        state.clear();

        const int bufsize = 64;
        char buffer[bufsize];

        int N = this->size();
        for (int i = 0; i < N; ++i) {
                const anim_channel_state_t& acs = this->operator[](i);
                snprintf(buffer, bufsize, "%d:%d|",
                    (int) acs.animIndex, (int) acs.msElapsed);
                state += buffer;
        }
        //DPRINTF("Animation state: '%s'", state.c_str());
}



bool
AnimationState::deserialize
(
IN const char * state
)
{
        ASSERT(state, "null");

        this->clear();  // nuke our state, we will replace with input
        const char * p = state;
        while (*p) {
                anim_channel_state_t acs;
                acs.animIndex = (int16_t) atoi(p);
                while (*p && ':' != *p) { ++p; }
                if (!*p) {
                        DPRINTF("Malformed animation state?");
                        return false;
                }
                ++p; // skip colon
                acs.msElapsed = (int32_t) atoi(p);
                while (*p && '|' != *p) { ++p; }
                if (!*p) {
                        DPRINTF("Malformed animation state?");
                        return false;
                }
                ++p; // skip pipe
                this->push_back(acs);
        }
        // DPRINTF("Read %d animation channels", this->size());
        return true;
}



////////////////////////////////////////////////////////////////////////////////
//
//      public API
//
////////////////////////////////////////////////////////////////////////////////



};      // glut namespace