animator.cpp

Go to the documentation of this file.

/*
 * Copyright (C) 2023  Christopher J. Howard
 *
 * This file is part of Antkeeper source code.
 *
 * Antkeeper source code is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Antkeeper source code is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Antkeeper source code.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#include <engine/animation/animator.hpp>
#include <engine/animation/animation.hpp>
#include <stdexcept>
 
animator::animator():
    animating(0)
{}
 
void animator::animate(float dt)
{
    // Advance animations
    ++animating;
    for (animation_base* animation: animations)
    {
        animation->advance(dt);
    }
    --animating;
}
 
void animator::add_animation(animation_base* animation)
{
    if (animating)
        throw std::runtime_error("Attempting to add animation to animator while animating");
    
    animations.emplace(animation);
}
 
void animator::remove_animation(animation_base* animation)
{
    if (animating)
        throw std::runtime_error("Attempting to remove animation from animator while animating");
        
    auto it = animations.find(animation);
    if (it != animations.end())
    {
        animations.erase(it);
    }
}
 
void animator::remove_animations()
{
    if (animating)
        throw std::runtime_error("Attempting to remove animations from animator while animating");
    
    animations.clear();
}