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/**
** Spellbook.cc - Spellbook object.
**
** Written: 10/1/98 - JSF
**/
/*
Copyright (C) 2000 The Exult Team.
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.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "spellbook.h"
#include "gamewin.h"
#include "gamemap.h"
#include "utils.h"
#include "game.h"
#include "Gump_manager.h"
using std::memcpy;
using std::ostream;
/*
* Create a spellbook from Ireg data.
*/
Spellbook_object::Spellbook_object
(
int shapenum, int framenum,
unsigned int shapex, unsigned int shapey,
unsigned int lft,
unsigned char *c, // Circle spell flags.
uint32 f // Flags (unknown).
) : Ireg_game_object(shapenum, framenum,
shapex, shapey, lft), flags(f), bookmark(-1)
{
memcpy(circles, c, sizeof(circles));
}
/*
* Add a spell.
*
* Output: 0 if already have it, 1 if successful.
*/
int Spellbook_object::add_spell
(
int spell // 0-71
)
{
int circle = spell/8;
int num = spell%8; // # within circle.
if (circles[circle] & (1<<num))
return 0; // Already have it.
circles[circle] |= (1<<num);
return 1;
}
/*
* Show book when double-clicked.
*/
void Spellbook_object::activate
(
Usecode_machine *umachine,
int event
)
{
Game_window *gwin = Game_window::get_game_window();
gwin->get_gump_man()->add_gump(this, Game::get_game_type() == BLACK_GATE ? 43 : 38);
}
/*
* Write out.
*/
void Spellbook_object::write_ireg
(
ostream& out
)
{
unsigned char buf[19]; // 18-byte entry + length-byte.
buf[0] = 18;
uint8 *ptr = &buf[1]; // To avoid confusion about offsets.
write_common_ireg(ptr); // Fill in bytes 1-4.
ptr += 4;
memcpy(ptr, &circles[0], 5); // Store the way U7 does it.
ptr += 5;
*ptr++ = (get_lift()&15)<<4; // Low bits?++++++
memcpy(ptr, &circles[5], 4); // Rest of spell circles.
ptr += 4;
Write4(ptr, flags);
out.write((char*)buf, sizeof(buf));
// Write scheduled usecode.
Game_map::write_scheduled(out, this);
}
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