// Copyright (c) 2016-2018 Easy2D - 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.

#pragma once
#include "include-forwards.h"
#include "time.h"
#include "window.h"
#include "render.h"
#include "input.h"
#include "audio.h"
#include "Event.hpp"

namespace easy2d
{
	struct Options
	{
		std::wstring	title;	// 标题
		int		width;	// 宽度
		int		height;	// 高度
		LPCWSTR	icon;	// 图标
		bool	vsync;	// 垂直同步
		bool	debug;	// 调试模式

		Options()
			: title(L"Easy2D Game")
			, width(640)
			, height(480)
			, icon(nullptr)
			, vsync(true)
			, debug(false)
		{}
	};


	class Game
		: protected Noncopyable
	{
	public:
		Game();

		Game(
			Options const& options
		);

		virtual ~Game();

		// 退出游戏
		virtual void OnExit() {}

		// 窗口关闭
		virtual bool OnClose() { return true; }

		// 初始化
		void Init(
			Options const& options
		);

		// 运行
		void Run();

		// 结束
		void Quit();

		// 切换场景
		void EnterScene(
			spScene const& scene			/* 场景 */
		);

		// 切换场景
		void EnterScene(
			spScene const& scene,			/* 场景 */
			spTransition const& transition	/* 场景动画 */
		);

		// 获取当前场景
		spScene const& GetCurrentScene();

		// 设置变速
		void SetTimeScale(float scale);

	private:
		void Render(HWND);

		void Update();

		bool HandleMessage(
			HWND hwnd,
			UINT msg,
			WPARAM wparam,
			LPARAM lparam
		);

		void Dispatch(
			Event* event
		);

		static LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);

	private:
		bool			debug_;
		bool			active_;
		float			time_scale_;
		spScene			curr_scene_;
		spScene			next_scene_;
		spTransition	transition_;
	};
}