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/*
* 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 : OFLAME.H
// Description : header file of class Flame
// Ownership : Gilbert
#ifndef __OFLAME_H
#define __OFLAME_H
//---------- define constant -------//
#define FLAME_GROW_STEP 4
enum FlameType
{
FLAME_CENTRE_POINT,
FLAME_RANDOM_POINTS,
FLAME_WIDE
};
//-------- define class Flame ----------//
class VgaBuf;
class Flame
{
public:
unsigned char* heat_map; // array of size map_width * map_height
unsigned char* bitmap; // array of size map_width * map_height +4
// to be drawn by IMGbltTrans and IMGbltAreaTrans
unsigned seed;
short map_width;
short map_height;
short decay;
short smooth;
short shade_base; // init -1, changed after gen_bitmap
// parameter for init and displaying flame[0], flame[1]...
public:
static int grade(int flameStr) { return (FLAME_GROW_STEP * flameStr)/(20+ flameStr); }
static int default_width(int flameGrade) { return flameGrade*8+40; }
static int default_height(int flameGrade) { return flameGrade*12+28; }
static int offset_x(int flameGrade) { return -4-4*flameGrade; } // (ZOOM_LOC_HEIGHT - Flame::default_width)/2
static int offset_y(int flameGrade) { return 4-flameGrade*12; } // ZOOM_LOC_WIDTH - Flame::default_height
static int base_width(int flameGrade) { return flameGrade *2 +4; }
public:
Flame();
Flame(short width, short height, short flameWidth, FlameType);
~Flame();
void init(short width, short height, short flameWidth, FlameType);
void deinit();
Flame& operator= (Flame &);
void heat_up(short);
void rise(short wind); // -1 to +1
void gen_bitmap(unsigned char shadeColor = 0xb4);
void mask_bottom();
void mask_transparent();
void draw_step(short left, short bottom, VgaBuf *vgabuf, short wind); // coordinate of left and bottom
void flush_point(short x=-1, short y=-1);
private:
unsigned random(unsigned);
};
extern Flame flame[FLAME_GROW_STEP];
#endif
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