Character.h

/**

    Sparky - A little game about a dog that is trying to make friends
    Copyright (C) 2017  Gerald Isaac Schwarz

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License version 2.0 only,
    as published by the Free Software Foundation.

    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.,
    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

**/

#ifndef Character_h
#define Character_h

class Simulator;

//Defines a character in the simulation. This is not meant to be instantiated directly but is a base class for specific character types.
class Character {
	protected:
		//The number of steps each character is to take before changing direction:
		static const int MAX_STEPS = 17;
		
		//Steps counter:
		int steps;
		
		//A pointer to the simulation:
		Simulator * sim;
		
		//The dimensions of the bounding box for the character:
		int width;
		int height;
		
		//Current location:
		int location_x;
		int location_y;
		
		//Change in x and change in y in each step. Values can be -1, 0, or 1:
		int direction_x;
		int direction_y;
		
		//Whether the character is a friend or a stranger:
		int team;
		
		//Function for randomly changing the direction of the character:
		void changeDirection();

	public:
		//The constructor takes a pointer to the simulation as well as those of the character's bounding box:
		Character(Simulator * sim, int width, int height);
		
		//Uses ncurses to draw the character in its current location on the screen:
		virtual void draw() = 0;
		
		//Moves the character one step and randomly change direction if needed:
		void advance();
		
		//Changes the direction to the specified direction and then moves the character one step. If the character moved, return 1. If not, return 0:
		int advance(int direction_x, int direction_y);
		
		//Check for collision with an 'other' character:
		int collides(Character * other);
		
		//Change the team:
		void setTeam(int team);
		
		//Get the team:
		int getTeam();
		
		//Compare this team with another team (0 = different, 1 = same):
		int teamEquals(int other);
};

#endif