7kaa/include/OPLASMA.h

/*
 * Seven Kingdoms: Ancient Adversaries
 *
 * Copyright 1997,1998 Enlight Software Ltd.
 *
 * 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, see <http://www.gnu.org/licenses/>.
 *
 */

// Filename    : OPLASMA.H
// Description : header file of class Plasma
// Ownership   : Gilbert

#ifndef __OPLASMA_H
#define __OPLASMA_H

typedef unsigned char BYTE;
typedef unsigned short U16;
typedef signed long S32;

// -------- Define Class Plasma --------//

class Plasma
{
public:
	short max_x;				// no. of column
	short max_y;				// no. of row
	short *matrix;				// 2D matrix of (max_x+1)*(max_y+1)
	int iparmx;					// iparmx = parm.x * 16
	int recur1;
	int recur_level;


public:
	Plasma();
	~Plasma();
	void	init(short x, short y);
	void	deinit();
	void	generate(int genMethod, int grainFactor, int randomSeed);
	void	generate2(int genMethod, int grainFactor, int randomSeed);

	short get_pix(short x, short y);
	void	plot(short x, short y, short value);
	void	add_base_level(short baseLevel);
	int	calc_tera_base_level(short minHeight);
	int	stat(int groups, short *minHeights, int *freq);

	void	shuffle_level(short minHeight, short maxHeight, short amplitude);

private:
	void	sub_divide(int x1, int y1, int x2, int y2);
	int	new_sub_divide(int x1,int y1,int x2,int y2, int recur);
	U16	adjust(int xa,int ya,int x,int y,int xb,int yb);


};

#endif