/*
  Copyright (C) 2006 Bradley Arsenault

  This program 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 2 of the License, or
  (at your option) any later version.

  This program 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 this program; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#ifndef AIEcho_h
#define AIEcho_h


#include <Map.h>

namespace AIEcho
{
	struct position
	{
		position(int x, int y);
		int x;
		int y;
	};


	namespace Gradients
	{
		namespace Entities
		{
			class Entity
			{
			public:
				virtual bool operator()(Map* map, int posx, int posy);
			};

			class Building : public Entity
			{
			public:
				Building(int building_type, int team);
				bool operator()(Map* map, int posx, int posy);
			};

			class AnyTeamBuilding : public Entity
			{
			public:
				AnyTeamBuilding(int team);
				bool operator()(Map* map, int posx, int posy);
			};

			class AnyBuilding : public Entity
			{
			public:
				AnyBuilding();
				bool operator()(Map* map, int posx, int posy);
			};

			class Ressource : public Entity
			{
			public:
				Ressource(int ressource_type);
				bool operator()(Map* map, int posx, int posy);
			};

			class AnyRessource : public Entity
			{
			public:
				AnyRessource();
				bool operator()(Map* map, int posx, int posy);
			};

			class Water : public Entity
			{
			public:
				Water();
				bool operator()(Map* map, int posx, int posy);
			};
		};

		class GradientInfo
		{
		public:
			GradientInfo();
			void add_source(Entities::Entity* source);
			void add_obstacle(Entities::Entity* obstacle);
		};

		class Gradient
		{
		public:
			Gradient(const GradientInfo& gi);
			void recalculate(Map* map);
			int get_height(int posx, int posy);
		};

		class GradientManager
		{
		public:
			GradientManager();
			Gradient& get_gradient(const GradientInfo& gi);
			void update();
		};
	};

	namespace Construction
	{
		class Constraint
		{
		public:
			Constraint();
		};

		class MinimumDistance : public Constraint
		{
		public:
			MinimumDistance(const GradientInfo& gi, int distance);
		};

		class MaximumDistance: public Constraint
		{
		public:
			MaximumDistance(const GradientInfo& gi, int distance);
		};

		class MinimizedDistance : public Constraint
		{
		public:
			MinimizedDistance(const GradientInfo& gi, int weight);
		};

		class MaximizedDistance : public Constraint
		{
		public:
			MaximizedDistance(const GradientInfo& gi, int weight);
		};

		class BuildingOrder
		{
		public:
			BuildingOrder(int building_type, int number_of_workers);
			void add_constraint(const Constraint& constraint);
			position find_location(GradientManager& manager);
		};
	};

	class Echo
	{
	public:
		Echo();
		void add_building_order(BuildingOrder& bo);
	};
};


#endif