Magic_Game/src/kiwano/2d/action/Action.cpp

// Copyright (c) 2016-2018 Kiwano - Nomango
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

#include <kiwano/2d/action/Action.h>
#include <kiwano/2d/Actor.h>

namespace kiwano
{
	Action::Action()
		: running_(true)
		, detach_target_(false)
		, loops_done_(0)
		, loops_(0)
		, status_(Status::NotStarted)
	{
	}

	Action::~Action()
	{
	}

	void Action::Init(Actor* target)
	{
	}

	void Action::Update(Actor* target, Duration dt)
	{
		Complete(target);
	}

	void Action::UpdateStep(Actor* target, Duration dt)
	{
		elapsed_ += dt;

		if (status_ == Status::NotStarted)
		{
			status_ = delay_.IsZero() ? Status::Started : Status::Delayed;
			Init(target);
		}

		switch (status_)
		{
		case Status::Delayed:
			if (elapsed_ >= delay_)
			{
				status_ = Status::Started;
			}
			break;

		case Status::Started:
			Update(target, dt);
			break;
		}

		if (status_ == Status::Done)
		{
			if (cb_done_)
				cb_done_();

			if (detach_target_)
				target->RemoveFromParent();

			status_ = Status::Removeable;
		}
	}

	void Action::Complete(Actor* target)
	{
		if (cb_loop_done_)
			cb_loop_done_();

		if (loops_ >= 0
			&& loops_done_ >= loops_)
		{
			Done();
		}
		else
		{
			Init(target);	// reinit when a loop is done
		}

		++loops_done_;
	}

	void Action::Restart(Actor* target)
	{
		status_ = Status::NotStarted;
		elapsed_ = 0;
		loops_done_ = 0;

		Init(target);
	}

}